* [PATCH 0/5] ptrace-vs-PREEMPT_RT and freezer rewrite
@ 2022-04-12 11:44 Peter Zijlstra
2022-04-12 11:44 ` [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state Peter Zijlstra
` (4 more replies)
0 siblings, 5 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-12 11:44 UTC (permalink / raw)
To: rjw, oleg, mingo, vincent.guittot, dietmar.eggemann, rostedt,
mgorman, ebiederm, bigeasy, Will Deacon
Cc: linux-kernel, peterz, tj, linux-pm
Hi all,
Reviving the freezer rewrite that was languishing, reinvigorated by the
recent ptrace-vs-PREEMPT_RT trouble.
The first patch adds additional state to signal/ptrace stop states, this state
is then used to fix the PREEMPT_RT issue (patch #2) and allow the new freezer
to recover the special stop states (patch #5).
I'm not completely happy with the ptrace solution, but I think it solves all
the various issues I found. I still dislike wait_task_inactive() and now we
have a second copy of that :/
Please consider carefully..
---
drivers/acpi/x86/s2idle.c | 12 +-
drivers/android/binder.c | 4 +-
drivers/media/pci/pt3/pt3.c | 4 +-
drivers/scsi/scsi_transport_spi.c | 7 +-
fs/cifs/inode.c | 4 +-
fs/cifs/transport.c | 5 +-
fs/coredump.c | 5 +-
fs/nfs/file.c | 3 +-
fs/nfs/inode.c | 12 +-
fs/nfs/nfs3proc.c | 3 +-
fs/nfs/nfs4proc.c | 14 +--
fs/nfs/nfs4state.c | 3 +-
fs/nfs/pnfs.c | 4 +-
fs/xfs/xfs_trans_ail.c | 8 +-
include/linux/completion.h | 1 +
include/linux/freezer.h | 244 ++------------------------------------
include/linux/sched.h | 49 ++++----
include/linux/sched/jobctl.h | 8 ++
include/linux/sched/signal.h | 15 ++-
include/linux/sunrpc/sched.h | 7 +-
include/linux/suspend.h | 8 +-
include/linux/umh.h | 9 +-
include/linux/wait.h | 40 ++++++-
init/do_mounts_initrd.c | 10 +-
kernel/cgroup/legacy_freezer.c | 23 ++--
kernel/exit.c | 4 +-
kernel/fork.c | 5 +-
kernel/freezer.c | 139 ++++++++++++++++------
kernel/futex/waitwake.c | 8 +-
kernel/hung_task.c | 4 +-
kernel/power/hibernate.c | 35 ++++--
kernel/power/main.c | 18 +--
kernel/power/process.c | 10 +-
kernel/power/suspend.c | 12 +-
kernel/power/user.c | 24 ++--
kernel/ptrace.c | 185 +++++++++++++++++++++++------
kernel/sched/completion.c | 9 ++
kernel/sched/core.c | 24 ++--
kernel/signal.c | 23 ++--
kernel/time/hrtimer.c | 4 +-
kernel/umh.c | 18 ++-
mm/khugepaged.c | 4 +-
net/sunrpc/sched.c | 12 +-
net/unix/af_unix.c | 8 +-
44 files changed, 541 insertions(+), 507 deletions(-)
^ permalink raw reply [flat|nested] 38+ messages in thread
* [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state
2022-04-12 11:44 [PATCH 0/5] ptrace-vs-PREEMPT_RT and freezer rewrite Peter Zijlstra
@ 2022-04-12 11:44 ` Peter Zijlstra
2022-04-13 13:29 ` Oleg Nesterov
2022-04-12 11:44 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
` (3 subsequent siblings)
4 siblings, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-12 11:44 UTC (permalink / raw)
To: rjw, oleg, mingo, vincent.guittot, dietmar.eggemann, rostedt,
mgorman, ebiederm, bigeasy, Will Deacon
Cc: linux-kernel, peterz, tj, linux-pm
Currently ptrace_stop() / do_signal_stop() rely on the special states
TASK_TRACED and TASK_STOPPED resp. to keep unique state. That is, this
state exists only in task->__state and nowhere else.
There's two spots of bother with this:
- PREEMPT_RT has task->saved_state which complicates matters,
meaning task_is_{traced,stopped}() needs to check an additional
variable.
- An alternative freezer implementation that itself relies on a
special TASK state would loose TASK_TRACED/TASK_STOPPED and will
result in misbehaviour.
As such, add additional state to task->jobctl to track this state
outside of task->__state.
NOTE: this doesn't actually fix anything yet, just adds extra state.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
include/linux/sched.h | 8 +++-----
include/linux/sched/jobctl.h | 8 ++++++++
include/linux/sched/signal.h | 15 ++++++++++++++-
kernel/ptrace.c | 18 ++++++++++++++----
kernel/signal.c | 9 ++++++---
5 files changed, 45 insertions(+), 13 deletions(-)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -118,11 +118,9 @@ struct task_group;
#define task_is_running(task) (READ_ONCE((task)->__state) == TASK_RUNNING)
-#define task_is_traced(task) ((READ_ONCE(task->__state) & __TASK_TRACED) != 0)
-
-#define task_is_stopped(task) ((READ_ONCE(task->__state) & __TASK_STOPPED) != 0)
-
-#define task_is_stopped_or_traced(task) ((READ_ONCE(task->__state) & (__TASK_STOPPED | __TASK_TRACED)) != 0)
+#define task_is_traced(task) ((READ_ONCE(task->jobctl) & JOBCTL_TRACED) != 0)
+#define task_is_stopped(task) ((READ_ONCE(task->jobctl) & JOBCTL_STOPPED) != 0)
+#define task_is_stopped_or_traced(task) ((READ_ONCE(task->jobctl) & (JOBCTL_STOPPED | JOBCTL_TRACED)) != 0)
/*
* Special states are those that do not use the normal wait-loop pattern. See
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -20,6 +20,10 @@ struct task_struct;
#define JOBCTL_LISTENING_BIT 22 /* ptracer is listening for events */
#define JOBCTL_TRAP_FREEZE_BIT 23 /* trap for cgroup freezer */
+#define JOBCTL_STOPPED_BIT 24
+#define JOBCTL_TRACED_BIT 25
+#define JOBCTL_TRACED_FROZEN_BIT 26
+
#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
#define JOBCTL_STOP_CONSUME (1UL << JOBCTL_STOP_CONSUME_BIT)
@@ -29,6 +33,10 @@ struct task_struct;
#define JOBCTL_LISTENING (1UL << JOBCTL_LISTENING_BIT)
#define JOBCTL_TRAP_FREEZE (1UL << JOBCTL_TRAP_FREEZE_BIT)
+#define JOBCTL_STOPPED (1UL << JOBCTL_STOPPED_BIT)
+#define JOBCTL_TRACED (1UL << JOBCTL_TRACED_BIT)
+#define JOBCTL_TRACED_FROZEN (1UL << JOBCTL_TRACED_FROZEN_BIT)
+
#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
#define JOBCTL_PENDING_MASK (JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -294,8 +294,10 @@ static inline int kernel_dequeue_signal(
static inline void kernel_signal_stop(void)
{
spin_lock_irq(¤t->sighand->siglock);
- if (current->jobctl & JOBCTL_STOP_DEQUEUED)
+ if (current->jobctl & JOBCTL_STOP_DEQUEUED) {
+ current->jobctl |= JOBCTL_STOPPED;
set_special_state(TASK_STOPPED);
+ }
spin_unlock_irq(¤t->sighand->siglock);
schedule();
@@ -437,10 +439,21 @@ extern void signal_wake_up_state(struct
static inline void signal_wake_up(struct task_struct *t, bool resume)
{
+ lockdep_assert_held(&t->sighand->siglock);
+
+ if (resume && !(t->jobctl & JOBCTL_TRACED_FROZEN))
+ t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED);
+
signal_wake_up_state(t, resume ? TASK_WAKEKILL : 0);
}
+
static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
{
+ lockdep_assert_held(&t->sighand->siglock);
+
+ if (resume)
+ t->jobctl &= ~JOBCTL_TRACED;
+
signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
}
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -185,7 +185,12 @@ static bool looks_like_a_spurious_pid(st
return true;
}
-/* Ensure that nothing can wake it up, even SIGKILL */
+/*
+ * Ensure that nothing can wake it up, even SIGKILL
+ *
+ * A task is switched to this state while a ptrace operation is in progress;
+ * such that the ptrace operation is uninterruptible.
+ */
static bool ptrace_freeze_traced(struct task_struct *task)
{
bool ret = false;
@@ -197,6 +202,7 @@ static bool ptrace_freeze_traced(struct
spin_lock_irq(&task->sighand->siglock);
if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
!__fatal_signal_pending(task)) {
+ task->jobctl |= JOBCTL_TRACED_FROZEN;
WRITE_ONCE(task->__state, __TASK_TRACED);
ret = true;
}
@@ -218,9 +224,11 @@ static void ptrace_unfreeze_traced(struc
*/
spin_lock_irq(&task->sighand->siglock);
if (READ_ONCE(task->__state) == __TASK_TRACED) {
- if (__fatal_signal_pending(task))
+ task->jobctl &= ~JOBCTL_TRACED_FROZEN;
+ if (__fatal_signal_pending(task)) {
+ task->jobctl &= ~JOBCTL_TRACED;
wake_up_state(task, __TASK_TRACED);
- else
+ } else
WRITE_ONCE(task->__state, TASK_TRACED);
}
spin_unlock_irq(&task->sighand->siglock);
@@ -475,8 +483,10 @@ static int ptrace_attach(struct task_str
* in and out of STOPPED are protected by siglock.
*/
if (task_is_stopped(task) &&
- task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING))
+ task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING)) {
+ task->jobctl &= ~JOBCTL_STOPPED;
signal_wake_up_state(task, __TASK_STOPPED);
+ }
spin_unlock(&task->sighand->siglock);
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -884,7 +884,7 @@ static int check_kill_permission(int sig
static void ptrace_trap_notify(struct task_struct *t)
{
WARN_ON_ONCE(!(t->ptrace & PT_SEIZED));
- assert_spin_locked(&t->sighand->siglock);
+ lockdep_assert_held(&t->sighand->siglock);
task_set_jobctl_pending(t, JOBCTL_TRAP_NOTIFY);
ptrace_signal_wake_up(t, t->jobctl & JOBCTL_LISTENING);
@@ -930,9 +930,10 @@ static bool prepare_signal(int sig, stru
for_each_thread(p, t) {
flush_sigqueue_mask(&flush, &t->pending);
task_clear_jobctl_pending(t, JOBCTL_STOP_PENDING);
- if (likely(!(t->ptrace & PT_SEIZED)))
+ if (likely(!(t->ptrace & PT_SEIZED))) {
+ t->jobctl &= ~JOBCTL_STOPPED;
wake_up_state(t, __TASK_STOPPED);
- else
+ } else
ptrace_trap_notify(t);
}
@@ -2219,6 +2220,7 @@ static int ptrace_stop(int exit_code, in
* schedule() will not sleep if there is a pending signal that
* can awaken the task.
*/
+ current->jobctl |= JOBCTL_TRACED;
set_special_state(TASK_TRACED);
/*
@@ -2460,6 +2462,7 @@ static bool do_signal_stop(int signr)
if (task_participate_group_stop(current))
notify = CLD_STOPPED;
+ current->jobctl |= JOBCTL_STOPPED;
set_special_state(TASK_STOPPED);
spin_unlock_irq(¤t->sighand->siglock);
^ permalink raw reply [flat|nested] 38+ messages in thread
* [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-12 11:44 [PATCH 0/5] ptrace-vs-PREEMPT_RT and freezer rewrite Peter Zijlstra
2022-04-12 11:44 ` [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state Peter Zijlstra
@ 2022-04-12 11:44 ` Peter Zijlstra
2022-04-13 13:24 ` Oleg Nesterov
2022-04-12 11:44 ` [PATCH 3/5] freezer: Have {,un}lock_system_sleep() save/restore flags Peter Zijlstra
` (2 subsequent siblings)
4 siblings, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-12 11:44 UTC (permalink / raw)
To: rjw, oleg, mingo, vincent.guittot, dietmar.eggemann, rostedt,
mgorman, ebiederm, bigeasy, Will Deacon
Cc: linux-kernel, peterz, tj, linux-pm
Currently ptrace_check_attach() / ptrace_freeze_traced() rely on
specific scheduler behaviour to freeze the task. In specific, it
relies on there not being any blocking behaviour between:
set_special_state(TASK_TRACED);
...
schedule();
specifically it relies on being able to change p->__state between
those two points (to clear/set TASK_WAKEKILL) and relies on
wait_task_inactive() to ensure the task has hit that schedule().
However, PREEMPT_RT is breaking this by introducing sleeping
spinlocks. The consequence of sleeping spinlocks is that p->__state
can change (also see p->saved_state) and that a task can be inactive
(off the runqueue) and *NOT* be at the schedule() as expected.
That is, both the p->__state and wait_task_inactive() usage are
broken.
In order to avoid having to deal with p->saved_state, flip the
wait_task_inactive() and p->__state poking. That is, first wait for
the victim to be in schedule() and then poke p->__state, which is in a
known state by then.
The only problem with this is that it's possible to race with a
concurrent ptrace_detach()+pthread_attach() landing back in the same
situation as before. To deal with this, compare the task's nvcsw
count to make sure there is no scheduling between the initial
quiescence and the final task state poking.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
kernel/ptrace.c | 175 +++++++++++++++++++++++++++++++++++++++++-----------
kernel/sched/core.c | 5 -
2 files changed, 141 insertions(+), 39 deletions(-)
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -186,31 +186,13 @@ static bool looks_like_a_spurious_pid(st
}
/*
- * Ensure that nothing can wake it up, even SIGKILL
+ * Ptrace operation is complete, re-allow TASK_WAKEKILL.
*
- * A task is switched to this state while a ptrace operation is in progress;
- * such that the ptrace operation is uninterruptible.
+ * Unfreeze is easy, since ptrace_check_attach() guarantees the task is off the
+ * runqueue and __TASK_TRACED. If it's still __TASK_TRACED holding
+ * sighand->siglock serializes against ptrace_signal_wake_up() and we can
+ * simply put TASK_WAKEKILL back (or wake because there's a pending fatal).
*/
-static bool ptrace_freeze_traced(struct task_struct *task)
-{
- bool ret = false;
-
- /* Lockless, nobody but us can set this flag */
- if (task->jobctl & JOBCTL_LISTENING)
- return ret;
-
- spin_lock_irq(&task->sighand->siglock);
- if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
- !__fatal_signal_pending(task)) {
- task->jobctl |= JOBCTL_TRACED_FROZEN;
- WRITE_ONCE(task->__state, __TASK_TRACED);
- ret = true;
- }
- spin_unlock_irq(&task->sighand->siglock);
-
- return ret;
-}
-
static void ptrace_unfreeze_traced(struct task_struct *task)
{
if (READ_ONCE(task->__state) != __TASK_TRACED)
@@ -234,6 +216,94 @@ static void ptrace_unfreeze_traced(struc
spin_unlock_irq(&task->sighand->siglock);
}
+/*
+ * In order to start a ptrace operation the victim task must be off the
+ * runqueue in state __TASK_TRACED.
+ */
+static int __ptrace_freeze_cond(struct task_struct *p)
+{
+ if (!task_is_traced(p))
+ return -ESRCH;
+
+ if (task_curr(p))
+ return -EINPROGRESS;
+
+ if (p->on_rq)
+ return -EWOULDBLOCK;
+
+ /*
+ * Due to PREEMPT_RT it is possible the task is blocked on a spinlock
+ * in state TASK_RTLOCK_WAIT, if so, gotta wait until that goes away.
+ */
+ if (!(READ_ONCE(p->__state) & __TASK_TRACED))
+ return -EWOULDBLOCK;
+
+ return 0;
+}
+
+/*
+ * Returns:
+ * 0: task is off runqueue in TASK_TRACED
+ * -ESRCH: not traced
+ * -EINPROGRESS: still running
+ * -EWOULDBLOCK: not running
+ */
+static int __ptrace_pre_freeze(struct task_struct *p, void *arg)
+{
+ int ret;
+
+ ret = __ptrace_freeze_cond(p);
+ if (ret)
+ return ret;
+
+ *(unsigned long *)arg = p->nvcsw;
+
+ return 0;
+}
+
+/*
+ * Returns:
+ * 0: task is off runqueue, now __TASK_TRACED
+ * -ESRCH: not traced, or scheduled since pre_freeze
+ * -GAIN: still running
+ * -EWOULDBLOCK: not running
+ */
+static int __ptrace_freeze(struct task_struct *p, void *arg)
+{
+ int ret;
+
+ ret = __ptrace_freeze_cond(p);
+ if (ret)
+ return ret;
+
+ /*
+ * Task scheduled between __ptrace_pre_freeze() and here, not our task
+ * anymore.
+ */
+ if (*(unsigned long *)arg != p->nvcsw)
+ return -ESRCH;
+
+ if (looks_like_a_spurious_pid(p))
+ return -ESRCH;
+
+ if (__fatal_signal_pending(p))
+ return -ESRCH;
+
+ /*
+ * we hold:
+ *
+ * - tasklist_lock (avoids ptrace_detach)
+ * - p->sighand->siglock (avoids ptrace_signal_wake_up)
+ * - p->pi_lock (avoids anything scheduler)
+ *
+ * task is absolutely frozen, now we can safely take out
+ * TASK_WAKEKILL.
+ */
+ p->jobctl |= JOBCTL_TRACED_FROZEN;
+ WRITE_ONCE(p->__state, __TASK_TRACED);
+ return 0;
+}
+
/**
* ptrace_check_attach - check whether ptracee is ready for ptrace operation
* @child: ptracee to check for
@@ -253,7 +323,36 @@ static void ptrace_unfreeze_traced(struc
*/
static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
{
- int ret = -ESRCH;
+ ktime_t to = TICK_NSEC;
+ unsigned long nvcsw;
+ int ret;
+
+ if (child == current)
+ return -ESRCH;
+
+ if (!ignore_state) for (;;) {
+ /*
+ * Ensure this child is a quiescent TASK_TRACED task.
+ */
+ ret = task_call_func(child, __ptrace_pre_freeze, &nvcsw);
+ switch (ret) {
+ case 0:
+ break;
+ case -ESRCH:
+ return ret;
+ case -EINPROGRESS:
+ while (task_curr(child))
+ cpu_relax();
+ continue;
+ case -EWOULDBLOCK:
+ /*
+ * XXX horrible, randomly wait 1 tick and try again.
+ */
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_hrtimeout(&to, HRTIMER_MODE_REL_HARD);
+ continue;
+ }
+ }
/*
* We take the read lock around doing both checks to close a
@@ -262,29 +361,35 @@ static int ptrace_check_attach(struct ta
* we are sure that this is our traced child and that can only
* be changed by us so it's not changing right after this.
*/
+ ret = -ESRCH;
read_lock(&tasklist_lock);
if (child->ptrace && child->parent == current) {
WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
+ if (ignore_state) {
+ ret = 0;
+ goto unlock;
+ }
+
+ if (child->jobctl & JOBCTL_LISTENING)
+ goto unlock;
+
/*
* child->sighand can't be NULL, release_task()
* does ptrace_unlink() before __exit_signal().
*/
- if (ignore_state || ptrace_freeze_traced(child))
- ret = 0;
- }
- read_unlock(&tasklist_lock);
-
- if (!ret && !ignore_state) {
- if (!wait_task_inactive(child, __TASK_TRACED)) {
+ spin_lock_irq(&child->sighand->siglock);
+ ret = task_call_func(child, __ptrace_freeze, &nvcsw);
+ if (ret) {
/*
- * This can only happen if may_ptrace_stop() fails and
- * ptrace_stop() changes ->state back to TASK_RUNNING,
- * so we should not worry about leaking __TASK_TRACED.
+ * If *anything* changed since __ptrace_pre_freeze()
+ * this fails.
*/
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
ret = -ESRCH;
}
+ spin_unlock_irq(&child->sighand->siglock);
}
+unlock:
+ read_unlock(&tasklist_lock);
return ret;
}
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6310,10 +6310,7 @@ static void __sched notrace __schedule(u
/*
* We must load prev->state once (task_struct::state is volatile), such
- * that:
- *
- * - we form a control dependency vs deactivate_task() below.
- * - ptrace_{,un}freeze_traced() can change ->state underneath us.
+ * that we form a control dependency vs deactivate_task() below.
*/
prev_state = READ_ONCE(prev->__state);
if (!(sched_mode & SM_MASK_PREEMPT) && prev_state) {
^ permalink raw reply [flat|nested] 38+ messages in thread
* [PATCH 3/5] freezer: Have {,un}lock_system_sleep() save/restore flags
2022-04-12 11:44 [PATCH 0/5] ptrace-vs-PREEMPT_RT and freezer rewrite Peter Zijlstra
2022-04-12 11:44 ` [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state Peter Zijlstra
2022-04-12 11:44 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
@ 2022-04-12 11:44 ` Peter Zijlstra
2022-04-12 11:44 ` [PATCH 4/5] freezer,umh: Clean up freezer/initrd interaction Peter Zijlstra
2022-04-12 11:44 ` [PATCH 5/5] freezer,sched: Rewrite core freezer logic Peter Zijlstra
4 siblings, 0 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-12 11:44 UTC (permalink / raw)
To: rjw, oleg, mingo, vincent.guittot, dietmar.eggemann, rostedt,
mgorman, ebiederm, bigeasy, Will Deacon
Cc: linux-kernel, peterz, tj, linux-pm
Rafael explained that the reason for having both PF_NOFREEZE and
PF_FREEZER_SKIP is that {,un}lock_system_sleep() is callable from
kthread context that has previously called set_freezable().
In preparation of merging the flags, have {,un}lock_system_slee() save
and restore current->flags.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
drivers/acpi/x86/s2idle.c | 12 ++++++++----
drivers/scsi/scsi_transport_spi.c | 7 ++++---
include/linux/suspend.h | 8 ++++----
kernel/power/hibernate.c | 35 ++++++++++++++++++++++-------------
kernel/power/main.c | 16 ++++++++++------
kernel/power/suspend.c | 12 ++++++++----
kernel/power/user.c | 24 ++++++++++++++----------
7 files changed, 70 insertions(+), 44 deletions(-)
--- a/drivers/acpi/x86/s2idle.c
+++ b/drivers/acpi/x86/s2idle.c
@@ -538,12 +538,14 @@ void acpi_s2idle_setup(void)
int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg)
{
+ unsigned int sleep_flags;
+
if (!lps0_device_handle || sleep_no_lps0)
return -ENODEV;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
list_add(&arg->list_node, &lps0_s2idle_devops_head);
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return 0;
}
@@ -551,12 +553,14 @@ EXPORT_SYMBOL_GPL(acpi_register_lps0_dev
void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg)
{
+ unsigned int sleep_flags;
+
if (!lps0_device_handle || sleep_no_lps0)
return;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
list_del(&arg->list_node);
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
}
EXPORT_SYMBOL_GPL(acpi_unregister_lps0_dev);
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -998,8 +998,9 @@ void
spi_dv_device(struct scsi_device *sdev)
{
struct scsi_target *starget = sdev->sdev_target;
- u8 *buffer;
const int len = SPI_MAX_ECHO_BUFFER_SIZE*2;
+ unsigned int sleep_flags;
+ u8 *buffer;
/*
* Because this function and the power management code both call
@@ -1007,7 +1008,7 @@ spi_dv_device(struct scsi_device *sdev)
* while suspend or resume is in progress. Hence the
* lock/unlock_system_sleep() calls.
*/
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
if (scsi_autopm_get_device(sdev))
goto unlock_system_sleep;
@@ -1058,7 +1059,7 @@ spi_dv_device(struct scsi_device *sdev)
scsi_autopm_put_device(sdev);
unlock_system_sleep:
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
}
EXPORT_SYMBOL(spi_dv_device);
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -510,8 +510,8 @@ extern bool pm_save_wakeup_count(unsigne
extern void pm_wakep_autosleep_enabled(bool set);
extern void pm_print_active_wakeup_sources(void);
-extern void lock_system_sleep(void);
-extern void unlock_system_sleep(void);
+extern unsigned int lock_system_sleep(void);
+extern void unlock_system_sleep(unsigned int);
#else /* !CONFIG_PM_SLEEP */
@@ -534,8 +534,8 @@ static inline void pm_system_wakeup(void
static inline void pm_wakeup_clear(bool reset) {}
static inline void pm_system_irq_wakeup(unsigned int irq_number) {}
-static inline void lock_system_sleep(void) {}
-static inline void unlock_system_sleep(void) {}
+static inline unsigned int lock_system_sleep(void) { return 0; }
+static inline void unlock_system_sleep(unsigned int flags) {}
#endif /* !CONFIG_PM_SLEEP */
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -92,20 +92,24 @@ bool hibernation_available(void)
*/
void hibernation_set_ops(const struct platform_hibernation_ops *ops)
{
+ unsigned int sleep_flags;
+
if (ops && !(ops->begin && ops->end && ops->pre_snapshot
&& ops->prepare && ops->finish && ops->enter && ops->pre_restore
&& ops->restore_cleanup && ops->leave)) {
WARN_ON(1);
return;
}
- lock_system_sleep();
+
+ sleep_flags = lock_system_sleep();
+
hibernation_ops = ops;
if (ops)
hibernation_mode = HIBERNATION_PLATFORM;
else if (hibernation_mode == HIBERNATION_PLATFORM)
hibernation_mode = HIBERNATION_SHUTDOWN;
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
}
EXPORT_SYMBOL_GPL(hibernation_set_ops);
@@ -713,6 +717,7 @@ static int load_image_and_restore(void)
int hibernate(void)
{
bool snapshot_test = false;
+ unsigned int sleep_flags;
int error;
if (!hibernation_available()) {
@@ -720,7 +725,7 @@ int hibernate(void)
return -EPERM;
}
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
/* The snapshot device should not be opened while we're running */
if (!hibernate_acquire()) {
error = -EBUSY;
@@ -794,7 +799,7 @@ int hibernate(void)
pm_restore_console();
hibernate_release();
Unlock:
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
pr_info("hibernation exit\n");
return error;
@@ -809,9 +814,10 @@ int hibernate(void)
*/
int hibernate_quiet_exec(int (*func)(void *data), void *data)
{
+ unsigned int sleep_flags;
int error;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
if (!hibernate_acquire()) {
error = -EBUSY;
@@ -891,7 +897,7 @@ int hibernate_quiet_exec(int (*func)(voi
hibernate_release();
unlock:
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return error;
}
@@ -1100,11 +1106,12 @@ static ssize_t disk_show(struct kobject
static ssize_t disk_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{
+ int mode = HIBERNATION_INVALID;
+ unsigned int sleep_flags;
int error = 0;
- int i;
int len;
char *p;
- int mode = HIBERNATION_INVALID;
+ int i;
if (!hibernation_available())
return -EPERM;
@@ -1112,7 +1119,7 @@ static ssize_t disk_store(struct kobject
p = memchr(buf, '\n', n);
len = p ? p - buf : n;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
for (i = HIBERNATION_FIRST; i <= HIBERNATION_MAX; i++) {
if (len == strlen(hibernation_modes[i])
&& !strncmp(buf, hibernation_modes[i], len)) {
@@ -1142,7 +1149,7 @@ static ssize_t disk_store(struct kobject
if (!error)
pm_pr_dbg("Hibernation mode set to '%s'\n",
hibernation_modes[mode]);
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return error ? error : n;
}
@@ -1158,9 +1165,10 @@ static ssize_t resume_show(struct kobjec
static ssize_t resume_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{
- dev_t res;
+ unsigned int sleep_flags;
int len = n;
char *name;
+ dev_t res;
if (len && buf[len-1] == '\n')
len--;
@@ -1173,9 +1181,10 @@ static ssize_t resume_store(struct kobje
if (!res)
return -EINVAL;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
swsusp_resume_device = res;
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
+
pm_pr_dbg("Configured hibernation resume from disk to %u\n",
swsusp_resume_device);
noresume = 0;
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -21,14 +21,16 @@
#ifdef CONFIG_PM_SLEEP
-void lock_system_sleep(void)
+unsigned int lock_system_sleep(void)
{
+ unsigned int flags = current->flags;
current->flags |= PF_FREEZER_SKIP;
mutex_lock(&system_transition_mutex);
+ return flags;
}
EXPORT_SYMBOL_GPL(lock_system_sleep);
-void unlock_system_sleep(void)
+void unlock_system_sleep(unsigned int flags)
{
/*
* Don't use freezer_count() because we don't want the call to
@@ -46,7 +48,8 @@ void unlock_system_sleep(void)
* Which means, if we use try_to_freeze() here, it would make them
* enter the refrigerator, thus causing hibernation to lockup.
*/
- current->flags &= ~PF_FREEZER_SKIP;
+ if (!(flags & PF_FREEZER_SKIP))
+ current->flags &= ~PF_FREEZER_SKIP;
mutex_unlock(&system_transition_mutex);
}
EXPORT_SYMBOL_GPL(unlock_system_sleep);
@@ -260,16 +263,17 @@ static ssize_t pm_test_show(struct kobje
static ssize_t pm_test_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{
+ unsigned int sleep_flags;
const char * const *s;
+ int error = -EINVAL;
int level;
char *p;
int len;
- int error = -EINVAL;
p = memchr(buf, '\n', n);
len = p ? p - buf : n;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
level = TEST_FIRST;
for (s = &pm_tests[level]; level <= TEST_MAX; s++, level++)
@@ -279,7 +283,7 @@ static ssize_t pm_test_store(struct kobj
break;
}
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return error ? error : n;
}
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -75,9 +75,11 @@ EXPORT_SYMBOL_GPL(pm_suspend_default_s2i
void s2idle_set_ops(const struct platform_s2idle_ops *ops)
{
- lock_system_sleep();
+ unsigned int sleep_flags;
+
+ sleep_flags = lock_system_sleep();
s2idle_ops = ops;
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
}
static void s2idle_begin(void)
@@ -200,7 +202,9 @@ __setup("mem_sleep_default=", mem_sleep_
*/
void suspend_set_ops(const struct platform_suspend_ops *ops)
{
- lock_system_sleep();
+ unsigned int sleep_flags;
+
+ sleep_flags = lock_system_sleep();
suspend_ops = ops;
@@ -216,7 +220,7 @@ void suspend_set_ops(const struct platfo
mem_sleep_current = PM_SUSPEND_MEM;
}
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
}
EXPORT_SYMBOL_GPL(suspend_set_ops);
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -46,12 +46,13 @@ int is_hibernate_resume_dev(dev_t dev)
static int snapshot_open(struct inode *inode, struct file *filp)
{
struct snapshot_data *data;
+ unsigned int sleep_flags;
int error;
if (!hibernation_available())
return -EPERM;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
if (!hibernate_acquire()) {
error = -EBUSY;
@@ -97,7 +98,7 @@ static int snapshot_open(struct inode *i
data->dev = 0;
Unlock:
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return error;
}
@@ -105,8 +106,9 @@ static int snapshot_open(struct inode *i
static int snapshot_release(struct inode *inode, struct file *filp)
{
struct snapshot_data *data;
+ unsigned int sleep_flags;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
swsusp_free();
data = filp->private_data;
@@ -123,7 +125,7 @@ static int snapshot_release(struct inode
PM_POST_HIBERNATION : PM_POST_RESTORE);
hibernate_release();
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return 0;
}
@@ -131,11 +133,12 @@ static int snapshot_release(struct inode
static ssize_t snapshot_read(struct file *filp, char __user *buf,
size_t count, loff_t *offp)
{
+ loff_t pg_offp = *offp & ~PAGE_MASK;
struct snapshot_data *data;
+ unsigned int sleep_flags;
ssize_t res;
- loff_t pg_offp = *offp & ~PAGE_MASK;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
data = filp->private_data;
if (!data->ready) {
@@ -156,7 +159,7 @@ static ssize_t snapshot_read(struct file
*offp += res;
Unlock:
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return res;
}
@@ -164,11 +167,12 @@ static ssize_t snapshot_read(struct file
static ssize_t snapshot_write(struct file *filp, const char __user *buf,
size_t count, loff_t *offp)
{
+ loff_t pg_offp = *offp & ~PAGE_MASK;
struct snapshot_data *data;
+ unsigned int sleep_flags;
ssize_t res;
- loff_t pg_offp = *offp & ~PAGE_MASK;
- lock_system_sleep();
+ sleep_flags = lock_system_sleep();
data = filp->private_data;
@@ -190,7 +194,7 @@ static ssize_t snapshot_write(struct fil
if (res > 0)
*offp += res;
unlock:
- unlock_system_sleep();
+ unlock_system_sleep(sleep_flags);
return res;
}
^ permalink raw reply [flat|nested] 38+ messages in thread
* [PATCH 4/5] freezer,umh: Clean up freezer/initrd interaction
2022-04-12 11:44 [PATCH 0/5] ptrace-vs-PREEMPT_RT and freezer rewrite Peter Zijlstra
` (2 preceding siblings ...)
2022-04-12 11:44 ` [PATCH 3/5] freezer: Have {,un}lock_system_sleep() save/restore flags Peter Zijlstra
@ 2022-04-12 11:44 ` Peter Zijlstra
2022-04-12 11:44 ` [PATCH 5/5] freezer,sched: Rewrite core freezer logic Peter Zijlstra
4 siblings, 0 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-12 11:44 UTC (permalink / raw)
To: rjw, oleg, mingo, vincent.guittot, dietmar.eggemann, rostedt,
mgorman, ebiederm, bigeasy, Will Deacon
Cc: linux-kernel, peterz, tj, linux-pm
handle_initrd() marks itself as PF_FREEZER_SKIP in order to ensure
that the UMH, which is going to freeze the system, doesn't
indefinitely wait for it's caller.
Rework things by adding UMH_FREEZABLE to indicate the completion is
freezable.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
include/linux/umh.h | 9 +++++----
init/do_mounts_initrd.c | 10 +---------
kernel/umh.c | 8 ++++++++
3 files changed, 14 insertions(+), 13 deletions(-)
--- a/include/linux/umh.h
+++ b/include/linux/umh.h
@@ -11,10 +11,11 @@
struct cred;
struct file;
-#define UMH_NO_WAIT 0 /* don't wait at all */
-#define UMH_WAIT_EXEC 1 /* wait for the exec, but not the process */
-#define UMH_WAIT_PROC 2 /* wait for the process to complete */
-#define UMH_KILLABLE 4 /* wait for EXEC/PROC killable */
+#define UMH_NO_WAIT 0x00 /* don't wait at all */
+#define UMH_WAIT_EXEC 0x01 /* wait for the exec, but not the process */
+#define UMH_WAIT_PROC 0x02 /* wait for the process to complete */
+#define UMH_KILLABLE 0x04 /* wait for EXEC/PROC killable */
+#define UMH_FREEZABLE 0x08 /* wait for EXEC/PROC freezable */
struct subprocess_info {
struct work_struct work;
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -79,19 +79,11 @@ static void __init handle_initrd(void)
init_mkdir("/old", 0700);
init_chdir("/old");
- /*
- * In case that a resume from disk is carried out by linuxrc or one of
- * its children, we need to tell the freezer not to wait for us.
- */
- current->flags |= PF_FREEZER_SKIP;
-
info = call_usermodehelper_setup("/linuxrc", argv, envp_init,
GFP_KERNEL, init_linuxrc, NULL, NULL);
if (!info)
return;
- call_usermodehelper_exec(info, UMH_WAIT_PROC);
-
- current->flags &= ~PF_FREEZER_SKIP;
+ call_usermodehelper_exec(info, UMH_WAIT_PROC|UMH_FREEZABLE);
/* move initrd to rootfs' /old */
init_mount("..", ".", NULL, MS_MOVE, NULL);
--- a/kernel/umh.c
+++ b/kernel/umh.c
@@ -28,6 +28,7 @@
#include <linux/async.h>
#include <linux/uaccess.h>
#include <linux/initrd.h>
+#include <linux/freezer.h>
#include <trace/events/module.h>
@@ -436,6 +437,9 @@ int call_usermodehelper_exec(struct subp
if (wait == UMH_NO_WAIT) /* task has freed sub_info */
goto unlock;
+ if (wait & UMH_FREEZABLE)
+ freezer_do_not_count();
+
if (wait & UMH_KILLABLE) {
retval = wait_for_completion_killable(&done);
if (!retval)
@@ -448,6 +452,10 @@ int call_usermodehelper_exec(struct subp
}
wait_for_completion(&done);
+
+ if (wait & UMH_FREEZABLE)
+ freezer_count();
+
wait_done:
retval = sub_info->retval;
out:
^ permalink raw reply [flat|nested] 38+ messages in thread
* [PATCH 5/5] freezer,sched: Rewrite core freezer logic
2022-04-12 11:44 [PATCH 0/5] ptrace-vs-PREEMPT_RT and freezer rewrite Peter Zijlstra
` (3 preceding siblings ...)
2022-04-12 11:44 ` [PATCH 4/5] freezer,umh: Clean up freezer/initrd interaction Peter Zijlstra
@ 2022-04-12 11:44 ` Peter Zijlstra
4 siblings, 0 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-12 11:44 UTC (permalink / raw)
To: rjw, oleg, mingo, vincent.guittot, dietmar.eggemann, rostedt,
mgorman, ebiederm, bigeasy, Will Deacon
Cc: linux-kernel, peterz, tj, linux-pm
Rewrite the core freezer to behave better wrt thawing and be simpler
in general.
By replacing PF_FROZEN with TASK_FROZEN, a special block state, it is
ensured frozen tasks stay frozen until thawed and don't randomly wake
up early, as is currently possible.
As such, it does away with PF_FROZEN and PF_FREEZER_SKIP, freeing up
two PF_flags (yay).
Specifically; the current scheme works a little like:
freezer_do_not_count();
schedule();
freezer_count();
And either the task is blocked, or it lands in try_to_freezer()
through freezer_count(). Now, when it is blocked, the freezer
considers it frozen and continues.
However, on thawing, once pm_freezing is cleared, freezer_count()
stops working, and any random/spurious wakeup will let a task run
before its time.
That is, thawing tries to thaw things in explicit order; kernel
threads and workqueues before doing bringing SMP back before userspace
etc.. However due to the above mentioned races it is entirely possible
for userspace tasks to thaw (by accident) before SMP is back.
This can be a fatal problem in asymmetric ISA architectures (eg ARMv9)
where the userspace task requires a special CPU to run.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
drivers/android/binder.c | 4
drivers/media/pci/pt3/pt3.c | 4
fs/cifs/inode.c | 4
fs/cifs/transport.c | 5
fs/coredump.c | 5
fs/nfs/file.c | 3
fs/nfs/inode.c | 12 --
fs/nfs/nfs3proc.c | 3
fs/nfs/nfs4proc.c | 14 +-
fs/nfs/nfs4state.c | 3
fs/nfs/pnfs.c | 4
fs/xfs/xfs_trans_ail.c | 8 -
include/linux/completion.h | 1
include/linux/freezer.h | 244 +----------------------------------------
include/linux/sched.h | 41 +++---
include/linux/sunrpc/sched.h | 7 -
include/linux/wait.h | 40 +++++-
kernel/cgroup/legacy_freezer.c | 23 +--
kernel/exit.c | 4
kernel/fork.c | 5
kernel/freezer.c | 139 +++++++++++++++++------
kernel/futex/waitwake.c | 8 -
kernel/hung_task.c | 4
kernel/power/main.c | 6 -
kernel/power/process.c | 10 -
kernel/sched/completion.c | 9 +
kernel/sched/core.c | 19 ++-
kernel/signal.c | 14 +-
kernel/time/hrtimer.c | 4
kernel/umh.c | 20 +--
mm/khugepaged.c | 4
net/sunrpc/sched.c | 12 --
net/unix/af_unix.c | 8 -
33 files changed, 282 insertions(+), 409 deletions(-)
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -4034,10 +4034,9 @@ static int binder_wait_for_work(struct b
struct binder_proc *proc = thread->proc;
int ret = 0;
- freezer_do_not_count();
binder_inner_proc_lock(proc);
for (;;) {
- prepare_to_wait(&thread->wait, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_wait(&thread->wait, &wait, TASK_INTERRUPTIBLE|TASK_FREEZABLE);
if (binder_has_work_ilocked(thread, do_proc_work))
break;
if (do_proc_work)
@@ -4054,7 +4053,6 @@ static int binder_wait_for_work(struct b
}
finish_wait(&thread->wait, &wait);
binder_inner_proc_unlock(proc);
- freezer_count();
return ret;
}
--- a/drivers/media/pci/pt3/pt3.c
+++ b/drivers/media/pci/pt3/pt3.c
@@ -445,8 +445,8 @@ static int pt3_fetch_thread(void *data)
pt3_proc_dma(adap);
delay = ktime_set(0, PT3_FETCH_DELAY * NSEC_PER_MSEC);
- set_current_state(TASK_UNINTERRUPTIBLE);
- freezable_schedule_hrtimeout_range(&delay,
+ set_current_state(TASK_UNINTERRUPTIBLE|TASK_FREEZABLE);
+ schedule_hrtimeout_range(&delay,
PT3_FETCH_DELAY_DELTA * NSEC_PER_MSEC,
HRTIMER_MODE_REL);
}
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2286,7 +2286,7 @@ cifs_invalidate_mapping(struct inode *in
static int
cifs_wait_bit_killable(struct wait_bit_key *key, int mode)
{
- freezable_schedule_unsafe();
+ schedule();
if (signal_pending_state(mode, current))
return -ERESTARTSYS;
return 0;
@@ -2304,7 +2304,7 @@ cifs_revalidate_mapping(struct inode *in
return 0;
rc = wait_on_bit_lock_action(flags, CIFS_INO_LOCK, cifs_wait_bit_killable,
- TASK_KILLABLE);
+ TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
if (rc)
return rc;
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -760,8 +760,9 @@ wait_for_response(struct TCP_Server_Info
{
int error;
- error = wait_event_freezekillable_unsafe(server->response_q,
- midQ->mid_state != MID_REQUEST_SUBMITTED);
+ error = wait_event_state(server->response_q,
+ midQ->mid_state != MID_REQUEST_SUBMITTED,
+ (TASK_KILLABLE|TASK_FREEZABLE_UNSAFE));
if (error < 0)
return -ERESTARTSYS;
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -402,9 +402,8 @@ static int coredump_wait(int exit_code,
if (core_waiters > 0) {
struct core_thread *ptr;
- freezer_do_not_count();
- wait_for_completion(&core_state->startup);
- freezer_count();
+ wait_for_completion_state(&core_state->startup,
+ TASK_UNINTERRUPTIBLE|TASK_FREEZABLE);
/*
* Wait for all the threads to become inactive, so that
* all the thread context (extended register state, like
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -565,7 +565,8 @@ static vm_fault_t nfs_vm_page_mkwrite(st
}
wait_on_bit_action(&NFS_I(inode)->flags, NFS_INO_INVALIDATING,
- nfs_wait_bit_killable, TASK_KILLABLE);
+ nfs_wait_bit_killable,
+ TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
lock_page(page);
mapping = page_file_mapping(page);
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -72,18 +72,13 @@ nfs_fattr_to_ino_t(struct nfs_fattr *fat
return nfs_fileid_to_ino_t(fattr->fileid);
}
-static int nfs_wait_killable(int mode)
+int nfs_wait_bit_killable(struct wait_bit_key *key, int mode)
{
- freezable_schedule_unsafe();
+ schedule();
if (signal_pending_state(mode, current))
return -ERESTARTSYS;
return 0;
}
-
-int nfs_wait_bit_killable(struct wait_bit_key *key, int mode)
-{
- return nfs_wait_killable(mode);
-}
EXPORT_SYMBOL_GPL(nfs_wait_bit_killable);
/**
@@ -1332,7 +1327,8 @@ int nfs_clear_invalid_mapping(struct add
*/
for (;;) {
ret = wait_on_bit_action(bitlock, NFS_INO_INVALIDATING,
- nfs_wait_bit_killable, TASK_KILLABLE);
+ nfs_wait_bit_killable,
+ TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
if (ret)
goto out;
spin_lock(&inode->i_lock);
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -36,7 +36,8 @@ nfs3_rpc_wrapper(struct rpc_clnt *clnt,
res = rpc_call_sync(clnt, msg, flags);
if (res != -EJUKEBOX)
break;
- freezable_schedule_timeout_killable_unsafe(NFS_JUKEBOX_RETRY_TIME);
+ __set_current_state(TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
+ schedule_timeout(NFS_JUKEBOX_RETRY_TIME);
res = -ERESTARTSYS;
} while (!fatal_signal_pending(current));
return res;
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -408,8 +408,8 @@ static int nfs4_delay_killable(long *tim
{
might_sleep();
- freezable_schedule_timeout_killable_unsafe(
- nfs4_update_delay(timeout));
+ __set_current_state(TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
+ schedule_timeout(nfs4_update_delay(timeout));
if (!__fatal_signal_pending(current))
return 0;
return -EINTR;
@@ -419,7 +419,8 @@ static int nfs4_delay_interruptible(long
{
might_sleep();
- freezable_schedule_timeout_interruptible_unsafe(nfs4_update_delay(timeout));
+ __set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE_UNSAFE);
+ schedule_timeout(nfs4_update_delay(timeout));
if (!signal_pending(current))
return 0;
return __fatal_signal_pending(current) ? -EINTR :-ERESTARTSYS;
@@ -7363,7 +7364,8 @@ nfs4_retry_setlk_simple(struct nfs4_stat
status = nfs4_proc_setlk(state, cmd, request);
if ((status != -EAGAIN) || IS_SETLK(cmd))
break;
- freezable_schedule_timeout_interruptible(timeout);
+ __set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
+ schedule_timeout(timeout);
timeout *= 2;
timeout = min_t(unsigned long, NFS4_LOCK_MAXTIMEOUT, timeout);
status = -ERESTARTSYS;
@@ -7431,10 +7433,8 @@ nfs4_retry_setlk(struct nfs4_state *stat
break;
status = -ERESTARTSYS;
- freezer_do_not_count();
- wait_woken(&waiter.wait, TASK_INTERRUPTIBLE,
+ wait_woken(&waiter.wait, TASK_INTERRUPTIBLE|TASK_FREEZABLE,
NFS4_LOCK_MAXTIMEOUT);
- freezer_count();
} while (!signalled());
remove_wait_queue(q, &waiter.wait);
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1314,7 +1314,8 @@ int nfs4_wait_clnt_recover(struct nfs_cl
refcount_inc(&clp->cl_count);
res = wait_on_bit_action(&clp->cl_state, NFS4CLNT_MANAGER_RUNNING,
- nfs_wait_bit_killable, TASK_KILLABLE);
+ nfs_wait_bit_killable,
+ TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
if (res)
goto out;
if (clp->cl_cons_state < 0)
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1907,7 +1907,7 @@ static int pnfs_prepare_to_retry_layoutg
pnfs_layoutcommit_inode(lo->plh_inode, false);
return wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN,
nfs_wait_bit_killable,
- TASK_KILLABLE);
+ TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
}
static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo)
@@ -3182,7 +3182,7 @@ pnfs_layoutcommit_inode(struct inode *in
status = wait_on_bit_lock_action(&nfsi->flags,
NFS_INO_LAYOUTCOMMITTING,
nfs_wait_bit_killable,
- TASK_KILLABLE);
+ TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
if (status)
goto out;
}
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -602,9 +602,9 @@ xfsaild(
while (1) {
if (tout && tout <= 20)
- set_current_state(TASK_KILLABLE);
+ set_current_state(TASK_KILLABLE|TASK_FREEZABLE);
else
- set_current_state(TASK_INTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
/*
* Check kthread_should_stop() after we set the task state to
@@ -653,14 +653,14 @@ xfsaild(
ailp->ail_target == ailp->ail_target_prev &&
list_empty(&ailp->ail_buf_list)) {
spin_unlock(&ailp->ail_lock);
- freezable_schedule();
+ schedule();
tout = 0;
continue;
}
spin_unlock(&ailp->ail_lock);
if (tout)
- freezable_schedule_timeout(msecs_to_jiffies(tout));
+ schedule_timeout(msecs_to_jiffies(tout));
__set_current_state(TASK_RUNNING);
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -103,6 +103,7 @@ extern void wait_for_completion(struct c
extern void wait_for_completion_io(struct completion *);
extern int wait_for_completion_interruptible(struct completion *x);
extern int wait_for_completion_killable(struct completion *x);
+extern int wait_for_completion_state(struct completion *x, unsigned int state);
extern unsigned long wait_for_completion_timeout(struct completion *x,
unsigned long timeout);
extern unsigned long wait_for_completion_io_timeout(struct completion *x,
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -8,9 +8,11 @@
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/atomic.h>
+#include <linux/jump_label.h>
#ifdef CONFIG_FREEZER
-extern atomic_t system_freezing_cnt; /* nr of freezing conds in effect */
+DECLARE_STATIC_KEY_FALSE(freezer_active);
+
extern bool pm_freezing; /* PM freezing in effect */
extern bool pm_nosig_freezing; /* PM nosig freezing in effect */
@@ -22,10 +24,7 @@ extern unsigned int freeze_timeout_msecs
/*
* Check if a process has been frozen
*/
-static inline bool frozen(struct task_struct *p)
-{
- return p->flags & PF_FROZEN;
-}
+extern bool frozen(struct task_struct *p);
extern bool freezing_slow_path(struct task_struct *p);
@@ -34,9 +33,10 @@ extern bool freezing_slow_path(struct ta
*/
static inline bool freezing(struct task_struct *p)
{
- if (likely(!atomic_read(&system_freezing_cnt)))
- return false;
- return freezing_slow_path(p);
+ if (static_branch_unlikely(&freezer_active))
+ return freezing_slow_path(p);
+
+ return false;
}
/* Takes and releases task alloc lock using task_lock() */
@@ -48,23 +48,14 @@ extern int freeze_kernel_threads(void);
extern void thaw_processes(void);
extern void thaw_kernel_threads(void);
-/*
- * DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION
- * If try_to_freeze causes a lockdep warning it means the caller may deadlock
- */
-static inline bool try_to_freeze_unsafe(void)
+static inline bool try_to_freeze(void)
{
might_sleep();
if (likely(!freezing(current)))
return false;
- return __refrigerator(false);
-}
-
-static inline bool try_to_freeze(void)
-{
if (!(current->flags & PF_NOFREEZE))
debug_check_no_locks_held();
- return try_to_freeze_unsafe();
+ return __refrigerator(false);
}
extern bool freeze_task(struct task_struct *p);
@@ -79,195 +70,6 @@ static inline bool cgroup_freezing(struc
}
#endif /* !CONFIG_CGROUP_FREEZER */
-/*
- * The PF_FREEZER_SKIP flag should be set by a vfork parent right before it
- * calls wait_for_completion(&vfork) and reset right after it returns from this
- * function. Next, the parent should call try_to_freeze() to freeze itself
- * appropriately in case the child has exited before the freezing of tasks is
- * complete. However, we don't want kernel threads to be frozen in unexpected
- * places, so we allow them to block freeze_processes() instead or to set
- * PF_NOFREEZE if needed. Fortunately, in the ____call_usermodehelper() case the
- * parent won't really block freeze_processes(), since ____call_usermodehelper()
- * (the child) does a little before exec/exit and it can't be frozen before
- * waking up the parent.
- */
-
-
-/**
- * freezer_do_not_count - tell freezer to ignore %current
- *
- * Tell freezers to ignore the current task when determining whether the
- * target frozen state is reached. IOW, the current task will be
- * considered frozen enough by freezers.
- *
- * The caller shouldn't do anything which isn't allowed for a frozen task
- * until freezer_cont() is called. Usually, freezer[_do_not]_count() pair
- * wrap a scheduling operation and nothing much else.
- */
-static inline void freezer_do_not_count(void)
-{
- current->flags |= PF_FREEZER_SKIP;
-}
-
-/**
- * freezer_count - tell freezer to stop ignoring %current
- *
- * Undo freezer_do_not_count(). It tells freezers that %current should be
- * considered again and tries to freeze if freezing condition is already in
- * effect.
- */
-static inline void freezer_count(void)
-{
- current->flags &= ~PF_FREEZER_SKIP;
- /*
- * If freezing is in progress, the following paired with smp_mb()
- * in freezer_should_skip() ensures that either we see %true
- * freezing() or freezer_should_skip() sees !PF_FREEZER_SKIP.
- */
- smp_mb();
- try_to_freeze();
-}
-
-/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */
-static inline void freezer_count_unsafe(void)
-{
- current->flags &= ~PF_FREEZER_SKIP;
- smp_mb();
- try_to_freeze_unsafe();
-}
-
-/**
- * freezer_should_skip - whether to skip a task when determining frozen
- * state is reached
- * @p: task in quesion
- *
- * This function is used by freezers after establishing %true freezing() to
- * test whether a task should be skipped when determining the target frozen
- * state is reached. IOW, if this function returns %true, @p is considered
- * frozen enough.
- */
-static inline bool freezer_should_skip(struct task_struct *p)
-{
- /*
- * The following smp_mb() paired with the one in freezer_count()
- * ensures that either freezer_count() sees %true freezing() or we
- * see cleared %PF_FREEZER_SKIP and return %false. This makes it
- * impossible for a task to slip frozen state testing after
- * clearing %PF_FREEZER_SKIP.
- */
- smp_mb();
- return p->flags & PF_FREEZER_SKIP;
-}
-
-/*
- * These functions are intended to be used whenever you want allow a sleeping
- * task to be frozen. Note that neither return any clear indication of
- * whether a freeze event happened while in this function.
- */
-
-/* Like schedule(), but should not block the freezer. */
-static inline void freezable_schedule(void)
-{
- freezer_do_not_count();
- schedule();
- freezer_count();
-}
-
-/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */
-static inline void freezable_schedule_unsafe(void)
-{
- freezer_do_not_count();
- schedule();
- freezer_count_unsafe();
-}
-
-/*
- * Like schedule_timeout(), but should not block the freezer. Do not
- * call this with locks held.
- */
-static inline long freezable_schedule_timeout(long timeout)
-{
- long __retval;
- freezer_do_not_count();
- __retval = schedule_timeout(timeout);
- freezer_count();
- return __retval;
-}
-
-/*
- * Like schedule_timeout_interruptible(), but should not block the freezer. Do not
- * call this with locks held.
- */
-static inline long freezable_schedule_timeout_interruptible(long timeout)
-{
- long __retval;
- freezer_do_not_count();
- __retval = schedule_timeout_interruptible(timeout);
- freezer_count();
- return __retval;
-}
-
-/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */
-static inline long freezable_schedule_timeout_interruptible_unsafe(long timeout)
-{
- long __retval;
-
- freezer_do_not_count();
- __retval = schedule_timeout_interruptible(timeout);
- freezer_count_unsafe();
- return __retval;
-}
-
-/* Like schedule_timeout_killable(), but should not block the freezer. */
-static inline long freezable_schedule_timeout_killable(long timeout)
-{
- long __retval;
- freezer_do_not_count();
- __retval = schedule_timeout_killable(timeout);
- freezer_count();
- return __retval;
-}
-
-/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */
-static inline long freezable_schedule_timeout_killable_unsafe(long timeout)
-{
- long __retval;
- freezer_do_not_count();
- __retval = schedule_timeout_killable(timeout);
- freezer_count_unsafe();
- return __retval;
-}
-
-/*
- * Like schedule_hrtimeout_range(), but should not block the freezer. Do not
- * call this with locks held.
- */
-static inline int freezable_schedule_hrtimeout_range(ktime_t *expires,
- u64 delta, const enum hrtimer_mode mode)
-{
- int __retval;
- freezer_do_not_count();
- __retval = schedule_hrtimeout_range(expires, delta, mode);
- freezer_count();
- return __retval;
-}
-
-/*
- * Freezer-friendly wrappers around wait_event_interruptible(),
- * wait_event_killable() and wait_event_interruptible_timeout(), originally
- * defined in <linux/wait.h>
- */
-
-/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */
-#define wait_event_freezekillable_unsafe(wq, condition) \
-({ \
- int __retval; \
- freezer_do_not_count(); \
- __retval = wait_event_killable(wq, (condition)); \
- freezer_count_unsafe(); \
- __retval; \
-})
-
#else /* !CONFIG_FREEZER */
static inline bool frozen(struct task_struct *p) { return false; }
static inline bool freezing(struct task_struct *p) { return false; }
@@ -281,35 +83,9 @@ static inline void thaw_kernel_threads(v
static inline bool try_to_freeze(void) { return false; }
-static inline void freezer_do_not_count(void) {}
static inline void freezer_count(void) {}
-static inline int freezer_should_skip(struct task_struct *p) { return 0; }
static inline void set_freezable(void) {}
-#define freezable_schedule() schedule()
-
-#define freezable_schedule_unsafe() schedule()
-
-#define freezable_schedule_timeout(timeout) schedule_timeout(timeout)
-
-#define freezable_schedule_timeout_interruptible(timeout) \
- schedule_timeout_interruptible(timeout)
-
-#define freezable_schedule_timeout_interruptible_unsafe(timeout) \
- schedule_timeout_interruptible(timeout)
-
-#define freezable_schedule_timeout_killable(timeout) \
- schedule_timeout_killable(timeout)
-
-#define freezable_schedule_timeout_killable_unsafe(timeout) \
- schedule_timeout_killable(timeout)
-
-#define freezable_schedule_hrtimeout_range(expires, delta, mode) \
- schedule_hrtimeout_range(expires, delta, mode)
-
-#define wait_event_freezekillable_unsafe(wq, condition) \
- wait_event_killable(wq, condition)
-
#endif /* !CONFIG_FREEZER */
#endif /* FREEZER_H_INCLUDED */
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -80,25 +80,32 @@ struct task_group;
*/
/* Used in tsk->state: */
-#define TASK_RUNNING 0x0000
-#define TASK_INTERRUPTIBLE 0x0001
-#define TASK_UNINTERRUPTIBLE 0x0002
-#define __TASK_STOPPED 0x0004
-#define __TASK_TRACED 0x0008
+#define TASK_RUNNING 0x000000
+#define TASK_INTERRUPTIBLE 0x000001
+#define TASK_UNINTERRUPTIBLE 0x000002
+#define __TASK_STOPPED 0x000004
+#define __TASK_TRACED 0x000008
/* Used in tsk->exit_state: */
-#define EXIT_DEAD 0x0010
-#define EXIT_ZOMBIE 0x0020
+#define EXIT_DEAD 0x000010
+#define EXIT_ZOMBIE 0x000020
#define EXIT_TRACE (EXIT_ZOMBIE | EXIT_DEAD)
/* Used in tsk->state again: */
-#define TASK_PARKED 0x0040
-#define TASK_DEAD 0x0080
-#define TASK_WAKEKILL 0x0100
-#define TASK_WAKING 0x0200
-#define TASK_NOLOAD 0x0400
-#define TASK_NEW 0x0800
-/* RT specific auxilliary flag to mark RT lock waiters */
-#define TASK_RTLOCK_WAIT 0x1000
-#define TASK_STATE_MAX 0x2000
+#define TASK_PARKED 0x000040
+#define TASK_DEAD 0x000080
+#define TASK_WAKEKILL 0x000100
+#define TASK_WAKING 0x000200
+#define TASK_NOLOAD 0x000400
+#define TASK_NEW 0x000800
+#define TASK_FREEZABLE 0x001000
+#define __TASK_FREEZABLE_UNSAFE (0x002000 * IS_ENABLED(CONFIG_LOCKDEP))
+#define TASK_FROZEN 0x004000
+#define TASK_RTLOCK_WAIT 0x008000
+#define TASK_STATE_MAX 0x010000
+
+/*
+ * DO NOT ADD ANY NEW USERS !
+ */
+#define TASK_FREEZABLE_UNSAFE (TASK_FREEZABLE | __TASK_FREEZABLE_UNSAFE)
/* Convenience macros for the sake of set_current_state: */
#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
@@ -1698,7 +1705,6 @@ extern struct pid *cad_pid;
#define PF_NPROC_EXCEEDED 0x00001000 /* set_user() noticed that RLIMIT_NPROC was exceeded */
#define PF_USED_MATH 0x00002000 /* If unset the fpu must be initialized before use */
#define PF_NOFREEZE 0x00008000 /* This thread should not be frozen */
-#define PF_FROZEN 0x00010000 /* Frozen for system suspend */
#define PF_KSWAPD 0x00020000 /* I am kswapd */
#define PF_MEMALLOC_NOFS 0x00040000 /* All allocation requests will inherit GFP_NOFS */
#define PF_MEMALLOC_NOIO 0x00080000 /* All allocation requests will inherit GFP_NOIO */
@@ -1709,7 +1715,6 @@ extern struct pid *cad_pid;
#define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle with cpus_mask */
#define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */
#define PF_MEMALLOC_PIN 0x10000000 /* Allocation context constrained to zones which allow long term pinning. */
-#define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezable */
#define PF_SUSPEND_TASK 0x80000000 /* This thread called freeze_processes() and should not be frozen */
/*
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -252,7 +252,7 @@ int rpc_malloc(struct rpc_task *);
void rpc_free(struct rpc_task *);
int rpciod_up(void);
void rpciod_down(void);
-int __rpc_wait_for_completion_task(struct rpc_task *task, wait_bit_action_f *);
+int rpc_wait_for_completion_task(struct rpc_task *task);
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
struct net;
void rpc_show_tasks(struct net *);
@@ -264,11 +264,6 @@ extern struct workqueue_struct *xprtiod_
void rpc_prepare_task(struct rpc_task *task);
gfp_t rpc_task_gfp_mask(void);
-static inline int rpc_wait_for_completion_task(struct rpc_task *task)
-{
- return __rpc_wait_for_completion_task(task, NULL);
-}
-
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
static inline const char * rpc_qname(const struct rpc_wait_queue *q)
{
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -361,8 +361,8 @@ do { \
} while (0)
#define __wait_event_freezable(wq_head, condition) \
- ___wait_event(wq_head, condition, TASK_INTERRUPTIBLE, 0, 0, \
- freezable_schedule())
+ ___wait_event(wq_head, condition, (TASK_INTERRUPTIBLE|TASK_FREEZABLE), \
+ 0, 0, schedule())
/**
* wait_event_freezable - sleep (or freeze) until a condition gets true
@@ -420,8 +420,8 @@ do { \
#define __wait_event_freezable_timeout(wq_head, condition, timeout) \
___wait_event(wq_head, ___wait_cond_timeout(condition), \
- TASK_INTERRUPTIBLE, 0, timeout, \
- __ret = freezable_schedule_timeout(__ret))
+ (TASK_INTERRUPTIBLE|TASK_FREEZABLE), 0, timeout, \
+ __ret = schedule_timeout(__ret))
/*
* like wait_event_timeout() -- except it uses TASK_INTERRUPTIBLE to avoid
@@ -641,8 +641,8 @@ do { \
#define __wait_event_freezable_exclusive(wq, condition) \
- ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 1, 0, \
- freezable_schedule())
+ ___wait_event(wq, condition, (TASK_INTERRUPTIBLE|TASK_FREEZABLE), 1, 0,\
+ schedule())
#define wait_event_freezable_exclusive(wq, condition) \
({ \
@@ -931,6 +931,34 @@ extern int do_wait_intr_irq(wait_queue_h
__ret; \
})
+#define __wait_event_state(wq, condition, state) \
+ ___wait_event(wq, condition, state, 0, 0, schedule())
+
+/**
+ * wait_event_state - sleep until a condition gets true
+ * @wq_head: the waitqueue to wait on
+ * @condition: a C expression for the event to wait for
+ * @state: state to sleep in
+ *
+ * The process is put to sleep (@state) until the @condition evaluates to true
+ * or a signal is received. The @condition is checked each time the waitqueue
+ * @wq_head is woken up.
+ *
+ * wake_up() has to be called after changing any variable that could
+ * change the result of the wait condition.
+ *
+ * The function will return -ERESTARTSYS if it was interrupted by a
+ * signal and 0 if @condition evaluated to true.
+ */
+#define wait_event_state(wq_head, condition, state) \
+({ \
+ int __ret = 0; \
+ might_sleep(); \
+ if (!(condition)) \
+ __ret = __wait_event_state(wq_head, condition, state); \
+ __ret; \
+})
+
#define __wait_event_killable_timeout(wq_head, condition, timeout) \
___wait_event(wq_head, ___wait_cond_timeout(condition), \
TASK_KILLABLE, 0, timeout, \
--- a/kernel/cgroup/legacy_freezer.c
+++ b/kernel/cgroup/legacy_freezer.c
@@ -113,7 +113,7 @@ static int freezer_css_online(struct cgr
if (parent && (parent->state & CGROUP_FREEZING)) {
freezer->state |= CGROUP_FREEZING_PARENT | CGROUP_FROZEN;
- atomic_inc(&system_freezing_cnt);
+ static_branch_inc(&freezer_active);
}
mutex_unlock(&freezer_mutex);
@@ -134,7 +134,7 @@ static void freezer_css_offline(struct c
mutex_lock(&freezer_mutex);
if (freezer->state & CGROUP_FREEZING)
- atomic_dec(&system_freezing_cnt);
+ static_branch_dec(&freezer_active);
freezer->state = 0;
@@ -179,6 +179,7 @@ static void freezer_attach(struct cgroup
__thaw_task(task);
} else {
freeze_task(task);
+
/* clear FROZEN and propagate upwards */
while (freezer && (freezer->state & CGROUP_FROZEN)) {
freezer->state &= ~CGROUP_FROZEN;
@@ -271,16 +272,8 @@ static void update_if_frozen(struct cgro
css_task_iter_start(css, 0, &it);
while ((task = css_task_iter_next(&it))) {
- if (freezing(task)) {
- /*
- * freezer_should_skip() indicates that the task
- * should be skipped when determining freezing
- * completion. Consider it frozen in addition to
- * the usual frozen condition.
- */
- if (!frozen(task) && !freezer_should_skip(task))
- goto out_iter_end;
- }
+ if (freezing(task) && !frozen(task))
+ goto out_iter_end;
}
freezer->state |= CGROUP_FROZEN;
@@ -357,7 +350,7 @@ static void freezer_apply_state(struct f
if (freeze) {
if (!(freezer->state & CGROUP_FREEZING))
- atomic_inc(&system_freezing_cnt);
+ static_branch_inc(&freezer_active);
freezer->state |= state;
freeze_cgroup(freezer);
} else {
@@ -366,9 +359,9 @@ static void freezer_apply_state(struct f
freezer->state &= ~state;
if (!(freezer->state & CGROUP_FREEZING)) {
- if (was_freezing)
- atomic_dec(&system_freezing_cnt);
freezer->state &= ~CGROUP_FROZEN;
+ if (was_freezing)
+ static_branch_dec(&freezer_active);
unfreeze_cgroup(freezer);
}
}
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -374,10 +374,10 @@ static void coredump_task_exit(struct ta
complete(&core_state->startup);
for (;;) {
- set_current_state(TASK_UNINTERRUPTIBLE);
+ set_current_state(TASK_UNINTERRUPTIBLE|TASK_FREEZABLE);
if (!self.task) /* see coredump_finish() */
break;
- freezable_schedule();
+ schedule();
}
__set_current_state(TASK_RUNNING);
}
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1417,13 +1417,12 @@ static void complete_vfork_done(struct t
static int wait_for_vfork_done(struct task_struct *child,
struct completion *vfork)
{
+ unsigned int state = TASK_UNINTERRUPTIBLE|TASK_KILLABLE|TASK_FREEZABLE;
int killed;
- freezer_do_not_count();
cgroup_enter_frozen();
- killed = wait_for_completion_killable(vfork);
+ killed = wait_for_completion_state(vfork, state);
cgroup_leave_frozen(false);
- freezer_count();
if (killed) {
task_lock(child);
--- a/kernel/freezer.c
+++ b/kernel/freezer.c
@@ -13,10 +13,11 @@
#include <linux/kthread.h>
/* total number of freezing conditions in effect */
-atomic_t system_freezing_cnt = ATOMIC_INIT(0);
-EXPORT_SYMBOL(system_freezing_cnt);
+DEFINE_STATIC_KEY_FALSE(freezer_active);
+EXPORT_SYMBOL(freezer_active);
-/* indicate whether PM freezing is in effect, protected by
+/*
+ * indicate whether PM freezing is in effect, protected by
* system_transition_mutex
*/
bool pm_freezing;
@@ -29,7 +30,7 @@ static DEFINE_SPINLOCK(freezer_lock);
* freezing_slow_path - slow path for testing whether a task needs to be frozen
* @p: task to be tested
*
- * This function is called by freezing() if system_freezing_cnt isn't zero
+ * This function is called by freezing() if freezer_active isn't zero
* and tests whether @p needs to enter and stay in frozen state. Can be
* called under any context. The freezers are responsible for ensuring the
* target tasks see the updated state.
@@ -52,41 +53,40 @@ bool freezing_slow_path(struct task_stru
}
EXPORT_SYMBOL(freezing_slow_path);
+bool frozen(struct task_struct *p)
+{
+ return READ_ONCE(p->__state) & TASK_FROZEN;
+}
+
/* Refrigerator is place where frozen processes are stored :-). */
bool __refrigerator(bool check_kthr_stop)
{
- /* Hmm, should we be allowed to suspend when there are realtime
- processes around? */
+ unsigned int state = get_current_state();
bool was_frozen = false;
- unsigned int save = get_current_state();
pr_debug("%s entered refrigerator\n", current->comm);
+ WARN_ON_ONCE(state && !(state & TASK_NORMAL));
+
for (;;) {
- set_current_state(TASK_UNINTERRUPTIBLE);
+ bool freeze;
+
+ set_current_state(TASK_FROZEN);
spin_lock_irq(&freezer_lock);
- current->flags |= PF_FROZEN;
- if (!freezing(current) ||
- (check_kthr_stop && kthread_should_stop()))
- current->flags &= ~PF_FROZEN;
+ freeze = freezing(current) && !(check_kthr_stop && kthread_should_stop());
spin_unlock_irq(&freezer_lock);
- if (!(current->flags & PF_FROZEN))
+ if (!freeze)
break;
+
was_frozen = true;
schedule();
}
+ __set_current_state(TASK_RUNNING);
pr_debug("%s left refrigerator\n", current->comm);
- /*
- * Restore saved task state before returning. The mb'd version
- * needs to be used; otherwise, it might silently break
- * synchronization which depends on ordered task state change.
- */
- set_current_state(save);
-
return was_frozen;
}
EXPORT_SYMBOL(__refrigerator);
@@ -101,6 +101,41 @@ static void fake_signal_wake_up(struct t
}
}
+static int __set_task_frozen(struct task_struct *p, void *arg)
+{
+ unsigned int state = READ_ONCE(p->__state);
+
+ if (p->on_rq)
+ return 0;
+
+ if (!(state & (TASK_FREEZABLE | __TASK_STOPPED | __TASK_TRACED)))
+ return 0;
+
+ /*
+ * Only TASK_NORMAL can be augmented with TASK_FREEZABLE, since they
+ * can suffer spurious wakeups.
+ */
+ if (state & TASK_FREEZABLE)
+ WARN_ON_ONCE(!(state & TASK_NORMAL));
+
+#ifdef CONFIG_LOCKDEP
+ /*
+ * It's dangerous to freeze with locks held; there be dragons there.
+ */
+ if (!(state & __TASK_FREEZABLE_UNSAFE))
+ WARN_ON_ONCE(debug_locks && p->lockdep_depth);
+#endif
+
+ WRITE_ONCE(p->__state, TASK_FROZEN);
+ return TASK_FROZEN;
+}
+
+static bool __freeze_task(struct task_struct *p)
+{
+ /* TASK_FREEZABLE|TASK_STOPPED|TASK_TRACED -> TASK_FROZEN */
+ return task_call_func(p, __set_task_frozen, NULL);
+}
+
/**
* freeze_task - send a freeze request to given task
* @p: task to send the request to
@@ -116,20 +151,8 @@ bool freeze_task(struct task_struct *p)
{
unsigned long flags;
- /*
- * This check can race with freezer_do_not_count, but worst case that
- * will result in an extra wakeup being sent to the task. It does not
- * race with freezer_count(), the barriers in freezer_count() and
- * freezer_should_skip() ensure that either freezer_count() sees
- * freezing == true in try_to_freeze() and freezes, or
- * freezer_should_skip() sees !PF_FREEZE_SKIP and freezes the task
- * normally.
- */
- if (freezer_should_skip(p))
- return false;
-
spin_lock_irqsave(&freezer_lock, flags);
- if (!freezing(p) || frozen(p)) {
+ if (!freezing(p) || frozen(p) || __freeze_task(p)) {
spin_unlock_irqrestore(&freezer_lock, flags);
return false;
}
@@ -137,19 +160,61 @@ bool freeze_task(struct task_struct *p)
if (!(p->flags & PF_KTHREAD))
fake_signal_wake_up(p);
else
- wake_up_state(p, TASK_INTERRUPTIBLE);
+ wake_up_state(p, TASK_NORMAL);
spin_unlock_irqrestore(&freezer_lock, flags);
return true;
}
+/*
+ * The special task states (TASK_STOPPED, TASK_TRACED) keep their canonical
+ * state in p->jobctl. If either of them got a wakeup that was missed because
+ * TASK_FROZEN, then their canonical state reflects that and the below will
+ * refuse to restore the special state and instead issue the wakeup.
+ */
+static int __set_task_special(struct task_struct *p, void *arg)
+{
+ unsigned int state = 0;
+
+ if (p->jobctl & JOBCTL_TRACED) {
+ state = __TASK_TRACED;
+
+ if (!(p->jobctl & JOBCTL_TRACED_FROZEN)) {
+ state |= TASK_WAKEKILL;
+ if (__fatal_signal_pending(p))
+ state = 0;
+ }
+
+ } else if ((p->jobctl & JOBCTL_STOPPED) &&
+ !__fatal_signal_pending(p)) {
+
+ state = TASK_STOPPED;
+ }
+
+ if (state)
+ WRITE_ONCE(p->__state, state);
+
+ return state;
+}
+
void __thaw_task(struct task_struct *p)
{
- unsigned long flags;
+ unsigned long flags, flags2;
spin_lock_irqsave(&freezer_lock, flags);
- if (frozen(p))
- wake_up_process(p);
+ if (WARN_ON_ONCE(freezing(p)))
+ goto unlock;
+
+ if (lock_task_sighand(p, &flags2)) {
+ /* TASK_FROZEN -> TASK_{STOPPED,TRACED} */
+ bool ret = task_call_func(p, __set_task_special, NULL);
+ unlock_task_sighand(p, &flags2);
+ if (ret)
+ goto unlock;
+ }
+
+ wake_up_state(p, TASK_FROZEN);
+unlock:
spin_unlock_irqrestore(&freezer_lock, flags);
}
--- a/kernel/futex/waitwake.c
+++ b/kernel/futex/waitwake.c
@@ -334,7 +334,7 @@ void futex_wait_queue(struct futex_hash_
* futex_queue() calls spin_unlock() upon completion, both serializing
* access to the hash list and forcing another memory barrier.
*/
- set_current_state(TASK_INTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
futex_queue(q, hb);
/* Arm the timer */
@@ -352,7 +352,7 @@ void futex_wait_queue(struct futex_hash_
* is no timeout, or if it has yet to expire.
*/
if (!timeout || timeout->task)
- freezable_schedule();
+ schedule();
}
__set_current_state(TASK_RUNNING);
}
@@ -430,7 +430,7 @@ static int futex_wait_multiple_setup(str
return ret;
}
- set_current_state(TASK_INTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
for (i = 0; i < count; i++) {
u32 __user *uaddr = (u32 __user *)(unsigned long)vs[i].w.uaddr;
@@ -504,7 +504,7 @@ static void futex_sleep_multiple(struct
return;
}
- freezable_schedule();
+ schedule();
}
/**
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -95,8 +95,8 @@ static void check_hung_task(struct task_
* Ensure the task is not frozen.
* Also, skip vfork and any other user process that freezer should skip.
*/
- if (unlikely(t->flags & (PF_FROZEN | PF_FREEZER_SKIP)))
- return;
+ if (unlikely(READ_ONCE(t->__state) & (TASK_FREEZABLE | TASK_FROZEN)))
+ return;
/*
* When a freshly created task is scheduled once, changes its state to
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -24,7 +24,7 @@
unsigned int lock_system_sleep(void)
{
unsigned int flags = current->flags;
- current->flags |= PF_FREEZER_SKIP;
+ current->flags |= PF_NOFREEZE;
mutex_lock(&system_transition_mutex);
return flags;
}
@@ -48,8 +48,8 @@ void unlock_system_sleep(unsigned int fl
* Which means, if we use try_to_freeze() here, it would make them
* enter the refrigerator, thus causing hibernation to lockup.
*/
- if (!(flags & PF_FREEZER_SKIP))
- current->flags &= ~PF_FREEZER_SKIP;
+ if (!(flags & PF_NOFREEZE))
+ current->flags &= ~PF_NOFREEZE;
mutex_unlock(&system_transition_mutex);
}
EXPORT_SYMBOL_GPL(unlock_system_sleep);
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -53,8 +53,7 @@ static int try_to_freeze_tasks(bool user
if (p == current || !freeze_task(p))
continue;
- if (!freezer_should_skip(p))
- todo++;
+ todo++;
}
read_unlock(&tasklist_lock);
@@ -99,8 +98,7 @@ static int try_to_freeze_tasks(bool user
if (!wakeup || pm_debug_messages_on) {
read_lock(&tasklist_lock);
for_each_process_thread(g, p) {
- if (p != current && !freezer_should_skip(p)
- && freezing(p) && !frozen(p))
+ if (p != current && freezing(p) && !frozen(p))
sched_show_task(p);
}
read_unlock(&tasklist_lock);
@@ -132,7 +130,7 @@ int freeze_processes(void)
current->flags |= PF_SUSPEND_TASK;
if (!pm_freezing)
- atomic_inc(&system_freezing_cnt);
+ static_branch_inc(&freezer_active);
pm_wakeup_clear(0);
pr_info("Freezing user space processes ... ");
@@ -193,7 +191,7 @@ void thaw_processes(void)
trace_suspend_resume(TPS("thaw_processes"), 0, true);
if (pm_freezing)
- atomic_dec(&system_freezing_cnt);
+ static_branch_dec(&freezer_active);
pm_freezing = false;
pm_nosig_freezing = false;
--- a/kernel/sched/completion.c
+++ b/kernel/sched/completion.c
@@ -247,6 +247,15 @@ int __sched wait_for_completion_killable
}
EXPORT_SYMBOL(wait_for_completion_killable);
+int __sched wait_for_completion_state(struct completion *x, unsigned int state)
+{
+ long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, state);
+ if (t == -ERESTARTSYS)
+ return t;
+ return 0;
+}
+EXPORT_SYMBOL(wait_for_completion_state);
+
/**
* wait_for_completion_killable_timeout: - waits for completion of a task (w/(to,killable))
* @x: holds the state of this particular completion
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3260,6 +3260,19 @@ int migrate_swap(struct task_struct *cur
}
#endif /* CONFIG_NUMA_BALANCING */
+static inline bool __wti_match(struct task_struct *p, unsigned int match_state)
+{
+ unsigned int state = READ_ONCE(p->__state);
+
+ if ((match_state & TASK_FREEZABLE) && state == TASK_FROZEN)
+ return true;
+
+ if (state == (match_state & ~TASK_FREEZABLE))
+ return true;
+
+ return false;
+}
+
/*
* wait_task_inactive - wait for a thread to unschedule.
*
@@ -3304,7 +3317,7 @@ unsigned long wait_task_inactive(struct
* is actually now running somewhere else!
*/
while (task_running(rq, p)) {
- if (match_state && unlikely(READ_ONCE(p->__state) != match_state))
+ if (match_state && !__wti_match(p, match_state))
return 0;
cpu_relax();
}
@@ -3319,7 +3332,7 @@ unsigned long wait_task_inactive(struct
running = task_running(rq, p);
queued = task_on_rq_queued(p);
ncsw = 0;
- if (!match_state || READ_ONCE(p->__state) == match_state)
+ if (!match_state || __wti_match(p, match_state))
ncsw = p->nvcsw | LONG_MIN; /* sets MSB */
task_rq_unlock(rq, p, &rf);
@@ -6320,7 +6333,7 @@ static void __sched notrace __schedule(u
prev->sched_contributes_to_load =
(prev_state & TASK_UNINTERRUPTIBLE) &&
!(prev_state & TASK_NOLOAD) &&
- !(prev->flags & PF_FROZEN);
+ !(prev_state & TASK_FROZEN);
if (prev->sched_contributes_to_load)
rq->nr_uninterruptible++;
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2292,7 +2292,7 @@ static int ptrace_stop(int exit_code, in
read_unlock(&tasklist_lock);
cgroup_enter_frozen();
preempt_enable_no_resched();
- freezable_schedule();
+ schedule();
cgroup_leave_frozen(true);
} else {
/*
@@ -2483,7 +2483,7 @@ static bool do_signal_stop(int signr)
/* Now we don't run again until woken by SIGCONT or SIGKILL */
cgroup_enter_frozen();
- freezable_schedule();
+ schedule();
return true;
} else {
/*
@@ -2558,11 +2558,11 @@ static void do_freezer_trap(void)
* immediately (if there is a non-fatal signal pending), and
* put the task into sleep.
*/
- __set_current_state(TASK_INTERRUPTIBLE);
+ __set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
clear_thread_flag(TIF_SIGPENDING);
spin_unlock_irq(¤t->sighand->siglock);
cgroup_enter_frozen();
- freezable_schedule();
+ schedule();
}
static int ptrace_signal(int signr, kernel_siginfo_t *info, enum pid_type type)
@@ -3608,9 +3608,9 @@ static int do_sigtimedwait(const sigset_
recalc_sigpending();
spin_unlock_irq(&tsk->sighand->siglock);
- __set_current_state(TASK_INTERRUPTIBLE);
- ret = freezable_schedule_hrtimeout_range(to, tsk->timer_slack_ns,
- HRTIMER_MODE_REL);
+ __set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
+ ret = schedule_hrtimeout_range(to, tsk->timer_slack_ns,
+ HRTIMER_MODE_REL);
spin_lock_irq(&tsk->sighand->siglock);
__set_task_blocked(tsk, &tsk->real_blocked);
sigemptyset(&tsk->real_blocked);
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -2037,11 +2037,11 @@ static int __sched do_nanosleep(struct h
struct restart_block *restart;
do {
- set_current_state(TASK_INTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
hrtimer_sleeper_start_expires(t, mode);
if (likely(t->task))
- freezable_schedule();
+ schedule();
hrtimer_cancel(&t->timer);
mode = HRTIMER_MODE_ABS;
--- a/kernel/umh.c
+++ b/kernel/umh.c
@@ -404,6 +404,7 @@ EXPORT_SYMBOL(call_usermodehelper_setup)
*/
int call_usermodehelper_exec(struct subprocess_info *sub_info, int wait)
{
+ unsigned int state = TASK_UNINTERRUPTIBLE;
DECLARE_COMPLETION_ONSTACK(done);
int retval = 0;
@@ -437,25 +438,22 @@ int call_usermodehelper_exec(struct subp
if (wait == UMH_NO_WAIT) /* task has freed sub_info */
goto unlock;
+ if (wait & UMH_KILLABLE)
+ state |= TASK_KILLABLE;
+
if (wait & UMH_FREEZABLE)
- freezer_do_not_count();
+ state |= TASK_FREEZABLE;
- if (wait & UMH_KILLABLE) {
- retval = wait_for_completion_killable(&done);
- if (!retval)
- goto wait_done;
+ retval = wait_for_completion_state(&done, state);
+ if (!retval)
+ goto wait_done;
+ if (wait & UMH_KILLABLE) {
/* umh_complete() will see NULL and free sub_info */
if (xchg(&sub_info->complete, NULL))
goto unlock;
- /* fallthrough, umh_complete() was already called */
}
- wait_for_completion(&done);
-
- if (wait & UMH_FREEZABLE)
- freezer_count();
-
wait_done:
retval = sub_info->retval;
out:
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -780,8 +780,8 @@ static void khugepaged_alloc_sleep(void)
DEFINE_WAIT(wait);
add_wait_queue(&khugepaged_wait, &wait);
- freezable_schedule_timeout_interruptible(
- msecs_to_jiffies(khugepaged_alloc_sleep_millisecs));
+ __set_current_state(TASK_INTERRUPTIBLE|TASK_FREEZABLE);
+ schedule_timeout(msecs_to_jiffies(khugepaged_alloc_sleep_millisecs));
remove_wait_queue(&khugepaged_wait, &wait);
}
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -268,7 +268,7 @@ EXPORT_SYMBOL_GPL(rpc_destroy_wait_queue
static int rpc_wait_bit_killable(struct wait_bit_key *key, int mode)
{
- freezable_schedule_unsafe();
+ schedule();
if (signal_pending_state(mode, current))
return -ERESTARTSYS;
return 0;
@@ -332,14 +332,12 @@ static int rpc_complete_task(struct rpc_
* to enforce taking of the wq->lock and hence avoid races with
* rpc_complete_task().
*/
-int __rpc_wait_for_completion_task(struct rpc_task *task, wait_bit_action_f *action)
+int rpc_wait_for_completion_task(struct rpc_task *task)
{
- if (action == NULL)
- action = rpc_wait_bit_killable;
return out_of_line_wait_on_bit(&task->tk_runstate, RPC_TASK_ACTIVE,
- action, TASK_KILLABLE);
+ rpc_wait_bit_killable, TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
}
-EXPORT_SYMBOL_GPL(__rpc_wait_for_completion_task);
+EXPORT_SYMBOL_GPL(rpc_wait_for_completion_task);
/*
* Make an RPC task runnable.
@@ -963,7 +961,7 @@ static void __rpc_execute(struct rpc_tas
trace_rpc_task_sync_sleep(task, task->tk_action);
status = out_of_line_wait_on_bit(&task->tk_runstate,
RPC_TASK_QUEUED, rpc_wait_bit_killable,
- TASK_KILLABLE);
+ TASK_KILLABLE|TASK_FREEZABLE);
if (status < 0) {
/*
* When a sync task receives a signal, it exits with
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2530,13 +2530,14 @@ static long unix_stream_data_wait(struct
struct sk_buff *last, unsigned int last_len,
bool freezable)
{
+ unsigned int state = TASK_INTERRUPTIBLE | freezable * TASK_FREEZABLE;
struct sk_buff *tail;
DEFINE_WAIT(wait);
unix_state_lock(sk);
for (;;) {
- prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
+ prepare_to_wait(sk_sleep(sk), &wait, state);
tail = skb_peek_tail(&sk->sk_receive_queue);
if (tail != last ||
@@ -2549,10 +2550,7 @@ static long unix_stream_data_wait(struct
sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
unix_state_unlock(sk);
- if (freezable)
- timeo = freezable_schedule_timeout(timeo);
- else
- timeo = schedule_timeout(timeo);
+ timeo = schedule_timeout(timeo);
unix_state_lock(sk);
if (sock_flag(sk, SOCK_DEAD))
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-12 11:44 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
@ 2022-04-13 13:24 ` Oleg Nesterov
2022-04-13 16:58 ` Peter Zijlstra
2022-04-13 18:57 ` Oleg Nesterov
0 siblings, 2 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-13 13:24 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
Hi Peter,
I like 1-2 but I need to read them (and other patches) again, a
couple of nits right now.
On 04/12, Peter Zijlstra wrote:
>
> +static int __ptrace_freeze_cond(struct task_struct *p)
> +{
> + if (!task_is_traced(p))
> + return -ESRCH;
if (!task_is_traced(p) || p->parent != current)
return -ESRCH;
we should not spin/sleep if it is traced by another task
> +static int __ptrace_freeze(struct task_struct *p, void *arg)
> +{
> + int ret;
> +
> + ret = __ptrace_freeze_cond(p);
> + if (ret)
> + return ret;
> +
> + /*
> + * Task scheduled between __ptrace_pre_freeze() and here, not our task
> + * anymore.
> + */
> + if (*(unsigned long *)arg != p->nvcsw)
> + return -ESRCH;
> +
> + if (looks_like_a_spurious_pid(p))
> + return -ESRCH;
Oh, I do not think __ptrace_freeze() should check for spurious pid...
looks_like_a_spurious_pid() should be called once in ptrace_check_attach()
before task_call_func(__ptrace_freeze).
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state
2022-04-12 11:44 ` [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state Peter Zijlstra
@ 2022-04-13 13:29 ` Oleg Nesterov
2022-04-13 16:47 ` Peter Zijlstra
0 siblings, 1 reply; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-13 13:29 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/12, Peter Zijlstra wrote:
>
> @@ -475,8 +483,10 @@ static int ptrace_attach(struct task_str
> * in and out of STOPPED are protected by siglock.
> */
> if (task_is_stopped(task) &&
> - task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING))
> + task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING)) {
> + task->jobctl &= ~JOBCTL_STOPPED;
> signal_wake_up_state(task, __TASK_STOPPED);
OK, but just for record before I forget...
It seems that we can s/JOBCTL_STOPPED/JOBCTL_TRACED/ instead, and kill the
nasty wait_on_bit(JOBCTL_TRAPPING_BIT) along with JOBCTL_TRAPPING_BIT. Sure,
this doesn't belong to this series.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state
2022-04-13 13:29 ` Oleg Nesterov
@ 2022-04-13 16:47 ` Peter Zijlstra
0 siblings, 0 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-13 16:47 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Wed, Apr 13, 2022 at 03:29:22PM +0200, Oleg Nesterov wrote:
> On 04/12, Peter Zijlstra wrote:
> >
> > @@ -475,8 +483,10 @@ static int ptrace_attach(struct task_str
> > * in and out of STOPPED are protected by siglock.
> > */
> > if (task_is_stopped(task) &&
> > - task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING))
> > + task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING)) {
> > + task->jobctl &= ~JOBCTL_STOPPED;
> > signal_wake_up_state(task, __TASK_STOPPED);
>
> OK, but just for record before I forget...
>
> It seems that we can s/JOBCTL_STOPPED/JOBCTL_TRACED/ instead, and kill the
> nasty wait_on_bit(JOBCTL_TRAPPING_BIT) along with JOBCTL_TRAPPING_BIT. Sure,
> this doesn't belong to this series.
I'm afraid I didn't look hard enough at that part to really understand
it, but some cleanup around there sounds lovely.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-13 13:24 ` Oleg Nesterov
@ 2022-04-13 16:58 ` Peter Zijlstra
2022-04-13 18:57 ` Oleg Nesterov
1 sibling, 0 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-13 16:58 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Wed, Apr 13, 2022 at 03:24:52PM +0200, Oleg Nesterov wrote:
> Hi Peter,
>
> I like 1-2 but I need to read them (and other patches) again, a
> couple of nits right now.
>
> On 04/12, Peter Zijlstra wrote:
> >
> > +static int __ptrace_freeze_cond(struct task_struct *p)
> > +{
> > + if (!task_is_traced(p))
> > + return -ESRCH;
>
> if (!task_is_traced(p) || p->parent != current)
> return -ESRCH;
>
> we should not spin/sleep if it is traced by another task
Yes, fair enough. And I suppose doing this test without holding siglock
is safe enough.
> > +static int __ptrace_freeze(struct task_struct *p, void *arg)
> > +{
> > + int ret;
> > +
> > + ret = __ptrace_freeze_cond(p);
> > + if (ret)
> > + return ret;
> > +
> > + /*
> > + * Task scheduled between __ptrace_pre_freeze() and here, not our task
> > + * anymore.
> > + */
> > + if (*(unsigned long *)arg != p->nvcsw)
> > + return -ESRCH;
> > +
> > + if (looks_like_a_spurious_pid(p))
> > + return -ESRCH;
>
> Oh, I do not think __ptrace_freeze() should check for spurious pid...
> looks_like_a_spurious_pid() should be called once in ptrace_check_attach()
> before task_call_func(__ptrace_freeze).
I can certainly do that, but since that needs be done with siglock held,
and the __ptrace_freeze call is a one-time affair, I didn't really see
the point in making the code more complicated.
Something like so then?
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -222,7 +222,7 @@ static void ptrace_unfreeze_traced(struc
*/
static int __ptrace_freeze_cond(struct task_struct *p)
{
- if (!task_is_traced(p))
+ if (!task_is_traced(p) || p->parent != current)
return -ESRCH;
if (task_curr(p))
@@ -283,9 +283,6 @@ static int __ptrace_freeze(struct task_s
if (*(unsigned long *)arg != p->nvcsw)
return -ESRCH;
- if (looks_like_a_spurious_pid(p))
- return -ESRCH;
-
if (__fatal_signal_pending(p))
return -ESRCH;
@@ -378,6 +375,9 @@ static int ptrace_check_attach(struct ta
* does ptrace_unlink() before __exit_signal().
*/
spin_lock_irq(&child->sighand->siglock);
+ if (looks_like_a_spurious_pid(child))
+ goto unlock_sig;
+
ret = task_call_func(child, __ptrace_freeze, &nvcsw);
if (ret) {
/*
@@ -386,6 +386,7 @@ static int ptrace_check_attach(struct ta
*/
ret = -ESRCH;
}
+unlock_sig:
spin_unlock_irq(&child->sighand->siglock);
}
unlock:
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-13 13:24 ` Oleg Nesterov
2022-04-13 16:58 ` Peter Zijlstra
@ 2022-04-13 18:57 ` Oleg Nesterov
2022-04-13 18:59 ` Oleg Nesterov
1 sibling, 1 reply; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-13 18:57 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/13, Oleg Nesterov wrote:
>
> I like 1-2 but I need to read them (and other patches) again, a
> couple of nits right now.
Sorry, didn't have time to do this today, and now I am already sleeping.
But... on a second thought, it seems there is a better solution. If nothing
else it is simpler and doesn't duplicate the wait_task_inactive() logic.
How about the patch below instead? On top of 1/5.
Yes,yes, incomplete. in particular see the "!!!!!!!!!" comments. Just to
explain the idea.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-13 18:57 ` Oleg Nesterov
@ 2022-04-13 18:59 ` Oleg Nesterov
2022-04-13 19:20 ` Peter Zijlstra
0 siblings, 1 reply; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-13 18:59 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/13, Oleg Nesterov wrote:
>
> On 04/13, Oleg Nesterov wrote:
> >
> > I like 1-2 but I need to read them (and other patches) again, a
> > couple of nits right now.
>
> Sorry, didn't have time to do this today, and now I am already sleeping.
>
> But... on a second thought, it seems there is a better solution. If nothing
> else it is simpler and doesn't duplicate the wait_task_inactive() logic.
>
> How about the patch below instead? On top of 1/5.
>
> Yes,yes, incomplete. in particular see the "!!!!!!!!!" comments. Just to
> explain the idea.
Cough. forget to attach the patch, sorry for noise.
Oleg.
---
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index ec8b312f7506..1b5a57048e13 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -22,7 +22,8 @@ struct task_struct;
#define JOBCTL_STOPPED_BIT 24
#define JOBCTL_TRACED_BIT 25
-#define JOBCTL_TRACED_FROZEN_BIT 26
+#define JOBCTL_TRACED_XXX_BIT 25
+#define JOBCTL_TRACED_FROZEN_BIT 27
#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
@@ -35,6 +36,7 @@ struct task_struct;
#define JOBCTL_STOPPED (1UL << JOBCTL_STOPPED_BIT)
#define JOBCTL_TRACED (1UL << JOBCTL_TRACED_BIT)
+#define JOBCTL_TRACED_XXX (1UL << JOBCTL_TRACED_XXX_BIT)
#define JOBCTL_TRACED_FROZEN (1UL << JOBCTL_TRACED_FROZEN_BIT)
#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 626f96d275c7..86b5226e6ba2 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -255,6 +255,19 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
{
int ret = -ESRCH;
+ if (!(child->ptrace && child->parent == current))
+ return ret;
+
+ if (ignore_state)
+ return 0;
+
+ if (wait_on_bit(&task->jobctl, JOBCTL_TRACED_XXX_BIT, TASK_KILLABLE))
+ return -EINTR;
+ // now that the tracee cleared JOBCTL_TRACED_XXX_BIT
+ // wait_task_inactive() should succeed or fail "really soon".
+ if (!wait_task_inactive(child, __TASK_TRACED))
+ return ret;
+
/*
* We take the read lock around doing both checks to close a
* possible race where someone else was tracing our child and
@@ -269,23 +282,11 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
* child->sighand can't be NULL, release_task()
* does ptrace_unlink() before __exit_signal().
*/
- if (ignore_state || ptrace_freeze_traced(child))
+ if (ptrace_freeze_traced(child))
ret = 0;
}
read_unlock(&tasklist_lock);
- if (!ret && !ignore_state) {
- if (!wait_task_inactive(child, __TASK_TRACED)) {
- /*
- * This can only happen if may_ptrace_stop() fails and
- * ptrace_stop() changes ->state back to TASK_RUNNING,
- * so we should not worry about leaking __TASK_TRACED.
- */
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
- ret = -ESRCH;
- }
- }
-
return ret;
}
diff --git a/kernel/signal.c b/kernel/signal.c
index 0aea3f0a8002..5ca6235e5231 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2220,7 +2220,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
* schedule() will not sleep if there is a pending signal that
* can awaken the task.
*/
- current->jobctl |= JOBCTL_TRACED;
+ current->jobctl |= (JOBCTL_TRACED | JOBCTL_TRACED_XXX);
set_special_state(TASK_TRACED);
/*
@@ -2291,6 +2291,10 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
preempt_disable();
read_unlock(&tasklist_lock);
cgroup_enter_frozen();
+ // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ // wrong, needs siglock
+ current->jobctl &= ~JOBCTL_TRACED_XXX;
+ wake_up_bit(¤t->jobctl, ~JOBCTL_TRACED_XXX_BIT);
preempt_enable_no_resched();
freezable_schedule();
cgroup_leave_frozen(true);
@@ -2308,6 +2312,8 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
if (gstop_done)
do_notify_parent_cldstop(current, false, why);
+ // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ // need to clear ~JOBCTL_TRACED_XXX
/* tasklist protects us from ptrace_freeze_traced() */
__set_current_state(TASK_RUNNING);
read_code = false;
^ permalink raw reply related [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-13 18:59 ` Oleg Nesterov
@ 2022-04-13 19:20 ` Peter Zijlstra
2022-04-13 19:56 ` Peter Zijlstra
0 siblings, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-13 19:20 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Wed, Apr 13, 2022 at 08:59:10PM +0200, Oleg Nesterov wrote:
> + // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> + // wrong, needs siglock
> + current->jobctl &= ~JOBCTL_TRACED_XXX;
> + wake_up_bit(¤t->jobctl, ~JOBCTL_TRACED_XXX_BIT);
__wake_up_common_lock()
spin_lock_irqsave()
current_save_and_set_rtlock_wait_state();
> + if (wait_on_bit(&task->jobctl, JOBCTL_TRACED_XXX_BIT, TASK_KILLABLE))
> + return -EINTR;
> + // now that the tracee cleared JOBCTL_TRACED_XXX_BIT
> + // wait_task_inactive() should succeed or fail "really soon".
> + if (!wait_task_inactive(child, __TASK_TRACED))
> + return ret;
*whoopsie* ?
> preempt_enable_no_resched();
> freezable_schedule();
> cgroup_leave_frozen(true);
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-13 19:20 ` Peter Zijlstra
@ 2022-04-13 19:56 ` Peter Zijlstra
2022-04-14 11:54 ` Oleg Nesterov
0 siblings, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-13 19:56 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Wed, Apr 13, 2022 at 09:20:53PM +0200, Peter Zijlstra wrote:
> On Wed, Apr 13, 2022 at 08:59:10PM +0200, Oleg Nesterov wrote:
>
>
> > + // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> > + // wrong, needs siglock
> > + current->jobctl &= ~JOBCTL_TRACED_XXX;
> > + wake_up_bit(¤t->jobctl, ~JOBCTL_TRACED_XXX_BIT);
> __wake_up_common_lock()
> spin_lock_irqsave()
> current_save_and_set_rtlock_wait_state();
>
> > + if (wait_on_bit(&task->jobctl, JOBCTL_TRACED_XXX_BIT, TASK_KILLABLE))
> > + return -EINTR;
> > + // now that the tracee cleared JOBCTL_TRACED_XXX_BIT
> > + // wait_task_inactive() should succeed or fail "really soon".
> > + if (!wait_task_inactive(child, __TASK_TRACED))
> > + return ret;
>
>
> *whoopsie* ?
>
> > preempt_enable_no_resched();
> > freezable_schedule();
> > cgroup_leave_frozen(true);
Something that might work; since there's only the one ptracer, is to
instead do something like:
current->jobctl &= ~JOBCTL_TRACED_XXX; // siglock
if (current->ptrace)
wake_up_process(current->parent);
preempt_enable_no_resched();
schedule();
vs
for (;;) {
set_current_state(TASK_UNINTERRUPTIBLE);
if (!(p->jobctl & JOBCTL_TRACED_XXX))
break;
schedule();
}
__set_current_state(TASK_RUNNING);
if (!wait_task_inactive(...))
ptrace_detach() needs some additional magic as well I think, but this
might just work.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-13 19:56 ` Peter Zijlstra
@ 2022-04-14 11:54 ` Oleg Nesterov
2022-04-14 12:08 ` Oleg Nesterov
2022-04-14 18:34 ` Oleg Nesterov
0 siblings, 2 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-14 11:54 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/13, Peter Zijlstra wrote:
>
> On Wed, Apr 13, 2022 at 09:20:53PM +0200, Peter Zijlstra wrote:
> > On Wed, Apr 13, 2022 at 08:59:10PM +0200, Oleg Nesterov wrote:
> >
> >
> > > + // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> > > + // wrong, needs siglock
> > > + current->jobctl &= ~JOBCTL_TRACED_XXX;
> > > + wake_up_bit(¤t->jobctl, ~JOBCTL_TRACED_XXX_BIT);
> > __wake_up_common_lock()
> > spin_lock_irqsave()
> > current_save_and_set_rtlock_wait_state();
OOPS, thanks.
> Something that might work; since there's only the one ptracer, is to
> instead do something like:
>
> current->jobctl &= ~JOBCTL_TRACED_XXX; // siglock
> if (current->ptrace)
> wake_up_process(current->parent);
> preempt_enable_no_resched();
> schedule();
>
>
> vs
>
> for (;;) {
> set_current_state(TASK_UNINTERRUPTIBLE);
> if (!(p->jobctl & JOBCTL_TRACED_XXX))
> break;
> schedule();
Yes, thanks... this is racy, see below, but probably fixeable.
> ptrace_detach() needs some additional magic as well I think, but this
> might just work.
I don't think so, JOBCTL_TRACED_XXX must be always cleared in ptrace_stop()
and ptrace_detach() implies ptrace_check_attach().
Lets forget about the proble above for the moment. There is another problem
with my patch,
if (!(child->ptrace && child->parent == current))
return ret;
this check is racy without tasklist, we can race with another task attaching
to our natural child (so that child->parent == current), ptrace_attach() sets
task->ptrace = flags first and changes child->parent after that.
In this case:
if (ignore_state)
return 0;
this is just wrong,
if (wait_on_bit(&task->jobctl, JOBCTL_TRACED_XXX_BIT, TASK_KILLABLE))
return -EINTR;
this is fine,
if (!wait_task_inactive(child, __TASK_TRACED))
this not right too. wait_task_inactive() can loop "forever" doing schedule_hrtimeout()
if the actual debugger stops/resumes the tracee continuously. This is pure theoretical,
but still.
And this also means that the code above needs some changes too, we can rely on
wake_up_process(current->parent).
OK, let me think about it. Thanks!
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-14 11:54 ` Oleg Nesterov
@ 2022-04-14 12:08 ` Oleg Nesterov
2022-04-14 18:34 ` Oleg Nesterov
1 sibling, 0 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-14 12:08 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
this doesn't really matter, just for completeness:
On 04/14, Oleg Nesterov wrote:
>
> if (wait_on_bit(&task->jobctl, JOBCTL_TRACED_XXX_BIT, TASK_KILLABLE))
> return -EINTR;
>
> this is fine,
No, this is wrong too. wake_up_bit() does exclusive wakeup.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-14 11:54 ` Oleg Nesterov
2022-04-14 12:08 ` Oleg Nesterov
@ 2022-04-14 18:34 ` Oleg Nesterov
2022-04-14 22:45 ` Peter Zijlstra
1 sibling, 1 reply; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-14 18:34 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/14, Oleg Nesterov wrote:
>
> OK, let me think about it. Thanks!
So. what do you think about the patch below?
If it can work, then 1/5 needs some changes, I think. In particular,
it should not introduce JOBCTL_TRACED_FROZEN until 5/5, and perhaps
we can avoid this flag altogether...
This is how ptrace_check_attach() looks with the patch applied:
static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
{
int traced;
/*
* We take the read lock around doing both checks to close a
* possible race where someone else attaches or detaches our
* natural child.
*/
read_lock(&tasklist_lock);
traced = child->ptrace && child->parent == current;
read_unlock(&tasklist_lock);
if (!traced)
return -ESRCH;
WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
if (ignore_state)
return 0;
for (;;) {
if (fatal_signal_pending(current))
return -EINTR;
set_current_state(TASK_KILLABLE);
if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED)) {
__set_current_state(TASK_RUNNING);
break;
}
schedule();
}
if (!wait_task_inactive(child, TASK_TRACED) ||
!ptrace_freeze_traced(child))
return -ESRCH;
return 0;
}
Oleg.
---
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index ec8b312f7506..1b5a57048e13 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -22,7 +22,8 @@ struct task_struct;
#define JOBCTL_STOPPED_BIT 24
#define JOBCTL_TRACED_BIT 25
-#define JOBCTL_TRACED_FROZEN_BIT 26
+#define JOBCTL_TRACED_XXX_BIT 25
+#define JOBCTL_TRACED_FROZEN_BIT 27
#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
@@ -35,6 +36,7 @@ struct task_struct;
#define JOBCTL_STOPPED (1UL << JOBCTL_STOPPED_BIT)
#define JOBCTL_TRACED (1UL << JOBCTL_TRACED_BIT)
+#define JOBCTL_TRACED_XXX (1UL << JOBCTL_TRACED_XXX_BIT)
#define JOBCTL_TRACED_FROZEN (1UL << JOBCTL_TRACED_FROZEN_BIT)
#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 626f96d275c7..5a03ae5cb0c0 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -193,20 +193,22 @@ static bool looks_like_a_spurious_pid(struct task_struct *task)
*/
static bool ptrace_freeze_traced(struct task_struct *task)
{
+ unsigned long flags;
bool ret = false;
/* Lockless, nobody but us can set this flag */
if (task->jobctl & JOBCTL_LISTENING)
return ret;
+ if (!lock_task_sighand(task, &flags))
+ return ret;
- spin_lock_irq(&task->sighand->siglock);
if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
!__fatal_signal_pending(task)) {
task->jobctl |= JOBCTL_TRACED_FROZEN;
WRITE_ONCE(task->__state, __TASK_TRACED);
ret = true;
}
- spin_unlock_irq(&task->sighand->siglock);
+ unlock_task_sighand(task, &flags);
return ret;
}
@@ -253,40 +255,39 @@ static void ptrace_unfreeze_traced(struct task_struct *task)
*/
static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
{
- int ret = -ESRCH;
-
+ int traced;
/*
* We take the read lock around doing both checks to close a
- * possible race where someone else was tracing our child and
- * detached between these two checks. After this locked check,
- * we are sure that this is our traced child and that can only
- * be changed by us so it's not changing right after this.
+ * possible race where someone else attaches or detaches our
+ * natural child.
*/
read_lock(&tasklist_lock);
- if (child->ptrace && child->parent == current) {
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
- /*
- * child->sighand can't be NULL, release_task()
- * does ptrace_unlink() before __exit_signal().
- */
- if (ignore_state || ptrace_freeze_traced(child))
- ret = 0;
- }
+ traced = child->ptrace && child->parent == current;
read_unlock(&tasklist_lock);
- if (!ret && !ignore_state) {
- if (!wait_task_inactive(child, __TASK_TRACED)) {
- /*
- * This can only happen if may_ptrace_stop() fails and
- * ptrace_stop() changes ->state back to TASK_RUNNING,
- * so we should not worry about leaking __TASK_TRACED.
- */
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
- ret = -ESRCH;
+ if (!traced)
+ return -ESRCH;
+
+ WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
+ if (ignore_state)
+ return 0;
+
+ for (;;) {
+ if (fatal_signal_pending(current))
+ return -EINTR;
+ set_current_state(TASK_KILLABLE);
+ if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED)) {
+ __set_current_state(TASK_RUNNING);
+ break;
}
+ schedule();
}
- return ret;
+ if (!wait_task_inactive(child, TASK_TRACED) ||
+ !ptrace_freeze_traced(child))
+ return -ESRCH;
+
+ return 0;
}
static bool ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
diff --git a/kernel/signal.c b/kernel/signal.c
index 0aea3f0a8002..684f0a0e9c71 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2182,6 +2182,14 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
spin_unlock_irqrestore(&sighand->siglock, flags);
}
+static void clear_traced_xxx(void)
+{
+ spin_lock_irq(¤t->sighand->siglock);
+ current->jobctl &= ~JOBCTL_TRACED_XXX;
+ spin_unlock_irq(¤t->sighand->siglock);
+ wake_up_state(current->parent, TASK_KILLABLE);
+}
+
/*
* This must be called with current->sighand->siglock held.
*
@@ -2220,7 +2228,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
* schedule() will not sleep if there is a pending signal that
* can awaken the task.
*/
- current->jobctl |= JOBCTL_TRACED;
+ current->jobctl |= JOBCTL_TRACED | JOBCTL_TRACED_XXX;
set_special_state(TASK_TRACED);
/*
@@ -2282,6 +2290,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
if (gstop_done && ptrace_reparented(current))
do_notify_parent_cldstop(current, false, why);
+ clear_traced_xxx();
/*
* Don't want to allow preemption here, because
* sys_ptrace() needs this task to be inactive.
@@ -2296,9 +2305,6 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
cgroup_leave_frozen(true);
} else {
/*
- * By the time we got the lock, our tracer went away.
- * Don't drop the lock yet, another tracer may come.
- *
* If @gstop_done, the ptracer went away between group stop
* completion and here. During detach, it would have set
* JOBCTL_STOP_PENDING on us and we'll re-enter
@@ -2307,13 +2313,14 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
*/
if (gstop_done)
do_notify_parent_cldstop(current, false, why);
+ clear_traced_xxx();
+ read_unlock(&tasklist_lock);
- /* tasklist protects us from ptrace_freeze_traced() */
+ /* JOBCTL_TRACED_XXX protects us from ptrace_freeze_traced() */
__set_current_state(TASK_RUNNING);
read_code = false;
if (clear_code)
exit_code = 0;
- read_unlock(&tasklist_lock);
}
/*
^ permalink raw reply related [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-14 18:34 ` Oleg Nesterov
@ 2022-04-14 22:45 ` Peter Zijlstra
2022-04-15 10:16 ` Oleg Nesterov
0 siblings, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-14 22:45 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Thu, Apr 14, 2022 at 08:34:33PM +0200, Oleg Nesterov wrote:
> On 04/14, Oleg Nesterov wrote:
> >
> > OK, let me think about it. Thanks!
>
> So. what do you think about the patch below?
Might just work, will have to look at it again though ;-) Comments
below.
> If it can work, then 1/5 needs some changes, I think. In particular,
> it should not introduce JOBCTL_TRACED_FROZEN until 5/5, and perhaps
That TRACED_FROZEN was to distinguish the TASK_TRACED and __TASK_TRACED
state, and isn't related to the freezer.
> we can avoid this flag altogether...
>
> This is how ptrace_check_attach() looks with the patch applied:
>
> static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
> {
> int traced;
> /*
> * We take the read lock around doing both checks to close a
> * possible race where someone else attaches or detaches our
> * natural child.
> */
> read_lock(&tasklist_lock);
> traced = child->ptrace && child->parent == current;
> read_unlock(&tasklist_lock);
>
> if (!traced)
> return -ESRCH;
The thing being, that if it is our ptrace child, it won't be going away
since we're running this code and not ptrace_detach(). Right?
I failed to realize this earlier and I think that's part of why my
solution is somewhat over complicated.
> WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
> if (ignore_state)
> return 0;
>
> for (;;) {
> if (fatal_signal_pending(current))
> return -EINTR;
What if signal_wake_up(.resume=true) happens here? In that case we miss
the fatal pending, and task state isn't changed yet so we'll happily go
sleep.
> set_current_state(TASK_KILLABLE);
> if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED)) {
TRACED_XXX ?
> __set_current_state(TASK_RUNNING);
> break;
> }
> schedule();
> }
That is, shouldn't we write this like:
for (;;) {
set_current_state(TASK_KILLABLE);
if (fatal_signal_pending(current)) {
ret = -EINTR;
break;
}
if (!(READ_ONCE(current->jobctl) & JOBCTL_TRACED_XXX)) {
ret = 0;
break;
}
schedule();
}
__set_current_state(TASK_RUNNING);
if (ret)
return ret;
> if (!wait_task_inactive(child, TASK_TRACED) ||
> !ptrace_freeze_traced(child))
> return -ESRCH;
>
> return 0;
> }
>
> Oleg.
> ---
>
> diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
> index ec8b312f7506..1b5a57048e13 100644
> --- a/include/linux/sched/jobctl.h
> +++ b/include/linux/sched/jobctl.h
> @@ -22,7 +22,8 @@ struct task_struct;
>
> #define JOBCTL_STOPPED_BIT 24
> #define JOBCTL_TRACED_BIT 25
> -#define JOBCTL_TRACED_FROZEN_BIT 26
> +#define JOBCTL_TRACED_XXX_BIT 25
> +#define JOBCTL_TRACED_FROZEN_BIT 27
>
> #define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
> #define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
> @@ -35,6 +36,7 @@ struct task_struct;
>
> #define JOBCTL_STOPPED (1UL << JOBCTL_STOPPED_BIT)
> #define JOBCTL_TRACED (1UL << JOBCTL_TRACED_BIT)
> +#define JOBCTL_TRACED_XXX (1UL << JOBCTL_TRACED_XXX_BIT)
> #define JOBCTL_TRACED_FROZEN (1UL << JOBCTL_TRACED_FROZEN_BIT)
>
> #define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
> diff --git a/kernel/ptrace.c b/kernel/ptrace.c
> index 626f96d275c7..5a03ae5cb0c0 100644
> --- a/kernel/ptrace.c
> +++ b/kernel/ptrace.c
> @@ -193,20 +193,22 @@ static bool looks_like_a_spurious_pid(struct task_struct *task)
> */
> static bool ptrace_freeze_traced(struct task_struct *task)
> {
> + unsigned long flags;
> bool ret = false;
>
> /* Lockless, nobody but us can set this flag */
> if (task->jobctl & JOBCTL_LISTENING)
> return ret;
> + if (!lock_task_sighand(task, &flags))
> + return ret;
>
> - spin_lock_irq(&task->sighand->siglock);
> if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
> !__fatal_signal_pending(task)) {
> task->jobctl |= JOBCTL_TRACED_FROZEN;
> WRITE_ONCE(task->__state, __TASK_TRACED);
> ret = true;
> }
I would feel much better if this were still a task_func_call()
validating !->on_rq && !->on_cpu.
> - spin_unlock_irq(&task->sighand->siglock);
> + unlock_task_sighand(task, &flags);
>
> return ret;
> }
> @@ -253,40 +255,39 @@ static void ptrace_unfreeze_traced(struct task_struct *task)
> */
> static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
> {
> - int ret = -ESRCH;
> -
> + int traced;
> /*
> * We take the read lock around doing both checks to close a
> - * possible race where someone else was tracing our child and
> - * detached between these two checks. After this locked check,
> - * we are sure that this is our traced child and that can only
> - * be changed by us so it's not changing right after this.
> + * possible race where someone else attaches or detaches our
> + * natural child.
> */
> read_lock(&tasklist_lock);
> - if (child->ptrace && child->parent == current) {
> - WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
> - /*
> - * child->sighand can't be NULL, release_task()
> - * does ptrace_unlink() before __exit_signal().
> - */
> - if (ignore_state || ptrace_freeze_traced(child))
> - ret = 0;
> - }
> + traced = child->ptrace && child->parent == current;
> read_unlock(&tasklist_lock);
>
> - if (!ret && !ignore_state) {
> - if (!wait_task_inactive(child, __TASK_TRACED)) {
> - /*
> - * This can only happen if may_ptrace_stop() fails and
> - * ptrace_stop() changes ->state back to TASK_RUNNING,
> - * so we should not worry about leaking __TASK_TRACED.
> - */
> - WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
> - ret = -ESRCH;
> + if (!traced)
> + return -ESRCH;
> +
> + WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
> + if (ignore_state)
> + return 0;
> +
> + for (;;) {
> + if (fatal_signal_pending(current))
> + return -EINTR;
> + set_current_state(TASK_KILLABLE);
> + if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED)) {
> + __set_current_state(TASK_RUNNING);
> + break;
> }
> + schedule();
> }
>
> - return ret;
> + if (!wait_task_inactive(child, TASK_TRACED) ||
> + !ptrace_freeze_traced(child))
> + return -ESRCH;
> +
> + return 0;
> }
>
> static bool ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
> diff --git a/kernel/signal.c b/kernel/signal.c
> index 0aea3f0a8002..684f0a0e9c71 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -2182,6 +2182,14 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
> spin_unlock_irqrestore(&sighand->siglock, flags);
> }
>
> +static void clear_traced_xxx(void)
> +{
> + spin_lock_irq(¤t->sighand->siglock);
> + current->jobctl &= ~JOBCTL_TRACED_XXX;
> + spin_unlock_irq(¤t->sighand->siglock);
> + wake_up_state(current->parent, TASK_KILLABLE);
> +}
> +
> /*
> * This must be called with current->sighand->siglock held.
> *
> @@ -2220,7 +2228,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> * schedule() will not sleep if there is a pending signal that
> * can awaken the task.
> */
> - current->jobctl |= JOBCTL_TRACED;
> + current->jobctl |= JOBCTL_TRACED | JOBCTL_TRACED_XXX;
> set_special_state(TASK_TRACED);
>
> /*
> @@ -2282,6 +2290,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> if (gstop_done && ptrace_reparented(current))
> do_notify_parent_cldstop(current, false, why);
>
> + clear_traced_xxx();
> /*
> * Don't want to allow preemption here, because
> * sys_ptrace() needs this task to be inactive.
> @@ -2296,9 +2305,6 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> cgroup_leave_frozen(true);
> } else {
> /*
> - * By the time we got the lock, our tracer went away.
> - * Don't drop the lock yet, another tracer may come.
> - *
> * If @gstop_done, the ptracer went away between group stop
> * completion and here. During detach, it would have set
> * JOBCTL_STOP_PENDING on us and we'll re-enter
> @@ -2307,13 +2313,14 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> */
> if (gstop_done)
> do_notify_parent_cldstop(current, false, why);
> + clear_traced_xxx();
> + read_unlock(&tasklist_lock);
>
> - /* tasklist protects us from ptrace_freeze_traced() */
> + /* JOBCTL_TRACED_XXX protects us from ptrace_freeze_traced() */
But... TRACED_XXX has just been cleared ?!
> __set_current_state(TASK_RUNNING);
> read_code = false;
> if (clear_code)
> exit_code = 0;
> - read_unlock(&tasklist_lock);
> }
>
> /*
>
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-14 22:45 ` Peter Zijlstra
@ 2022-04-15 10:16 ` Oleg Nesterov
2022-04-15 10:57 ` Oleg Nesterov
2022-04-15 12:00 ` Peter Zijlstra
0 siblings, 2 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-15 10:16 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/15, Peter Zijlstra wrote:
>
> On Thu, Apr 14, 2022 at 08:34:33PM +0200, Oleg Nesterov wrote:
>
> > If it can work, then 1/5 needs some changes, I think. In particular,
> > it should not introduce JOBCTL_TRACED_FROZEN until 5/5, and perhaps
>
> That TRACED_FROZEN was to distinguish the TASK_TRACED and __TASK_TRACED
> state, and isn't related to the freezer.
Lets forget about 3-5 which I didn't read carefully yet. So why do we
need TRACED_FROZEN?
From 1/5:
static inline void signal_wake_up(struct task_struct *t, bool resume)
{
+ lockdep_assert_held(&t->sighand->siglock);
+
+ if (resume && !(t->jobctl & JOBCTL_TRACED_FROZEN))
+ t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED);
+
signal_wake_up_state(t, resume ? TASK_WAKEKILL : 0);
}
+
static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
{
+ lockdep_assert_held(&t->sighand->siglock);
+
+ if (resume)
+ t->jobctl &= ~JOBCTL_TRACED;
+
signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
}
Can't we simply change signal_wake_up_state(),
void signal_wake_up_state(struct task_struct *t, unsigned int state)
{
set_tsk_thread_flag(t, TIF_SIGPENDING);
/*
* TASK_WAKEKILL also means wake it up in the stopped/traced/killable
* case. We don't check t->state here because there is a race with it
* executing another processor and just now entering stopped state.
* By using wake_up_state, we ensure the process will wake up and
* handle its death signal.
*/
if (wake_up_state(t, state | TASK_INTERRUPTIBLE))
t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED);
else
kick_process(t);
}
?
> > /*
> > * We take the read lock around doing both checks to close a
> > * possible race where someone else attaches or detaches our
> > * natural child.
> > */
> > read_lock(&tasklist_lock);
> > traced = child->ptrace && child->parent == current;
> > read_unlock(&tasklist_lock);
> >
> > if (!traced)
> > return -ESRCH;
>
> The thing being, that if it is our ptrace child, it won't be going away
> since we're running this code and not ptrace_detach(). Right?
Yes. and nobody else can detach it.
Another tracer can't attach until child->ptrace is cleared, but this can
only happen if a) this child is killed and b) another thread does wait()
and reaps it; but after that attach() is obviously impossible.
But since this child can go away, the patch changes ptrace_freeze_traced()
to use lock_task_sighand().
> > for (;;) {
> > if (fatal_signal_pending(current))
> > return -EINTR;
>
> What if signal_wake_up(.resume=true) happens here? In that case we miss
> the fatal pending, and task state isn't changed yet so we'll happily go
> sleep.
No, it won't sleep, see the signal_pending_state() check in schedule().
> > set_current_state(TASK_KILLABLE);
And let me explain TASK_KILLABLE just in case... We could just use
TASK_UNINTERRUPTIBLE and avoid the signal_pending() check, but KILLABLE
looks "safer" to me. If the tracer hangs because of some bug, at least
it can be killed from userspace.
> > if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED)) {
>
> TRACED_XXX ?
oops ;)
> > - spin_lock_irq(&task->sighand->siglock);
> > if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
> > !__fatal_signal_pending(task)) {
> > task->jobctl |= JOBCTL_TRACED_FROZEN;
> > WRITE_ONCE(task->__state, __TASK_TRACED);
> > ret = true;
> > }
>
> I would feel much better if this were still a task_func_call()
> validating !->on_rq && !->on_cpu.
Well, but "on_rq || on_cpu" would mean that wait_task_inactive() is buggy ?
But! I forgot to make anothet change in this code. I do not think it should
rely on task_is_traced(). We are going to abuse task->__state, so I think
it should check task->__state == TASK_TRACED directly. Say,
if (READ_ONCE(task->__state) == TASK_TRACED && ...) {
WRITE_ONCE(task->__state, __TASK_TRACED);
WARN_ON_ONCE(!task_is_traced(task));
ret = true;
}
looks more clean to me. What do you think?
> > @@ -2307,13 +2313,14 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> > */
> > if (gstop_done)
> > do_notify_parent_cldstop(current, false, why);
> > + clear_traced_xxx();
> > + read_unlock(&tasklist_lock);
> >
> > - /* tasklist protects us from ptrace_freeze_traced() */
> > + /* JOBCTL_TRACED_XXX protects us from ptrace_freeze_traced() */
>
> But... TRACED_XXX has just been cleared ?!
Cough ;) OK, I'll move __set_current_state() back under tasklist.
And in this case we do not need wake_up(parent), so we can shift it from
clear_traced_xxx() into another branch.
OK, so far it seems that this patch needs a couple of simple fixes you
pointed out, but before I send V2:
- do you agree we can avoid JOBCTL_TRACED_FROZEN in 1-2 ?
- will you agree if I change ptrace_freeze_traced() to rely
on __state == TASK_TRACED rather than task_is_traced() ?
Thanks,
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-15 10:16 ` Oleg Nesterov
@ 2022-04-15 10:57 ` Oleg Nesterov
2022-04-15 12:01 ` Peter Zijlstra
2022-04-20 10:20 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
2022-04-15 12:00 ` Peter Zijlstra
1 sibling, 2 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-15 10:57 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/15, Oleg Nesterov wrote:
>
> OK, so far it seems that this patch needs a couple of simple fixes you
> pointed out, but before I send V2:
>
> - do you agree we can avoid JOBCTL_TRACED_FROZEN in 1-2 ?
>
> - will you agree if I change ptrace_freeze_traced() to rely
> on __state == TASK_TRACED rather than task_is_traced() ?
>
Forgot to say, I think 1/5 needs some changes in any case...
ptrace_resume() does wake_up_state(child, __TASK_TRACED) but doesn't
clear JOBCTL_TRACED. The "else" branch in ptrace_stop() leaks this flag
too. Perhaps I missed something, I'll reread 1/5 again, but the main
question to me is whether 1-2 actually need the JOBCTL_TRACED_FROZEN flag.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-15 10:16 ` Oleg Nesterov
2022-04-15 10:57 ` Oleg Nesterov
@ 2022-04-15 12:00 ` Peter Zijlstra
2022-04-15 12:56 ` Oleg Nesterov
1 sibling, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-15 12:00 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Fri, Apr 15, 2022 at 12:16:44PM +0200, Oleg Nesterov wrote:
> On 04/15, Peter Zijlstra wrote:
> >
> > On Thu, Apr 14, 2022 at 08:34:33PM +0200, Oleg Nesterov wrote:
> >
> > > If it can work, then 1/5 needs some changes, I think. In particular,
> > > it should not introduce JOBCTL_TRACED_FROZEN until 5/5, and perhaps
> >
> > That TRACED_FROZEN was to distinguish the TASK_TRACED and __TASK_TRACED
> > state, and isn't related to the freezer.
>
> Lets forget about 3-5 which I didn't read carefully yet. So why do we
> need TRACED_FROZEN?
The purpose of 1/5 was to not have any unique state in __state. To at
all times be able to reconstruct __state from outside information (where
needed).
Agreed that this particular piece of state isn't needed until 5/5, but
the concept is independent (also 5/5 is insanely large already).
> From 1/5:
>
> static inline void signal_wake_up(struct task_struct *t, bool resume)
> {
> + lockdep_assert_held(&t->sighand->siglock);
> +
> + if (resume && !(t->jobctl & JOBCTL_TRACED_FROZEN))
> + t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED);
> +
> signal_wake_up_state(t, resume ? TASK_WAKEKILL : 0);
> }
> +
> static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
> {
> + lockdep_assert_held(&t->sighand->siglock);
> +
> + if (resume)
> + t->jobctl &= ~JOBCTL_TRACED;
> +
> signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
> }
>
> Can't we simply change signal_wake_up_state(),
>
> void signal_wake_up_state(struct task_struct *t, unsigned int state)
> {
> set_tsk_thread_flag(t, TIF_SIGPENDING);
> /*
> * TASK_WAKEKILL also means wake it up in the stopped/traced/killable
> * case. We don't check t->state here because there is a race with it
> * executing another processor and just now entering stopped state.
> * By using wake_up_state, we ensure the process will wake up and
> * handle its death signal.
> */
> if (wake_up_state(t, state | TASK_INTERRUPTIBLE))
> t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED);
> else
> kick_process(t);
> }
>
> ?
This would be broken when we so signal_wake_up_state() when state
doesn't match. Does that happen? I'm thikning siglock protects us from
the most obvious races, but still.
If not broken, then it needs at least a comment explaining why not etc..
I'm sure to not remember many of these details.
Also, signal_wake_up_state() really can do with that
lockdep_assert_held() as well ;-)
> > > /*
> > > * We take the read lock around doing both checks to close a
> > > * possible race where someone else attaches or detaches our
> > > * natural child.
> > > */
> > > read_lock(&tasklist_lock);
> > > traced = child->ptrace && child->parent == current;
> > > read_unlock(&tasklist_lock);
> > >
> > > if (!traced)
> > > return -ESRCH;
> >
> > The thing being, that if it is our ptrace child, it won't be going away
> > since we're running this code and not ptrace_detach(). Right?
>
> Yes. and nobody else can detach it.
>
> Another tracer can't attach until child->ptrace is cleared, but this can
> only happen if a) this child is killed and b) another thread does wait()
> and reaps it; but after that attach() is obviously impossible.
>
> But since this child can go away, the patch changes ptrace_freeze_traced()
> to use lock_task_sighand().
Right.
> > > for (;;) {
> > > if (fatal_signal_pending(current))
> > > return -EINTR;
> >
> > What if signal_wake_up(.resume=true) happens here? In that case we miss
> > the fatal pending, and task state isn't changed yet so we'll happily go
> > sleep.
>
> No, it won't sleep, see the signal_pending_state() check in schedule().
Urgh, forgot about that one ;-)
> > > set_current_state(TASK_KILLABLE);
>
> And let me explain TASK_KILLABLE just in case... We could just use
> TASK_UNINTERRUPTIBLE and avoid the signal_pending() check, but KILLABLE
> looks "safer" to me. If the tracer hangs because of some bug, at least
> it can be killed from userspace.
Agreed.
>
> > > if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED)) {
> >
> > TRACED_XXX ?
>
> oops ;)
>
> > > - spin_lock_irq(&task->sighand->siglock);
> > > if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
> > > !__fatal_signal_pending(task)) {
> > > task->jobctl |= JOBCTL_TRACED_FROZEN;
> > > WRITE_ONCE(task->__state, __TASK_TRACED);
> > > ret = true;
> > > }
> >
> > I would feel much better if this were still a task_func_call()
> > validating !->on_rq && !->on_cpu.
>
> Well, but "on_rq || on_cpu" would mean that wait_task_inactive() is buggy ?
Yes, but I'm starting to feel a little paranoid here. Better safe than
sorry etc..
> But! I forgot to make anothet change in this code. I do not think it should
> rely on task_is_traced(). We are going to abuse task->__state, so I think
> it should check task->__state == TASK_TRACED directly. Say,
>
> if (READ_ONCE(task->__state) == TASK_TRACED && ...) {
> WRITE_ONCE(task->__state, __TASK_TRACED);
> WARN_ON_ONCE(!task_is_traced(task));
> ret = true;
> }
>
> looks more clean to me. What do you think?
Agreed on this.
> > > @@ -2307,13 +2313,14 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> > > */
> > > if (gstop_done)
> > > do_notify_parent_cldstop(current, false, why);
> > > + clear_traced_xxx();
> > > + read_unlock(&tasklist_lock);
> > >
> > > - /* tasklist protects us from ptrace_freeze_traced() */
> > > + /* JOBCTL_TRACED_XXX protects us from ptrace_freeze_traced() */
> >
> > But... TRACED_XXX has just been cleared ?!
>
> Cough ;) OK, I'll move __set_current_state() back under tasklist.
>
> And in this case we do not need wake_up(parent), so we can shift it from
> clear_traced_xxx() into another branch.
>
> OK, so far it seems that this patch needs a couple of simple fixes you
> pointed out, but before I send V2:
>
> - do you agree we can avoid JOBCTL_TRACED_FROZEN in 1-2 ?
We can for the sake of 2 avoid TRACED_FROZEN, but as explained at the
start, the point of 1 was to ensure there is no unique state in __state,
and I think in that respect we can keep it, hmm?
> - will you agree if I change ptrace_freeze_traced() to rely
> on __state == TASK_TRACED rather than task_is_traced() ?
Yes.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-15 10:57 ` Oleg Nesterov
@ 2022-04-15 12:01 ` Peter Zijlstra
2022-04-18 17:01 ` Oleg Nesterov
2022-04-20 10:20 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
1 sibling, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-15 12:01 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Fri, Apr 15, 2022 at 12:57:56PM +0200, Oleg Nesterov wrote:
> On 04/15, Oleg Nesterov wrote:
> >
> > OK, so far it seems that this patch needs a couple of simple fixes you
> > pointed out, but before I send V2:
> >
> > - do you agree we can avoid JOBCTL_TRACED_FROZEN in 1-2 ?
> >
> > - will you agree if I change ptrace_freeze_traced() to rely
> > on __state == TASK_TRACED rather than task_is_traced() ?
> >
>
> Forgot to say, I think 1/5 needs some changes in any case...
>
> ptrace_resume() does wake_up_state(child, __TASK_TRACED) but doesn't
> clear JOBCTL_TRACED. The "else" branch in ptrace_stop() leaks this flag
> too.
Urgh, yes, I seemed to have missed that one :-(
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-15 12:00 ` Peter Zijlstra
@ 2022-04-15 12:56 ` Oleg Nesterov
0 siblings, 0 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-15 12:56 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/15, Peter Zijlstra wrote:
>
> On Fri, Apr 15, 2022 at 12:16:44PM +0200, Oleg Nesterov wrote:
> >
> > Lets forget about 3-5 which I didn't read carefully yet. So why do we
> > need TRACED_FROZEN?
>
> The purpose of 1/5 was to not have any unique state in __state. To at
> all times be able to reconstruct __state from outside information (where
> needed).
>
> Agreed that this particular piece of state isn't needed until 5/5, but
> the concept is independent (also 5/5 is insanely large already).
OK, so in my opinion it would be more clean if TRACED_FROZEN comes in a
separate (and simple) patch before 5/5.
I won't really argue, but to me this flag looks confusing and unnecessary
in 1-2 (which btw look like a -stable material to me).
> > Can't we simply change signal_wake_up_state(),
> >
> > void signal_wake_up_state(struct task_struct *t, unsigned int state)
> > {
> > set_tsk_thread_flag(t, TIF_SIGPENDING);
> > /*
> > * TASK_WAKEKILL also means wake it up in the stopped/traced/killable
> > * case. We don't check t->state here because there is a race with it
> > * executing another processor and just now entering stopped state.
> > * By using wake_up_state, we ensure the process will wake up and
> > * handle its death signal.
> > */
> > if (wake_up_state(t, state | TASK_INTERRUPTIBLE))
> > t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED);
> > else
> > kick_process(t);
> > }
> >
> > ?
>
> This would be broken when we so signal_wake_up_state() when state
> doesn't match. Does that happen? I'm thikning siglock protects us from
> the most obvious races, but still.
Yes, even set_tsk_thread_flag(TIF_SIGPENDING) is not safe without siglock.
> Also, signal_wake_up_state() really can do with that
> lockdep_assert_held() as well ;-)
OK, lets add lockdep_assert_held() at the start of signal_wake_up_state ?
Agreed, this probably needs a comment, but this looks much simpler and
more understandable than 2 additional "if (resume)" checks in
signal_wake_up() and ptrace_signal_wake_up().
> > > > - spin_lock_irq(&task->sighand->siglock);
> > > > if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
> > > > !__fatal_signal_pending(task)) {
> > > > task->jobctl |= JOBCTL_TRACED_FROZEN;
> > > > WRITE_ONCE(task->__state, __TASK_TRACED);
> > > > ret = true;
> > > > }
> > >
> > > I would feel much better if this were still a task_func_call()
> > > validating !->on_rq && !->on_cpu.
> >
> > Well, but "on_rq || on_cpu" would mean that wait_task_inactive() is buggy ?
>
> Yes, but I'm starting to feel a little paranoid here. Better safe than
> sorry etc..
OK, can we simply add
WARN_ON_ONCE(ret && (on_rq || on_cpu));
after unlock_task_sighand() ? this is racy without rq_lock but should
catch the possible problems.
> > - do you agree we can avoid JOBCTL_TRACED_FROZEN in 1-2 ?
>
> We can for the sake of 2 avoid TRACED_FROZEN, but as explained at the
> start, the point of 1 was to ensure there is no unique state in __state,
> and I think in that respect we can keep it, hmm?
See above... I understand the purpose of TRACED_FROZEN (I hope ;),
but not in 1-2, and unless I missed something the change in signal_wake_up
above simply looks better to me, but of course this is subjective.
> > - will you agree if I change ptrace_freeze_traced() to rely
> > on __state == TASK_TRACED rather than task_is_traced() ?
>
> Yes.
Great, thanks. I'll return tomorrow.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-15 12:01 ` Peter Zijlstra
@ 2022-04-18 17:01 ` Oleg Nesterov
2022-04-18 17:19 ` Oleg Nesterov
2022-04-20 13:17 ` Peter Zijlstra
0 siblings, 2 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-18 17:01 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/15, Peter Zijlstra wrote:
>
> On Fri, Apr 15, 2022 at 12:57:56PM +0200, Oleg Nesterov wrote:
> > On 04/15, Oleg Nesterov wrote:
> > >
> > > OK, so far it seems that this patch needs a couple of simple fixes you
> > > pointed out, but before I send V2:
> > >
> > > - do you agree we can avoid JOBCTL_TRACED_FROZEN in 1-2 ?
> > >
> > > - will you agree if I change ptrace_freeze_traced() to rely
> > > on __state == TASK_TRACED rather than task_is_traced() ?
> > >
> >
> > Forgot to say, I think 1/5 needs some changes in any case...
> >
> > ptrace_resume() does wake_up_state(child, __TASK_TRACED) but doesn't
> > clear JOBCTL_TRACED. The "else" branch in ptrace_stop() leaks this flag
> > too.
>
> Urgh, yes, I seemed to have missed that one :-(
OK, I'll wait for updated version and send V3 on top of it.
I think the fixes are simple. ptrace_resume() should simply remove the
minor "need_siglock" optimization and clear JOBCTL_TRACED. As for the
"else" branch in ptrace_stop(), perhaps 1/5 can introduce the trivial
static void clear_traced_jobctl_flags(unsigned long flags)
{
spin_lock_irq(¤t->sighand->siglock);
current->jobctl &= ~flags;
spin_unlock_irq(¤t->sighand->siglock);
}
which can be reused by 2/5 to clear JOBCTL_TRACED_XXX. And, Peter, feel
free to join 1/5 and this patch if you think this makes any sense.
Meanwhile see V2 on top of the current version.
Oleg.
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index ec8b312f7506..1b5a57048e13 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -22,7 +22,8 @@ struct task_struct;
#define JOBCTL_STOPPED_BIT 24
#define JOBCTL_TRACED_BIT 25
-#define JOBCTL_TRACED_FROZEN_BIT 26
+#define JOBCTL_TRACED_XXX_BIT 25
+#define JOBCTL_TRACED_FROZEN_BIT 27
#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
@@ -35,6 +36,7 @@ struct task_struct;
#define JOBCTL_STOPPED (1UL << JOBCTL_STOPPED_BIT)
#define JOBCTL_TRACED (1UL << JOBCTL_TRACED_BIT)
+#define JOBCTL_TRACED_XXX (1UL << JOBCTL_TRACED_XXX_BIT)
#define JOBCTL_TRACED_FROZEN (1UL << JOBCTL_TRACED_FROZEN_BIT)
#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 626f96d275c7..ec104bae4e21 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -193,20 +193,24 @@ static bool looks_like_a_spurious_pid(struct task_struct *task)
*/
static bool ptrace_freeze_traced(struct task_struct *task)
{
+ unsigned long flags;
bool ret = false;
/* Lockless, nobody but us can set this flag */
if (task->jobctl & JOBCTL_LISTENING)
return ret;
+ if (!lock_task_sighand(task, &flags))
+ return ret;
- spin_lock_irq(&task->sighand->siglock);
- if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
+ if (READ_ONCE(task->__state) == TASK_TRACED &&
+ !looks_like_a_spurious_pid(task) &&
!__fatal_signal_pending(task)) {
task->jobctl |= JOBCTL_TRACED_FROZEN;
WRITE_ONCE(task->__state, __TASK_TRACED);
+ WARN_ON_ONCE(!task_is_traced(task));
ret = true;
}
- spin_unlock_irq(&task->sighand->siglock);
+ unlock_task_sighand(task, &flags);
return ret;
}
@@ -253,40 +257,42 @@ static void ptrace_unfreeze_traced(struct task_struct *task)
*/
static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
{
- int ret = -ESRCH;
-
+ int traced;
/*
* We take the read lock around doing both checks to close a
- * possible race where someone else was tracing our child and
- * detached between these two checks. After this locked check,
- * we are sure that this is our traced child and that can only
- * be changed by us so it's not changing right after this.
+ * possible race where someone else attaches or detaches our
+ * natural child.
*/
read_lock(&tasklist_lock);
- if (child->ptrace && child->parent == current) {
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
- /*
- * child->sighand can't be NULL, release_task()
- * does ptrace_unlink() before __exit_signal().
- */
- if (ignore_state || ptrace_freeze_traced(child))
- ret = 0;
- }
+ traced = child->ptrace && child->parent == current;
read_unlock(&tasklist_lock);
- if (!ret && !ignore_state) {
- if (!wait_task_inactive(child, __TASK_TRACED)) {
- /*
- * This can only happen if may_ptrace_stop() fails and
- * ptrace_stop() changes ->state back to TASK_RUNNING,
- * so we should not worry about leaking __TASK_TRACED.
- */
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
- ret = -ESRCH;
+ if (!traced)
+ return -ESRCH;
+
+ WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
+ if (ignore_state)
+ return 0;
+
+ if (!task_is_traced(child))
+ return -ESRCH;
+
+ for (;;) {
+ if (fatal_signal_pending(current))
+ return -EINTR;
+ set_current_state(TASK_KILLABLE);
+ if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED_XXX)) {
+ __set_current_state(TASK_RUNNING);
+ break;
}
+ schedule();
}
- return ret;
+ if (!wait_task_inactive(child, TASK_TRACED) ||
+ !ptrace_freeze_traced(child))
+ return -ESRCH;
+
+ return 0;
}
static bool ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
diff --git a/kernel/signal.c b/kernel/signal.c
index 0aea3f0a8002..c7a89904cc4a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2182,6 +2182,13 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
spin_unlock_irqrestore(&sighand->siglock, flags);
}
+static void clear_traced_xxx(void)
+{
+ spin_lock_irq(¤t->sighand->siglock);
+ current->jobctl &= ~JOBCTL_TRACED_XXX;
+ spin_unlock_irq(¤t->sighand->siglock);
+}
+
/*
* This must be called with current->sighand->siglock held.
*
@@ -2220,7 +2227,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
* schedule() will not sleep if there is a pending signal that
* can awaken the task.
*/
- current->jobctl |= JOBCTL_TRACED;
+ current->jobctl |= JOBCTL_TRACED | JOBCTL_TRACED_XXX;
set_special_state(TASK_TRACED);
/*
@@ -2282,6 +2289,8 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
if (gstop_done && ptrace_reparented(current))
do_notify_parent_cldstop(current, false, why);
+ clear_traced_xxx();
+ wake_up_state(current->parent, TASK_KILLABLE);
/*
* Don't want to allow preemption here, because
* sys_ptrace() needs this task to be inactive.
@@ -2297,8 +2306,12 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
} else {
/*
* By the time we got the lock, our tracer went away.
- * Don't drop the lock yet, another tracer may come.
- *
+ * Don't drop the lock yet, another tracer may come,
+ * tasklist protects us from ptrace_freeze_traced().
+ */
+ __set_current_state(TASK_RUNNING);
+ clear_traced_xxx();
+ /*
* If @gstop_done, the ptracer went away between group stop
* completion and here. During detach, it would have set
* JOBCTL_STOP_PENDING on us and we'll re-enter
@@ -2307,13 +2320,11 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
*/
if (gstop_done)
do_notify_parent_cldstop(current, false, why);
+ read_unlock(&tasklist_lock);
- /* tasklist protects us from ptrace_freeze_traced() */
- __set_current_state(TASK_RUNNING);
read_code = false;
if (clear_code)
exit_code = 0;
- read_unlock(&tasklist_lock);
}
/*
^ permalink raw reply related [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-18 17:01 ` Oleg Nesterov
@ 2022-04-18 17:19 ` Oleg Nesterov
2022-04-20 13:17 ` Peter Zijlstra
1 sibling, 0 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-18 17:19 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/18, Oleg Nesterov wrote:
>
> static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
> {
...
> + if (!traced)
> + return -ESRCH;
> +
> + WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
> + if (ignore_state)
> + return 0;
> +
> + if (!task_is_traced(child))
> + return -ESRCH;
This is the new check V1 didn't have, we need it to unsure that check_attach
can't miss the change in child->jobctl and call wait_task_inactive() before
the child marks itself as "traced" and clears JOBCTL_TRACED_XXX.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-15 10:57 ` Oleg Nesterov
2022-04-15 12:01 ` Peter Zijlstra
@ 2022-04-20 10:20 ` Peter Zijlstra
2022-04-20 11:35 ` Oleg Nesterov
1 sibling, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-20 10:20 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Fri, Apr 15, 2022 at 12:57:56PM +0200, Oleg Nesterov wrote:
> On 04/15, Oleg Nesterov wrote:
> >
> > OK, so far it seems that this patch needs a couple of simple fixes you
> > pointed out, but before I send V2:
> >
> > - do you agree we can avoid JOBCTL_TRACED_FROZEN in 1-2 ?
> >
> > - will you agree if I change ptrace_freeze_traced() to rely
> > on __state == TASK_TRACED rather than task_is_traced() ?
> >
>
> Forgot to say, I think 1/5 needs some changes in any case...
>
> ptrace_resume() does wake_up_state(child, __TASK_TRACED) but doesn't
> clear JOBCTL_TRACED. The "else" branch in ptrace_stop() leaks this flag
> too. Perhaps I missed something, I'll reread 1/5 again, but the main
> question to me is whether 1-2 actually need the JOBCTL_TRACED_FROZEN flag.
Ok, getting back to this. So I did the change to ptrace_resume(), but
I'm not entirely sure I understand the issue with the else branch of
ptrace_stop().
My understanding is that if we hit that else branch, we've raced wth
__ptrace_unlink(), and that will have done:
if (... || task_is_traced(child))
ptrace_signal_wake_up(child, true);
Which will have done that wakeup and cleared both __state and jobctl.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-20 10:20 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
@ 2022-04-20 11:35 ` Oleg Nesterov
0 siblings, 0 replies; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-20 11:35 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/20, Peter Zijlstra wrote:
>
> On Fri, Apr 15, 2022 at 12:57:56PM +0200, Oleg Nesterov wrote:
> >
> > ptrace_resume() does wake_up_state(child, __TASK_TRACED) but doesn't
> > clear JOBCTL_TRACED. The "else" branch in ptrace_stop() leaks this flag
> > too. Perhaps I missed something, I'll reread 1/5 again, but the main
> > question to me is whether 1-2 actually need the JOBCTL_TRACED_FROZEN flag.
>
> Ok, getting back to this. So I did the change to ptrace_resume(), but
> I'm not entirely sure I understand the issue with the else branch of
> ptrace_stop().
>
> My understanding is that if we hit that else branch, we've raced wth
> __ptrace_unlink(), and that will have done:
Yes, thanks for correcting me, I forgot that may_ptrace_stop() has gone.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-18 17:01 ` Oleg Nesterov
2022-04-18 17:19 ` Oleg Nesterov
@ 2022-04-20 13:17 ` Peter Zijlstra
2022-04-20 18:03 ` Oleg Nesterov
1 sibling, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-20 13:17 UTC (permalink / raw)
To: Oleg Nesterov
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On Mon, Apr 18, 2022 at 07:01:05PM +0200, Oleg Nesterov wrote:
> diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
> index ec8b312f7506..1b5a57048e13 100644
> --- a/include/linux/sched/jobctl.h
> +++ b/include/linux/sched/jobctl.h
> @@ -22,7 +22,8 @@ struct task_struct;
>
> #define JOBCTL_STOPPED_BIT 24
> #define JOBCTL_TRACED_BIT 25
> +#define JOBCTL_TRACED_XXX_BIT 25
26, also we must come up with a better name than tripple-x. In my head
it's started to be called TRACED_OLEG, but that can't be right either
;-)
Does something like:
#define JOBCTL_TRACED_BIT 25
#define JOBCTL_TRACED_QUIESCE_BIT 26
work?
> diff --git a/kernel/signal.c b/kernel/signal.c
> index 0aea3f0a8002..c7a89904cc4a 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -2182,6 +2182,13 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
> spin_unlock_irqrestore(&sighand->siglock, flags);
> }
>
> +static void clear_traced_xxx(void)
> +{
> + spin_lock_irq(¤t->sighand->siglock);
> + current->jobctl &= ~JOBCTL_TRACED_XXX;
> + spin_unlock_irq(¤t->sighand->siglock);
> +}
> +
> /*
> * This must be called with current->sighand->siglock held.
> *
> @@ -2220,7 +2227,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> * schedule() will not sleep if there is a pending signal that
> * can awaken the task.
> */
> - current->jobctl |= JOBCTL_TRACED;
> + current->jobctl |= JOBCTL_TRACED | JOBCTL_TRACED_XXX;
> set_special_state(TASK_TRACED);
>
> /*
> @@ -2282,6 +2289,8 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> if (gstop_done && ptrace_reparented(current))
> do_notify_parent_cldstop(current, false, why);
>
> + clear_traced_xxx();
> + wake_up_state(current->parent, TASK_KILLABLE);
> /*
> * Don't want to allow preemption here, because
> * sys_ptrace() needs this task to be inactive.
> @@ -2297,8 +2306,12 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
> } else {
> /*
> * By the time we got the lock, our tracer went away.
> - * Don't drop the lock yet, another tracer may come.
> - *
> + * Don't drop the lock yet, another tracer may come,
> + * tasklist protects us from ptrace_freeze_traced().
> + */
> + __set_current_state(TASK_RUNNING);
> + clear_traced_xxx();
> + /*
> * If @gstop_done, the ptracer went away between group stop
> * completion and here. During detach, it would have set
> * JOBCTL_STOP_PENDING on us and we'll re-enter
This is that same else clause again; perhaps make signal_wake_up_state()
also clear TRACED_XXX instead?
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT
2022-04-20 13:17 ` Peter Zijlstra
@ 2022-04-20 18:03 ` Oleg Nesterov
2022-04-20 20:54 ` [RFC][PATCH] ptrace: Don't change __state Eric W. Biederman
0 siblings, 1 reply; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-20 18:03 UTC (permalink / raw)
To: Peter Zijlstra
Cc: rjw, mingo, vincent.guittot, dietmar.eggemann, rostedt, mgorman,
ebiederm, bigeasy, Will Deacon, linux-kernel, tj, linux-pm
On 04/20, Peter Zijlstra wrote:
>
> Does something like:
>
> #define JOBCTL_TRACED_BIT 25
> #define JOBCTL_TRACED_QUIESCE_BIT 26
>
> work?
Agreed! ;)
> > } else {
> > /*
> > * By the time we got the lock, our tracer went away.
> > - * Don't drop the lock yet, another tracer may come.
> > - *
> > + * Don't drop the lock yet, another tracer may come,
> > + * tasklist protects us from ptrace_freeze_traced().
> > + */
> > + __set_current_state(TASK_RUNNING);
> > + clear_traced_xxx();
> > + /*
> > * If @gstop_done, the ptracer went away between group stop
> > * completion and here. During detach, it would have set
> > * JOBCTL_STOP_PENDING on us and we'll re-enter
>
> This is that same else clause again; perhaps make signal_wake_up_state()
> also clear TRACED_XXX instead?
I swear, I too thought about this after my last email. Yes, I think this
makes sense. Thanks,
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* [RFC][PATCH] ptrace: Don't change __state
2022-04-20 18:03 ` Oleg Nesterov
@ 2022-04-20 20:54 ` Eric W. Biederman
2022-04-21 7:21 ` Peter Zijlstra
` (2 more replies)
0 siblings, 3 replies; 38+ messages in thread
From: Eric W. Biederman @ 2022-04-20 20:54 UTC (permalink / raw)
To: Oleg Nesterov
Cc: Peter Zijlstra, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
I was thinking about this and I have an approach from a different
direction. In particular it removes the need for ptrace_freeze_attach
and ptrace_unfreeze_attach to change __state. Instead a jobctl
bit is used to suppress waking up a process with TASK_WAKEKILL.
I think this would be a good technique to completely decouple
PREEMPT_RT from the work that ptrace_freeze_attach does.
Comments?
Eric
---
The games ptrace_freeze_traced and ptrace_unfreeze_traced have
been playing with __state to remove TASK_WAKEKILL from __state
while a ptrace command is executing.
Instead add JOBCTL_DELAY_WAKEILL and set it in ptrace_freeze_task and
clear it in ptrace_unfreeze_task and the final exit of ptrace_stop.
Then in signal_wake_up_state drop TASK_WAKEKILL if it is sent while
JOBCTL_DELAY_WAKEKILL is set.
As signal_wake_up is the only function that sets TASK_WAKEKILL when
waking a process this achives the same effect with less messing
with state.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
As a proof of concept this seems to work most of the time,
unfortunately I have a bug somewhere (a memory stomp?) and I am
hitting a BUG_ON that asserts __send_signal is not holding
the siglock.
[ 97.000168] ------------[ cut here ]------------
[ 97.001782] kernel BUG at kernel/signal.c:1086!
[ 97.002539] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[ 97.002846] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.18.0-rc1userns+ #449
[ 97.003135] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
[ 97.003480] RIP: 0010:__send_signal+0x256/0x580
[ 97.003812] Code: f0 ff ff 49 89 c7 48 85 c0 0f 85 a8 fe ff ff 41 bf 04 00 00 00 44 8d 45 ff e9 f8 fe ff ff 45 31 ff 40
[ 97.003812] RSP: 0018:ffffc900000c8e88 EFLAGS: 00000046
[ 97.003812] RAX: 0000000000000000 RBX: ffff88800875df00 RCX: 0000000000000001
[ 97.003812] RDX: ffff88800875df00 RSI: 0000000000000001 RDI: 000000000000000e
[ 97.003812] RBP: 000000000000000e R08: 0000000000000001 R09: 0000000000000000
[ 97.003812] R10: 0000000000000000 R11: ffffc900000c8ff8 R12: 0000000000000000
[ 97.003812] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8115f3f3
[ 97.003812] FS: 0000000000000000(0000) GS:ffff8880bcb00000(0000) knlGS:0000000000000000
[ 97.003812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 97.003812] CR2: 00007ffff739c830 CR3: 00000000094d6000 CR4: 00000000000006e0
[ 97.003812] Call Trace:
[ 97.003812] <IRQ>
[ 97.003812] group_send_sig_info+0xe1/0x190
[ 97.003812] kill_pid_info+0x78/0x150
[ 97.003812] it_real_fn+0x35/0xe0
[ 97.003812] ? __x64_sys_setitimer+0x150/0x150
[ 97.003812] __hrtimer_run_queues+0x1ca/0x3f0
[ 97.003812] hrtimer_interrupt+0x106/0x220
[ 97.003812] __sysvec_apic_timer_interrupt+0x96/0x260
[ 97.003812] sysvec_apic_timer_interrupt+0x9d/0xd0
[ 97.003812] </IRQ>
[ 97.003812] <TASK>
[ 97.003812] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 97.003812] RIP: 0010:default_idle+0x10/0x20
[ 97.003812] Code: 8b 04 25 00 b0 01 00 f0 80 60 02 df c3 0f ae f0 0f ae 38 0f ae f0 eb b9 66 90 0f 1f 44 00 00 eb 07 03
[ 97.003812] RSP: 0018:ffffc90000093ef8 EFLAGS: 00000246
[ 97.003812] RAX: ffffffff823fafb0 RBX: ffff8880056f97c0 RCX: 0000000000000000
[ 97.003812] RDX: ffffffff81193e1d RSI: ffffffff82da5301 RDI: ffffffff823fb111
[ 97.003812] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 97.003812] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[ 97.003812] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 97.003812] ? mwait_idle+0x70/0x70
[ 97.003812] ? nohz_balance_enter_idle+0x6d/0x220
[ 97.003812] ? default_idle_call+0x21/0x90
[ 97.003812] ? mwait_idle+0x70/0x70
[ 97.003812] default_idle_call+0x59/0x90
[ 97.003812] do_idle+0x1f3/0x260
[ 97.003812] ? finish_task_switch.isra.0+0xef/0x350
[ 97.003812] cpu_startup_entry+0x19/0x20
[ 97.003812] secondary_startup_64_no_verify+0xc3/0xcb
[ 97.003812] </TASK>
[ 97.003812] Modules linked in:
[ 97.003812] ---[ end trace 0000000000000000 ]---
[ 97.003812] RIP: 0010:__send_signal+0x256/0x580
[ 97.003812] Code: f0 ff ff 49 89 c7 48 85 c0 0f 85 a8 fe ff ff 41 bf 04 00 00 00 44 8d 45 ff e9 f8 fe ff ff 45 31 ff 40
[ 97.003812] RSP: 0018:ffffc900000c8e88 EFLAGS: 00000046
[ 97.003812] RAX: 0000000000000000 RBX: ffff88800875df00 RCX: 0000000000000001
[ 97.003812] RDX: ffff88800875df00 RSI: 0000000000000001 RDI: 000000000000000e
[ 97.003812] RBP: 000000000000000e R08: 0000000000000001 R09: 0000000000000000
[ 97.003812] R10: 0000000000000000 R11: ffffc900000c8ff8 R12: 0000000000000000
[ 97.003812] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8115f3f3
[ 97.003812] FS: 0000000000000000(0000) GS:ffff8880bcb00000(0000) knlGS:0000000000000000
[ 97.003812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 97.003812] CR2: 00007ffff739c830 CR3: 00000000094d6000 CR4: 00000000000006e0
[ 97.003812] Kernel panic - not syncing: Fatal exception in interrupt
[ 97.003812] Kernel Offset: disabled
[ 97.003812] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---
---
include/linux/sched/jobctl.h | 2 ++
kernel/ptrace.c | 32 ++++++++++++++------------------
kernel/signal.c | 5 +++++
3 files changed, 21 insertions(+), 18 deletions(-)
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index fa067de9f1a9..4e154ad8205f 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -19,6 +19,7 @@ struct task_struct;
#define JOBCTL_TRAPPING_BIT 21 /* switching to TRACED */
#define JOBCTL_LISTENING_BIT 22 /* ptracer is listening for events */
#define JOBCTL_TRAP_FREEZE_BIT 23 /* trap for cgroup freezer */
+#define JOBCTL_DELAY_WAKEKILL_BIT 24 /* delay killable wakeups */
#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
@@ -28,6 +29,7 @@ struct task_struct;
#define JOBCTL_TRAPPING (1UL << JOBCTL_TRAPPING_BIT)
#define JOBCTL_LISTENING (1UL << JOBCTL_LISTENING_BIT)
#define JOBCTL_TRAP_FREEZE (1UL << JOBCTL_TRAP_FREEZE_BIT)
+#define JOBCTL_DELAY_WAKEKILL (1UL << JOBCTL_DELAY_WAKEKILL_BIT)
#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
#define JOBCTL_PENDING_MASK (JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 4f78d0d5940c..a55320a0e8e3 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -197,7 +197,8 @@ static bool ptrace_freeze_traced(struct task_struct *task)
spin_lock_irq(&task->sighand->siglock);
if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
!__fatal_signal_pending(task)) {
- WRITE_ONCE(task->__state, __TASK_TRACED);
+ //WARN_ON((task->jobctl & JOBCTL_DELAY_WAKEKILL));
+ task->jobctl |= JOBCTL_DELAY_WAKEKILL;
ret = true;
}
spin_unlock_irq(&task->sighand->siglock);
@@ -207,7 +208,7 @@ static bool ptrace_freeze_traced(struct task_struct *task)
static void ptrace_unfreeze_traced(struct task_struct *task)
{
- if (READ_ONCE(task->__state) != __TASK_TRACED)
+ if (!task_is_traced(task))
return;
WARN_ON(!task->ptrace || task->parent != current);
@@ -216,13 +217,11 @@ static void ptrace_unfreeze_traced(struct task_struct *task)
* PTRACE_LISTEN can allow ptrace_trap_notify to wake us up remotely.
* Recheck state under the lock to close this race.
*/
- spin_lock_irq(&task->sighand->siglock);
- if (READ_ONCE(task->__state) == __TASK_TRACED) {
- if (__fatal_signal_pending(task))
- wake_up_state(task, __TASK_TRACED);
- else
- WRITE_ONCE(task->__state, TASK_TRACED);
- }
+ spin_unlock_irq(&task->sighand->siglock);
+ WARN_ON(!(task->jobctl & JOBCTL_DELAY_WAKEKILL));
+ task->jobctl &= ~JOBCTL_DELAY_WAKEKILL;
+ if (fatal_signal_pending(task))
+ wake_up_state(task, TASK_WAKEKILL);
spin_unlock_irq(&task->sighand->siglock);
}
@@ -256,7 +255,7 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
*/
read_lock(&tasklist_lock);
if (child->ptrace && child->parent == current) {
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
+ WARN_ON(child->jobctl & JOBCTL_DELAY_WAKEKILL);
/*
* child->sighand can't be NULL, release_task()
* does ptrace_unlink() before __exit_signal().
@@ -267,13 +266,13 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
read_unlock(&tasklist_lock);
if (!ret && !ignore_state) {
- if (!wait_task_inactive(child, __TASK_TRACED)) {
+ if (!wait_task_inactive(child, TASK_TRACED)) {
/*
* This can only happen if may_ptrace_stop() fails and
* ptrace_stop() changes ->state back to TASK_RUNNING,
- * so we should not worry about leaking __TASK_TRACED.
+ * so we should not worry about leaking JOBCTL_DELAY_WAKEKILL.
*/
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
+ WARN_ON(!(child->jobctl & JOBCTL_DELAY_WAKEKILL));
ret = -ESRCH;
}
}
@@ -892,7 +891,6 @@ static int ptrace_resume(struct task_struct *child, long request,
* status and clears the code too; this can't race with the tracee, it
* takes siglock after resume.
*/
- need_siglock = data && !thread_group_empty(current);
if (need_siglock)
spin_lock_irq(&child->sighand->siglock);
child->exit_code = data;
@@ -1325,8 +1323,7 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
goto out_put_task_struct;
ret = arch_ptrace(child, request, addr, data);
- if (ret || request != PTRACE_DETACH)
- ptrace_unfreeze_traced(child);
+ ptrace_unfreeze_traced(child);
out_put_task_struct:
put_task_struct(child);
@@ -1468,8 +1465,7 @@ COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
request == PTRACE_INTERRUPT);
if (!ret) {
ret = compat_arch_ptrace(child, request, addr, data);
- if (ret || request != PTRACE_DETACH)
- ptrace_unfreeze_traced(child);
+ ptrace_unfreeze_traced(child);
}
out_put_task_struct:
diff --git a/kernel/signal.c b/kernel/signal.c
index 30cd1ca43bcd..a1277580c92e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -762,6 +762,10 @@ static int dequeue_synchronous_signal(kernel_siginfo_t *info)
*/
void signal_wake_up_state(struct task_struct *t, unsigned int state)
{
+ /* Suppress wakekill? */
+ if (t->jobctl & JOBCTL_DELAY_WAKEKILL)
+ state &= ~TASK_WAKEKILL;
+
set_tsk_thread_flag(t, TIF_SIGPENDING);
/*
* TASK_WAKEKILL also means wake it up in the stopped/traced/killable
@@ -2328,6 +2332,7 @@ static int ptrace_stop(int exit_code, int why, int clear_code,
/* LISTENING can be set only during STOP traps, clear it */
current->jobctl &= ~JOBCTL_LISTENING;
+ current->jobctl &= ~JOBCTL_DELAY_WAKEKILL;
/*
* Queued signals ignored us while we were stopped for tracing.
--
2.35.3
^ permalink raw reply related [flat|nested] 38+ messages in thread
* Re: [RFC][PATCH] ptrace: Don't change __state
2022-04-20 20:54 ` [RFC][PATCH] ptrace: Don't change __state Eric W. Biederman
@ 2022-04-21 7:21 ` Peter Zijlstra
2022-04-21 10:26 ` Peter Zijlstra
2022-04-21 14:45 ` Eric W. Biederman
2022-04-21 9:46 ` Oleg Nesterov
2022-04-27 0:51 ` [ptrace] [confidence: ] 7d3fafb751: BUG:sleeping_function_called_from_invalid_context_at_arch/x86/entry/common.c kernel test robot
2 siblings, 2 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-21 7:21 UTC (permalink / raw)
To: Eric W. Biederman
Cc: Oleg Nesterov, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
On Wed, Apr 20, 2022 at 03:54:15PM -0500, Eric W. Biederman wrote:
>
> I was thinking about this and I have an approach from a different
> direction. In particular it removes the need for ptrace_freeze_attach
> and ptrace_unfreeze_attach to change __state. Instead a jobctl
> bit is used to suppress waking up a process with TASK_WAKEKILL.
>
> I think this would be a good technique to completely decouple
> PREEMPT_RT from the work that ptrace_freeze_attach does.
>
> Comments?
On first read-through, I like it! A few comments down below..
> @@ -216,13 +217,11 @@ static void ptrace_unfreeze_traced(struct task_struct *task)
> * PTRACE_LISTEN can allow ptrace_trap_notify to wake us up remotely.
> * Recheck state under the lock to close this race.
> */
> - spin_lock_irq(&task->sighand->siglock);
> - if (READ_ONCE(task->__state) == __TASK_TRACED) {
> - if (__fatal_signal_pending(task))
> - wake_up_state(task, __TASK_TRACED);
> - else
> - WRITE_ONCE(task->__state, TASK_TRACED);
> - }
> + spin_unlock_irq(&task->sighand->siglock);
^^^^ this should be spin_lock_irq(...)
> + WARN_ON(!(task->jobctl & JOBCTL_DELAY_WAKEKILL));
> + task->jobctl &= ~JOBCTL_DELAY_WAKEKILL;
> + if (fatal_signal_pending(task))
> + wake_up_state(task, TASK_WAKEKILL);
> spin_unlock_irq(&task->sighand->siglock);
> }
>
> @@ -256,7 +255,7 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
> */
> read_lock(&tasklist_lock);
> if (child->ptrace && child->parent == current) {
> - WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
> + WARN_ON(child->jobctl & JOBCTL_DELAY_WAKEKILL);
> /*
> * child->sighand can't be NULL, release_task()
> * does ptrace_unlink() before __exit_signal().
> @@ -267,13 +266,13 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
> read_unlock(&tasklist_lock);
>
> if (!ret && !ignore_state) {
> - if (!wait_task_inactive(child, __TASK_TRACED)) {
> + if (!wait_task_inactive(child, TASK_TRACED)) {
This is still very dubious, there are spinlocks between
set_current_state(TASK_TRACED) and schedule(), so wait_task_inactive()
can fail where we don't want it to due to TASK_TRACED being temporarily
held in ->saved_state.
> /*
> * This can only happen if may_ptrace_stop() fails and
> * ptrace_stop() changes ->state back to TASK_RUNNING,
> - * so we should not worry about leaking __TASK_TRACED.
> + * so we should not worry about leaking JOBCTL_DELAY_WAKEKILL.
> */
> + WARN_ON(!(child->jobctl & JOBCTL_DELAY_WAKEKILL));
> ret = -ESRCH;
> }
> }
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [RFC][PATCH] ptrace: Don't change __state
2022-04-20 20:54 ` [RFC][PATCH] ptrace: Don't change __state Eric W. Biederman
2022-04-21 7:21 ` Peter Zijlstra
@ 2022-04-21 9:46 ` Oleg Nesterov
2022-04-21 15:01 ` Eric W. Biederman
2022-04-27 0:51 ` [ptrace] [confidence: ] 7d3fafb751: BUG:sleeping_function_called_from_invalid_context_at_arch/x86/entry/common.c kernel test robot
2 siblings, 1 reply; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-21 9:46 UTC (permalink / raw)
To: Eric W. Biederman
Cc: Peter Zijlstra, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
On 04/20, Eric W. Biederman wrote:
>
> I was thinking about this and I have an approach from a different
> direction. In particular it removes the need for ptrace_freeze_attach
> and ptrace_unfreeze_attach to change __state. Instead a jobctl
> bit is used to suppress waking up a process with TASK_WAKEKILL.
I think this can work, but we still need something like 1/5 + 2/5?
> I think this would be a good technique to completely decouple
> PREEMPT_RT from the work that ptrace_freeze_attach does.
If CONFIG_RT=y we can't rely on the ->__state check in task_is_traced(),
and wait_task_inactive() can wrongly fail if the tracee sleeps waiting
for tasklist_lock.
A couple of comments after a quick glance,
> static void ptrace_unfreeze_traced(struct task_struct *task)
> {
> - if (READ_ONCE(task->__state) != __TASK_TRACED)
> + if (!task_is_traced(task))
> return;
>
> WARN_ON(!task->ptrace || task->parent != current);
> @@ -216,13 +217,11 @@ static void ptrace_unfreeze_traced(struct task_struct *task)
> * PTRACE_LISTEN can allow ptrace_trap_notify to wake us up remotely.
> * Recheck state under the lock to close this race.
> */
> - spin_lock_irq(&task->sighand->siglock);
> - if (READ_ONCE(task->__state) == __TASK_TRACED) {
> - if (__fatal_signal_pending(task))
> - wake_up_state(task, __TASK_TRACED);
> - else
> - WRITE_ONCE(task->__state, TASK_TRACED);
> - }
> + spin_unlock_irq(&task->sighand->siglock);
> + WARN_ON(!(task->jobctl & JOBCTL_DELAY_WAKEKILL));
> + task->jobctl &= ~JOBCTL_DELAY_WAKEKILL;
We can't rely on the lockless task_is_traced() check above... probably this
is fine, but I need to re-chesk. But at least you need to remove the comment
about PTRACE_LISTEN above.
Another problem is that WARN_ON(!(task->jobctl & JOBCTL_DELAY_WAKEKILL))
doesn't look right if ignore_state in ptrace_check_attach() was true, the
tracee could stop before ptrace_unfreeze_traced().
> @@ -892,7 +891,6 @@ static int ptrace_resume(struct task_struct *child, long request,
> * status and clears the code too; this can't race with the tracee, it
> * takes siglock after resume.
> */
> - need_siglock = data && !thread_group_empty(current);
> if (need_siglock)
> spin_lock_irq(&child->sighand->siglock);
Hmm?
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [RFC][PATCH] ptrace: Don't change __state
2022-04-21 7:21 ` Peter Zijlstra
@ 2022-04-21 10:26 ` Peter Zijlstra
2022-04-21 10:49 ` Oleg Nesterov
2022-04-21 14:45 ` Eric W. Biederman
1 sibling, 1 reply; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-21 10:26 UTC (permalink / raw)
To: Eric W. Biederman
Cc: Oleg Nesterov, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
On Thu, Apr 21, 2022 at 09:21:38AM +0200, Peter Zijlstra wrote:
> > @@ -267,13 +266,13 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
> > read_unlock(&tasklist_lock);
> >
> > if (!ret && !ignore_state) {
> > - if (!wait_task_inactive(child, __TASK_TRACED)) {
> > + if (!wait_task_inactive(child, TASK_TRACED)) {
>
> This is still very dubious, there are spinlocks between
> set_current_state(TASK_TRACED) and schedule(), so wait_task_inactive()
> can fail where we don't want it to due to TASK_TRACED being temporarily
> held in ->saved_state.
As such, I've taken the liberty of munging yours and Oleg's approach
together. I've yet to actually test this but it looks feasible.
---
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -19,9 +19,11 @@ struct task_struct;
#define JOBCTL_TRAPPING_BIT 21 /* switching to TRACED */
#define JOBCTL_LISTENING_BIT 22 /* ptracer is listening for events */
#define JOBCTL_TRAP_FREEZE_BIT 23 /* trap for cgroup freezer */
+#define JOBCTL_DELAY_WAKEKILL_BIT 24 /* delay killable wakeups */
-#define JOBCTL_STOPPED_BIT 24
-#define JOBCTL_TRACED_BIT 25
+#define JOBCTL_STOPPED_BIT 25
+#define JOBCTL_TRACED_BIT 26
+#define JOBCTL_TRACED_QUIESCE_BIT 27
#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
@@ -31,9 +33,11 @@ struct task_struct;
#define JOBCTL_TRAPPING (1UL << JOBCTL_TRAPPING_BIT)
#define JOBCTL_LISTENING (1UL << JOBCTL_LISTENING_BIT)
#define JOBCTL_TRAP_FREEZE (1UL << JOBCTL_TRAP_FREEZE_BIT)
+#define JOBCTL_DELAY_WAKEKILL (1UL << JOBCTL_DELAY_WAKEKILL_BIT)
#define JOBCTL_STOPPED (1UL << JOBCTL_STOPPED_BIT)
#define JOBCTL_TRACED (1UL << JOBCTL_TRACED_BIT)
+#define JOBCTL_TRACED_QUIESCE (1UL << JOBCTL_TRACED_QUIESCE_BIT)
#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
#define JOBCTL_PENDING_MASK (JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -193,26 +193,32 @@ static bool looks_like_a_spurious_pid(st
*/
static bool ptrace_freeze_traced(struct task_struct *task)
{
+ unsigned long flags;
bool ret = false;
/* Lockless, nobody but us can set this flag */
if (task->jobctl & JOBCTL_LISTENING)
return ret;
- spin_lock_irq(&task->sighand->siglock);
- if (task_is_traced(task) && !looks_like_a_spurious_pid(task) &&
+ if (!lock_task_sighand(task, &flags))
+ return ret;
+
+ if (READ_ONCE(task->__state) == TASK_TRACED &&
+ !looks_like_a_spurious_pid(task) &&
!__fatal_signal_pending(task)) {
- WRITE_ONCE(task->__state, __TASK_TRACED);
+ WARN_ON_ONCE(!task_is_traced(task));
+ WARN_ON_ONCE(task->jobctl & JOBCTL_DELAY_WAKEKILL);
+ task->jobctl |= JOBCTL_DELAY_WAKEKILL;
ret = true;
}
- spin_unlock_irq(&task->sighand->siglock);
+ unlock_task_sighand(task, &flags);
return ret;
}
static void ptrace_unfreeze_traced(struct task_struct *task)
{
- if (READ_ONCE(task->__state) != __TASK_TRACED)
+ if (!task_is_traced(task))
return;
WARN_ON(!task->ptrace || task->parent != current);
@@ -222,12 +228,11 @@ static void ptrace_unfreeze_traced(struc
* Recheck state under the lock to close this race.
*/
spin_lock_irq(&task->sighand->siglock);
- if (READ_ONCE(task->__state) == __TASK_TRACED) {
- if (__fatal_signal_pending(task)) {
- task->jobctl &= ~JOBCTL_TRACED;
- wake_up_state(task, __TASK_TRACED);
- } else
- WRITE_ONCE(task->__state, TASK_TRACED);
+// WARN_ON_ONCE(!(task->jobctl & JOBCTL_DELAY_WAKEKILL));
+ task->jobctl &= ~JOBCTL_DELAY_WAKEKILL;
+ if (__fatal_signal_pending(task)) {
+ task->jobctl &= ~JOBCTL_TRACED;
+ wake_up_state(task, TASK_WAKEKILL);
}
spin_unlock_irq(&task->sighand->siglock);
}
@@ -251,40 +256,46 @@ static void ptrace_unfreeze_traced(struc
*/
static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
{
- int ret = -ESRCH;
+ int traced;
/*
* We take the read lock around doing both checks to close a
- * possible race where someone else was tracing our child and
- * detached between these two checks. After this locked check,
- * we are sure that this is our traced child and that can only
- * be changed by us so it's not changing right after this.
+ * possible race where someone else attaches or detaches our
+ * natural child.
*/
read_lock(&tasklist_lock);
- if (child->ptrace && child->parent == current) {
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
- /*
- * child->sighand can't be NULL, release_task()
- * does ptrace_unlink() before __exit_signal().
- */
- if (ignore_state || ptrace_freeze_traced(child))
- ret = 0;
- }
+ traced = child->ptrace && child->parent == current;
read_unlock(&tasklist_lock);
+ if (!traced)
+ return -ESRCH;
- if (!ret && !ignore_state) {
- if (!wait_task_inactive(child, __TASK_TRACED)) {
- /*
- * This can only happen if may_ptrace_stop() fails and
- * ptrace_stop() changes ->state back to TASK_RUNNING,
- * so we should not worry about leaking __TASK_TRACED.
- */
- WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
- ret = -ESRCH;
- }
+ WARN_ON_ONCE(READ_ONCE(child->__state) == __TASK_TRACED);
+ WARN_ON_ONCE(READ_ONCE(child->jobctl) & JOBCTL_DELAY_WAKEKILL);
+
+ if (ignore_state)
+ return 0;
+
+ if (!task_is_traced(child))
+ return -ESRCH;
+
+ /* wait for JOBCTL_TRACED_QUIESCE to go away, see ptrace_stop() */
+ for (;;) {
+ if (fatal_signal_pending(current))
+ return -EINTR;
+
+ set_current_state(TASK_KILLABLE);
+ if (!(READ_ONCE(child->jobctl) & JOBCTL_TRACED_QUIESCE))
+ break;
+
+ schedule();
}
+ __set_current_state(TASK_RUNNING);
- return ret;
+ if (!wait_task_inactive(child, TASK_TRACED) ||
+ !ptrace_freeze_traced(child))
+ return -ESRCH;
+
+ return 0;
}
static bool ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
@@ -1329,8 +1340,7 @@ SYSCALL_DEFINE4(ptrace, long, request, l
goto out_put_task_struct;
ret = arch_ptrace(child, request, addr, data);
- if (ret || request != PTRACE_DETACH)
- ptrace_unfreeze_traced(child);
+ ptrace_unfreeze_traced(child);
out_put_task_struct:
put_task_struct(child);
@@ -1472,8 +1482,7 @@ COMPAT_SYSCALL_DEFINE4(ptrace, compat_lo
request == PTRACE_INTERRUPT);
if (!ret) {
ret = compat_arch_ptrace(child, request, addr, data);
- if (ret || request != PTRACE_DETACH)
- ptrace_unfreeze_traced(child);
+ ptrace_unfreeze_traced(child);
}
out_put_task_struct:
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -764,6 +764,10 @@ void signal_wake_up_state(struct task_st
{
lockdep_assert_held(&t->sighand->siglock);
+ /* Suppress wakekill? */
+ if (t->jobctl & JOBCTL_DELAY_WAKEKILL)
+ state &= ~TASK_WAKEKILL;
+
set_tsk_thread_flag(t, TIF_SIGPENDING);
/*
@@ -774,7 +778,7 @@ void signal_wake_up_state(struct task_st
* handle its death signal.
*/
if (wake_up_state(t, state | TASK_INTERRUPTIBLE))
- t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED);
+ t->jobctl &= ~(JOBCTL_STOPPED | JOBCTL_TRACED | JOBCTL_TRACED_QUIESCE);
else
kick_process(t);
}
@@ -2187,6 +2191,15 @@ static void do_notify_parent_cldstop(str
spin_unlock_irqrestore(&sighand->siglock, flags);
}
+static void clear_traced_quiesce(void)
+{
+ spin_lock_irq(¤t->sighand->siglock);
+ WARN_ON_ONCE(!(current->jobctl & JOBCTL_TRACED_QUIESCE));
+ current->jobctl &= ~JOBCTL_TRACED_QUIESCE;
+ wake_up_state(current->parent, TASK_KILLABLE);
+ spin_unlock_irq(¤t->sighand->siglock);
+}
+
/*
* This must be called with current->sighand->siglock held.
*
@@ -2225,7 +2238,7 @@ static int ptrace_stop(int exit_code, in
* schedule() will not sleep if there is a pending signal that
* can awaken the task.
*/
- current->jobctl |= JOBCTL_TRACED;
+ current->jobctl |= JOBCTL_TRACED | JOBCTL_TRACED_QUIESCE;
set_special_state(TASK_TRACED);
/*
@@ -2290,14 +2303,26 @@ static int ptrace_stop(int exit_code, in
/*
* Don't want to allow preemption here, because
* sys_ptrace() needs this task to be inactive.
- *
- * XXX: implement read_unlock_no_resched().
*/
preempt_disable();
read_unlock(&tasklist_lock);
- cgroup_enter_frozen();
+ cgroup_enter_frozen(); // XXX broken on PREEMPT_RT !!!
+
+ /*
+ * JOBCTL_TRACE_QUIESCE bridges the gap between
+ * set_current_state(TASK_TRACED) above and schedule() below.
+ * There must not be any blocking (specifically anything that
+ * touched ->saved_state on PREEMPT_RT) between here and
+ * schedule().
+ *
+ * ptrace_check_attach() relies on this with its
+ * wait_task_inactive() usage.
+ */
+ clear_traced_quiesce();
+
preempt_enable_no_resched();
freezable_schedule();
+
cgroup_leave_frozen(true);
} else {
/*
@@ -2335,6 +2360,7 @@ static int ptrace_stop(int exit_code, in
/* LISTENING can be set only during STOP traps, clear it */
current->jobctl &= ~JOBCTL_LISTENING;
+ current->jobctl &= ~JOBCTL_DELAY_WAKEKILL;
/*
* Queued signals ignored us while we were stopped for tracing.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [RFC][PATCH] ptrace: Don't change __state
2022-04-21 10:26 ` Peter Zijlstra
@ 2022-04-21 10:49 ` Oleg Nesterov
2022-04-21 11:50 ` Peter Zijlstra
0 siblings, 1 reply; 38+ messages in thread
From: Oleg Nesterov @ 2022-04-21 10:49 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Eric W. Biederman, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
On 04/21, Peter Zijlstra wrote:
>
> As such, I've taken the liberty of munging yours and Oleg's approach
> together. I've yet to actually test this but it looks feasible.
Agreed, but I am a but confused. Is it on top of 1/5? Doesn't look so,
and I can't apply it with or without 1/5. So I am not sure I understand
what exactly it does.
Oleg.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [RFC][PATCH] ptrace: Don't change __state
2022-04-21 10:49 ` Oleg Nesterov
@ 2022-04-21 11:50 ` Peter Zijlstra
0 siblings, 0 replies; 38+ messages in thread
From: Peter Zijlstra @ 2022-04-21 11:50 UTC (permalink / raw)
To: Oleg Nesterov
Cc: Eric W. Biederman, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
On Thu, Apr 21, 2022 at 12:49:43PM +0200, Oleg Nesterov wrote:
> On 04/21, Peter Zijlstra wrote:
> >
> > As such, I've taken the liberty of munging yours and Oleg's approach
> > together. I've yet to actually test this but it looks feasible.
>
> Agreed, but I am a but confused. Is it on top of 1/5? Doesn't look so,
> and I can't apply it with or without 1/5. So I am not sure I understand
> what exactly it does.
Yes, it is on top of a modified 1, I mean to post an updated and tested
series later today.
Basically it does the TRACED_QUIESCE thing from your patch, and then
does the DELAY_WAKEKILL thing from Eric's patch.
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [RFC][PATCH] ptrace: Don't change __state
2022-04-21 7:21 ` Peter Zijlstra
2022-04-21 10:26 ` Peter Zijlstra
@ 2022-04-21 14:45 ` Eric W. Biederman
1 sibling, 0 replies; 38+ messages in thread
From: Eric W. Biederman @ 2022-04-21 14:45 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Oleg Nesterov, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
Peter Zijlstra <peterz@infradead.org> writes:
> On Wed, Apr 20, 2022 at 03:54:15PM -0500, Eric W. Biederman wrote:
>>
>> I was thinking about this and I have an approach from a different
>> direction. In particular it removes the need for ptrace_freeze_attach
>> and ptrace_unfreeze_attach to change __state. Instead a jobctl
>> bit is used to suppress waking up a process with TASK_WAKEKILL.
>>
>> I think this would be a good technique to completely decouple
>> PREEMPT_RT from the work that ptrace_freeze_attach does.
>>
>> Comments?
>
> On first read-through, I like it! A few comments down below..
>
>> @@ -216,13 +217,11 @@ static void ptrace_unfreeze_traced(struct task_struct *task)
>> * PTRACE_LISTEN can allow ptrace_trap_notify to wake us up remotely.
>> * Recheck state under the lock to close this race.
>> */
>> - spin_lock_irq(&task->sighand->siglock);
>> - if (READ_ONCE(task->__state) == __TASK_TRACED) {
>> - if (__fatal_signal_pending(task))
>> - wake_up_state(task, __TASK_TRACED);
>> - else
>> - WRITE_ONCE(task->__state, TASK_TRACED);
>> - }
>> + spin_unlock_irq(&task->sighand->siglock);
>
> ^^^^ this should be spin_lock_irq(...)
Doh!
Thank you for spotting that. That solves my nasty splat in
__send_signal.
>
>> + WARN_ON(!(task->jobctl & JOBCTL_DELAY_WAKEKILL));
>> + task->jobctl &= ~JOBCTL_DELAY_WAKEKILL;
>> + if (fatal_signal_pending(task))
>> + wake_up_state(task, TASK_WAKEKILL);
>> spin_unlock_irq(&task->sighand->siglock);
>> }
>>
>> @@ -256,7 +255,7 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
>> */
>> read_lock(&tasklist_lock);
>> if (child->ptrace && child->parent == current) {
>> - WARN_ON(READ_ONCE(child->__state) == __TASK_TRACED);
>> + WARN_ON(child->jobctl & JOBCTL_DELAY_WAKEKILL);
>> /*
>> * child->sighand can't be NULL, release_task()
>> * does ptrace_unlink() before __exit_signal().
>> @@ -267,13 +266,13 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
>> read_unlock(&tasklist_lock);
>>
>> if (!ret && !ignore_state) {
>> - if (!wait_task_inactive(child, __TASK_TRACED)) {
>> + if (!wait_task_inactive(child, TASK_TRACED)) {
>
> This is still very dubious, there are spinlocks between
> set_current_state(TASK_TRACED) and schedule(), so wait_task_inactive()
> can fail where we don't want it to due to TASK_TRACED being temporarily
> held in ->saved_state.
When it comes to PREEMPT_RT yes.
I think we might be able to remove the wait_task_inactive, I am
not certain what it gets us.
All this change gets us is the removal of playing with __state.
Eric
^ permalink raw reply [flat|nested] 38+ messages in thread
* Re: [RFC][PATCH] ptrace: Don't change __state
2022-04-21 9:46 ` Oleg Nesterov
@ 2022-04-21 15:01 ` Eric W. Biederman
0 siblings, 0 replies; 38+ messages in thread
From: Eric W. Biederman @ 2022-04-21 15:01 UTC (permalink / raw)
To: Oleg Nesterov
Cc: Peter Zijlstra, rjw, mingo, vincent.guittot, dietmar.eggemann,
rostedt, mgorman, bigeasy, Will Deacon, linux-kernel, tj,
linux-pm
Oleg Nesterov <oleg@redhat.com> writes:
> On 04/20, Eric W. Biederman wrote:
>> @@ -892,7 +891,6 @@ static int ptrace_resume(struct task_struct *child, long request,
>> * status and clears the code too; this can't race with the tracee, it
>> * takes siglock after resume.
>> */
>> - need_siglock = data && !thread_group_empty(current);
>> if (need_siglock)
>> spin_lock_irq(&child->sighand->siglock);
>
> Hmm?
A half backed out change (I thought ptrace_resume would need to clear
JOBCTL_DELAY_WAKEKILL) in ptrace_resume. I somehow failed to
restore the need_siglock line.
Eric
^ permalink raw reply [flat|nested] 38+ messages in thread
* [ptrace] [confidence: ] 7d3fafb751: BUG:sleeping_function_called_from_invalid_context_at_arch/x86/entry/common.c
2022-04-20 20:54 ` [RFC][PATCH] ptrace: Don't change __state Eric W. Biederman
2022-04-21 7:21 ` Peter Zijlstra
2022-04-21 9:46 ` Oleg Nesterov
@ 2022-04-27 0:51 ` kernel test robot
2 siblings, 0 replies; 38+ messages in thread
From: kernel test robot @ 2022-04-27 0:51 UTC (permalink / raw)
To: Eric W. Biederman
Cc: 0day robot, LKML, lkp, Oleg Nesterov, Peter Zijlstra, rjw, mingo,
vincent.guittot, dietmar.eggemann, rostedt, mgorman, bigeasy,
Will Deacon, tj, linux-pm
[-- Attachment #1: Type: text/plain, Size: 12807 bytes --]
Greeting,
FYI, we noticed the following commit (built with gcc-11):
commit: 7d3fafb75102c0e8d5282487c2822d0f3b301aa9 ("[RFC][PATCH] ptrace: Don't change __state")
url: https://github.com/intel-lab-lkp/linux/commits/Eric-W-Biederman/ptrace-Don-t-change-__state/20220421-045703
base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git b253435746d9a4a701b5f09211b9c14d3370d0da
patch link: https://lore.kernel.org/lkml/875yn3zdag.fsf_-_@email.froward.int.ebiederm.org
in testcase: boot
on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------------------------------------------+------------+------------+
| | b253435746 | 7d3fafb751 |
+------------------------------------------------------------------------------+------------+------------+
| boot_successes | 29 | 4 |
| boot_failures | 0 | 35 |
| BUG:sleeping_function_called_from_invalid_context_at_arch/x86/entry/common.c | 0 | 35 |
| BUG:scheduling_while_atomic | 0 | 32 |
| WARNING:at_arch/x86/include/asm/uaccess.h:#__do_sys_waitid | 0 | 16 |
| EIP:__do_sys_waitid | 0 | 16 |
| WARNING:at_lib/usercopy.c:#_copy_to_user | 0 | 33 |
| EIP:_copy_to_user | 0 | 33 |
| WARNING:at_lib/usercopy.c:#_copy_from_user | 0 | 16 |
| EIP:_copy_from_user | 0 | 16 |
| WARNING:at_fs/read_write.c:#vfs_write | 0 | 16 |
| EIP:vfs_write | 0 | 16 |
| WARNING:at_arch/x86/include/asm/uaccess.h:#fault_in_readable | 0 | 16 |
| EIP:fault_in_readable | 0 | 16 |
| WARNING:at_arch/x86/include/asm/uaccess.h:#strncpy_from_user | 0 | 17 |
| EIP:strncpy_from_user | 0 | 17 |
| WARNING:at_lib/iov_iter.c:#__import_iovec | 0 | 6 |
| EIP:__import_iovec | 0 | 6 |
| WARNING:at_lib/iov_iter.c:#copyin | 0 | 5 |
| EIP:copyin | 0 | 5 |
| WARNING:at_fs/read_write.c:#vfs_read | 0 | 12 |
| EIP:vfs_read | 0 | 12 |
| WARNING:at_arch/x86/include/asm/uaccess.h:#fault_in_writeable | 0 | 12 |
| EIP:fault_in_writeable | 0 | 12 |
| WARNING:at_net/core/skbuff.c:#skb_release_head_state | 0 | 4 |
| EIP:skb_release_head_state | 0 | 4 |
| WARNING:at_arch/x86/kernel/fpu/signal.c:#copy_fpstate_to_sigframe | 0 | 24 |
| EIP:copy_fpstate_to_sigframe | 0 | 24 |
| WARNING:at_arch/x86/include/asm/uaccess.h:#__setup_frame | 0 | 24 |
| EIP:__setup_frame | 0 | 24 |
| WARNING:at_arch/x86/kernel/signal.c:#__do_sys_sigreturn | 0 | 7 |
| EIP:__do_sys_sigreturn | 0 | 7 |
| WARNING:at_arch/x86/kernel/fpu/signal.c:#fpu__restore_sig | 0 | 7 |
| EIP:fpu__restore_sig | 0 | 7 |
| WARNING:at_kernel/futex/core.c:#get_futex_key | 0 | 2 |
| EIP:get_futex_key | 0 | 2 |
| Kernel_panic-not_syncing:Attempted_to_kill_init!exitcode= | 0 | 19 |
| WARNING:at_mm/highmem.c:#__kmap_local_pfn_prot | 0 | 9 |
| EIP:__kmap_local_pfn_prot | 0 | 9 |
| WARNING:at_arch/x86/include/asm/uaccess.h:#do_sys_poll | 0 | 6 |
| EIP:do_sys_poll | 0 | 6 |
| WARNING:at_lib/iov_iter.c:#copyout | 0 | 2 |
| EIP:copyout | 0 | 2 |
| kernel_BUG_at_mm/vmalloc.c | 0 | 14 |
| invalid_opcode:#[##] | 0 | 14 |
| EIP:__get_vm_area_node | 0 | 14 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 14 |
| WARNING:at_lib/iov_iter.c:#import_single_range | 0 | 1 |
| EIP:import_single_range | 0 | 1 |
+------------------------------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@intel.com>
[ 7.186422][ C0] BUG: sleeping function called from invalid context at arch/x86/entry/common.c:161
[ 7.186426][ C0] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: init
[ 7.186427][ C0] preempt_count: 7ffffffe, expected: 0
[ 7.186430][ C0] CPU: 0 PID: 1 Comm: init Not tainted 5.18.0-rc3-00017-g7d3fafb75102 #1
[ 7.186433][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 7.186434][ C0] Call Trace:
[ 7.186436][ C0] ? show_stack+0x3d/0x45
[ 7.186446][ C0] dump_stack_lvl+0x34/0x44
[ 7.186452][ C0] dump_stack+0xd/0x10
[ 7.186454][ C0] __might_resched.cold+0x9c/0xad
[ 7.186460][ C0] __might_sleep+0x33/0x80
[ 7.186464][ C0] __might_fault+0x28/0x40
[ 7.186468][ C0] __do_fast_syscall_32+0x25/0x100
[ 7.186473][ C0] do_fast_syscall_32+0x29/0x80
[ 7.186476][ C0] do_SYSENTER_32+0x15/0x40
[ 7.186479][ C0] entry_SYSENTER_32+0x98/0xf1
[ 7.186484][ C0] EIP: 0xb7f7c589
[ 7.186486][ C0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76
[ 7.186488][ C0] EAX: ffffffda EBX: 00000007 ECX: 00000056 EDX: 00000000
[ 7.186490][ C0] ESI: 00000000 EDI: b7ef9ff4 EBP: bfd21140 ESP: bfd21140
[ 7.186491][ C0] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000202
[ 7.186496][ C0] BUG: scheduling while atomic: init/1/0x7fffffff
[ 7.186498][ C0] Modules linked in:
[ 7.186500][ C0] CPU: 0 PID: 1 Comm: init Tainted: G W 5.18.0-rc3-00017-g7d3fafb75102 #1
[ 7.186502][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 7.186502][ C0] Call Trace:
[ 7.186503][ C0] ? show_stack+0x3d/0x45
[ 7.186506][ C0] dump_stack_lvl+0x34/0x44
[ 7.186508][ C0] dump_stack+0xd/0x10
[ 7.186511][ C0] __schedule_bug.cold+0x49/0x57
[ 7.186514][ C0] __schedule+0x642/0x780
[ 7.186516][ C0] ? wait_task_inactive+0xaa/0x1c0
[ 7.186519][ C0] schedule+0x49/0xc0
[ 7.186521][ C0] exit_to_user_mode_prepare+0x11a/0x180
[ 7.186525][ C0] syscall_exit_to_user_mode+0x1b/0x40
[ 7.186527][ C0] __do_fast_syscall_32+0x65/0x100
[ 7.186530][ C0] do_fast_syscall_32+0x29/0x80
[ 7.186532][ C0] do_SYSENTER_32+0x15/0x40
[ 7.186535][ C0] entry_SYSENTER_32+0x98/0xf1
[ 7.186538][ C0] EIP: 0xb7f7c589
[ 7.186539][ C0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76
[ 7.186540][ C0] EAX: 00000000 EBX: 00000007 ECX: 00000056 EDX: 00000000
[ 7.186542][ C0] ESI: 00000000 EDI: b7ef9ff4 EBP: bfd211a8 ESP: bfd21140
[ 7.186543][ C0] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000202
[ 7.188748][ C0] ------------[ cut here ]------------
[ 7.188750][ C0] WARNING: CPU: 0 PID: 1 at arch/x86/kernel/fpu/signal.c:206 copy_fpstate_to_sigframe+0x1b8/0x2c0
[ 7.188758][ C0] Modules linked in:
[ 7.188761][ C0] CPU: 0 PID: 1 Comm: init Tainted: G W 5.18.0-rc3-00017-g7d3fafb75102 #1
[ 7.188763][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 7.188764][ C0] EIP: copy_fpstate_to_sigframe+0x1b8/0x2c0
[ 7.188767][ C0] Code: 0b 8b 40 04 8b 55 b4 e8 ce 13 96 00 64 ff 0d d4 06 1e cf eb b3 8d 74 26 00 90 3b bb 80 10 00 00 75 86 eb aa 8d b6 00 00 00 00 <0f> 0b e9 92 fe ff ff 90 39 75 b0 0f 84 c7 00 00 00 8b 55 b0 8b 45
[ 7.188769][ C0] EAX: 000003b4 EBX: c114f600 ECX: c114e540 EDX: 00000000
[ 7.188771][ C0] ESI: bfd20e00 EDI: fffffd28 EBP: c1139ea0 ESP: c1139e4c
[ 7.188772][ C0] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010246
[ 7.188776][ C0] CR0: 80050033 CR2: b7e2bb60 CR3: 02f8e000 CR4: 000406f0
[ 7.188778][ C0] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 7.188779][ C0] DR6: fffe0ff0 DR7: 00000400
[ 7.188780][ C0] Call Trace:
[ 7.188783][ C0] ? kmem_cache_free+0x280/0x2c0
[ 7.188787][ C0] ? bigsmp_ioapic_phys_id_map+0x80/0x80
[ 7.188791][ C0] ? kvm_guest_apic_eoi_write+0x29/0x40
[ 7.188794][ C0] ? sysvec_reschedule_ipi+0x70/0x100
[ 7.188800][ C0] get_sigframe+0x161/0x280
[ 7.188807][ C0] __setup_frame+0x3c/0x200
[ 7.188810][ C0] ? sysvec_reboot+0x40/0x40
[ 7.188813][ C0] handle_signal+0xea/0x180
[ 7.188816][ C0] arch_do_signal_or_restart+0xaa/0xc0
[ 7.188819][ C0] exit_to_user_mode_prepare+0x135/0x180
[ 7.188823][ C0] syscall_exit_to_user_mode+0x1b/0x40
[ 7.188825][ C0] __do_fast_syscall_32+0x65/0x100
[ 7.188829][ C0] do_fast_syscall_32+0x29/0x80
[ 7.188831][ C0] do_SYSENTER_32+0x15/0x40
[ 7.188834][ C0] entry_SYSENTER_32+0x98/0xf1
[ 7.188839][ C0] EIP: 0xb7f7c589
[ 7.188840][ C0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76
[ 7.188842][ C0] EAX: 00000000 EBX: 00004201 ECX: 00000056 EDX: 00000000
[ 7.188843][ C0] ESI: bfd211cc EDI: b7ef9ff4 EBP: bfd211e8 ESP: bfd21170
[ 7.188845][ C0] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000212
[ 7.188847][ C0] ---[ end trace 0000000000000000 ]---
To reproduce:
# build kernel
cd linux
cp config-5.18.0-rc3-00017-g7d3fafb75102 .config
make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 olddefconfig prepare modules_prepare bzImage modules
make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 INSTALL_MOD_PATH=<mod-install-dir> modules_install
cd <mod-install-dir>
find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
--
0-DAY CI Kernel Test Service
https://01.org/lkp
[-- Attachment #2: config-5.18.0-rc3-00017-g7d3fafb75102 --]
[-- Type: text/plain, Size: 141846 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/i386 5.18.0-rc3 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.2.0-20) 11.2.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=110200
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23800
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23800
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT="4.19.0-8-686-pae"
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
CONFIG_KERNEL_XZ=y
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_USELIB=y
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_GENERIC_IRQ_INJECTION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=100
# end of Timers subsystem
CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
# CONFIG_BPF_JIT_ALWAYS_ON is not set
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# CONFIG_BPF_PRELOAD is not set
# CONFIG_BPF_LSM is not set
# end of BPF subsystem
CONFIG_PREEMPT_VOLUNTARY_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_PREEMPT_DYNAMIC is not set
# CONFIG_SCHED_CORE is not set
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
# end of RCU Subsystem
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# end of Scheduler features
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_KMEM=y
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
# CONFIG_CGROUP_HUGETLB is not set
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_BPF=y
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_CHECKPOINT_RESTORE=y
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_USERFAULTFD=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_DEBUG_RSEQ is not set
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_GUEST_PERF_EVENTS=y
# CONFIG_PC104 is not set
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SLAB_FREELIST_RANDOM=y
CONFIG_SLAB_FREELIST_HARDENED=y
# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
CONFIG_SLUB_CPU_PARTIAL=y
CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# end of General setup
CONFIG_X86_32=y
CONFIG_FORCE_DYNAMIC_FTRACE=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf32-i386"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_NR_GPIO=512
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_X86_32_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=3
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
CONFIG_RETPOLINE=y
CONFIG_CC_HAS_SLS=y
# CONFIG_X86_CPU_RESCTRL is not set
CONFIG_X86_BIGSMP=y
# CONFIG_X86_EXTENDED_PLATFORM is not set
CONFIG_X86_INTEL_LPSS=y
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
# CONFIG_X86_32_IRIS is not set
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_X86_HV_CALLBACK_VECTOR=y
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_M486SX is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
CONFIG_M686=y
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MELAN is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_X86_GENERIC=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=6
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_CYRIX_32=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_TRANSMETA_32=y
CONFIG_CPU_SUP_UMC_32=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_CPU_SUP_VORTEX_32=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_NR_CPUS_RANGE_BEGIN=2
CONFIG_NR_CPUS_RANGE_END=64
CONFIG_NR_CPUS_DEFAULT=32
CONFIG_NR_CPUS=32
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_MC_PRIO=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
# CONFIG_X86_MCELOG_LEGACY is not set
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
# CONFIG_X86_ANCIENT_MCE is not set
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m
#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=m
CONFIG_PERF_EVENTS_INTEL_RAPL=m
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
# CONFIG_PERF_EVENTS_AMD_POWER is not set
# CONFIG_PERF_EVENTS_AMD_UNCORE is not set
# end of Performance monitoring
# CONFIG_X86_LEGACY_VM86 is not set
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX32=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_TOSHIBA=m
CONFIG_X86_REBOOTFIXUPS=y
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=m
CONFIG_X86_CPUID=m
# CONFIG_NOHIGHMEM is not set
# CONFIG_HIGHMEM4G is not set
CONFIG_HIGHMEM64G=y
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HIGHMEM=y
CONFIG_X86_PAE=y
# CONFIG_X86_CPA_STATISTICS is not set
CONFIG_NUMA=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=3
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ILLEGAL_POINTER_VALUE=0
CONFIG_X86_PMEM_LEGACY_DEVICE=y
CONFIG_X86_PMEM_LEGACY=m
CONFIG_HIGHPTE=y
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_X86_UMIP=y
CONFIG_CC_HAS_IBT=y
CONFIG_X86_INTEL_TSX_MODE_OFF=y
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_RANDOMIZE_BASE=y
CONFIG_X86_NEED_RELOCS=y
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
# end of Processor type and features
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y
#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_SUSPEND_SKIP_SYNC is not set
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_HIBERNATION_SNAPSHOT_DEV=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_DPM_WATCHDOG is not set
# CONFIG_PM_TRACE_RTC is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=m
CONFIG_ACPI_BATTERY=m
CONFIG_ACPI_BUTTON=m
# CONFIG_ACPI_TINY_POWER_BUTTON is not set
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_TAD=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=m
CONFIG_ACPI_PLATFORM_PROFILE=m
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
# CONFIG_ACPI_NUMA is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
# CONFIG_ACPI_APEI_EINJ is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_DPTF is not set
CONFIG_ACPI_WATCHDOG=y
CONFIG_ACPI_EXTLOG=y
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_PMIC_OPREGION is not set
CONFIG_X86_PM_TIMER=y
CONFIG_X86_APM_BOOT=y
CONFIG_APM=m
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
# CONFIG_APM_DO_ENABLE is not set
# CONFIG_APM_CPU_IDLE is not set
# CONFIG_APM_DISPLAY_BLANK is not set
# CONFIG_APM_ALLOW_INTS is not set
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=m
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
#
# CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
CONFIG_X86_PCC_CPUFREQ=m
# CONFIG_X86_AMD_PSTATE is not set
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K6=m
CONFIG_X86_POWERNOW_K7=m
CONFIG_X86_POWERNOW_K7_ACPI=y
CONFIG_X86_POWERNOW_K8=m
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
CONFIG_X86_GX_SUSPMOD=m
CONFIG_X86_SPEEDSTEP_CENTRINO=m
CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y
CONFIG_X86_SPEEDSTEP_ICH=m
CONFIG_X86_SPEEDSTEP_SMI=m
CONFIG_X86_P4_CLOCKMOD=m
CONFIG_X86_CPUFREQ_NFORCE2=m
CONFIG_X86_LONGRUN=m
CONFIG_X86_LONGHAUL=m
# CONFIG_X86_E_POWERSAVER is not set
#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
CONFIG_X86_SPEEDSTEP_RELAXED_CAP_CHECK=y
# end of CPU Frequency scaling
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_CPU_IDLE_GOV_TEO is not set
# CONFIG_CPU_IDLE_GOV_HALTPOLL is not set
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle
CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options
#
# Bus options (PCI etc.)
#
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
# CONFIG_ISA_BUS is not set
CONFIG_ISA_DMA_API=y
CONFIG_ISA=y
# CONFIG_SCx200 is not set
# CONFIG_ALIX is not set
# CONFIG_NET5501 is not set
# CONFIG_GEOS is not set
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)
#
# Binary Emulations
#
CONFIG_COMPAT_32=y
# end of Binary Emulations
CONFIG_HAVE_ATOMIC_IOMAP=y
CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
# CONFIG_KVM_WERROR is not set
CONFIG_KVM_INTEL=m
# CONFIG_KVM_AMD is not set
# CONFIG_KVM_XEN is not set
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y
#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_KRETPROBE_ON_RETHOOK=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=8
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_ISA_BUS_API=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
CONFIG_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_ARCH_USE_MEMREMAP_PROT=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SPLIT_ARG64=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling
CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
# CONFIG_GCC_PLUGIN_RANDSTRUCT is not set
# end of General architecture-dependent options
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
# CONFIG_MODULE_SIG_ALL is not set
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_ICQ=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=m
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_DEV_THROTTLING_LOW is not set
CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_FC_APPID is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
# CONFIG_BLK_CGROUP_IOPRIO is not set
CONFIG_BLK_DEBUG_FS=y
CONFIG_BLK_DEBUG_FS_ZONED=y
CONFIG_BLK_SED_OPAL=y
# CONFIG_BLK_INLINE_ENCRYPTION is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y
CONFIG_BLK_MQ_STACKING=y
#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
CONFIG_BFQ_GROUP_IOSCHED=y
# CONFIG_BFQ_CGROUP_DEBUG is not set
# end of IO Schedulers
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y
#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# end of Executable file formats
#
# Memory Management options
#
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_NUMA_KEEP_MEMINFO=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
CONFIG_ZSWAP=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT="lzo"
CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
# CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD is not set
# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set
CONFIG_ZSWAP_ZPOOL_DEFAULT="zbud"
# CONFIG_ZSWAP_DEFAULT_ON is not set
CONFIG_ZPOOL=y
CONFIG_ZBUD=y
CONFIG_Z3FOLD=m
CONFIG_ZSMALLOC=m
# CONFIG_ZSMALLOC_STAT is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_ARCH_HAS_ZONE_DMA_SET=y
CONFIG_ZONE_DMA=y
CONFIG_VMAP_PFN=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
CONFIG_GUP_GET_PTE_LOW_HIGH=y
# CONFIG_READ_ONLY_THP_FOR_FS is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_KMAP_LOCAL=y
CONFIG_SECRETMEM=y
# CONFIG_ANON_VMA_NAME is not set
#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options
CONFIG_NET=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_NET_REDIRECT=y
CONFIG_SKB_EXTENSIONS=y
#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=m
# CONFIG_TLS is not set
CONFIG_XFRM=y
CONFIG_XFRM_OFFLOAD=y
CONFIG_XFRM_ALGO=m
CONFIG_XFRM_USER=m
CONFIG_XFRM_INTERFACE=m
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_AH=m
CONFIG_XFRM_ESP=m
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_XDP_SOCKETS=y
# CONFIG_XDP_SOCKETS_DIAG is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
CONFIG_NET_IPVTI=m
CONFIG_NET_UDP_TUNNEL=m
CONFIG_NET_FOU=m
CONFIG_NET_FOU_IP_TUNNELS=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_ESP_OFFLOAD=m
# CONFIG_INET_ESPINTCP is not set
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_DIAG=m
CONFIG_INET_RAW_DIAG=m
CONFIG_INET_DIAG_DESTROY=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_NV=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_TCP_CONG_DCTCP=m
CONFIG_TCP_CONG_CDG=m
CONFIG_TCP_CONG_BBR=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_ESP_OFFLOAD=m
# CONFIG_INET6_ESPINTCP is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=y
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_IPV6_VTI=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_GRE=m
CONFIG_IPV6_FOU=m
CONFIG_IPV6_FOU_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_IPV6_SEG6_LWTUNNEL=y
CONFIG_IPV6_SEG6_HMAC=y
CONFIG_IPV6_SEG6_BPF=y
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
# CONFIG_NETLABEL is not set
# CONFIG_MPTCP is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_BPFILTER is not set
CONFIG_IP_DCCP=y
CONFIG_INET_DCCP_DIAG=m
#
# DCCP CCIDs Configuration
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_TFRC_LIB=y
# end of DCCP CCIDs Configuration
#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
# end of DCCP Kernel Hacking
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_OBJCNT is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1 is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
CONFIG_SCTP_COOKIE_HMAC_SHA1=y
CONFIG_INET_SCTP_DIAG=m
# CONFIG_RDS is not set
CONFIG_TIPC=m
CONFIG_TIPC_MEDIA_UDP=y
CONFIG_TIPC_CRYPTO=y
CONFIG_TIPC_DIAG=m
# CONFIG_ATM is not set
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=m
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_MRP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_CBS=m
CONFIG_NET_SCH_ETF=m
# CONFIG_NET_SCH_TAPRIO is not set
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
CONFIG_NET_SCH_SKBPRIO=m
CONFIG_NET_SCH_CHOKE=m
CONFIG_NET_SCH_QFQ=m
CONFIG_NET_SCH_CODEL=m
CONFIG_NET_SCH_FQ_CODEL=m
CONFIG_NET_SCH_CAKE=m
CONFIG_NET_SCH_FQ=m
CONFIG_NET_SCH_HHF=m
CONFIG_NET_SCH_PIE=m
# CONFIG_NET_SCH_FQ_PIE is not set
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_SCH_PLUG=m
# CONFIG_NET_SCH_ETS is not set
# CONFIG_NET_SCH_DEFAULT is not set
#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=m
CONFIG_NET_CLS_BPF=m
CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_CLS_MATCHALL=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_SAMPLE=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
# CONFIG_NET_ACT_MPLS is not set
CONFIG_NET_ACT_VLAN=m
CONFIG_NET_ACT_BPF=m
CONFIG_NET_ACT_SKBMOD=m
CONFIG_NET_ACT_IFE=m
CONFIG_NET_ACT_TUNNEL_KEY=m
# CONFIG_NET_ACT_GATE is not set
CONFIG_NET_IFE_SKBMARK=m
CONFIG_NET_IFE_SKBPRIO=m
CONFIG_NET_IFE_SKBTCINDEX=m
# CONFIG_NET_TC_SKB_EXT is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=m
CONFIG_BATMAN_ADV=m
# CONFIG_BATMAN_ADV_BATMAN_V is not set
CONFIG_BATMAN_ADV_BLA=y
CONFIG_BATMAN_ADV_DAT=y
CONFIG_BATMAN_ADV_NC=y
CONFIG_BATMAN_ADV_MCAST=y
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_BATMAN_ADV_TRACING is not set
CONFIG_OPENVSWITCH=m
CONFIG_OPENVSWITCH_GRE=m
CONFIG_OPENVSWITCH_VXLAN=m
CONFIG_OPENVSWITCH_GENEVE=m
CONFIG_VSOCKETS=m
CONFIG_VSOCKETS_DIAG=m
CONFIG_VSOCKETS_LOOPBACK=m
CONFIG_VMWARE_VMCI_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
CONFIG_NETLINK_DIAG=m
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=y
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
CONFIG_NET_NSH=m
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
CONFIG_NET_L3_MASTER_DEV=y
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_STREAM_PARSER=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
CONFIG_NET_PKTGEN=m
CONFIG_NET_DROP_MONITOR=m
# end of Network testing
# end of Networking options
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_BT is not set
CONFIG_AF_RXRPC=m
CONFIG_AF_RXRPC_IPV6=y
# CONFIG_AF_RXRPC_INJECT_LOSS is not set
# CONFIG_AF_RXRPC_DEBUG is not set
CONFIG_RXKAD=y
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_RFKILL is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_FD=y
CONFIG_NET_9P_VIRTIO=m
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
# CONFIG_CEPH_LIB_USE_DNS_RESOLVER is not set
# CONFIG_NFC is not set
CONFIG_PSAMPLE=m
CONFIG_NET_IFE=m
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_NET_DEVLINK=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=m
CONFIG_ETHTOOL_NETLINK=y
#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIEAER_INJECT=m
# CONFIG_PCIE_ECRC is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCIE_DPC=y
CONFIG_PCIE_PTM=y
# CONFIG_PCIE_EDR is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
CONFIG_PCI_REALLOC_ENABLE_AUTO=y
CONFIG_PCI_STUB=m
CONFIG_PCI_PF_STUB=m
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_LABEL=y
# CONFIG_PCIE_BUS_TUNE_OFF is not set
CONFIG_PCIE_BUS_DEFAULT=y
# CONFIG_PCIE_BUS_SAFE is not set
# CONFIG_PCIE_BUS_PERFORMANCE is not set
# CONFIG_PCIE_BUS_PEER2PEER is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_COMPAQ=m
# CONFIG_HOTPLUG_PCI_COMPAQ_NVRAM is not set
CONFIG_HOTPLUG_PCI_IBM=m
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
CONFIG_HOTPLUG_PCI_CPCI=y
CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m
CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m
CONFIG_HOTPLUG_PCI_SHPC=y
#
# PCI controller drivers
#
#
# DesignWare PCI Core Support
#
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCI_MESON is not set
# end of DesignWare PCI Core Support
#
# Mobiveil PCIe Core Support
#
# end of Mobiveil PCIe Core Support
#
# Cadence PCIe controllers support
#
# end of Cadence PCIe controllers support
# end of PCI controller drivers
#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint
#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# end of PCI switch controller drivers
# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set
#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
# CONFIG_FW_LOADER_COMPRESS is not set
CONFIG_FW_CACHE=y
# end of Firmware loader
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_MMIO=m
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options
#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# end of Bus devices
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
#
# Firmware Drivers
#
#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol
CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
CONFIG_FW_CFG_SYSFS=m
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_GOOGLE_FIRMWARE is not set
#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=m
CONFIG_EFI_ESRT=y
CONFIG_EFI_VARS_PSTORE=m
# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
CONFIG_EFI_BOOTLOADER_CONTROL=m
CONFIG_EFI_CAPSULE_LOADER=y
CONFIG_EFI_CAPSULE_QUIRK_QUARK_CSH=y
# CONFIG_EFI_TEST is not set
# CONFIG_APPLE_PROPERTIES is not set
# CONFIG_RESET_ATTACK_MITIGATION is not set
# CONFIG_EFI_RCI2_TABLE is not set
# CONFIG_EFI_DISABLE_PCI_DMA is not set
# end of EFI (Extensible Firmware Interface) Support
CONFIG_UEFI_CPER=y
CONFIG_UEFI_CPER_X86=y
CONFIG_EFI_EARLYCON=y
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y
#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers
# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set
#
# Protocols
#
CONFIG_ISAPNP=y
CONFIG_PNPBIOS=y
# CONFIG_PNPBIOS_PROC_FS is not set
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_NULL_BLK=m
CONFIG_BLK_DEV_FD=m
CONFIG_CDROM=m
# CONFIG_PARIDE is not set
CONFIG_BLK_DEV_PCIESSD_MTIP32XX=m
# CONFIG_ZRAM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_DRBD=m
# CONFIG_DRBD_FAULT_INJECTION is not set
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
CONFIG_VIRTIO_BLK=m
CONFIG_BLK_DEV_RBD=m
#
# NVME Support
#
CONFIG_NVME_CORE=m
CONFIG_BLK_DEV_NVME=m
CONFIG_NVME_MULTIPATH=y
# CONFIG_NVME_VERBOSE_ERRORS is not set
# CONFIG_NVME_HWMON is not set
CONFIG_NVME_FABRICS=m
CONFIG_NVME_FC=m
# CONFIG_NVME_TCP is not set
CONFIG_NVME_TARGET=m
# CONFIG_NVME_TARGET_PASSTHRU is not set
# CONFIG_NVME_TARGET_LOOP is not set
CONFIG_NVME_TARGET_FC=m
# CONFIG_NVME_TARGET_FCLOOP is not set
# CONFIG_NVME_TARGET_TCP is not set
# end of NVME Support
#
# Misc devices
#
CONFIG_SENSORS_LIS3LV02D=m
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_CS5535_MFGPT is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
CONFIG_VMWARE_BALLOON=m
# CONFIG_PCH_PHUB is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_AT25=m
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support
# CONFIG_CB710_CORE is not set
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline
# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_ME=m
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MEI_PXP is not set
CONFIG_VMWARE_VMCI=m
# CONFIG_ECHO is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_HABANA_AI is not set
# CONFIG_PVPANIC is not set
# end of Misc devices
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
# CONFIG_SCSI_PROC_FS is not set
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
CONFIG_BLK_DEV_BSG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
# end of SCSI Transports
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_DH is not set
# end of SCSI device support
CONFIG_ATA=m
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
CONFIG_SATA_ZPODD=y
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_MOBILE_LPM_POLICY=3
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5535 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
CONFIG_PATA_OLDPIIX=m
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
CONFIG_PATA_SCH=m
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_ISAPNP is not set
CONFIG_PATA_MPIIX=m
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PLATFORM is not set
# CONFIG_PATA_QDI is not set
CONFIG_PATA_RZ1000=m
# CONFIG_PATA_WINBOND_VLB is not set
#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
# CONFIG_MD_CLUSTER is not set
CONFIG_BCACHE=m
# CONFIG_BCACHE_DEBUG is not set
# CONFIG_BCACHE_CLOSURES_DEBUG is not set
# CONFIG_BCACHE_ASYNC_REGISTRATION is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_BUFIO=m
# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
CONFIG_DM_BIO_PRISON=m
CONFIG_DM_PERSISTENT_DATA=m
CONFIG_DM_UNSTRIPED=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_THIN_PROVISIONING=m
CONFIG_DM_CACHE=m
CONFIG_DM_CACHE_SMQ=m
CONFIG_DM_WRITECACHE=m
CONFIG_DM_ERA=m
# CONFIG_DM_CLONE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_DUST is not set
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
CONFIG_DM_VERITY=m
# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set
# CONFIG_DM_VERITY_FEC is not set
CONFIG_DM_SWITCH=m
CONFIG_DM_LOG_WRITES=m
CONFIG_DM_INTEGRITY=m
CONFIG_DM_ZONED=m
CONFIG_DM_AUDIT=y
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_TCM_USER2=m
CONFIG_LOOPBACK_TARGET=m
CONFIG_ISCSI_TARGET=m
CONFIG_ISCSI_TARGET_CXGB4=m
CONFIG_SBP_TARGET=m
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
CONFIG_FIREWIRE_NOSY=m
# end of IEEE 1394 (FireWire) support
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_NET_CORE=y
CONFIG_BONDING=m
CONFIG_DUMMY=m
# CONFIG_WIREGUARD is not set
CONFIG_EQUALIZER=m
CONFIG_NET_FC=y
CONFIG_IFB=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
CONFIG_NET_TEAM_MODE_ROUNDROBIN=m
CONFIG_NET_TEAM_MODE_RANDOM=m
CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=m
CONFIG_NET_TEAM_MODE_LOADBALANCE=m
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
CONFIG_IPVLAN=m
CONFIG_IPVTAP=m
CONFIG_VXLAN=m
CONFIG_GENEVE=m
# CONFIG_BAREUDP is not set
CONFIG_GTP=m
# CONFIG_AMT is not set
CONFIG_MACSEC=m
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
CONFIG_TAP=m
# CONFIG_TUN_VNET_CROSS_LE is not set
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
CONFIG_NLMON=m
CONFIG_NET_VRF=m
CONFIG_VSOCKMON=m
# CONFIG_ARCNET is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=m
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
CONFIG_BNX2=m
CONFIG_CNIC=m
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
CONFIG_CHELSIO_T3=m
CONFIG_CHELSIO_T4=m
# CONFIG_CHELSIO_T4_DCB is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_CHELSIO_LIB=m
CONFIG_CHELSIO_INLINE_CRYPTO=y
# CONFIG_CHELSIO_IPSEC_INLINE is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_NET_VENDOR_CORTINA is not set
# CONFIG_CX_ECAT is not set
CONFIG_NET_VENDOR_DAVICOM=y
# CONFIG_DM9051 is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
CONFIG_NET_VENDOR_EMULEX=y
CONFIG_BE2NET=m
# CONFIG_BE2NET_HWMON is not set
CONFIG_BE2NET_BE2=y
CONFIG_BE2NET_BE3=y
# CONFIG_BE2NET_LANCER is not set
# CONFIG_BE2NET_SKYHAWK is not set
CONFIG_NET_VENDOR_ENGLEDER=y
# CONFIG_TSNEP is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
CONFIG_NET_VENDOR_FUNGIBLE=y
# CONFIG_FUN_ETH is not set
CONFIG_NET_VENDOR_GOOGLE=y
# CONFIG_GVE is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=m
CONFIG_E1000=y
CONFIG_E1000E=m
CONFIG_E1000E_HWTS=y
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
CONFIG_IGBVF=m
# CONFIG_IXGB is not set
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGBE_IPSEC=y
CONFIG_IXGBEVF=m
CONFIG_IXGBEVF_IPSEC=y
CONFIG_I40E=m
CONFIG_I40E_DCB=y
CONFIG_IAVF=m
CONFIG_I40EVF=m
CONFIG_ICE=m
CONFIG_ICE_HWTS=y
# CONFIG_FM10K is not set
CONFIG_IGC=m
CONFIG_NET_VENDOR_MICROSOFT=y
# CONFIG_JME is not set
CONFIG_NET_VENDOR_LITEX=y
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETERION is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
CONFIG_NET_VENDOR_PENSANDO=y
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
CONFIG_R8169=y
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_MSE102X is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
CONFIG_LED_TRIGGER_PHY=y
CONFIG_FIXED_PHY=y
#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
CONFIG_AX88796B_PHY=m
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
CONFIG_LXT_PHY=m
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
CONFIG_MICROCHIP_PHY=m
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
CONFIG_SMSC_PHY=m
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_MSCC_MIIM is not set
#
# MDIO Multiplexers
#
#
# PCS device drivers
#
# CONFIG_PCS_XPCS is not set
# end of PCS device drivers
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
#
# Host-side USB support is needed for USB Network Adapter support
#
CONFIG_USB_NET_DRIVERS=m
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
CONFIG_USB_RTL8152=m
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
# CONFIG_USB_NET_CDCETHER is not set
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
# CONFIG_WLAN is not set
# CONFIG_WAN is not set
#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN
CONFIG_VMXNET3=m
# CONFIG_FUJITSU_ES is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_MATRIXKMAP=m
CONFIG_INPUT_VIVALDIFMAP=y
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ADP5588=m
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_APPLESPI is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
CONFIG_KEYBOARD_QT2160=m
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
CONFIG_KEYBOARD_LKKBD=m
CONFIG_KEYBOARD_GPIO=m
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
CONFIG_KEYBOARD_LM8323=m
# CONFIG_KEYBOARD_LM8333 is not set
CONFIG_KEYBOARD_MAX7359=m
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
CONFIG_KEYBOARD_NEWTON=m
CONFIG_KEYBOARD_OPENCORES=m
# CONFIG_KEYBOARD_SAMSUNG is not set
CONFIG_KEYBOARD_STOWAWAY=m
CONFIG_KEYBOARD_SUNKBD=m
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
CONFIG_KEYBOARD_XTKBD=m
# CONFIG_KEYBOARD_CYPRESS_SF is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
CONFIG_MOUSE_PS2_SENTELIC=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_VMMOUSE=y
CONFIG_MOUSE_PS2_SMBUS=y
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_APPLETOUCH=m
CONFIG_MOUSE_BCM5974=m
CONFIG_MOUSE_CYAPA=m
CONFIG_MOUSE_ELAN_I2C=m
CONFIG_MOUSE_ELAN_I2C_I2C=y
CONFIG_MOUSE_ELAN_I2C_SMBUS=y
CONFIG_MOUSE_INPORT=m
# CONFIG_MOUSE_ATIXL is not set
CONFIG_MOUSE_LOGIBM=m
CONFIG_MOUSE_PC110PAD=m
CONFIG_MOUSE_VSXXXAA=m
# CONFIG_MOUSE_GPIO is not set
CONFIG_MOUSE_SYNAPTICS_I2C=m
CONFIG_MOUSE_SYNAPTICS_USB=m
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=m
CONFIG_SERIO_CT82C710=m
CONFIG_SERIO_PARKBD=m
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=m
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LDISC_AUTOLOAD=y
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
CONFIG_SERIAL_8250_FINTEK=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=m
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=m
CONFIG_SERIAL_8250_ACCENT=m
CONFIG_SERIAL_8250_BOCA=m
CONFIG_SERIAL_8250_EXAR_ST16C554=m
CONFIG_SERIAL_8250_HUB6=m
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_LPSS is not set
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_SERIAL_PCH_UART=m
# CONFIG_SERIAL_ARC is not set
CONFIG_SERIAL_RP2=m
CONFIG_SERIAL_RP2_NR_UARTS=32
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers
CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
CONFIG_MOXA_SMARTIO=m
CONFIG_SYNCLINK_GT=m
CONFIG_N_HDLC=m
CONFIG_N_GSM=m
CONFIG_NOZOMI=m
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
CONFIG_SERIAL_DEV_BUS=y
CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
CONFIG_TTY_PRINTK=m
CONFIG_TTY_PRINTK_LEVEL=6
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_DMI_DECODE=y
CONFIG_IPMI_PLAT_DATA=y
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_SSIF=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=m
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_INTEL=m
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_BA431 is not set
CONFIG_HW_RANDOM_GEODE=m
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=m
# CONFIG_HW_RANDOM_XIPHERA is not set
CONFIG_DTLK=m
CONFIG_APPLICOM=m
CONFIG_SONYPI=m
CONFIG_MWAVE=m
CONFIG_PC8736x_GPIO=m
CONFIG_NSC_GPIO=m
CONFIG_DEVMEM=y
CONFIG_NVRAM=m
CONFIG_DEVPORT=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
CONFIG_HPET_MMAP_DEFAULT=y
CONFIG_HANGCHECK_TIMER=m
CONFIG_TCG_TPM=m
CONFIG_HW_RANDOM_TPM=y
CONFIG_TCG_TIS_CORE=m
CONFIG_TCG_TIS=m
CONFIG_TCG_TIS_SPI=m
# CONFIG_TCG_TIS_SPI_CR50 is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
CONFIG_TCG_CRB=m
CONFIG_TCG_VTPM_PROXY=m
CONFIG_TCG_TIS_ST33ZP24=m
CONFIG_TCG_TIS_ST33ZP24_I2C=m
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
CONFIG_TELCLOCK=m
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
CONFIG_RANDOM_TRUST_CPU=y
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# end of Character devices
#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m
#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_REG is not set
# CONFIG_I2C_MUX_MLXCPLD is not set
# end of Multiplexer I2C Chip support
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=m
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
CONFIG_I2C_CCGX_UCSI=m
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_PIIX4=m
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
#
# ACPI drivers
#
CONFIG_I2C_SCMI=m
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=m
# CONFIG_I2C_DESIGNWARE_AMDPSP is not set
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
CONFIG_I2C_DESIGNWARE_PCI=m
CONFIG_I2C_EG20T=m
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_ISA is not set
# CONFIG_SCx200_ACB is not set
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support
CONFIG_I2C_STUB=m
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support
# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
CONFIG_SPI_MEM=y
#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
CONFIG_SPI_BITBANG=m
CONFIG_SPI_BUTTERFLY=m
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_INTEL_PCI is not set
# CONFIG_SPI_INTEL_PLATFORM is not set
CONFIG_SPI_LM70_LLP=m
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
CONFIG_SPI_TOPCLIFF_PCH=m
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set
#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set
#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=y
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
CONFIG_PPS_CLIENT_LDISC=m
CONFIG_PPS_CLIENT_PARPORT=m
# CONFIG_PPS_CLIENT_GPIO is not set
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m
CONFIG_PTP_1588_CLOCK_OPTIONAL=m
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_PCH=m
CONFIG_PTP_1588_CLOCK_KVM=m
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
# end of PTP clock support
CONFIG_PINCTRL=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_SX150X is not set
#
# Intel pinctrl drivers
#
# CONFIG_PINCTRL_BAYTRAIL is not set
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_LYNXPOINT is not set
# CONFIG_PINCTRL_ALDERLAKE is not set
# CONFIG_PINCTRL_BROXTON is not set
# CONFIG_PINCTRL_CANNONLAKE is not set
# CONFIG_PINCTRL_CEDARFORK is not set
# CONFIG_PINCTRL_DENVERTON is not set
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
# CONFIG_PINCTRL_LAKEFIELD is not set
# CONFIG_PINCTRL_LEWISBURG is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
# CONFIG_PINCTRL_TIGERLAKE is not set
# end of Intel pinctrl drivers
#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y
#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
CONFIG_GPIO_EXAR=m
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_MB86S7X is not set
CONFIG_GPIO_VX855=m
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers
#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers
#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders
#
# MFD GPIO expanders
#
CONFIG_GPIO_CS5535=m
# end of MFD GPIO expanders
#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
CONFIG_GPIO_ML_IOH=m
CONFIG_GPIO_PCH=m
CONFIG_GPIO_PCI_IDIO_16=m
CONFIG_GPIO_PCIE_IDIO_24=m
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders
#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders
#
# USB GPIO expanders
#
# end of USB GPIO expanders
#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers
# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_PDA_POWER is not set
# CONFIG_IP5XXX_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SAMSUNG_SDI is not set
CONFIG_BATTERY_SBS=m
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
CONFIG_BATTERY_BQ27XXX=m
# CONFIG_BATTERY_BQ27XXX_I2C is not set
# CONFIG_BATTERY_MAX17040 is not set
CONFIG_BATTERY_MAX17042=m
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_BQ2415X is not set
CONFIG_CHARGER_BQ24190=m
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_UG3105 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
# CONFIG_SENSORS_AD7314 is not set
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
# CONFIG_SENSORS_ADM1177 is not set
CONFIG_SENSORS_ADM9240=m
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set
# CONFIG_SENSORS_AS370 is not set
CONFIG_SENSORS_ASC7621=m
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
CONFIG_SENSORS_FAM15H_POWER=m
CONFIG_SENSORS_APPLESMC=m
CONFIG_SENSORS_ASB100=m
CONFIG_SENSORS_ASPEED=m
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
# CONFIG_SENSORS_DELL_SMM is not set
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_FTSTEUTATES=m
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_I5500=m
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
CONFIG_SENSORS_LINEAGE=m
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2992 is not set
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
# CONFIG_SENSORS_LTC4222 is not set
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4260 is not set
CONFIG_SENSORS_LTC4261=m
CONFIG_SENSORS_MAX1111=m
# CONFIG_SENSORS_MAX127 is not set
CONFIG_SENSORS_MAX16065=m
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX1668=m
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6642=m
CONFIG_SENSORS_MAX6650=m
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
CONFIG_SENSORS_ADCXX=m
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM70=m
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
# CONFIG_SENSORS_LM95234 is not set
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_NCT6683=m
CONFIG_SENSORS_NCT6775=m
CONFIG_SENSORS_NCT7802=m
CONFIG_SENSORS_NCT7904=m
CONFIG_SENSORS_NPCM7XX=m
# CONFIG_SENSORS_NZXT_KRAKEN2 is not set
# CONFIG_SENSORS_NZXT_SMART2 is not set
CONFIG_SENSORS_PCF8591=m
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
# CONFIG_SENSORS_SHT15 is not set
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
CONFIG_SENSORS_SIS5595=m
# CONFIG_SENSORS_SY7636A is not set
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=m
CONFIG_SENSORS_EMC6W201=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
CONFIG_SENSORS_SCH5636=m
# CONFIG_SENSORS_STTS751 is not set
CONFIG_SENSORS_SMM665=m
# CONFIG_SENSORS_ADC128D818 is not set
CONFIG_SENSORS_ADS7828=m
CONFIG_SENSORS_ADS7871=m
CONFIG_SENSORS_AMC6821=m
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_TMP464 is not set
# CONFIG_SENSORS_TMP513 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
CONFIG_SENSORS_W83773G=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
# CONFIG_SENSORS_W83795_FANCTRL is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
#
# ACPI drivers
#
CONFIG_SENSORS_ACPI_POWER=m
CONFIG_SENSORS_ATK0110=m
# CONFIG_SENSORS_ASUS_WMI is not set
# CONFIG_SENSORS_ASUS_WMI_EC is not set
# CONFIG_SENSORS_ASUS_EC is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
CONFIG_THERMAL_STATISTICS=y
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
CONFIG_THERMAL_GOV_USER_SPACE=y
CONFIG_DEVFREQ_THERMAL=y
# CONFIG_THERMAL_EMULATION is not set
#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_X86_PKG_TEMP_THERMAL=m
CONFIG_INTEL_SOC_DTS_IOSF_CORE=m
CONFIG_INTEL_SOC_DTS_THERMAL=m
#
# ACPI INT340X thermal drivers
#
# end of ACPI INT340X thermal drivers
CONFIG_INTEL_PCH_THERMAL=m
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_MENLOW is not set
# CONFIG_INTEL_HFI_THERMAL is not set
# end of Intel thermal drivers
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set
#
# Watchdog Pretimeout Governors
#
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_SEL=m
CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC=m
CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP=y
# CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC is not set
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_SOFT_WATCHDOG_PRETIMEOUT is not set
CONFIG_WDAT_WDT=m
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_EBC_C384_WDT is not set
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=y
CONFIG_IE6XX_WDT=m
CONFIG_ITCO_WDT=y
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SBC8360_WDT is not set
# CONFIG_SBC7240_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
CONFIG_INTEL_MEI_WDT=m
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set
#
# ISA-based Watchdog Cards
#
# CONFIG_PCWATCHDOG is not set
# CONFIG_MIXCOMWD is not set
# CONFIG_WDT is not set
#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set
#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
CONFIG_MFD_CS5535=m
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
CONFIG_MFD_AXP20X=m
CONFIG_MFD_AXP20X_I2C=m
# CONFIG_MFD_MADERA is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=m
CONFIG_LPC_SCH=m
CONFIG_MFD_INTEL_LPSS=m
CONFIG_MFD_INTEL_LPSS_ACPI=m
CONFIG_MFD_INTEL_LPSS_PCI=m
# CONFIG_MFD_INTEL_PMC_BXT is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SIMPLE_MFD_I2C is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TIMBERDALE is not set
# CONFIG_MFD_TQMX86 is not set
CONFIG_MFD_VX855=m
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_RAVE_SP_CORE is not set
# CONFIG_MFD_INTEL_M10_BMC is not set
# end of Multifunction device drivers
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_88PG86X is not set
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_AXP20X is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_DA9211 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8893 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX20086 is not set
# CONFIG_REGULATOR_MAX77826 is not set
# CONFIG_REGULATOR_MP8859 is not set
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_PCA9450 is not set
# CONFIG_REGULATOR_PV88060 is not set
# CONFIG_REGULATOR_PV88080 is not set
# CONFIG_REGULATOR_PV88090 is not set
# CONFIG_REGULATOR_PWM is not set
# CONFIG_REGULATOR_RT4801 is not set
# CONFIG_REGULATOR_RT5190A is not set
# CONFIG_REGULATOR_RT6160 is not set
# CONFIG_REGULATOR_RT6245 is not set
# CONFIG_REGULATOR_RTQ2134 is not set
# CONFIG_REGULATOR_RTMV20 is not set
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_SLG51000 is not set
# CONFIG_REGULATOR_SY7636A is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_REGULATOR_TPS65132 is not set
# CONFIG_REGULATOR_TPS6524X is not set
# CONFIG_RC_CORE is not set
CONFIG_CEC_CORE=m
#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_ALI=y
CONFIG_AGP_ATI=y
# CONFIG_AGP_AMD is not set
# CONFIG_AGP_AMD64 is not set
CONFIG_AGP_INTEL=y
CONFIG_AGP_NVIDIA=y
CONFIG_AGP_SIS=y
CONFIG_AGP_SWORKS=y
CONFIG_AGP_VIA=y
CONFIG_AGP_EFFICEON=y
CONFIG_INTEL_GTT=y
CONFIG_VGA_SWITCHEROO=y
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_DP_AUX_CHARDEV=y
# CONFIG_DRM_DEBUG_SELFTEST is not set
CONFIG_DRM_DP_HELPER=m
CONFIG_DRM_KMS_HELPER=m
# CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS is not set
# CONFIG_DRM_DEBUG_MODESET_LOCK is not set
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
# CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM is not set
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
CONFIG_DRM_DP_CEC=y
CONFIG_DRM_TTM=m
CONFIG_DRM_BUDDY=m
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=m
#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set
# end of I2C encoder or helper chips
#
# ARM devices
#
# end of ARM devices
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_FORCE_PROBE=""
CONFIG_DRM_I915_CAPTURE_ERROR=y
CONFIG_DRM_I915_COMPRESS_ERROR=y
CONFIG_DRM_I915_USERPTR=y
#
# drm/i915 Debugging
#
# CONFIG_DRM_I915_WERROR is not set
# CONFIG_DRM_I915_DEBUG is not set
# CONFIG_DRM_I915_DEBUG_MMIO is not set
# CONFIG_DRM_I915_SW_FENCE_DEBUG_OBJECTS is not set
# CONFIG_DRM_I915_SW_FENCE_CHECK_DAG is not set
# CONFIG_DRM_I915_DEBUG_GUC is not set
# CONFIG_DRM_I915_SELFTEST is not set
# CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS is not set
# CONFIG_DRM_I915_DEBUG_VBLANK_EVADE is not set
# CONFIG_DRM_I915_DEBUG_RUNTIME_PM is not set
# end of drm/i915 Debugging
#
# drm/i915 Profile Guided Optimisation
#
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
# end of drm/i915 Profile Guided Optimisation
CONFIG_DRM_VGEM=m
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
CONFIG_DRM_GMA500=m
CONFIG_DRM_UDL=m
CONFIG_DRM_AST=m
CONFIG_DRM_MGAG200=m
CONFIG_DRM_QXL=m
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y
#
# Display Panels
#
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set
# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set
# end of Display Panels
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y
#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# end of Display Interface Bridges
# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=m
CONFIG_DRM_CIRRUS_QEMU=m
# CONFIG_DRM_GM12U320 is not set
# CONFIG_DRM_PANEL_MIPI_DBI is not set
# CONFIG_DRM_SIMPLEDRM is not set
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9163 is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_ST7586 is not set
# CONFIG_TINYDRM_ST7735R is not set
# CONFIG_DRM_VBOXVIDEO is not set
# CONFIG_DRM_GUD is not set
# CONFIG_DRM_SSD130X is not set
CONFIG_DRM_LEGACY=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
CONFIG_DRM_I810=m
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
CONFIG_DRM_NOMODESET=y
CONFIG_DRM_PRIVACY_SCREEN=y
#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_DDC=m
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
CONFIG_FB_UVESA=m
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
CONFIG_FB_I810=m
CONFIG_FB_I810_GTF=y
CONFIG_FB_I810_I2C=y
CONFIG_FB_LE80578=m
CONFIG_FB_CARILLO_RANCH=m
# CONFIG_FB_INTEL is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_GEODE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set
# end of Frame buffer Devices
#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_PWM is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# end of Backlight & LCD device support
CONFIG_VGASTATE=m
CONFIG_HDMI=y
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_MDA_CONSOLE=m
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
# end of Console display driver support
# CONFIG_LOGO is not set
# end of Graphics support
# CONFIG_SOUND is not set
#
# HID support
#
CONFIG_HID=m
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
CONFIG_UHID=m
CONFIG_HID_GENERIC=m
#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACCUTOUCH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_ASUS is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_BIGBEN_FF is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CP2112 is not set
# CONFIG_HID_CREATIVE_SB0540 is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELAN is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_FT260 is not set
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_GT683R is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_XIAOMI is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_ITE is not set
# CONFIG_HID_JABRA is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
CONFIG_HID_LED=m
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LETSKETCH is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_REDRAGON is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NINTENDO is not set
# CONFIG_HID_NTI is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_RAZER is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SIGMAMICRO is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEAM is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_U2FZERO is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
# CONFIG_HID_ALPS is not set
# CONFIG_HID_MCP2221 is not set
# end of Special HID drivers
#
# USB HID support
#
CONFIG_USB_HID=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set
# end of USB HID Boot Protocol drivers
# end of USB HID support
#
# I2C HID support
#
# CONFIG_I2C_HID_ACPI is not set
# end of I2C HID support
# end of HID support
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=m
CONFIG_USB_LED_TRIG=y
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=m
CONFIG_USB_PCI=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
CONFIG_USB_DYNAMIC_MINORS=y
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
# CONFIG_USB_OTG_DISABLE_EXTERNAL_HUB is not set
CONFIG_USB_LEDS_TRIGGER_USBPORT=m
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_MON=m
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=m
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=m
# CONFIG_USB_XHCI_PCI_RENESAS is not set
# CONFIG_USB_XHCI_PLATFORM is not set
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=m
# CONFIG_USB_EHCI_FSL is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PCI=m
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
CONFIG_USB_STORAGE_REALTEK=m
CONFIG_REALTEK_AUTOPM=y
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_CDNS_SUPPORT is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set
#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_SIMPLE=m
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
CONFIG_USB_SERIAL_F81232=m
CONFIG_USB_SERIAL_F8153X=m
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_IUU=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_METRO=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7715_PARPORT=y
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_MXUPORT=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
CONFIG_USB_SERIAL_QCAUX=m
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_SAFE=m
# CONFIG_USB_SERIAL_SAFE_PADDED is not set
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
# CONFIG_USB_SERIAL_TI is not set
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_WWAN=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
CONFIG_USB_SERIAL_XSENS_MT=m
CONFIG_USB_SERIAL_WISHBONE=m
CONFIG_USB_SERIAL_SSU100=m
CONFIG_USB_SERIAL_QT2=m
CONFIG_USB_SERIAL_UPD78F0730=m
# CONFIG_USB_SERIAL_XR is not set
CONFIG_USB_SERIAL_DEBUG=m
#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
CONFIG_USB_EZUSB_FX2=m
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set
#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# end of USB Physical Layer drivers
# CONFIG_USB_GADGET is not set
CONFIG_TYPEC=m
CONFIG_TYPEC_TCPM=m
# CONFIG_TYPEC_TCPCI is not set
CONFIG_TYPEC_FUSB302=m
CONFIG_TYPEC_UCSI=m
# CONFIG_UCSI_CCG is not set
CONFIG_UCSI_ACPI=m
CONFIG_TYPEC_TPS6598X=m
# CONFIG_TYPEC_RT1719 is not set
# CONFIG_TYPEC_HD3SS3220 is not set
# CONFIG_TYPEC_STUSB160X is not set
# CONFIG_TYPEC_WUSB3801 is not set
#
# USB Type-C Multiplexer/DeMultiplexer Switch support
#
# CONFIG_TYPEC_MUX_PI3USB30532 is not set
# end of USB Type-C Multiplexer/DeMultiplexer Switch support
#
# USB Type-C Alternate Mode drivers
#
# CONFIG_TYPEC_DP_ALTMODE is not set
# end of USB Type-C Alternate Mode drivers
CONFIG_USB_ROLE_SWITCH=m
# CONFIG_USB_ROLES_INTEL_XHCI is not set
CONFIG_MMC=m
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=256
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PCI=m
CONFIG_MMC_RICOH_MMC=y
CONFIG_MMC_SDHCI_ACPI=m
# CONFIG_MMC_SDHCI_PLTFM is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
CONFIG_MMC_CQHCI=m
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
CONFIG_LEDS_BRIGHTNESS_HW_CHANGED=y
#
# LED drivers
#
# CONFIG_LEDS_APU is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
CONFIG_LEDS_GPIO=m
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
CONFIG_LEDS_REGULATOR=m
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_OT200 is not set
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
# CONFIG_LEDS_MLXCPLD is not set
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set
#
# Flash and Torch LED drivers
#
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_ONESHOT=m
CONFIG_LEDS_TRIGGER_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
CONFIG_LEDS_TRIGGER_CPU=y
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=m
CONFIG_LEDS_TRIGGER_CAMERA=m
CONFIG_LEDS_TRIGGER_PANIC=y
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
CONFIG_LEDS_TRIGGER_AUDIO=m
# CONFIG_LEDS_TRIGGER_TTY is not set
#
# Simple LED drivers
#
CONFIG_ACCESSIBILITY=y
CONFIG_A11Y_BRAILLE_CONSOLE=y
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# end of Speakup console speech
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
# CONFIG_EDAC_GHES is not set
# CONFIG_EDAC_AMD76X is not set
CONFIG_EDAC_E7XXX=m
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82875P=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_IE31200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I82860=m
CONFIG_EDAC_R82600=m
CONFIG_EDAC_I5000=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set
#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y
#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RX6110 is not set
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
# CONFIG_ALTERA_MSGDMA is not set
CONFIG_INTEL_IDMA64=m
CONFIG_PCH_DMA=m
# CONFIG_PLX_DMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=m
CONFIG_DW_DMAC=m
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_DW_EDMA is not set
# CONFIG_DW_EDMA_PCIE is not set
CONFIG_HSU_DMA=y
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set
#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set
#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options
# CONFIG_AUXDISPLAY is not set
# CONFIG_PANEL is not set
CONFIG_UIO=m
CONFIG_UIO_CIF=m
# CONFIG_UIO_PDRV_GENIRQ is not set
# CONFIG_UIO_DMEM_GENIRQ is not set
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
CONFIG_UIO_NETX=m
# CONFIG_UIO_PRUSS is not set
CONFIG_UIO_MF624=m
# CONFIG_VFIO is not set
CONFIG_IRQ_BYPASS_MANAGER=m
CONFIG_VIRT_DRIVERS=y
CONFIG_VMGENID=y
CONFIG_VBOXGUEST=m
# CONFIG_NITRO_ENCLAVES is not set
CONFIG_VIRTIO=m
CONFIG_VIRTIO_PCI_LIB=m
CONFIG_VIRTIO_PCI_LIB_LEGACY=m
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_PMEM is not set
CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_INPUT=m
CONFIG_VIRTIO_MMIO=m
# CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES is not set
CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
# CONFIG_VDPA is not set
CONFIG_VHOST_IOTLB=m
CONFIG_VHOST=m
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_SCSI=m
CONFIG_VHOST_VSOCK=m
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# end of Microsoft Hyper-V guest support
# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_HUAWEI_WMI is not set
CONFIG_MXM_WMI=m
# CONFIG_PEAQ_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_YOGABOOK_WMI is not set
CONFIG_ACERHDF=m
# CONFIG_ACER_WIRELESS is not set
CONFIG_ACER_WMI=m
# CONFIG_AMD_PMC is not set
# CONFIG_ADV_SWBUTTON is not set
CONFIG_APPLE_GMUX=m
CONFIG_ASUS_LAPTOP=m
CONFIG_ASUS_WIRELESS=m
CONFIG_ASUS_WMI=m
CONFIG_ASUS_NB_WMI=m
# CONFIG_ASUS_TF103C_DOCK is not set
CONFIG_EEEPC_LAPTOP=m
CONFIG_EEEPC_WMI=m
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
CONFIG_FUJITSU_LAPTOP=m
CONFIG_FUJITSU_TABLET=m
CONFIG_GPD_POCKET_FAN=m
CONFIG_HP_ACCEL=m
# CONFIG_WIRELESS_HOTKEY is not set
CONFIG_HP_WMI=m
CONFIG_TC1100_WMI=m
CONFIG_IBM_RTL=m
CONFIG_SENSORS_HDAPS=m
CONFIG_THINKPAD_ACPI=m
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
# CONFIG_THINKPAD_LMI is not set
CONFIG_INTEL_ATOMISP2_PDX86=y
# CONFIG_INTEL_ATOMISP2_LED is not set
CONFIG_INTEL_ATOMISP2_PM=m
# CONFIG_INTEL_SAR_INT1092 is not set
# CONFIG_INTEL_SKL_INT3472 is not set
# CONFIG_INTEL_PMC_CORE is not set
# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
# CONFIG_INTEL_WMI_THUNDERBOLT is not set
CONFIG_INTEL_HID_EVENT=m
CONFIG_INTEL_VBTN=m
CONFIG_INTEL_INT0002_VGPIO=m
# CONFIG_INTEL_PUNIT_IPC is not set
CONFIG_INTEL_RST=m
CONFIG_INTEL_SMARTCONNECT=m
# CONFIG_INTEL_VSEC is not set
CONFIG_MSI_WMI=m
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_BARCO_P50_GPIO is not set
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_SAMSUNG_Q10=m
CONFIG_TOSHIBA_BT_RFKILL=m
CONFIG_TOSHIBA_HAPS=m
# CONFIG_TOSHIBA_WMI is not set
CONFIG_ACPI_CMPC=m
# CONFIG_LG_LAPTOP is not set
CONFIG_PANASONIC_LAPTOP=m
# CONFIG_SYSTEM76_ACPI is not set
CONFIG_TOPSTAR_LAPTOP=m
# CONFIG_SERIAL_MULTI_INSTANTIATE is not set
# CONFIG_MLX_PLATFORM is not set
# CONFIG_X86_ANDROID_TABLETS is not set
CONFIG_INTEL_IPS=m
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
CONFIG_PMC_ATOM=y
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_SURFACE_PLATFORMS=y
# CONFIG_SURFACE3_WMI is not set
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_GPE is not set
# CONFIG_SURFACE_HOTPLUG is not set
CONFIG_SURFACE_PRO3_BUTTON=m
# CONFIG_SURFACE_AGGREGATOR is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_HWSPINLOCK is not set
#
# Clock Source drivers
#
CONFIG_CLKSRC_I8253=y
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support
# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_INTEL_IOMMU is not set
# CONFIG_VIRTIO_IOMMU is not set
#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers
#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers
# CONFIG_SOUNDWIRE is not set
#
# SOC (System On Chip) specific Drivers
#
#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers
#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers
#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers
#
# i.MX SoC drivers
#
# end of i.MX SoC drivers
#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers
#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers
# CONFIG_SOC_TI is not set
#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers
CONFIG_PM_DEVFREQ=y
#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=m
# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
# CONFIG_DEVFREQ_GOV_POWERSAVE is not set
# CONFIG_DEVFREQ_GOV_USERSPACE is not set
# CONFIG_DEVFREQ_GOV_PASSIVE is not set
#
# DEVFREQ Drivers
#
# CONFIG_PM_DEVFREQ_EVENT is not set
CONFIG_EXTCON=m
#
# Extcon Device Drivers
#
# CONFIG_EXTCON_AXP288 is not set
# CONFIG_EXTCON_FSA9480 is not set
# CONFIG_EXTCON_GPIO is not set
# CONFIG_EXTCON_INTEL_INT3496 is not set
# CONFIG_EXTCON_MAX3355 is not set
# CONFIG_EXTCON_PTN5150 is not set
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
# CONFIG_EXTCON_USB_GPIO is not set
# CONFIG_EXTCON_USBC_TUSB320 is not set
CONFIG_MEMORY=y
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
# CONFIG_PWM_DWC is not set
CONFIG_PWM_LPSS=m
# CONFIG_PWM_LPSS_PCI is not set
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set
#
# IRQ chip support
#
# end of IRQ chip support
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem
CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL_CORE=m
CONFIG_INTEL_RAPL=m
# CONFIG_IDLE_INJECT is not set
# CONFIG_MCB is not set
#
# Performance monitor support
#
# end of Performance monitor support
CONFIG_RAS=y
# CONFIG_USB4 is not set
#
# Android
#
# CONFIG_ANDROID is not set
# end of Android
CONFIG_LIBNVDIMM=m
CONFIG_BLK_DEV_PMEM=m
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=m
CONFIG_BTT=y
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_RMEM is not set
#
# HW tracing support
#
# CONFIG_STM is not set
CONFIG_INTEL_TH=m
CONFIG_INTEL_TH_PCI=m
# CONFIG_INTEL_TH_ACPI is not set
CONFIG_INTEL_TH_GTH=m
CONFIG_INTEL_TH_MSU=m
CONFIG_INTEL_TH_PTI=m
# CONFIG_INTEL_TH_DEBUG is not set
# end of HW tracing support
# CONFIG_FPGA is not set
# CONFIG_TEE is not set
CONFIG_PM_OPP=y
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set
# CONFIG_PECI is not set
# end of Device Drivers
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
CONFIG_EXT2_FS=m
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
# CONFIG_JFS_DEBUG is not set
# CONFIG_JFS_STATISTICS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_SUPPORT_V4=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
# CONFIG_XFS_ONLINE_SCRUB is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_BTRFS_FS_REF_VERIFY is not set
CONFIG_NILFS2_FS=m
CONFIG_F2FS_FS=m
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_FS_POSIX_ACL=y
CONFIG_F2FS_FS_SECURITY=y
# CONFIG_F2FS_CHECK_FS is not set
# CONFIG_F2FS_FAULT_INJECTION is not set
# CONFIG_F2FS_FS_COMPRESSION is not set
CONFIG_F2FS_IOSTAT=y
# CONFIG_F2FS_UNFAIR_RWSEM is not set
# CONFIG_ZONEFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
# CONFIG_AUTOFS4_FS is not set
CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
# CONFIG_VIRTIO_FS is not set
CONFIG_OVERLAY_FS=m
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y
# CONFIG_OVERLAY_FS_INDEX is not set
# CONFIG_OVERLAY_FS_METACOPY is not set
#
# Caches
#
CONFIG_NETFS_SUPPORT=m
CONFIG_NETFS_STATS=y
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_DEBUG is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_ERROR_INJECTION is not set
# end of Caches
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
# end of CD-ROM/DVD Filesystems
#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
CONFIG_FAT_DEFAULT_UTF8=y
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
# CONFIG_PROC_VMCORE_DEVICE_DUMP is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_MEMFD_CREATE=y
CONFIG_CONFIGFS_FS=m
CONFIG_EFIVAR_FS=m
# end of Pseudo filesystems
CONFIG_MISC_FILESYSTEMS=y
CONFIG_ORANGEFS_FS=m
CONFIG_ADFS_FS=m
# CONFIG_ADFS_FS_RW is not set
CONFIG_AFFS_FS=m
CONFIG_ECRYPT_FS=m
CONFIG_ECRYPT_FS_MESSAGING=y
CONFIG_HFS_FS=m
CONFIG_HFSPLUS_FS=m
CONFIG_BEFS_FS=m
# CONFIG_BEFS_DEBUG is not set
CONFIG_BFS_FS=m
CONFIG_EFS_FS=m
CONFIG_CRAMFS=m
CONFIG_CRAMFS_BLOCKDEV=y
CONFIG_SQUASHFS=m
CONFIG_SQUASHFS_FILE_CACHE=y
# CONFIG_SQUASHFS_FILE_DIRECT is not set
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
CONFIG_SQUASHFS_LZ4=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
CONFIG_SQUASHFS_ZSTD=y
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
CONFIG_VXFS_FS=m
CONFIG_MINIX_FS=m
CONFIG_OMFS_FS=m
CONFIG_HPFS_FS=m
CONFIG_QNX4FS_FS=m
CONFIG_QNX6FS_FS=m
# CONFIG_QNX6FS_DEBUG is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_DEFLATE_COMPRESS=y
# CONFIG_PSTORE_LZO_COMPRESS is not set
# CONFIG_PSTORE_LZ4_COMPRESS is not set
# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
# CONFIG_PSTORE_842_COMPRESS is not set
# CONFIG_PSTORE_ZSTD_COMPRESS is not set
CONFIG_PSTORE_COMPRESS=y
CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
# CONFIG_PSTORE_BLK is not set
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
# CONFIG_EROFS_FS is not set
# CONFIG_VBOXSF_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
CONFIG_NFS_SWAP=y
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFS_V4_2_READ_PLUS is not set
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_PNFS=y
CONFIG_NFSD_BLOCKLAYOUT=y
# CONFIG_NFSD_SCSILAYOUT is not set
# CONFIG_NFSD_FLEXFILELAYOUT is not set
# CONFIG_NFSD_V4_2_INTER_SSC is not set
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_V4_2_SSC_HELPER=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_SUNRPC_SWAP=y
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES is not set
CONFIG_SUNRPC_DEBUG=y
CONFIG_CEPH_FS=m
CONFIG_CEPH_FSCACHE=y
CONFIG_CEPH_FS_POSIX_ACL=y
# CONFIG_CEPH_FS_SECURITY_LABEL is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SWN_UPCALL is not set
CONFIG_CIFS_FSCACHE=y
# CONFIG_SMB_SERVER is not set
CONFIG_SMBFS_COMMON=m
CONFIG_CODA_FS=m
CONFIG_AFS_FS=m
# CONFIG_AFS_DEBUG is not set
CONFIG_AFS_FSCACHE=y
# CONFIG_AFS_DEBUG_CURSOR is not set
CONFIG_9P_FS=m
CONFIG_9P_FSCACHE=y
CONFIG_9P_FS_POSIX_ACL=y
CONFIG_9P_FS_SECURITY=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
CONFIG_NLS_MAC_CELTIC=m
CONFIG_NLS_MAC_CENTEURO=m
CONFIG_NLS_MAC_CROATIAN=m
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=m
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
CONFIG_NLS_MAC_TURKISH=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_TRUSTED_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_SECURITY_DMESG_RESTRICT=y
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_PAGE_TABLE_ISOLATION=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_PATH=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_FORTIFY_SOURCE=y
# CONFIG_STATIC_USERMODEHELPER is not set
# CONFIG_SECURITY_SELINUX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
CONFIG_SECURITY_APPARMOR=y
CONFIG_SECURITY_APPARMOR_HASH=y
CONFIG_SECURITY_APPARMOR_HASH_DEFAULT=y
# CONFIG_SECURITY_APPARMOR_DEBUG is not set
# CONFIG_SECURITY_LOADPIN is not set
CONFIG_SECURITY_YAMA=y
# CONFIG_SECURITY_SAFESETID is not set
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
CONFIG_INTEGRITY=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
# CONFIG_INTEGRITY_TRUSTED_KEYRING is not set
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_IMA is not set
# CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY is not set
# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_APPARMOR=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,apparmor,selinux,smack,tomoyo,bpf"
#
# Kernel hardening options
#
#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_GCC_PLUGIN_STRUCTLEAK_USER is not set
# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF is not set
# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL is not set
# CONFIG_GCC_PLUGIN_STACKLEAK is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization
# end of Kernel hardening options
# end of Security options
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=m
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=m
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=m
CONFIG_CRYPTO_ENGINE=m
#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=y
# CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set
CONFIG_CRYPTO_ECC=m
CONFIG_CRYPTO_ECDH=m
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_SEQIV=m
CONFIG_CRYPTO_ECHAINIV=m
#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CFB is not set
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_OFB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
# CONFIG_CRYPTO_KEYWRAP is not set
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ESSIV=m
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_CRC32C_INTEL=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRC32_PCLMUL=m
CONFIG_CRYPTO_XXHASH=m
CONFIG_CRYPTO_BLAKE2B=m
# CONFIG_CRYPTO_BLAKE2S is not set
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRC64_ROCKSOFT=m
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_POLY1305=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_SHA3=m
# CONFIG_CRYPTO_SM3 is not set
# CONFIG_CRYPTO_STREEBOG is not set
CONFIG_CRYPTO_WP512=m
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
CONFIG_CRYPTO_AES_NI_INTEL=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SERPENT_SSE2_586=m
CONFIG_CRYPTO_SM4=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_TWOFISH_586=m
#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
# CONFIG_CRYPTO_ZSTD is not set
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=m
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=m
CONFIG_CRYPTO_JITTERENTROPY=m
CONFIG_CRYPTO_KDF800108_CTR=y
CONFIG_CRYPTO_USER_API=m
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# CONFIG_CRYPTO_STATS is not set
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=m
CONFIG_CRYPTO_DEV_PADLOCK_AES=m
CONFIG_CRYPTO_DEV_PADLOCK_SHA=m
CONFIG_CRYPTO_DEV_GEODE=m
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
CONFIG_CRYPTO_DEV_CCP=y
CONFIG_CRYPTO_DEV_CCP_DD=m
CONFIG_CRYPTO_DEV_SP_CCP=y
CONFIG_CRYPTO_DEV_CCP_CRYPTO=m
# CONFIG_CRYPTO_DEV_CCP_DEBUGFS is not set
CONFIG_CRYPTO_DEV_QAT=m
CONFIG_CRYPTO_DEV_QAT_DH895xCC=m
CONFIG_CRYPTO_DEV_QAT_C3XXX=m
CONFIG_CRYPTO_DEV_QAT_C62X=m
# CONFIG_CRYPTO_DEV_QAT_4XXX is not set
CONFIG_CRYPTO_DEV_QAT_DH895xCCVF=m
CONFIG_CRYPTO_DEV_QAT_C3XXXVF=m
CONFIG_CRYPTO_DEV_QAT_C62XVF=m
CONFIG_CRYPTO_DEV_CHELSIO=m
CONFIG_CRYPTO_DEV_VIRTIO=m
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_TEST_KEY is not set
# CONFIG_SIGNED_PE_FILE_VERIFICATION is not set
#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
CONFIG_MODULE_SIG_KEY_TYPE_RSA=y
# CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
CONFIG_SECONDARY_TRUSTED_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
# CONFIG_SYSTEM_REVOCATION_LIST is not set
# end of Certificates for signature checking
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_RAID6_PQ_BENCHMARK=y
CONFIG_LINEAR_RANGES=y
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_CORDIC=m
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=m
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=m
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=m
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA256=y
CONFIG_CRYPTO_LIB_SM4=m
# end of Crypto library routines
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=y
CONFIG_CRC64_ROCKSOFT=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC64=m
# CONFIG_CRC4 is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=m
CONFIG_XXHASH=y
CONFIG_AUDIT_GENERIC=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=m
CONFIG_LZ4HC_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
# CONFIG_XZ_DEC_POWERPC is not set
# CONFIG_XZ_DEC_IA64 is not set
# CONFIG_XZ_DEC_ARM is not set
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_SPARC is not set
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_ENC8=y
CONFIG_REED_SOLOMON_DEC8=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_SWIOTLB=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_LRU_CACHE=m
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_SIGNATURE=y
CONFIG_DIMLIB=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_32=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SG_POOL=y
CONFIG_MEMREGION=y
CONFIG_ARCH_STACKWALK=y
CONFIG_SBITMAP=y
# end of Library routines
CONFIG_PLDMFW=y
#
# Kernel hacking
#
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y
#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO_NONE=y
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_FRAME_WARN=1024
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_FRAME_POINTER=y
# CONFIG_VMLINUX_MAP is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options
#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x01b6
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_UBSAN is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments
#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# end of Networking Debugging
#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_OWNER is not set
CONFIG_PAGE_POISONING=y
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
CONFIG_DEBUG_WX=y
CONFIG_GENERIC_PTDUMP=y
CONFIG_PTDUMP_CORE=y
# CONFIG_PTDUMP_DEBUGFS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
CONFIG_SCHED_STACK_END_CHECK=y
# CONFIG_DEBUG_VM is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
# CONFIG_DEBUG_KMAP_LOCAL is not set
CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y
# CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP is not set
# CONFIG_DEBUG_HIGHMEM is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging
# CONFIG_DEBUG_SHIRQ is not set
#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs
#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging
# CONFIG_DEBUG_TIMEKEEPING is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set
#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_BUG_ON_DATA_CORRUPTION=y
# end of Debug kernel data structures
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_RETHOOK=y
CONFIG_RETHOOK=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
# CONFIG_FPROBE is not set
# CONFIG_FUNCTION_PROFILER is not set
CONFIG_STACK_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_HWLAT_TRACER is not set
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
CONFIG_MMIOTRACE=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENTS=y
# CONFIG_KPROBE_EVENTS_ON_NOTRACE is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
# CONFIG_BPF_KPROBE_OVERRIDE is not set
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_MCOUNT_USE_CC=y
CONFIG_TRACING_MAP=y
CONFIG_SYNTH_EVENTS=y
CONFIG_HIST_TRIGGERS=y
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_FTRACE_RECORD_RECURSION is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_FTRACE_SORT_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_MMIOTRACE_TEST is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_SYNTH_EVENT_GEN_TEST is not set
# CONFIG_KPROBE_EVENT_GEN_TEST is not set
# CONFIG_HIST_TRIGGERS_DEBUG is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_SAMPLES is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
CONFIG_IO_STRICT_DEVMEM=y
#
# x86 Debugging
#
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_USB_XDBC=y
# CONFIG_EFI_PGT_DUMP is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
CONFIG_X86_DEBUG_FPU=y
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_FRAME_POINTER=y
# CONFIG_UNWINDER_GUESS is not set
# end of x86 Debugging
#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
CONFIG_NOTIFIER_ERROR_INJECTION=m
CONFIG_PM_NOTIFIER_ERROR_INJECT=m
# CONFIG_NETDEV_NOTIFIER_ERROR_INJECT is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
# CONFIG_FAULT_INJECTION is not set
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_STRING_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_STRSCPY is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_SIPHASH is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
# CONFIG_TEST_FPU is not set
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
CONFIG_ARCH_USE_MEMTEST=y
CONFIG_MEMTEST=y
# end of Kernel Testing and Coverage
# end of Kernel hacking
[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 4593 bytes --]
#!/bin/sh
export_top_env()
{
export suite='boot'
export testcase='boot'
export category='functional'
export timeout='10m'
export job_origin='boot.yaml'
export queue_cmdline_keys='branch
commit'
export queue='bisect'
export testbox='vm-snb-i386-30'
export tbox_group='vm-snb-i386'
export branch='linux-devel/devel-hourly-20220426-075053'
export commit='7d3fafb75102c0e8d5282487c2822d0f3b301aa9'
export kconfig='i386-debian-10.3'
export nr_vm=160
export submit_id='6267eea9f52f43524b61aa73'
export job_file='/lkp/jobs/scheduled/vm-snb-i386-30/boot-1-quantal-i386-core-20190426.cgz-7d3fafb75102c0e8d5282487c2822d0f3b301aa9-20220426-21067-1l5apj5-2.yaml'
export id='eefc2448fe6cd149fd2718bb9781be8bf2c66bfc'
export queuer_version='/zday/lkp'
export model='qemu-system-i386 -enable-kvm -cpu SandyBridge'
export nr_cpu=2
export memory='4G'
export need_kconfig=\{\"KVM_GUEST\"\=\>\"y\"\}
export ssh_base_port=23400
export kernel_cmdline='vmalloc=128M initramfs_async=0 page_owner=on'
export rootfs='quantal-i386-core-20190426.cgz'
export compiler='gcc-11'
export enqueue_time='2022-04-26 21:07:53 +0800'
export _id='6267f015f52f43524b61aa75'
export _rt='/result/boot/1/vm-snb-i386/quantal-i386-core-20190426.cgz/i386-debian-10.3/gcc-11/7d3fafb75102c0e8d5282487c2822d0f3b301aa9'
export user='lkp'
export LKP_SERVER='internal-lkp-server'
export result_root='/result/boot/1/vm-snb-i386/quantal-i386-core-20190426.cgz/i386-debian-10.3/gcc-11/7d3fafb75102c0e8d5282487c2822d0f3b301aa9/21'
export scheduler_version='/lkp/lkp/.src-20220425-212427'
export arch='i386'
export max_uptime=600
export initrd='/osimage/quantal/quantal-i386-core-20190426.cgz'
export bootloader_append='root=/dev/ram0
RESULT_ROOT=/result/boot/1/vm-snb-i386/quantal-i386-core-20190426.cgz/i386-debian-10.3/gcc-11/7d3fafb75102c0e8d5282487c2822d0f3b301aa9/21
BOOT_IMAGE=/pkg/linux/i386-debian-10.3/gcc-11/7d3fafb75102c0e8d5282487c2822d0f3b301aa9/vmlinuz-5.18.0-rc3-00017-g7d3fafb75102
branch=linux-devel/devel-hourly-20220426-075053
job=/lkp/jobs/scheduled/vm-snb-i386-30/boot-1-quantal-i386-core-20190426.cgz-7d3fafb75102c0e8d5282487c2822d0f3b301aa9-20220426-21067-1l5apj5-2.yaml
user=lkp
ARCH=i386
kconfig=i386-debian-10.3
commit=7d3fafb75102c0e8d5282487c2822d0f3b301aa9
vmalloc=128M initramfs_async=0 page_owner=on
max_uptime=600
LKP_SERVER=internal-lkp-server
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
export modules_initrd='/pkg/linux/i386-debian-10.3/gcc-11/7d3fafb75102c0e8d5282487c2822d0f3b301aa9/modules.cgz'
export lkp_initrd='/osimage/user/lkp/lkp-i386.cgz'
export site='inn'
export LKP_CGI_PORT=80
export LKP_CIFS_PORT=139
export schedule_notify_address=
export kernel='/pkg/linux/i386-debian-10.3/gcc-11/7d3fafb75102c0e8d5282487c2822d0f3b301aa9/vmlinuz-5.18.0-rc3-00017-g7d3fafb75102'
export dequeue_time='2022-04-26 21:30:03 +0800'
export job_initrd='/lkp/jobs/scheduled/vm-snb-i386-30/boot-1-quantal-i386-core-20190426.cgz-7d3fafb75102c0e8d5282487c2822d0f3b301aa9-20220426-21067-1l5apj5-2.cgz'
[ -n "$LKP_SRC" ] ||
export LKP_SRC=/lkp/${user:-lkp}/src
}
run_job()
{
echo $$ > $TMP/run-job.pid
. $LKP_SRC/lib/http.sh
. $LKP_SRC/lib/job.sh
. $LKP_SRC/lib/env.sh
export_top_env
run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-slabinfo
run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-meminfo
run_monitor $LKP_SRC/monitors/one-shot/wrapper memmap
run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
run_monitor $LKP_SRC/monitors/wrapper kmsg
run_monitor $LKP_SRC/monitors/wrapper heartbeat
run_monitor $LKP_SRC/monitors/wrapper meminfo
run_monitor $LKP_SRC/monitors/wrapper oom-killer
run_monitor $LKP_SRC/monitors/plain/watchdog
run_test $LKP_SRC/tests/wrapper sleep 1
}
extract_stats()
{
export stats_part_begin=
export stats_part_end=
$LKP_SRC/stats/wrapper boot-slabinfo
$LKP_SRC/stats/wrapper boot-meminfo
$LKP_SRC/stats/wrapper memmap
$LKP_SRC/stats/wrapper boot-memory
$LKP_SRC/stats/wrapper boot-time
$LKP_SRC/stats/wrapper kernel-size
$LKP_SRC/stats/wrapper kmsg
$LKP_SRC/stats/wrapper sleep
$LKP_SRC/stats/wrapper meminfo
$LKP_SRC/stats/wrapper time sleep.time
$LKP_SRC/stats/wrapper dmesg
$LKP_SRC/stats/wrapper kmsg
$LKP_SRC/stats/wrapper last_state
$LKP_SRC/stats/wrapper stderr
$LKP_SRC/stats/wrapper time
}
"$@"
[-- Attachment #4: dmesg.xz --]
[-- Type: application/x-xz, Size: 14360 bytes --]
^ permalink raw reply [flat|nested] 38+ messages in thread
end of thread, other threads:[~2022-04-27 0:51 UTC | newest]
Thread overview: 38+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-12 11:44 [PATCH 0/5] ptrace-vs-PREEMPT_RT and freezer rewrite Peter Zijlstra
2022-04-12 11:44 ` [PATCH 1/5] sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state Peter Zijlstra
2022-04-13 13:29 ` Oleg Nesterov
2022-04-13 16:47 ` Peter Zijlstra
2022-04-12 11:44 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
2022-04-13 13:24 ` Oleg Nesterov
2022-04-13 16:58 ` Peter Zijlstra
2022-04-13 18:57 ` Oleg Nesterov
2022-04-13 18:59 ` Oleg Nesterov
2022-04-13 19:20 ` Peter Zijlstra
2022-04-13 19:56 ` Peter Zijlstra
2022-04-14 11:54 ` Oleg Nesterov
2022-04-14 12:08 ` Oleg Nesterov
2022-04-14 18:34 ` Oleg Nesterov
2022-04-14 22:45 ` Peter Zijlstra
2022-04-15 10:16 ` Oleg Nesterov
2022-04-15 10:57 ` Oleg Nesterov
2022-04-15 12:01 ` Peter Zijlstra
2022-04-18 17:01 ` Oleg Nesterov
2022-04-18 17:19 ` Oleg Nesterov
2022-04-20 13:17 ` Peter Zijlstra
2022-04-20 18:03 ` Oleg Nesterov
2022-04-20 20:54 ` [RFC][PATCH] ptrace: Don't change __state Eric W. Biederman
2022-04-21 7:21 ` Peter Zijlstra
2022-04-21 10:26 ` Peter Zijlstra
2022-04-21 10:49 ` Oleg Nesterov
2022-04-21 11:50 ` Peter Zijlstra
2022-04-21 14:45 ` Eric W. Biederman
2022-04-21 9:46 ` Oleg Nesterov
2022-04-21 15:01 ` Eric W. Biederman
2022-04-27 0:51 ` [ptrace] [confidence: ] 7d3fafb751: BUG:sleeping_function_called_from_invalid_context_at_arch/x86/entry/common.c kernel test robot
2022-04-20 10:20 ` [PATCH 2/5] sched,ptrace: Fix ptrace_check_attach() vs PREEMPT_RT Peter Zijlstra
2022-04-20 11:35 ` Oleg Nesterov
2022-04-15 12:00 ` Peter Zijlstra
2022-04-15 12:56 ` Oleg Nesterov
2022-04-12 11:44 ` [PATCH 3/5] freezer: Have {,un}lock_system_sleep() save/restore flags Peter Zijlstra
2022-04-12 11:44 ` [PATCH 4/5] freezer,umh: Clean up freezer/initrd interaction Peter Zijlstra
2022-04-12 11:44 ` [PATCH 5/5] freezer,sched: Rewrite core freezer logic Peter Zijlstra
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