From: Chris Metcalf <cmetcalf@ezchip.com>
To: Gilad Ben Yossef <giladb@ezchip.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>, Tejun Heo <tj@kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Christoph Lameter <cl@linux.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Subject: [PATCH v4 4/5] nohz: add cpu_isolated_debug boot flag
Date: Mon, 13 Jul 2015 15:58:00 -0400 [thread overview]
Message-ID: <1436817481-8732-5-git-send-email-cmetcalf@ezchip.com> (raw)
In-Reply-To: <1436817481-8732-1-git-send-email-cmetcalf@ezchip.com>
This flag simplifies debugging of NO_HZ_FULL kernels when processes
are running in PR_CPU_ISOLATED_ENABLE mode. Such processes should
get no interrupts from the kernel, and if they do, when this boot
flag is specified a kernel stack dump on the console is generated.
It's possible to use ftrace to simply detect whether a cpu_isolated core
has unexpectedly entered the kernel. But what this boot flag does
is allow the kernel to provide better diagnostics, e.g. by reporting
in the IPI-generating code what remote core and context is preparing
to deliver an interrupt to a cpu_isolated core.
It may be worth considering other ways to generate useful debugging
output rather than console spew, but for now that is simple and direct.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
---
Documentation/kernel-parameters.txt | 6 ++++++
arch/tile/mm/homecache.c | 5 ++++-
include/linux/tick.h | 2 ++
kernel/irq_work.c | 4 +++-
kernel/sched/core.c | 18 ++++++++++++++++++
kernel/signal.c | 5 +++++
kernel/smp.c | 4 ++++
kernel/softirq.c | 6 ++++++
8 files changed, 48 insertions(+), 2 deletions(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1d6f0459cd7b..76e8e2ff4a0a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -749,6 +749,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
/proc/<pid>/coredump_filter.
See also Documentation/filesystems/proc.txt.
+ cpu_isolated_debug [KNL]
+ In kernels built with CONFIG_NO_HZ_FULL and booted
+ in nohz_full= mode, this setting will generate console
+ backtraces when the kernel is about to interrupt a
+ task that has requested PR_CPU_ISOLATED_ENABLE.
+
cpuidle.off=1 [CPU_IDLE]
disable the cpuidle sub-system
diff --git a/arch/tile/mm/homecache.c b/arch/tile/mm/homecache.c
index 40ca30a9fee3..f336880e1b01 100644
--- a/arch/tile/mm/homecache.c
+++ b/arch/tile/mm/homecache.c
@@ -31,6 +31,7 @@
#include <linux/smp.h>
#include <linux/module.h>
#include <linux/hugetlb.h>
+#include <linux/tick.h>
#include <asm/page.h>
#include <asm/sections.h>
@@ -83,8 +84,10 @@ static void hv_flush_update(const struct cpumask *cache_cpumask,
* Don't bother to update atomically; losing a count
* here is not that critical.
*/
- for_each_cpu(cpu, &mask)
+ for_each_cpu(cpu, &mask) {
++per_cpu(irq_stat, cpu).irq_hv_flush_count;
+ tick_nohz_cpu_isolated_debug(cpu);
+ }
}
/*
diff --git a/include/linux/tick.h b/include/linux/tick.h
index f79f6945f762..ed65551e2315 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -159,6 +159,7 @@ extern void __tick_nohz_task_switch(struct task_struct *tsk);
extern void tick_nohz_cpu_isolated_enter(void);
extern void tick_nohz_cpu_isolated_syscall(int nr);
extern void tick_nohz_cpu_isolated_exception(void);
+extern void tick_nohz_cpu_isolated_debug(int cpu);
#else
static inline bool tick_nohz_full_enabled(void) { return false; }
static inline bool tick_nohz_full_cpu(int cpu) { return false; }
@@ -172,6 +173,7 @@ static inline bool tick_nohz_is_cpu_isolated(void) { return false; }
static inline void tick_nohz_cpu_isolated_enter(void) { }
static inline void tick_nohz_cpu_isolated_syscall(int nr) { }
static inline void tick_nohz_cpu_isolated_exception(void) { }
+static inline void tick_nohz_cpu_isolated_debug(int cpu) { }
#endif
static inline bool is_housekeeping_cpu(int cpu)
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index cbf9fb899d92..7f35c90346de 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -75,8 +75,10 @@ bool irq_work_queue_on(struct irq_work *work, int cpu)
if (!irq_work_claim(work))
return false;
- if (llist_add(&work->llnode, &per_cpu(raised_list, cpu)))
+ if (llist_add(&work->llnode, &per_cpu(raised_list, cpu))) {
+ tick_nohz_cpu_isolated_debug(cpu);
arch_send_call_function_single_ipi(cpu);
+ }
return true;
}
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 78b4bad10081..c8388f9206b2 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -743,6 +743,24 @@ bool sched_can_stop_tick(void)
return true;
}
+
+/* Enable debugging of any interrupts of cpu_isolated cores. */
+static int cpu_isolated_debug;
+static int __init cpu_isolated_debug_func(char *str)
+{
+ cpu_isolated_debug = true;
+ return 1;
+}
+__setup("cpu_isolated_debug", cpu_isolated_debug_func);
+
+void tick_nohz_cpu_isolated_debug(int cpu)
+{
+ if (cpu_isolated_debug && tick_nohz_full_cpu(cpu) &&
+ (cpu_curr(cpu)->cpu_isolated_flags & PR_CPU_ISOLATED_ENABLE)) {
+ pr_err("Interrupt detected for cpu_isolated cpu %d\n", cpu);
+ dump_stack();
+ }
+}
#endif /* CONFIG_NO_HZ_FULL */
void sched_avg_update(struct rq *rq)
diff --git a/kernel/signal.c b/kernel/signal.c
index 836df8dac6cc..90ee460c2586 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -684,6 +684,11 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
*/
void signal_wake_up_state(struct task_struct *t, unsigned int state)
{
+#ifdef CONFIG_NO_HZ_FULL
+ /* If the task is being killed, don't complain about cpu_isolated. */
+ if (state & TASK_WAKEKILL)
+ t->cpu_isolated_flags = 0;
+#endif
set_tsk_thread_flag(t, TIF_SIGPENDING);
/*
* TASK_WAKEKILL also means wake it up in the stopped/traced/killable
diff --git a/kernel/smp.c b/kernel/smp.c
index 07854477c164..6b7d8e2c8af4 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -14,6 +14,7 @@
#include <linux/smp.h>
#include <linux/cpu.h>
#include <linux/sched.h>
+#include <linux/tick.h>
#include "smpboot.h"
@@ -178,6 +179,7 @@ static int generic_exec_single(int cpu, struct call_single_data *csd,
* locking and barrier primitives. Generic code isn't really
* equipped to do the right thing...
*/
+ tick_nohz_cpu_isolated_debug(cpu);
if (llist_add(&csd->llist, &per_cpu(call_single_queue, cpu)))
arch_send_call_function_single_ipi(cpu);
@@ -457,6 +459,8 @@ void smp_call_function_many(const struct cpumask *mask,
}
/* Send a message to all CPUs in the map */
+ for_each_cpu(cpu, cfd->cpumask)
+ tick_nohz_cpu_isolated_debug(cpu);
arch_send_call_function_ipi_mask(cfd->cpumask);
if (wait) {
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 479e4436f787..333872925ff6 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -24,6 +24,7 @@
#include <linux/ftrace.h>
#include <linux/smp.h>
#include <linux/smpboot.h>
+#include <linux/context_tracking.h>
#include <linux/tick.h>
#include <linux/irq.h>
@@ -335,6 +336,11 @@ void irq_enter(void)
_local_bh_enable();
}
+ if (context_tracking_cpu_is_enabled() &&
+ context_tracking_in_user() &&
+ !in_interrupt())
+ tick_nohz_cpu_isolated_debug(smp_processor_id());
+
__irq_enter();
}
--
2.1.2
next prev parent reply other threads:[~2015-07-13 19:58 UTC|newest]
Thread overview: 236+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-08 17:58 [PATCH 0/6] support "dataplane" mode for nohz_full Chris Metcalf
2015-05-08 17:58 ` [PATCH 1/6] nohz_full: add support for "dataplane" mode Chris Metcalf
2015-05-08 17:58 ` [PATCH 2/6] nohz: dataplane: allow tick to be fully disabled for dataplane Chris Metcalf
2015-05-12 9:26 ` Peter Zijlstra
2015-05-12 13:12 ` Paul E. McKenney
2015-05-14 20:55 ` Chris Metcalf
2015-05-08 17:58 ` [PATCH 3/6] dataplane nohz: run softirqs synchronously on user entry Chris Metcalf
2015-05-09 7:04 ` Mike Galbraith
2015-05-11 20:13 ` Chris Metcalf
2015-05-12 2:21 ` Mike Galbraith
2015-05-12 9:28 ` Peter Zijlstra
2015-05-12 9:32 ` Peter Zijlstra
2015-05-12 13:08 ` Paul E. McKenney
2015-05-08 17:58 ` [PATCH 4/6] nohz: support PR_DATAPLANE_QUIESCE Chris Metcalf
2015-05-12 9:33 ` Peter Zijlstra
2015-05-12 9:50 ` Ingo Molnar
2015-05-12 10:38 ` Peter Zijlstra
2015-05-12 12:52 ` Ingo Molnar
2015-05-13 4:35 ` Andy Lutomirski
2015-05-13 17:51 ` Paul E. McKenney
2015-05-14 20:55 ` Chris Metcalf
2015-05-14 20:54 ` Chris Metcalf
2015-05-08 17:58 ` [PATCH 5/6] nohz: support PR_DATAPLANE_STRICT mode Chris Metcalf
2015-05-09 7:28 ` Andy Lutomirski
2015-05-09 10:37 ` Gilad Ben Yossef
2015-05-11 19:13 ` Chris Metcalf
2015-05-11 22:28 ` Andy Lutomirski
2015-05-12 21:06 ` Chris Metcalf
2015-05-12 22:23 ` Andy Lutomirski
2015-05-15 21:25 ` Chris Metcalf
2015-05-12 9:38 ` Peter Zijlstra
2015-05-12 13:20 ` Paul E. McKenney
2015-05-08 17:58 ` [PATCH 6/6] nohz: add dataplane_debug boot flag Chris Metcalf
2015-05-08 21:18 ` [PATCH 0/6] support "dataplane" mode for nohz_full Andrew Morton
2015-05-08 21:22 ` Steven Rostedt
2015-05-08 23:11 ` Chris Metcalf
2015-05-08 23:19 ` Andrew Morton
2015-05-09 7:05 ` Ingo Molnar
2015-05-09 7:19 ` Andy Lutomirski
2015-05-11 19:54 ` Chris Metcalf
2015-05-11 22:15 ` Andy Lutomirski
[not found] ` <55510885.9070101@ezchip.com>
2015-05-12 13:18 ` Paul E. McKenney
2015-05-09 7:19 ` Mike Galbraith
2015-05-09 10:18 ` Gilad Ben Yossef
2015-05-11 12:57 ` Steven Rostedt
2015-05-11 15:36 ` Frederic Weisbecker
2015-05-11 19:19 ` Mike Galbraith
2015-05-11 19:25 ` Chris Metcalf
2015-05-12 1:47 ` Mike Galbraith
2015-05-12 4:35 ` Mike Galbraith
2015-05-15 15:05 ` Chris Metcalf
2015-05-15 18:44 ` Mike Galbraith
2015-05-26 19:51 ` Chris Metcalf
2015-05-27 3:28 ` Mike Galbraith
2015-05-11 17:19 ` Paul E. McKenney
2015-05-11 17:27 ` Andrew Morton
2015-05-11 17:33 ` Frederic Weisbecker
2015-05-11 18:00 ` Steven Rostedt
2015-05-11 18:09 ` Chris Metcalf
2015-05-11 18:36 ` Steven Rostedt
2015-05-12 9:10 ` CONFIG_ISOLATION=y (was: [PATCH 0/6] support "dataplane" mode for nohz_full) Ingo Molnar
2015-05-12 11:48 ` Peter Zijlstra
2015-05-12 12:34 ` Ingo Molnar
2015-05-12 12:39 ` Peter Zijlstra
2015-05-12 12:43 ` Ingo Molnar
2015-05-12 15:36 ` Frederic Weisbecker
2015-05-12 21:05 ` CONFIG_ISOLATION=y Chris Metcalf
2015-05-12 10:46 ` [PATCH 0/6] support "dataplane" mode for nohz_full Peter Zijlstra
2015-05-15 15:10 ` Chris Metcalf
2015-05-15 21:26 ` [PATCH v2 0/5] support "cpu_isolated" " Chris Metcalf
2015-05-15 21:27 ` [PATCH v2 1/5] nohz_full: add support for "cpu_isolated" mode Chris Metcalf
2015-05-15 21:27 ` [PATCH v2 2/5] nohz: support PR_CPU_ISOLATED_STRICT mode Chris Metcalf
2015-05-15 21:27 ` [PATCH v2 3/5] nohz: cpu_isolated strict mode configurable signal Chris Metcalf
2015-05-15 21:27 ` [PATCH v2 4/5] nohz: add cpu_isolated_debug boot flag Chris Metcalf
2015-05-15 21:27 ` [PATCH v2 5/5] nohz: cpu_isolated: allow tick to be fully disabled Chris Metcalf
2015-05-15 22:17 ` [PATCH v2 1/5] nohz_full: add support for "cpu_isolated" mode Thomas Gleixner
2015-05-28 20:38 ` Chris Metcalf
2015-06-03 15:29 ` [PATCH v3 0/5] support "cpu_isolated" mode for nohz_full Chris Metcalf
2015-06-03 15:29 ` [PATCH v3 1/5] nohz_full: add support for "cpu_isolated" mode Chris Metcalf
2015-06-03 15:29 ` [PATCH v3 2/5] nohz: support PR_CPU_ISOLATED_STRICT mode Chris Metcalf
2015-06-03 15:29 ` [PATCH v3 3/5] nohz: cpu_isolated strict mode configurable signal Chris Metcalf
2015-06-03 15:29 ` [PATCH v3 4/5] nohz: add cpu_isolated_debug boot flag Chris Metcalf
2015-06-03 15:29 ` [PATCH v3 5/5] nohz: cpu_isolated: allow tick to be fully disabled Chris Metcalf
2015-07-13 19:57 ` [PATCH v4 0/5] support "cpu_isolated" mode for nohz_full Chris Metcalf
2015-07-13 19:57 ` [PATCH v4 1/5] nohz_full: add support for "cpu_isolated" mode Chris Metcalf
2015-07-13 20:40 ` Andy Lutomirski
2015-07-13 21:01 ` Chris Metcalf
2015-07-13 21:45 ` Andy Lutomirski
2015-07-21 19:10 ` Chris Metcalf
2015-07-21 19:26 ` Andy Lutomirski
2015-07-21 20:36 ` Paul E. McKenney
2015-07-22 13:57 ` Christoph Lameter
2015-07-22 19:28 ` Paul E. McKenney
2015-07-22 20:02 ` Christoph Lameter
2015-07-24 20:21 ` Chris Metcalf
2015-07-24 20:22 ` Chris Metcalf
2015-07-24 14:03 ` Frederic Weisbecker
2015-07-24 20:19 ` Chris Metcalf
2015-07-24 13:27 ` Frederic Weisbecker
2015-07-24 20:21 ` Chris Metcalf
2015-07-13 19:57 ` [PATCH v4 2/5] nohz: support PR_CPU_ISOLATED_STRICT mode Chris Metcalf
2015-07-13 21:47 ` Andy Lutomirski
2015-07-21 19:34 ` Chris Metcalf
2015-07-21 19:42 ` Andy Lutomirski
2015-07-24 20:29 ` Chris Metcalf
2015-07-13 19:57 ` [PATCH v4 3/5] nohz: cpu_isolated strict mode configurable signal Chris Metcalf
2015-07-13 19:58 ` Chris Metcalf [this message]
2015-07-13 19:58 ` [PATCH v4 5/5] nohz: cpu_isolated: allow tick to be fully disabled Chris Metcalf
2015-07-28 19:49 ` [PATCH v5 0/6] support "cpu_isolated" mode for nohz_full Chris Metcalf
2015-07-28 19:49 ` [PATCH v5 1/6] vmstat: provide a function to quiet down the diff processing Chris Metcalf
2015-07-28 19:49 ` [PATCH v5 2/6] cpu_isolated: add initial support Chris Metcalf
2015-08-12 16:00 ` Frederic Weisbecker
2015-08-12 18:22 ` Chris Metcalf
2015-08-26 15:26 ` Frederic Weisbecker
2015-08-26 15:55 ` Chris Metcalf
2015-07-28 19:49 ` [PATCH v5 3/6] cpu_isolated: support PR_CPU_ISOLATED_STRICT mode Chris Metcalf
2015-07-28 19:49 ` [PATCH v5 4/6] cpu_isolated: provide strict mode configurable signal Chris Metcalf
2015-07-28 19:49 ` [PATCH v5 5/6] cpu_isolated: add debug boot flag Chris Metcalf
2015-07-28 19:49 ` [PATCH v5 6/6] nohz: cpu_isolated: allow tick to be fully disabled Chris Metcalf
2015-08-25 19:55 ` [PATCH v6 0/6] support "task_isolated" mode for nohz_full Chris Metcalf
2015-08-25 19:55 ` [PATCH v6 1/6] vmstat: provide a function to quiet down the diff processing Chris Metcalf
2015-08-25 19:55 ` [PATCH v6 2/6] task_isolation: add initial support Chris Metcalf
2015-08-25 19:55 ` [PATCH v6 3/6] task_isolation: support PR_TASK_ISOLATION_STRICT mode Chris Metcalf
2015-08-26 10:36 ` Will Deacon
2015-08-26 15:10 ` Chris Metcalf
2015-09-02 10:13 ` Will Deacon
2015-08-28 15:31 ` [PATCH v6.1 " Chris Metcalf
2015-08-25 19:55 ` [PATCH v6 4/6] task_isolation: provide strict mode configurable signal Chris Metcalf
2015-08-28 19:22 ` Andy Lutomirski
2015-09-02 18:38 ` [PATCH v6.2 3/6] task_isolation: support PR_TASK_ISOLATION_STRICT mode Chris Metcalf
2015-08-25 19:55 ` [PATCH v6 5/6] task_isolation: add debug boot flag Chris Metcalf
2015-08-25 19:55 ` [PATCH v6 6/6] nohz: task_isolation: allow tick to be fully disabled Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 00/11] support "task_isolated" mode for nohz_full Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 01/11] vmstat: provide a function to quiet down the diff processing Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 02/11] task_isolation: add initial support Chris Metcalf
2015-10-01 12:14 ` Frederic Weisbecker
2015-10-01 12:18 ` Thomas Gleixner
2015-10-01 12:23 ` Frederic Weisbecker
2015-10-01 12:31 ` Thomas Gleixner
2015-10-01 17:02 ` Chris Metcalf
2015-10-01 21:20 ` Thomas Gleixner
2015-10-02 17:15 ` Chris Metcalf
2015-10-02 19:02 ` Thomas Gleixner
2015-10-01 19:25 ` Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 03/11] task_isolation: support PR_TASK_ISOLATION_STRICT mode Chris Metcalf
2015-09-28 20:51 ` Andy Lutomirski
2015-09-28 21:54 ` Chris Metcalf
2015-09-28 22:38 ` Andy Lutomirski
2015-09-29 17:35 ` Chris Metcalf
2015-09-29 17:46 ` Andy Lutomirski
2015-09-29 17:57 ` Chris Metcalf
2015-09-29 18:00 ` Andy Lutomirski
2015-10-01 19:25 ` Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 04/11] task_isolation: provide strict mode configurable signal Chris Metcalf
2015-09-28 20:54 ` Andy Lutomirski
2015-09-28 21:54 ` Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 05/11] task_isolation: add debug boot flag Chris Metcalf
2015-09-28 20:59 ` Andy Lutomirski
2015-09-28 21:55 ` Chris Metcalf
2015-09-28 22:40 ` Andy Lutomirski
2015-09-29 17:35 ` Chris Metcalf
2015-10-05 17:07 ` Luiz Capitulino
2015-10-08 0:33 ` Chris Metcalf
2015-10-08 20:28 ` Luiz Capitulino
2015-09-28 15:17 ` [PATCH v7 06/11] nohz: task_isolation: allow tick to be fully disabled Chris Metcalf
2015-09-28 20:40 ` Andy Lutomirski
2015-10-01 13:07 ` Frederic Weisbecker
2015-10-01 14:13 ` Thomas Gleixner
2015-09-28 15:17 ` [PATCH v7 07/11] arch/x86: enable task isolation functionality Chris Metcalf
2015-09-28 20:59 ` Andy Lutomirski
2015-09-28 21:57 ` Chris Metcalf
2015-09-28 22:43 ` Andy Lutomirski
2015-09-29 17:42 ` Chris Metcalf
2015-09-29 17:57 ` Andy Lutomirski
2015-09-30 20:25 ` Thomas Gleixner
2015-09-30 20:58 ` Chris Metcalf
2015-09-30 22:02 ` Thomas Gleixner
2015-09-30 22:11 ` Andy Lutomirski
2015-10-01 8:12 ` Thomas Gleixner
2015-10-01 9:08 ` Christoph Lameter
2015-10-01 10:10 ` Thomas Gleixner
2015-10-01 19:25 ` Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 08/11] arch/arm64: adopt prepare_exit_to_usermode() model from x86 Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 09/11] arch/arm64: enable task isolation functionality Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 10/11] arch/tile: adopt prepare_exit_to_usermode() model from x86 Chris Metcalf
2015-09-28 15:17 ` [PATCH v7 11/11] arch/tile: enable task isolation functionality Chris Metcalf
2015-10-20 20:35 ` [PATCH v8 00/14] support "task_isolation" mode for nohz_full Chris Metcalf
2015-10-20 20:35 ` [PATCH v8 01/14] vmstat: provide a function to quiet down the diff processing Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 02/14] vmstat: add vmstat_idle function Chris Metcalf
2015-10-20 20:45 ` Christoph Lameter
2015-10-20 20:36 ` [PATCH v8 03/14] lru_add_drain_all: factor out lru_add_drain_needed Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 04/14] task_isolation: add initial support Chris Metcalf
2015-10-20 20:56 ` Andy Lutomirski
2015-10-20 21:20 ` Chris Metcalf
2015-10-20 21:26 ` Andy Lutomirski
2015-10-21 0:29 ` Steven Rostedt
2015-10-26 20:19 ` Chris Metcalf
2015-10-26 21:13 ` Chris Metcalf
2015-10-26 20:32 ` Chris Metcalf
2015-10-21 16:12 ` Frederic Weisbecker
2015-10-27 16:40 ` Chris Metcalf
2016-01-28 16:38 ` Frederic Weisbecker
2016-02-11 19:58 ` Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 05/14] task_isolation: support PR_TASK_ISOLATION_STRICT mode Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 06/14] task_isolation: provide strict mode configurable signal Chris Metcalf
2015-10-21 0:56 ` Steven Rostedt
2015-10-21 1:30 ` Chris Metcalf
2015-10-21 1:41 ` Steven Rostedt
2015-10-21 1:42 ` Andy Lutomirski
2015-10-21 6:41 ` Gilad Ben Yossef
2015-10-21 18:53 ` Andy Lutomirski
2015-10-22 20:44 ` Chris Metcalf
2015-10-22 21:00 ` Andy Lutomirski
2015-10-27 19:37 ` Chris Metcalf
2015-10-24 9:16 ` Gilad Ben Yossef
2015-10-20 20:36 ` [PATCH v8 07/14] task_isolation: add debug boot flag Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 08/14] nohz_full: allow disabling the 1Hz minimum tick at boot Chris Metcalf
2015-10-20 21:03 ` Frederic Weisbecker
2015-10-20 21:18 ` Chris Metcalf
2015-10-21 0:59 ` Steven Rostedt
2015-10-21 6:56 ` Gilad Ben Yossef
2015-10-21 14:28 ` Christoph Lameter
2015-10-21 15:35 ` Frederic Weisbecker
2015-10-20 20:36 ` [PATCH v8 09/14] arch/x86: enable task isolation functionality Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 10/14] arch/arm64: adopt prepare_exit_to_usermode() model from x86 Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 11/14] arch/arm64: enable task isolation functionality Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 12/14] arch/tile: adopt prepare_exit_to_usermode() model from x86 Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 13/14] arch/tile: turn off timer tick for oneshot_stopped state Chris Metcalf
2015-10-20 20:36 ` [PATCH v8 14/14] arch/tile: enable task isolation functionality Chris Metcalf
2015-10-21 12:39 ` [PATCH v8 00/14] support "task_isolation" mode for nohz_full Peter Zijlstra
2015-10-22 20:31 ` Chris Metcalf
2015-10-23 2:33 ` Frederic Weisbecker
2015-10-23 8:49 ` Peter Zijlstra
2015-10-23 13:29 ` Frederic Weisbecker
2015-10-23 9:04 ` Peter Zijlstra
2015-10-23 11:52 ` Theodore Ts'o
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