From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, akpm@linux-foundation.org,
linux-mm@kvack.org, Cong Wang <xiyou.wangcong@gmail.com>,
Dave Hansen <dave.hansen@intel.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Mel Gorman <mgorman@suse.de>, Michal Hocko <mhocko@kernel.org>,
Vlastimil Babka <vbabka@suse.cz>,
Peter Zijlstra <peterz@infradead.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jan Kara <jack@suse.cz>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
Byungchul Park <byungchul.park@lge.com>,
Tejun Heo <tj@kernel.org>, Pavel Machek <pavel@ucw.cz>,
"Steven Rostedt (VMware)" <rostedt@goodmis.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Petr Mladek <pmladek@suse.com>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 80/89] printk: Add console owner and waiter logic to load balance console writes
Date: Fri, 14 Dec 2018 13:00:33 +0100 [thread overview]
Message-ID: <20181214115733.640167523@linuxfoundation.org> (raw)
In-Reply-To: <20181214115729.658859279@linuxfoundation.org>
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit dbdda842fe96f8932bae554f0adf463c27c42bc7 ]
This patch implements what I discussed in Kernel Summit. I added
lockdep annotation (hopefully correctly), and it hasn't had any splats
(since I fixed some bugs in the first iterations). It did catch
problems when I had the owner covering too much. But now that the owner
is only set when actively calling the consoles, lockdep has stayed
quiet.
Here's the design again:
I added a "console_owner" which is set to a task that is actively
writing to the consoles. It is *not* the same as the owner of the
console_lock. It is only set when doing the calls to the console
functions. It is protected by a console_owner_lock which is a raw spin
lock.
There is a console_waiter. This is set when there is an active console
owner that is not current, and waiter is not set. This too is protected
by console_owner_lock.
In printk() when it tries to write to the consoles, we have:
if (console_trylock())
console_unlock();
Now I added an else, which will check if there is an active owner, and
no current waiter. If that is the case, then console_waiter is set, and
the task goes into a spin until it is no longer set.
When the active console owner finishes writing the current message to
the consoles, it grabs the console_owner_lock and sees if there is a
waiter, and clears console_owner.
If there is a waiter, then it breaks out of the loop, clears the waiter
flag (because that will release the waiter from its spin), and exits.
Note, it does *not* release the console semaphore. Because it is a
semaphore, there is no owner. Another task may release it. This means
that the waiter is guaranteed to be the new console owner! Which it
becomes.
Then the waiter calls console_unlock() and continues to write to the
consoles.
If another task comes along and does a printk() it too can become the
new waiter, and we wash rinse and repeat!
By Petr Mladek about possible new deadlocks:
The thing is that we move console_sem only to printk() call
that normally calls console_unlock() as well. It means that
the transferred owner should not bring new type of dependencies.
As Steven said somewhere: "If there is a deadlock, it was
there even before."
We could look at it from this side. The possible deadlock would
look like:
CPU0 CPU1
console_unlock()
console_owner = current;
spin_lockA()
printk()
spin = true;
while (...)
call_console_drivers()
spin_lockA()
This would be a deadlock. CPU0 would wait for the lock A.
While CPU1 would own the lockA and would wait for CPU0
to finish calling the console drivers and pass the console_sem
owner.
But if the above is true than the following scenario was
already possible before:
CPU0
spin_lockA()
printk()
console_unlock()
call_console_drivers()
spin_lockA()
By other words, this deadlock was there even before. Such
deadlocks are prevented by using printk_deferred() in
the sections guarded by the lock A.
By Steven Rostedt:
To demonstrate the issue, this module has been shown to lock up a
system with 4 CPUs and a slow console (like a serial console). It is
also able to lock up a 8 CPU system with only a fast (VGA) console, by
passing in "loops=100". The changes in this commit prevent this module
from locking up the system.
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/mutex.h>
#include <linux/workqueue.h>
#include <linux/hrtimer.h>
static bool stop_testing;
static unsigned int loops = 1;
static void preempt_printk_workfn(struct work_struct *work)
{
int i;
while (!READ_ONCE(stop_testing)) {
for (i = 0; i < loops && !READ_ONCE(stop_testing); i++) {
preempt_disable();
pr_emerg("%5d%-75s\n", smp_processor_id(),
" XXX NOPREEMPT");
preempt_enable();
}
msleep(1);
}
}
static struct work_struct __percpu *works;
static void finish(void)
{
int cpu;
WRITE_ONCE(stop_testing, true);
for_each_online_cpu(cpu)
flush_work(per_cpu_ptr(works, cpu));
free_percpu(works);
}
static int __init test_init(void)
{
int cpu;
works = alloc_percpu(struct work_struct);
if (!works)
return -ENOMEM;
/*
* This is just a test module. This will break if you
* do any CPU hot plugging between loading and
* unloading the module.
*/
for_each_online_cpu(cpu) {
struct work_struct *work = per_cpu_ptr(works, cpu);
INIT_WORK(work, &preempt_printk_workfn);
schedule_work_on(cpu, work);
}
return 0;
}
static void __exit test_exit(void)
{
finish();
}
module_param(loops, uint, 0);
module_init(test_init);
module_exit(test_exit);
MODULE_LICENSE("GPL");
Link: http://lkml.kernel.org/r/20180110132418.7080-2-pmladek@suse.com
Cc: akpm@linux-foundation.org
Cc: linux-mm@kvack.org
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
[pmladek@suse.com: Commit message about possible deadlocks]
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/printk/printk.c | 108 ++++++++++++++++++++++++++++++++++++++++-
1 file changed, 107 insertions(+), 1 deletion(-)
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 7161312593dd..b88b402444d6 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -86,8 +86,15 @@ EXPORT_SYMBOL_GPL(console_drivers);
static struct lockdep_map console_lock_dep_map = {
.name = "console_lock"
};
+static struct lockdep_map console_owner_dep_map = {
+ .name = "console_owner"
+};
#endif
+static DEFINE_RAW_SPINLOCK(console_owner_lock);
+static struct task_struct *console_owner;
+static bool console_waiter;
+
enum devkmsg_log_bits {
__DEVKMSG_LOG_BIT_ON = 0,
__DEVKMSG_LOG_BIT_OFF,
@@ -1767,8 +1774,56 @@ asmlinkage int vprintk_emit(int facility, int level,
* semaphore. The release will print out buffers and wake up
* /dev/kmsg and syslog() users.
*/
- if (console_trylock())
+ if (console_trylock()) {
console_unlock();
+ } else {
+ struct task_struct *owner = NULL;
+ bool waiter;
+ bool spin = false;
+
+ printk_safe_enter_irqsave(flags);
+
+ raw_spin_lock(&console_owner_lock);
+ owner = READ_ONCE(console_owner);
+ waiter = READ_ONCE(console_waiter);
+ if (!waiter && owner && owner != current) {
+ WRITE_ONCE(console_waiter, true);
+ spin = true;
+ }
+ raw_spin_unlock(&console_owner_lock);
+
+ /*
+ * If there is an active printk() writing to the
+ * consoles, instead of having it write our data too,
+ * see if we can offload that load from the active
+ * printer, and do some printing ourselves.
+ * Go into a spin only if there isn't already a waiter
+ * spinning, and there is an active printer, and
+ * that active printer isn't us (recursive printk?).
+ */
+ if (spin) {
+ /* We spin waiting for the owner to release us */
+ spin_acquire(&console_owner_dep_map, 0, 0, _THIS_IP_);
+ /* Owner will clear console_waiter on hand off */
+ while (READ_ONCE(console_waiter))
+ cpu_relax();
+
+ spin_release(&console_owner_dep_map, 1, _THIS_IP_);
+ printk_safe_exit_irqrestore(flags);
+
+ /*
+ * The owner passed the console lock to us.
+ * Since we did not spin on console lock, annotate
+ * this as a trylock. Otherwise lockdep will
+ * complain.
+ */
+ mutex_acquire(&console_lock_dep_map, 0, 1, _THIS_IP_);
+ console_unlock();
+ printk_safe_enter_irqsave(flags);
+ }
+ printk_safe_exit_irqrestore(flags);
+
+ }
}
return printed_len;
@@ -2155,6 +2210,7 @@ void console_unlock(void)
static u64 seen_seq;
unsigned long flags;
bool wake_klogd = false;
+ bool waiter = false;
bool do_cond_resched, retry;
if (console_suspended) {
@@ -2243,14 +2299,64 @@ void console_unlock(void)
console_seq++;
raw_spin_unlock(&logbuf_lock);
+ /*
+ * While actively printing out messages, if another printk()
+ * were to occur on another CPU, it may wait for this one to
+ * finish. This task can not be preempted if there is a
+ * waiter waiting to take over.
+ */
+ raw_spin_lock(&console_owner_lock);
+ console_owner = current;
+ raw_spin_unlock(&console_owner_lock);
+
+ /* The waiter may spin on us after setting console_owner */
+ spin_acquire(&console_owner_dep_map, 0, 0, _THIS_IP_);
+
stop_critical_timings(); /* don't trace print latency */
call_console_drivers(ext_text, ext_len, text, len);
start_critical_timings();
+
+ raw_spin_lock(&console_owner_lock);
+ waiter = READ_ONCE(console_waiter);
+ console_owner = NULL;
+ raw_spin_unlock(&console_owner_lock);
+
+ /*
+ * If there is a waiter waiting for us, then pass the
+ * rest of the work load over to that waiter.
+ */
+ if (waiter)
+ break;
+
+ /* There was no waiter, and nothing will spin on us here */
+ spin_release(&console_owner_dep_map, 1, _THIS_IP_);
+
printk_safe_exit_irqrestore(flags);
if (do_cond_resched)
cond_resched();
}
+
+ /*
+ * If there is an active waiter waiting on the console_lock.
+ * Pass off the printing to the waiter, and the waiter
+ * will continue printing on its CPU, and when all writing
+ * has finished, the last printer will wake up klogd.
+ */
+ if (waiter) {
+ WRITE_ONCE(console_waiter, false);
+ /* The waiter is now free to continue */
+ spin_release(&console_owner_dep_map, 1, _THIS_IP_);
+ /*
+ * Hand off console_lock to waiter. The waiter will perform
+ * the up(). After this, the waiter is the console_lock owner.
+ */
+ mutex_release(&console_lock_dep_map, 1, _THIS_IP_);
+ printk_safe_exit_irqrestore(flags);
+ /* Note, if waiter is set, logbuf_lock is not held */
+ return;
+ }
+
console_locked = 0;
/* Release the exclusive_console once it is used */
--
2.19.1
next prev parent reply other threads:[~2018-12-14 12:10 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-14 11:59 [PATCH 4.14 00/89] 4.14.89-stable review Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 01/89] ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes Greg Kroah-Hartman
2018-12-15 19:50 ` jwiesner
2018-12-14 11:59 ` [PATCH 4.14 02/89] ipv6: Check available headroom in ip6_xmit() even without options Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 03/89] neighbour: Avoid writing before skb->head in neigh_hh_output() Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 04/89] ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 05/89] net: 8139cp: fix a BUG triggered by changing mtu with network traffic Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 06/89] net/mlx4_core: Correctly set PFC param if global pause is turned off Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 07/89] net/mlx4_en: Change min MTU size to ETH_MIN_MTU Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 08/89] net: phy: dont allow __set_phy_supported to add unsupported modes Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 09/89] net: Prevent invalid access to skb->prev in __qdisc_drop_all Greg Kroah-Hartman
2018-12-14 15:52 ` Christoph Paasch
2018-12-14 15:54 ` Christoph Paasch
2018-12-14 16:28 ` Eric Dumazet
2018-12-14 19:05 ` David Miller
2018-12-14 19:11 ` Christoph Paasch
2018-12-14 11:59 ` [PATCH 4.14 10/89] rtnetlink: ndo_dflt_fdb_dump() only work for ARPHRD_ETHER devices Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 11/89] sctp: kfree_rcu asoc Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 12/89] tcp: Do not underestimate rwnd_limited Greg Kroah-Hartman
2018-12-14 14:03 ` Sudip Mukherjee
2018-12-14 14:26 ` Greg Kroah-Hartman
[not found] ` <CANn89iKnuwQAybYEtXwvRFfQ8Rp8VihO16bVucAjDn1GRBtv9w@mail.gmail.com>
2018-12-14 14:36 ` Greg Kroah-Hartman
2018-12-14 19:03 ` David Miller
2018-12-14 19:07 ` Greg KH
2018-12-14 18:58 ` David Miller
2018-12-14 11:59 ` [PATCH 4.14 13/89] tcp: fix NULL ref in tail loss probe Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 14/89] tun: forbid iface creation with rtnl ops Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 15/89] virtio-net: keep vnet header zeroed after processing XDP Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 16/89] ARM: OMAP2+: prm44xx: Fix section annotation on omap44xx_prm_enable_io_wakeup Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 17/89] ASoC: rsnd: fixup clock start checker Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 18/89] staging: rtl8723bs: Fix the return value in case of error in rtw_wx_read32() Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 19/89] ARM: dts: logicpd-somlv: Fix interrupt on mmc3_dat1 Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 20/89] ARM: OMAP1: ams-delta: Fix possible use of uninitialized field Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 21/89] sysv: return err instead of 0 in __sysv_write_inode Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 22/89] selftests: add script to stress-test nft packet path vs. control plane Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 23/89] netfilter: nf_tables: fix use-after-free when deleting compat expressions Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 24/89] hwmon (ina2xx) Fix NULL id pointer in probe() Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 25/89] ASoC: wm_adsp: Fix dma-unsafe read of scratch registers Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 26/89] s390/cpum_cf: Reject request for sampling in event initialization Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 27/89] hwmon: (ina2xx) Fix current value calculation Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 28/89] ASoC: omap-abe-twl6040: Fix missing audio card caused by deferred probing Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 29/89] ASoC: dapm: Recalculate audio map forcely when card instantiated Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 30/89] iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 31/89] netfilter: xt_hashlimit: fix a possible memory leak in htable_create() Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 32/89] hwmon: (w83795) temp4_type has writable permission Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 33/89] perf tools: Restore proper cwd on return from mnt namespace Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 34/89] PCI: imx6: Fix link training status detection in link up check Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 35/89] objtool: Fix double-free in .cold detection error path Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 36/89] objtool: Fix segfault in .cold detection with -ffunction-sections Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 37/89] ARM: dts: at91: sama5d2: use the divided clock for SMC Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 38/89] Btrfs: send, fix infinite loop due to directory rename dependencies Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 39/89] RDMA/mlx5: Fix fence type for IB_WR_LOCAL_INV WR Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 40/89] RDMA/rdmavt: Fix rvt_create_ah function signature Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 41/89] ASoC: omap-mcbsp: Fix latency value calculation for pm_qos Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 42/89] ASoC: omap-mcpdm: Add pm_qos handling to avoid under/overruns with CPU_IDLE Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 43/89] ASoC: omap-dmic: Add pm_qos handling to avoid overruns " Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 44/89] exportfs: do not read dentry after free Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 45/89] bpf: fix check of allowed specifiers in bpf_trace_printk Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.14 46/89] ipvs: call ip_vs_dst_notifier earlier than ipv6_dev_notf Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 47/89] USB: omap_udc: use devm_request_irq() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 48/89] USB: omap_udc: fix crashes on probe error and module removal Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 49/89] USB: omap_udc: fix omap_udc_start() on 15xx machines Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 50/89] USB: omap_udc: fix USB gadget functionality on Palm Tungsten E Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 51/89] USB: omap_udc: fix rejection of out transfers when DMA is used Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 52/89] drm/meson: add support for 1080p25 mode Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 53/89] netfilter: ipv6: Preserve link scope traffic original oif Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 54/89] IB/mlx5: Fix page fault handling for MW Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 55/89] KVM: x86: fix empty-body warnings Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 56/89] x86/kvm/vmx: fix old-style function declaration Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 57/89] net: thunderx: fix NULL pointer dereference in nic_remove Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 58/89] usb: gadget: u_ether: fix unsafe list iteration Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 59/89] netfilter: nf_tables: deactivate expressions in rule replecement routine Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 60/89] cachefiles: Fix page leak in cachefiles_read_backing_file while vmscan is active Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 61/89] igb: fix uninitialized variables Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 62/89] ixgbe: recognize 1000BaseLX SFP modules as 1Gbps Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 63/89] net: hisilicon: remove unexpected free_netdev Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 64/89] drm/amdgpu: Add delay after enable RLC ucode Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 65/89] drm/ast: fixed reading monitor EDID not stable issue Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 66/89] xen: xlate_mmu: add missing header to fix W=1 warning Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 67/89] Revert "xen/balloon: Mark unallocated host memory as UNUSABLE" Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 68/89] pstore/ram: Correctly calculate usable PRZ bytes Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 69/89] fscache: fix race between enablement and dropping of object Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 70/89] fscache, cachefiles: remove redundant variable cache Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 71/89] nvme: flush namespace scanning work just before removing namespaces Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 72/89] ACPI/IORT: Fix iort_get_platform_device_domain() uninitialized pointer value Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 73/89] ocfs2: fix deadlock caused by ocfs2_defrag_extent() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 74/89] mm/page_alloc.c: fix calculation of pgdat->nr_zones Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 75/89] hfs: do not free node before using Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 76/89] hfsplus: " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 77/89] debugobjects: avoid recursive calls with kmemleak Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 78/89] ocfs2: fix potential use after free Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 79/89] Revert "printk: Never set console_may_schedule in console_trylock()" Greg Kroah-Hartman
2018-12-14 12:00 ` Greg Kroah-Hartman [this message]
2018-12-14 12:00 ` [PATCH 4.14 81/89] printk: Hide console waiter logic into helpers Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 82/89] printk: Never set console_may_schedule in console_trylock() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 83/89] printk: Wake klogd when passing console_lock owner Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 84/89] lib/rbtree-test: lower default params Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 85/89] flexfiles: enforce per-mirror stateid only for v4 DSes Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 86/89] staging: speakup: Replace strncpy with memcpy Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 87/89] ALSA: fireface: fix reference to wrong register for clock configuration Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 88/89] ALSA: hda/realtek - Fixed headphone issue for ALC700 Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.14 89/89] IB/hfi1: Fix an out-of-bounds access in get_hw_stats Greg Kroah-Hartman
2018-12-14 17:33 ` [PATCH 4.14 00/89] 4.14.89-stable review kernelci.org bot
2018-12-14 20:12 ` shuah
2018-12-15 2:07 ` Guenter Roeck
2018-12-15 16:52 ` Dan Rue
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