mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-23 20:24:12 +08:00
mm, oom: dump stack of victim when reaping failed
When a process cannot be oom reaped, for whatever reason, currently the list of locks that are held is currently dumped to the kernel log. Much more interesting is the stack trace of the victim that cannot be reaped. If the stack trace is dumped, we have the ability to find related occurrences in the same kernel code and hopefully solve the issue that is making it wedged. Dump the stack trace when a process fails to be oom reaped. Link: http://lkml.kernel.org/r/alpine.DEB.2.21.2001141519280.200484@chino.kir.corp.google.com Signed-off-by: David Rientjes <rientjes@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
a090d711dd
commit
8a7ff02aca
@ -26,6 +26,7 @@
|
||||
#include <linux/sched/mm.h>
|
||||
#include <linux/sched/coredump.h>
|
||||
#include <linux/sched/task.h>
|
||||
#include <linux/sched/debug.h>
|
||||
#include <linux/swap.h>
|
||||
#include <linux/timex.h>
|
||||
#include <linux/jiffies.h>
|
||||
@ -620,6 +621,7 @@ static void oom_reap_task(struct task_struct *tsk)
|
||||
|
||||
pr_info("oom_reaper: unable to reap pid:%d (%s)\n",
|
||||
task_pid_nr(tsk), tsk->comm);
|
||||
sched_show_task(tsk);
|
||||
debug_show_all_locks();
|
||||
|
||||
done:
|
||||
|
Loading…
Reference in New Issue
Block a user