diff options
| author | Michal Hocko <[email protected]> | 2016-07-28 15:44:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-07-28 16:07:41 -0700 |
| commit | 696453e66630ad45e644c4571307fa3ebec9a835 (patch) | |
| tree | 1f615e6882b7b4cdacfbac7c972a4b9cc05d661e /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | 1af8bb43269563e458ebcf0ece812e9a970864b3 (diff) | |
mm, oom: task_will_free_mem should skip oom_reaped tasks
The 0-day robot has encountered the following:
Out of memory: Kill process 3914 (trinity-c0) score 167 or sacrifice child
Killed process 3914 (trinity-c0) total-vm:55864kB, anon-rss:1512kB, file-rss:1088kB, shmem-rss:25616kB
oom_reaper: reaped process 3914 (trinity-c0), now anon-rss:0kB, file-rss:0kB, shmem-rss:26488kB
oom_reaper: reaped process 3914 (trinity-c0), now anon-rss:0kB, file-rss:0kB, shmem-rss:26900kB
oom_reaper: reaped process 3914 (trinity-c0), now anon-rss:0kB, file-rss:0kB, shmem-rss:26900kB
oom_reaper: reaped process 3914 (trinity-c0), now anon-rss:0kB, file-rss:0kB, shmem-rss:27296kB
oom_reaper: reaped process 3914 (trinity-c0), now anon-rss:0kB, file-rss:0kB, shmem-rss:28148kB
oom_reaper is trying to reap the same task again and again.
This is possible only when the oom killer is bypassed because of
task_will_free_mem because we skip over tasks with MMF_OOM_REAPED
already set during select_bad_process. Teach task_will_free_mem to skip
over MMF_OOM_REAPED tasks as well because they will be unlikely to free
anything more.
Analyzed by Tetsuo Handa.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Michal Hocko <[email protected]>
Acked-by: Oleg Nesterov <[email protected]>
Cc: Tetsuo Handa <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Cc: David Rientjes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions