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| author | Nick Piggin <npiggin@suse.de> | 2006-12-06 20:31:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:20 -0800 |
| commit | f2a2a7108aa0039ba7a5fe7a0d2ecef2219a7584 (patch) | |
| tree | a82338b774d680ca410830e94c1125fa3b9b693d /mm | |
| parent | f3af38d30c18538d069a95e624a3db7c3d486a1e (diff) | |
| download | linux-stable-f2a2a7108aa0039ba7a5fe7a0d2ecef2219a7584.tar.gz linux-stable-f2a2a7108aa0039ba7a5fe7a0d2ecef2219a7584.tar.bz2 linux-stable-f2a2a7108aa0039ba7a5fe7a0d2ecef2219a7584.zip | |
[PATCH] oom: less memdie
Don't cause all threads in all other thread groups to gain TIF_MEMDIE
otherwise we'll get a thundering herd eating our memory reserve. This may not
be the optimal scheme, but it fits our policy of allowing just one TIF_MEMDIE
in the system at once.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/oom_kill.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index a6879f22eb30..223d9ccb7d64 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -323,11 +323,12 @@ static int oom_kill_task(struct task_struct *p) /* * kill all processes that share the ->mm (i.e. all threads), - * but are in a different thread group. + * but are in a different thread group. Don't let them have access + * to memory reserves though, otherwise we might deplete all memory. */ do_each_thread(g, q) { if (q->mm == mm && q->tgid != p->tgid) - __oom_kill_task(q, 1); + force_sig(SIGKILL, p); } while_each_thread(g, q); return 0; |