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SubjectFound the commit that causes the OOMs
Date

I've managed to bisect things to find the commit that causes the OOMs. It's:

commit 69c854817566db82c362797b4a6521d0b00fe1d8
Author: MinChan Kim <minchan.kim@gmail.com>
Date: Tue Jun 16 15:32:44 2009 -0700

vmscan: prevent shrinking of active anon lru list in case of no swap space V3

shrink_zone() can deactivate active anon pages even if we don't have a
swap device. Many embedded products don't have a swap device. So the
deactivation of anon pages is unnecessary.

This patch prevents unnecessary deactivation of anon lru pages. But, it
don't prevent aging of anon pages to swap out.

Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This exhibits the problem. The previous commit:

commit 35282a2de4e5e4e173ab61aa9d7015886021a821
Author: Brice Goglin <Brice.Goglin@ens-lyon.org>
Date: Tue Jun 16 15:32:43 2009 -0700

migration: only migrate_prep() once per move_pages()

survives 16 iterations of the LTP syscall testsuite without exhibiting the
problem.

David


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