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From: Andrea Arcangeli <andrea@cpushare.com>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	David Rientjes <rientjes@google.com>
Subject: [PATCH 00 of 11] oom deadlock fixes
Date: Thu, 03 Jan 2008 03:09:06 +0100	[thread overview]
Message-ID: <patchbomb.1199326146@v2.random> (raw)

Hello,

I rebased the patchset that fixes certain oom deadlocks that are still
reproducible with mainline.

I removed the global VM_is_OOM to keep the fixes to the minimum required to not
be kernel-crashing, I adapted to the introduction of the zone-oom-lock bitflag,
so with this update I hopefully have a better chance for merging.

Despite the lack of VM_is_OOM perfect oom-killing serialization, and the need
to avoid waiting forever on TIF_MEMDIE to prevent deadlocks, in practice with
swap it seem not to generate bad spurious kills and it avoids the deadlock as
well as my older patchset. We can always perfect this later with feedback
coming from do_exit.

Thanks.
Andrea

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             reply	other threads:[~2008-01-03  2:09 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-03  2:09 Andrea Arcangeli [this message]
2008-01-03  2:09 ` [PATCH 01 of 11] limit shrink zone scanning Andrea Arcangeli
2008-01-07 19:11   ` Christoph Lameter
2008-01-03  2:09 ` [PATCH 02 of 11] avoid oom deadlock in nfs_create_request Andrea Arcangeli
2008-01-07 19:13   ` Christoph Lameter
2008-01-03  2:09 ` [PATCH 03 of 11] prevent oom deadlocks during read/write operations Andrea Arcangeli
2008-01-07 19:15   ` Christoph Lameter
2008-01-07 19:26     ` Andrea Arcangeli
2008-01-03  2:09 ` [PATCH 04 of 11] avoid selecting already killed tasks Andrea Arcangeli
2008-01-03  9:40   ` David Rientjes
2008-01-03 13:41     ` Andrea Arcangeli
2008-01-03 18:47       ` David Rientjes
2008-01-03 19:54         ` Andrea Arcangeli
2008-01-03 20:49           ` David Rientjes
2008-01-07 19:17   ` Christoph Lameter
2008-01-03  2:09 ` [PATCH 05 of 11] reduce the probability of an OOM livelock Andrea Arcangeli
2008-01-07 19:32   ` Christoph Lameter
2008-01-03  2:09 ` [PATCH 06 of 11] balance_pgdat doesn't return the number of pages freed Andrea Arcangeli
2008-01-07 19:33   ` Christoph Lameter
2008-01-03  2:09 ` [PATCH 07 of 11] don't depend on PF_EXITING tasks to go away Andrea Arcangeli
2008-01-03  9:52   ` David Rientjes
2008-01-03 13:29     ` Andrea Arcangeli
2008-01-03  2:09 ` [PATCH 08 of 11] stop useless vm trashing while we wait the TIF_MEMDIE task to exit Andrea Arcangeli
2008-01-03  2:09 ` [PATCH 09 of 11] oom select should only take rss into account Andrea Arcangeli
2008-01-07 19:35   ` Christoph Lameter
2008-01-03  2:09 ` [PATCH 10 of 11] limit reclaim if enough pages have been freed Andrea Arcangeli
2008-01-07 19:37   ` Christoph Lameter
2008-01-08  7:28     ` Andrea Arcangeli
2008-01-03  2:09 ` [PATCH 11 of 11] not-wait-memdie Andrea Arcangeli
2008-01-03  9:55   ` David Rientjes
2008-01-03 13:06     ` Andrea Arcangeli
2008-01-03 18:54       ` David Rientjes
2008-01-07 19:43   ` Christoph Lameter
2008-01-08  1:57     ` David Rientjes
2008-01-08  3:25       ` Nick Piggin
2008-01-08  3:37         ` David Rientjes
2008-01-08  7:42           ` Nick Piggin
2008-01-08  7:45         ` Andrea Arcangeli
2008-01-08  7:37       ` Andrea Arcangeli
2008-01-08  7:31     ` Andrea Arcangeli

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