From: Mel Gorman <mgorman@suse.de>
To: Hugh Dickins <hughd@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>,
Sasha Levin <sasha.levin@oracle.com>,
Petr Holasek <pholasek@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] sched: numa: ksm: fix oops in task_numa_placment()
Date: Thu, 20 Dec 2012 11:14:05 +0000 [thread overview]
Message-ID: <20121220111405.GE10819@suse.de> (raw)
In-Reply-To: <alpine.LNX.2.00.1212191735530.25409@eggly.anvils>
On Wed, Dec 19, 2012 at 05:42:16PM -0800, Hugh Dickins wrote:
> task_numa_placement() oopsed on NULL p->mm when task_numa_fault()
> got called in the handling of break_ksm() for ksmd. That might be a
> peculiar case, which perhaps KSM could takes steps to avoid? but it's
> more robust if task_numa_placement() allows for such a possibility.
>
> Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
--
Mel Gorman
SUSE Labs
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WARNING: multiple messages have this Message-ID (diff)
From: Mel Gorman <mgorman@suse.de>
To: Hugh Dickins <hughd@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>,
Sasha Levin <sasha.levin@oracle.com>,
Petr Holasek <pholasek@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] sched: numa: ksm: fix oops in task_numa_placment()
Date: Thu, 20 Dec 2012 11:14:05 +0000 [thread overview]
Message-ID: <20121220111405.GE10819@suse.de> (raw)
In-Reply-To: <alpine.LNX.2.00.1212191735530.25409@eggly.anvils>
On Wed, Dec 19, 2012 at 05:42:16PM -0800, Hugh Dickins wrote:
> task_numa_placement() oopsed on NULL p->mm when task_numa_fault()
> got called in the handling of break_ksm() for ksmd. That might be a
> peculiar case, which perhaps KSM could takes steps to avoid? but it's
> more robust if task_numa_placement() allows for such a possibility.
>
> Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2012-12-20 11:14 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-20 1:42 [PATCH] sched: numa: ksm: fix oops in task_numa_placment() Hugh Dickins
2012-12-20 1:42 ` Hugh Dickins
2012-12-20 1:44 ` [PATCH] ksm: make rmap walks more scalable Hugh Dickins
2012-12-20 1:44 ` Hugh Dickins
2012-12-20 11:17 ` Mel Gorman
2012-12-20 11:17 ` Mel Gorman
2012-12-20 21:49 ` Sasha Levin
2012-12-20 21:49 ` Sasha Levin
2012-12-20 22:26 ` Linus Torvalds
2012-12-20 22:26 ` Linus Torvalds
2012-12-20 22:40 ` Hugh Dickins
2012-12-20 22:40 ` Hugh Dickins
2012-12-20 22:37 ` Hugh Dickins
2012-12-20 22:37 ` Hugh Dickins
2012-12-20 22:43 ` Sasha Levin
2012-12-20 22:43 ` Sasha Levin
2012-12-21 0:36 ` Petr Holasek
2012-12-21 0:36 ` Petr Holasek
2012-12-21 2:35 ` Hugh Dickins
2012-12-21 2:35 ` Hugh Dickins
2012-12-20 11:14 ` Mel Gorman [this message]
2012-12-20 11:14 ` [PATCH] sched: numa: ksm: fix oops in task_numa_placment() Mel Gorman
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