From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Michal Hocko <mhocko@suse.cz>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Sasha Levin <sasha.levin@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org
Subject: Re: [PATCH 1/2] mm, oom: skip mlocked VMAs in __oom_reap_vmas()
Date: Tue, 5 Jan 2016 17:03:39 +0200 [thread overview]
Message-ID: <20160105150339.GD19907@node.shutemov.name> (raw)
In-Reply-To: <20160105133338.GC15324@dhcp22.suse.cz>
On Tue, Jan 05, 2016 at 02:33:38PM +0100, Michal Hocko wrote:
> On Tue 29-12-15 23:46:29, Kirill A. Shutemov wrote:
> > As far as I can see we explicitly munlock pages everywhere before unmap
> > them. The only case when we don't to that is OOM-reaper.
> >
> > I don't think we should bother with munlocking in this case, we can just
> > skip the locked VMA.
> >
> > I think this patch would fix this crash:
> > http://lkml.kernel.org/r/5661FBB6.6050307@oracle.com
>
> Btw, do you happen to have the full log here. OOM reaper can only
> interfere if there was an OOM killer invoked.
No, I don't. Sasha?
--
Kirill A. Shutemov
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next prev parent reply other threads:[~2016-01-05 15:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-29 20:46 [PATCH 0/2] THP mlock fix Kirill A. Shutemov
2015-12-29 20:46 ` [PATCH 1/2] mm, oom: skip mlocked VMAs in __oom_reap_vmas() Kirill A. Shutemov
2016-01-05 12:47 ` Michal Hocko
2016-01-05 13:10 ` Kirill A. Shutemov
2016-01-05 13:31 ` Michal Hocko
2016-01-05 15:03 ` Kirill A. Shutemov
2016-01-05 15:45 ` Michal Hocko
2016-01-05 13:33 ` Michal Hocko
2016-01-05 15:03 ` Kirill A. Shutemov [this message]
2016-01-05 15:44 ` Sasha Levin
2015-12-29 20:46 ` [PATCH 2/2] mm, thp: clear PG_mlocked when last mapping gone Kirill A. Shutemov
2016-01-05 9:37 ` Vlastimil Babka
2016-01-05 14:37 ` Kirill A. Shutemov
2015-12-29 20:52 ` [PATCH 0/2] THP mlock fix Sasha Levin
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