From: Dan Aloni <da-x@monatomic.org>
To: Andrew Morton <akpm@osdl.org>
Cc: Dave Jones <davej@redhat.com>,
AChittenden@bluearc.com, linux-kernel@vger.kernel.org,
lwoodman@redhat.com, Jens Axboe <axboe@suse.de>
Subject: Re: Out of Memory: Killed process 16498 (java).
Date: Sat, 21 Jan 2006 22:00:17 +0200 [thread overview]
Message-ID: <20060121200016.GA32197@localdomain> (raw)
In-Reply-To: <20060119174920.4a842f03.akpm@osdl.org>
On Thu, Jan 19, 2006 at 05:49:20PM -0800, Andrew Morton wrote:
> Dave Jones <davej@redhat.com> wrote:
> >
> > The Fedora user in the bug report
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=175173
> > who on x86-64 with 5GB saw zone_dma exhausted saw a similar result,
> > delays the kill, but it does still happen.
>
> Again, that person's ZONE_DMA has *zero* pages on the LRU. Something has
> consumed all of the piddling little zone for kernel data structures. It is
> a true oom.
>
> We need to work out who is using all this ZONE_DMA memory and make them
> stop it.
It reminds me, we had a similar problem in the 2.4.x kernel with
many SCSI hosts loaded - that caused scsi_malloc (which uses DMA)
to consume a lot of DMA memory and trigger the OOM. I know that code
was much rewritten for 2.6.x, through DMA allocations in the SCSI
subsystem (regardless of drivers) still exist here and there.
--
Dan Aloni
da-x@monatomic.org, da-x@colinux.org, da-x@gmx.net, dan@xiv.co.il
next prev parent reply other threads:[~2006-01-21 19:57 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-19 15:11 Out of Memory: Killed process 16498 (java) Andy Chittenden
2006-01-19 19:48 ` Dave Jones
2006-01-19 22:15 ` Andrew Morton
2006-01-20 8:12 ` Jens Axboe
2006-01-20 8:23 ` Andrew Morton
2006-01-20 12:08 ` Jens Axboe
2006-01-20 12:17 ` Andrew Morton
2006-01-20 12:28 ` Jens Axboe
2006-01-20 12:51 ` Andrew Morton
2006-01-20 1:03 ` Andrew Morton
2006-01-20 1:28 ` Dave Jones
2006-01-20 1:49 ` Andrew Morton
2006-01-21 20:00 ` Dan Aloni [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-01-27 11:53 Andy Chittenden
2006-01-27 14:21 ` Jens Axboe
2006-01-27 14:39 ` Anton Altaparmakov
2006-01-23 10:03 Andy Chittenden
2006-01-23 10:11 ` Jens Axboe
2006-01-21 21:47 Andy Chittenden
2006-01-23 9:27 ` Jens Axboe
[not found] <89E85E0168AD994693B574C80EDB9C27035561DE@uk-email.terastack.bluearc.com>
2006-01-20 17:39 ` Jens Axboe
[not found] <89E85E0168AD994693B574C80EDB9C27035560E4@uk-email.terastack.bluearc.com>
2006-01-20 12:37 ` Larry Woodman
[not found] <89E85E0168AD994693B574C80EDB9C2703555F8E@uk-email.terastack.bluearc.com>
2006-01-19 9:44 ` Andrew Morton
2006-01-19 9:40 Andy Chittenden
2006-01-19 9:41 ` Con Kolivas
2006-01-19 8:43 Andy Chittenden
2006-01-19 8:56 ` Andrew Morton
2006-01-19 9:36 ` Con Kolivas
2006-01-19 20:54 ` Martin Bligh
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