From: Andrew Morton <akpm@osdl.org>
To: Harry Edmon <harry@atmos.washington.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: page allocation or what in 2.6.8.1
Date: Thu, 26 Aug 2004 03:31:31 -0700 [thread overview]
Message-ID: <20040826033131.2cc153a9.akpm@osdl.org> (raw)
In-Reply-To: <200408251451.i7PEpQ7K020113@moist.atmos.washington.edu>
Harry Edmon <harry@atmos.washington.edu> wrote:
>
> I have had another crash on the same system as my message of 23 August:
>
> Unable to handle kernel paging request at virtual address cf0b4e1c
hm. Is the hardware known to be good?
> ...
>
> Before the crash I see messages like the following:
>
> oom-killer: gfp_mask=0xd0
That's because you've enabled CONFIG_DEBUG_PAGEALLOC. It enormously
increases the size of slab objects, which seems to cause memory reclaim to
blow up. (It shouldn't but it does. It's a low-priority problem though).
It's unlikely that the oom-killing caused the oops, but it's possible I
guess. There's supposed to be a dump_stack() in the out_of_memory() path,
which would help in searching for bugs, but that seems to have got lost.
next prev parent reply other threads:[~2004-08-26 10:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-25 14:51 PROBLEM: page allocation or what in 2.6.8.1 Harry Edmon
2004-08-26 10:31 ` Andrew Morton [this message]
2004-08-31 16:36 ` Re[2]: " Harry Edmon
2004-08-31 19:02 ` Andrew Morton
2004-08-31 22:21 ` Re[4]: " Harry Edmon
2004-08-31 22:47 ` Andrew Morton
2004-09-16 21:01 ` Harry Edmon
-- strict thread matches above, loose matches on Subject: below --
2004-08-23 15:39 Harry Edmon
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