Re: 2.6.39-rc4+: oom-killer busy killing tasks

From: Christian Kujau
Date: Mon Apr 25 2011 - 04:03:00 EST


On Mon, 25 Apr 2011 at 09:46, Dave Chinner wrote:
> BTW, what are your mount options? If it is the problem I suspect it
> is, then using noatime with stop it from occurring....

When mounted with noatime, running du(1) accross the XFS volume still
triggered the OOM killer, but the backtrace looked somewhat different
this time:

date invoked oom-killer: gfp_mask=0x84d0, order=0, oom_adj=0, oom_score_adj=0
Call Trace:
[ecda5c70] [c0009ce4] show_stack+0x70/0x1bc (unreliable)
[ecda5cb0] [c008f508] T.528+0x74/0x1cc
[ecda5d00] [c008f734] T.526+0xd4/0x2a0
[ecda5d40] [c008fb7c] out_of_memory+0x27c/0x360
[ecda5d90] [c0093b3c] __alloc_pages_nodemask+0x6f8/0x708
[ecda5e30] [c0017e9c] pte_alloc_one+0x30/0x90
[ecda5e40] [c00a9464] __pte_alloc+0x2c/0x100
[ecda5e60] [c00a95a8] handle_mm_fault+0x70/0x110
[ecda5e90] [c0016d78] do_page_fault+0x358/0x504
[ecda5f40] [c0012938] handle_page_fault+0xc/0x80
--- Exception: 401 at 0xffdd5e0
LR = 0xffd8a04

Full dmesg & slabinfo & more on:

http://nerdbynature.de/bits/2.6.39-rc4/oom/

(slabinfo-5.txt.bz2, messages-5.txt)

Christian.
--
BOFH excuse #176:

vapors from evaporating sticky-note adhesives
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/