From: Oliver Neukum <oliver@neukum.org>
To: "ming lei" <tom.leiming@gmail.com>
Cc: "Josh Goldsmith" <joshin@hotmail.com>, linux-kernel@vger.kernel.org
Subject: Re: Small System Paging Problem - OOM-killer goes nuts
Date: Tue, 27 Nov 2007 10:29:03 +0100 [thread overview]
Message-ID: <200711271029.04034.oliver@neukum.org> (raw)
In-Reply-To: <d82e647a0711261717s12fdfd13q4961294cd957d7af@mail.gmail.com>
Am Dienstag 27 November 2007 schrieb ming lei:
> It seems oom happenes when VM(page frame reclaim) try to reclaim much
> more memory by writing back dirty pages, but there is not enough ram
> for usb disk related driver to finish the writeback operation. (usb
> disk related driver: scsi_mod, usb mass storage, usbcore and uhci or
> ehci )
As far as I can tell, the problem arises because usb-storage's kernel
thread does not run with PF_MEMALLOC and cannot dip into the reserves.
Regards
Oliver
next prev parent reply other threads:[~2007-11-27 9:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-25 22:02 Small System Paging Problem - OOM-killer goes nuts Josh Goldsmith
2007-11-26 11:57 ` David Newall
2007-11-26 17:48 ` Josh Goldsmith
2007-11-26 23:03 ` David Newall
2007-11-27 1:17 ` ming lei
2007-11-27 9:29 ` Oliver Neukum [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-11-25 22:55 Mikael Pettersson
2007-11-26 5:28 ` Josh Goldsmith
2007-11-26 16:55 ` Pavel Machek
2007-11-26 8:47 Mikael Pettersson
2007-11-27 1:47 Ian Kumlien
2007-11-27 3:50 Josh Goldsmith
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