From: Jens Axboe <axboe@suse.de>
To: Frank Steiner <fsteiner-mail@bio.ifi.lmu.de>
Cc: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
James Bottomley <James.Bottomley@steeleye.com>,
Andrew Morton <akpm@osdl.org>
Subject: Re: kblockd/1: page allocation failure in 2.6.9
Date: Fri, 24 Dec 2004 14:20:06 +0100 [thread overview]
Message-ID: <20041224132006.GC2528@suse.de> (raw)
In-Reply-To: <41CAEA62.4060903@bio.ifi.lmu.de>
On Thu, Dec 23 2004, Frank Steiner wrote:
> >Dec 20 13:17:21 turing kernel: kblockd/1: page allocation failure.
> >order:0, mode:0x21
This looks fishy - this is GFP_ATOMIC | GFP_DMA, where it should only be
GFP_ATOMIC. gdth should not have shost->cmd_pool->gfp_mask ==
GFP_ATOMIC, that looks like a bug in the driver.
Apart from that, the trace looks sane and the SCSI mid layer should
recover from this condition and not cause a hung io subsystem. The only
way I can see this fail is if the scsi host free_list is not filled for
some reason during init, or if the commands allocated from there are
lost or never finished by the hardware.
--
Jens Axboe
next prev parent reply other threads:[~2004-12-24 13:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-21 7:39 kblockd/1: page allocation failure in 2.6.9 Frank Steiner
2004-12-23 11:26 ` Frank Steiner
2004-12-23 15:51 ` Denis Vlasenko
2004-12-23 15:55 ` Frank Steiner
2004-12-24 13:20 ` Jens Axboe [this message]
2004-12-24 19:28 ` James Bottomley
2004-12-25 22:49 ` Frank Steiner
2004-12-26 15:46 ` James Bottomley
2004-12-26 22:31 ` Frank Steiner
2005-01-10 9:19 ` Frank Steiner
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