From: Andrew Morton <akpm@digeo.com>
To: Paul Larson <plars@linuxtestproject.org>,
Badari Pulavarty <pbadari@us.ibm.com>
Cc: lkml <linux-kernel@vger.kernel.org>, lse-tech@lists.sourceforge.net
Subject: Re: Bug in last night's bk test
Date: Mon, 23 Sep 2002 15:05:59 -0700 [thread overview]
Message-ID: <3D8F9047.B464ABD4@digeo.com> (raw)
In-Reply-To: 1032817002.24372.138.camel@plars.austin.ibm.com
Paul Larson wrote:
>
> The automated nightly testing turned up a bug on one of the test
> machines last night. The system that had the problem was running ltp
> and was a 2-way PII-550, 2GB ram, ext2. Here is the ksymoops dump:
>
> ksymoops 2.4.5 on i686 2.4.18. Options used
> -V (default)
> -K (specified)
> -L (specified)
> -O (specified)
> -m System.map (specified)
>
> kernel BUG at ll_rw_blk.c:1802!
Ah, yes.
The direct-io code will build requests which are larger than
the ips driver is prepared to accept, and the BIO layer correctly
BUGs out over it.
We need to convert direct-io to use the bio_add_page() facility
which Jens has recently added.
Until that's done you'll need to set BIO_MAX_PAGES to 16 in
include/linux/bio.h
next prev parent reply other threads:[~2002-09-23 22:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-23 21:36 Bug in last night's bk test Paul Larson
2002-09-23 22:05 ` Andrew Morton [this message]
2002-09-23 22:52 ` Badari Pulavarty
2002-09-23 23:13 ` Andrew Morton
2002-09-23 23:37 ` Badari Pulavarty
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