From: Jens Axboe <axboe@suse.de>
To: Badari Pulavarty <badari@us.ibm.com>
Cc: merlin hughes <merlin@merlin.org>, linux-scsi@vger.kernel.org
Subject: Re: possible use-after-free in 2.5.44 scsi changes
Date: Thu, 31 Oct 2002 16:04:08 +0100 [thread overview]
Message-ID: <20021031150408.GF6549@suse.de> (raw)
In-Reply-To: <200210302219.g9UMJ5w05948@eng2.beaverton.ibm.com>
On Wed, Oct 30 2002, Badari Pulavarty wrote:
> > >- Badari
> >
> > Hi; if it's of any use, the patch doesn't seem to solve the scsi
> > problem for me (2.5.44-bk3-badari). I get the usual 'Incorrect number
> > of segments...' and random kernel death during the boot process.
> >
> > Merlin
>
> Hi Merlin,
>
> I am looking at the output of your problem ..
>
>
> Oct 28 12:36:09 badb kernel: Incorrect number of segments after building list
> Oct 28 12:36:09 badb kernel: counted 2, received 1
> Oct 28 12:36:09 badb kernel: req nr_sec 8, cur_nr_sec 8
> Oct 28 12:36:09 badb kernel: end_request: I/O error, dev 08:40, sector 6784528
> Oct 28 12:36:09 badb kernel: raid5: Disk failure on scsi/host0/bus0/target4/lun0/part7, disabling device. Operation continuing on 4 devices
>
> Huh !! Your IO size is only 4K. You are using 2 sg entries ?
Even weirder, nr_sec == cur_nr_sec so there can only be one segment or
something is corrupted...
> Oct 28 12:36:09 badb kernel: blk: request botched
which this one also seems to indicate.
Merlin, do you have any idea whether older 2.5 kernels worked for you?
--
Jens Axboe
next prev parent reply other threads:[~2002-10-31 15:04 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-25 1:39 possible use-after-free in 2.5.44 scsi changes Andrew Morton
2002-10-25 4:06 ` Doug Ledford
2002-10-25 4:40 ` Andrew Morton
2002-10-25 14:21 ` James Bottomley
2002-10-25 4:07 ` Patrick Mansfield
2002-10-25 14:16 ` James Bottomley
2002-10-25 18:34 ` James Bottomley
2002-10-25 18:49 ` Mike Anderson
2002-10-25 19:08 ` Patrick Mansfield
2002-10-25 19:41 ` Mike Anderson
2002-10-25 19:47 ` Jens Axboe
2002-10-25 22:14 ` James Bottomley
2002-10-25 22:18 ` Andrew Morton
2002-10-25 22:23 ` Badari Pulavarty
2002-10-26 0:13 ` James Bottomley
2002-10-26 0:18 ` Mike Anderson
2002-10-26 9:29 ` Jens Axboe
2002-10-27 0:50 ` James Bottomley
2002-10-27 21:20 ` Jens Axboe
2002-10-27 21:37 ` James Bottomley
2002-10-27 21:54 ` Jens Axboe
2002-10-30 17:39 ` Badari Pulavarty
2002-10-30 18:16 ` Jens Axboe
2002-10-30 19:31 ` Badari Pulavarty
2002-10-30 21:36 ` merlin hughes
2002-10-30 22:19 ` Badari Pulavarty
2002-10-31 2:17 ` merlin
2002-10-31 13:18 ` Jens Axboe
2002-10-31 14:41 ` merlin
2002-10-31 14:46 ` Jens Axboe
2002-10-31 15:04 ` Jens Axboe [this message]
2002-10-31 15:12 ` Jens Axboe
2002-10-31 17:41 ` merlin
2002-10-30 20:35 ` David S. Miller
2002-10-30 22:03 ` Badari Pulavarty
-- strict thread matches above, loose matches on Subject: below --
2002-10-31 17:57 Badari Pulavarty
2002-10-31 18:46 ` Jens Axboe
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