From: Michael Ellerman <mpe@ellerman•id.au>
To: Laurent Dufour <ldufour@linux•vnet.ibm.com>,
linuxppc-dev@lists•ozlabs.org
Subject: Re: kernel BUG at drivers/scsi/scsi_lib.c:1096!
Date: Wed, 18 Nov 2015 22:10:43 +1100 [thread overview]
Message-ID: <1447845043.7303.1.camel@ellerman.id.au> (raw)
In-Reply-To: <564C5BBC.8020701@linux.vnet.ibm.com>
On Wed, 2015-11-18 at 12:06 +0100, Laurent Dufour wrote:
> On 18/11/2015 10:18, Michael Ellerman wrote:
> > Hi folks,
> >
> > I'm intermittently seeing the following oops on at least one powerpc box.
> >
> > The BUG_ON() is from:
> >
> > static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb)
> > {
> > ...
> > count = blk_rq_map_sg(req->q, req, sdb->table.sgl);
> > BUG_ON(count > sdb->table.nents);
> >
> > Looking at the dump it looks like count was 2, I can't work out what nents was.
> >
> > The machine's just a fairly boring bare metal setup, with a single IPR adapter:
> >
> > 0001:08:00.0 RAID bus controller: IBM PCI-E IPR SAS Adapter (ASIC) (rev 02)
> > Subsystem: IBM PCIe3 x8 SAS RAID Internal Adapter 6Gb (57D7)
> > Flags: bus master, fast devsel, latency 0
> > Kernel driver in use: ipr
> >
> >
> > Anyone seen it before or have any ideas?
>
> Hi Michael,
>
> I'm facing the same panic on my bare metal system.
>
> Sounds to be raised by the latest update to 4.4-rc1
Yeah I think it's new since 4.3.
Do you see it regularly, or just every now and then?
cheers
next prev parent reply other threads:[~2015-11-18 11:10 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-18 9:18 kernel BUG at drivers/scsi/scsi_lib.c:1096! Michael Ellerman
2015-11-18 11:06 ` Laurent Dufour
2015-11-18 11:10 ` Michael Ellerman [this message]
2015-11-18 11:17 ` Laurent Dufour
2015-11-18 14:03 ` Mark Salter
2015-11-19 1:02 ` Michael Ellerman
2015-11-19 8:23 ` Christoph Hellwig
2015-11-19 15:35 ` Hannes Reinecke
2015-11-20 14:38 ` Ewan Milne
2015-11-20 14:55 ` Hannes Reinecke
2015-11-20 15:28 ` Ewan Milne
2015-11-23 6:55 ` Hannes Reinecke
2015-11-25 9:04 ` Hannes Reinecke
2015-11-25 17:56 ` Jens Axboe
2015-11-25 19:10 ` Hannes Reinecke
2015-11-25 19:24 ` Jens Axboe
2015-11-25 20:23 ` Mike Snitzer
2015-11-25 21:20 ` Mike Snitzer
2015-11-25 18:01 ` Mike Snitzer
2015-11-25 19:01 ` Hannes Reinecke
2015-12-04 16:59 ` Takashi Iwai
2015-12-04 17:02 ` Jens Axboe
2015-12-04 17:09 ` Takashi Iwai
2015-11-20 12:10 ` Michael Ellerman
2015-11-20 12:56 ` Laurent Dufour
2015-11-20 13:37 ` Mark Salter
2015-11-21 11:30 ` Laurent Dufour
2015-11-21 16:56 ` Ming Lei
2015-11-22 23:20 ` Mark Salter
2015-11-23 0:36 ` Ming Lei
2015-11-23 1:50 ` Mark Salter
2015-11-23 2:46 ` Ming Lei
2015-11-23 15:21 ` Ming Lei
2015-11-24 18:59 ` Alan Ott
2015-11-23 13:57 ` Laurent Dufour
2015-11-23 15:13 ` Pratyush Anand
2015-11-23 15:20 ` Laurent Dufour
2015-11-23 15:27 ` Ming Lei
2015-11-23 16:24 ` Laurent Dufour
2015-11-24 1:30 ` Mark Salter
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