Re: kernel BUG at drivers/scsi/scsi_lib.c:1096!

From	Michael Ellerman <mpe@ellerman.id.au>
Newsgroups	linux.kernel
Subject	Re: kernel BUG at drivers/scsi/scsi_lib.c:1096!
Date	2015-11-20 13:20 +0100
Message-ID	<qwSPw-76t-19@gated-at.bofh.it> (permalink)
References	<qw74e-WO-35@gated-at.bofh.it> <qwbAT-3W1-33@gated-at.bofh.it> <qwlTA-2sv-3@gated-at.bofh.it> <qwsLo-6Qc-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, 2015-11-19 at 00:23 -0800, Christoph Hellwig wrote:

> It's pretty much guaranteed a block layer bug, most likely in the
> merge bios to request infrastucture where we don't obey the merging
> limits properly.
> 
> Does either of you have a known good and first known bad kernel?

Not me, I've only hit it one or two times. All I can say is I have hit it in
4.4-rc1.

Laurent, can you narrow it down at all?

cheers

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Thread

kernel BUG at drivers/scsi/scsi_lib.c:1096! Michael Ellerman <mpe@ellerman.id.au> - 2015-11-18 10:20 +0100
  Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mark Salter <msalter@redhat.com> - 2015-11-18 15:10 +0100
    Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Michael Ellerman <mpe@ellerman.id.au> - 2015-11-19 02:10 +0100
      Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Christoph Hellwig <hch@infradead.org> - 2015-11-19 09:30 +0100
        Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Hannes Reinecke <hare@suse.de> - 2015-11-19 16:40 +0100
          Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Ewan Milne <emilne@redhat.com> - 2015-11-20 15:40 +0100
            Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Hannes Reinecke <hare@suse.de> - 2015-11-20 16:10 +0100
              Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Ewan Milne <emilne@redhat.com> - 2015-11-20 16:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Hannes Reinecke <hare@suse.de> - 2015-11-23 08:00 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Hannes Reinecke <hare@suse.de> - 2015-11-25 10:10 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Jens Axboe <axboe@fb.com> - 2015-11-25 19:00 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Hannes Reinecke <hare@suse.de> - 2015-11-25 20:20 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Jens Axboe <axboe@fb.com> - 2015-11-25 20:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mike Snitzer <snitzer@redhat.com> - 2015-11-25 21:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mike Snitzer <snitzer@redhat.com> - 2015-11-25 22:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mike Snitzer <snitzer@redhat.com> - 2015-11-25 19:10 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Hannes Reinecke <hare@suse.de> - 2015-11-25 20:10 +0100
        Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Michael Ellerman <mpe@ellerman.id.au> - 2015-11-20 13:20 +0100
          Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2015-11-20 14:00 +0100
            Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mark Salter <msalter@redhat.com> - 2015-11-20 14:40 +0100
          Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2015-11-21 12:40 +0100
            Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Ming Lei <ming.lei@canonical.com> - 2015-11-21 18:00 +0100
              Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mark Salter <msalter@redhat.com> - 2015-11-23 00:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Ming Lei <ming.lei@canonical.com> - 2015-11-23 01:40 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mark Salter <msalter@redhat.com> - 2015-11-23 03:00 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Ming Lei <ming.lei@canonical.com> - 2015-11-23 03:50 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Ming Lei <tom.leiming@gmail.com> - 2015-11-23 16:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Alan Ott <alan@softiron.co.uk> - 2015-11-24 20:40 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2015-11-23 15:00 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Pratyush Anand <panand@redhat.com> - 2015-11-23 16:20 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2015-11-23 16:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Ming Lei <ming.lei@canonical.com> - 2015-11-23 16:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2015-11-23 17:30 +0100
                Re: kernel BUG at drivers/scsi/scsi_lib.c:1096! Mark Salter <msalter@redhat.com> - 2015-11-24 02:40 +0100

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