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Re: [dm-devel] [Bug 19642] New: 2.6.36-rc6 BUG at drivers/scsi/scsi_lib.c:1113



On Sun, Oct 03 2010 at  2:53pm -0400,
James Bottomley <James Bottomley suse de> wrote:

> On Sun, 2010-10-03 at 18:37 +0000, bugzilla-daemon bugzilla kernel org
> wrote:
> > https://bugzilla.kernel.org/show_bug.cgi?id=19642
> > 
> >            Summary: 2.6.36-rc6 BUG at drivers/scsi/scsi_lib.c:1113
> >            Product: IO/Storage
> >            Version: 2.5
> >     Kernel Version: 2.6.36-rc6
> >           Platform: All
> >         OS/Version: Linux
> >               Tree: Mainline
> >             Status: NEW
> >           Severity: normal
> >           Priority: P1
> >          Component: SCSI
> >         AssignedTo: linux-scsi vger kernel org
> 
> I think this is wrong.
> 
> >         ReportedBy: maciej rutecki gmail com
> >                 CC: rjw sisk pl, maciej rutecki gmail com,
> >                     linux horizon com
> >         Regression: Yes
> > 
> > 
> > Subject    : 2.6.36-rc6 BUG at drivers/scsi/scsi_lib.c:1113
> > Submitter  : "George Spelvin" <linux horizon com>
> > Date       : 2010-09-30 21:10
> > Message-ID : 20100930211006 27449 qmail science horizon com
> > References : http://marc.info/?l=linux-kernel&m=128588102620299&w=2
> 
> That looks like a zero length barrier send down to SCSI with the RW flag
> set (hence we try to map a buffer that has nothing to map).  I cc'd
> dm-devel to see what their opinion is.

Given that the referenced LKML report is MD focused it seems linux-raid
should be cc'd instead (doing so now).

Mike


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