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SubjectRe: 2.6.19-rc3 system freezes when ripping with cdparanoia at ioctl(SG_IO)
On Fri, Nov 10 2006, Brice Goglin wrote:
> Jens Axboe wrote:
> > On Thu, Nov 09 2006, Monty Montgomery wrote:
> >
> >> On 11/9/06, Tejun Heo <htejun@gmail.com> wrote:
> >>
> >>
> >>> drivers/scsi/sg.c interprets SG_DXFER_TO_FROM_DEV as read while
> >>> block/scsi_ioctl.c interprets it as write. I guess this is historic
> >>> thing (scsi/sg.c updated but block/scsi_ioctl.c is forgotten).
> >>>
> >> Not historic; Jens accidentally implemented it backwards. No one
> >> noticed for a long time. I submitted a patch for this a few months
> >> ago.
> >>
> >
> > Yeah, I wonder why that did not go in, I remember the full breadth of
> > our discussion and you are fully correct. I'll make sure it gets into
> > 2.6.19!
> >
>
> Note sure this patch was supposed to fix our freeze, but I just tried on
> top of rc5 and it does not seem to fix it.

It should fix Alex's issue with wrong data direction being seen, I
haven't had time to follow this thread today so cannot say.

--
Jens Axboe

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