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SubjectRe: Linux 2.6.20-rc1
Date
On Friday 15 December 2006 00:48, Alistair John Strachan wrote:
> On Thursday 14 December 2006 21:20, Jens Axboe wrote:
> > On Thu, Dec 14 2006, Alistair John Strachan wrote:
> > > Hi Jens,
> > >
> > > On Thursday 14 December 2006 20:48, Jens Axboe wrote:
> > > > On Thu, Dec 14 2006, Jens Axboe wrote:
> > > > > > I'll do that if nobody comes up with anything obvious.
> > > > >
> > > > > If you can just test 2.6.19-git1, then we'll know if it's the SG_IO
> > > > > patch again.
> > > >
> > > > Actually, you should test 2.6.19-git1 with this patch applied as
> > > > well.
> > >
> > > 2.6.19-git1 with FUJITA Tomonori's bio-leak fix doesn't break, and
> > > hddtemp continues to work fine:
> > >
> > > [root] 21:10 [~] hddtemp /dev/sda /dev/sdb /dev/sdc /dev/sdd
> > > /dev/sda: WDC WD2500KS-00MJB0: 29°C
> > > /dev/sdb: WDC WD2500KS-00MJB0: 27°C
> > > /dev/sdc: Maxtor 6B200M0: 28°C
> > > /dev/sdd: Maxtor 6B200M0: 26°C
> > >
> > > I've added the strace results to the URL previously posted, with the
> > > config.
> >
> > Then it is likely the sata updates, SG_IO is off the hook.
>
> I bisected all the way down to 0e75f9063f5c55fb0b0b546a7c356f8ec186825e,
> which git reckons is the culprit. I wasn't able to revert this commit to
> test, because it has conflicts.

Whatever the change is, it's subtle. I don't see the problem in git1+patch,
but I know this kernel _includes_ this changeset.

In total isolation, v2.6.19..0e75f9063f5c55fb0b0b546a7c356f8ec186825e it
breaks. Reverting just 0e75f9063f5c55fb0b0b546a7c356f8ec186825e, it works
again.

So I think this is the source, but I can't explain why it "goes away" before
git1 and "comes back" before 2.6.20-rc1.

--
Cheers,
Alistair.

Final year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.
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