Re: Fw: Re: 2.6.9-rc2-mm4

Borislav Petkov
2004-10-01T10:35:21Z

On Friday 01 October 2004 11:54, Jens Axboe wrote:
> On Fri, Oct 01 2004, Borislav Petkov wrote:
> > On Friday 01 October 2004 11:18, Jens Axboe wrote:
> > > On Fri, Oct 01 2004, Bartlomiej Zolnierkiewicz wrote:
> > > > On Thursday 30 September 2004 23:46, Borislav Petkov wrote:
> > > > > On Thursday 30 September 2004 18:25, Bartlomiej Zolnierkiewicz
wrote:
> > > > > > On Thursday 30 September 2004 17:32, Borislav Petkov wrote:
> > > > > > > On Thursday 30 September 2004 14:52, Bartlomiej Zolnierkiewicz
> >
> > wrote:
> > > > > > > > On Thursday 30 September 2004 06:46, Andrew Morton wrote:
> > > > > > > > > ide broke :( Maybe Bart's bk tree?
> > > > > > > >
> > > > > > > > no, disk works just fine ;) If it is my tree I will happilly
> > > > > > > > fix it.
> > > > > > > >
> > > > > > > > Borislav, could you apply only these patches from -mm4 and
> > > > > > > > retest?
> > > > > > > >
> > > > > > > > linus.patch
> > > > > > > > bk-ide-dev.patch
> > > > > > > >
> > > > > > > > > Begin forwarded message:
> > > > > > > > >
> > > > > > > > > Date: Wed, 29 Sep 2004 12:43:35 +0200
> > > > > > > > > From: Borislav Petkov <petkov@uni-muenster.de>
> > > > > > > > > To: Andrew Morton <akpm@osdl.org>
> > > > > > > > > Cc: linux-kernel@vger.kernel.org
> > > > > > > > > Subject: Re: 2.6.9-rc2-mm4
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > <snip>
> > > > > > > > >
> > > > > > > > > Hello,
> > > > > > > > > I've already posted about problems with audio extraction
> > > > > > > > > but it went unnoticed. Here's a recount: When I attempt to
> > > > > > > > > read an audio cd into wavs with cdda2wav, the process
> > > > > > > > > starts but after a while the completion meter freezes and
> > > > > > > > > klogd says "hdc: lost interrupt" and cdda2wav hangs itself.
> > > > > > > > > Disabling DMA doesn't help as well as the boot option
> > > > > > > > > "pci=routeirq" too. Older kernels like 2.6.7 do not show
> > > > > > > > > such behavior and there audio extraction runs fine. Sysinfo
> > > > > > > > > attached.
> > > > > > > > >
> > > > > > > > > Regards,
> > > > > > > > > Boris.
> > > > > > >
> > > > > > > Hi people,
> > > > > > >
> > > > > > > well, I've applied the above patches but no change - same
> > > > > > > "hdc: lost interrupt" message. 2.6.9-rc3 behaves the same, as
> > > > > > > expected.
> > > > > >
> > > > > > Well, if 2.6.9-rc3 fails then it is not my tree...
> > > > > >
> > > > > > Please find kernel version which introduces this bug.
> > > > >
> > > > > Just compiled 2.6.8.1 and tested audio extraction. The bug is
> > > > > there. After that, reran the test with 2.6.7. Everything went fine.
> > > > > So it must have been between 2.6.7 and 2.6.8.1 when the bug got
> > > > > introduced. Any additional debugging options in the ATA/IDE cd
> > > > > driver i could turn on so that I could get more verbose messages
> > > > > while executing cdda2wav?
> > > >
> > > > I'm not aware of any. Jens?
> > >
> > > I don't see any changes that could impact this from 2.6.7 to 2.6.8. We
> > > tightened the dma alignment (from 4 to 32 bytes), but should not cause
> > > problems going in that direction. Unless the other path is buggy, of
> > > course.
> > >
> > > Does dma make a difference? Please try 2.6.9-rc3 as well.
> >
> > Sorry guys,
> >
> > still a no go. Tested today 2.6.8.1 and 2.6.9-rc3 both with DMA
> > on/off. same lost interrupt message. How about a hardware problem?
> > Maybe the cd-drive is showing some hidden "features" under certain
> > conditions, although it is highly unlikely since 2.6.7 runs fine.
> > strange...
>
> I can't say, probably you need to look outside of ide changes to locate
> the problem. Have you tried disabling acpi on your box?
I'm not sure whether adding the boot option acpi=off is enough to disable ACPI
in 2.6, but if this is the case 2.6.9-rc3 is still a no go with acpi
disabled. How about APIC?

Boris.