Re: Fw: Re: 2.6.9-rc2-mm4

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

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.

Regards,
Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Bartlomiej Zolnierkiewicz]

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.

> Regards,
> Boris.
> 
> 

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

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?
> > Regards,
> > Boris.

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Bartlomiej Zolnierkiewicz]

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?

Just a guess but maybe SG_IO filtering is involved?
Does cdda2wav work for a root user?

> > > Regards,
> > > Boris.
> 
> Boris.
> 
> 

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Friday 01 October 2004 01:30, 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?
>
> Just a guess but maybe SG_IO filtering is involved?
> Does cdda2wav work for a root user?
>
Actually, I ran all the tests only as root...
Should I continue testing with the 2.6.7 -mm series?

Regards,
Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Jens Axboe]

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.

-- 
Jens Axboe

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

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...

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Jens Axboe]

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?

-- 
Jens Axboe

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

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.

Re: Fw: Re: 2.6.9-rc2-mm4

[Jens Axboe]

On Fri, Oct 01 2004, Borislav Petkov wrote:
> > > > 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? 

maybe it would be more useful if you tried the -bk snapshots in between
2.6.7 and 2.6.8 to locate where the problem started. try the 2.6.8-rc
first, then try the snapshots in between when you find where the problem
was introduced.

-- 
Jens Axboe

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Friday 01 October 2004 12:34, Borislav Petkov wrote:
> 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?

After booting with "acpi=off noapic", I found something that might bring us further:

<snip>
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0 <----
PCI: Using IRQ router PIIX/ICH [8086/24c0] at 0000:00:1f.0
PCI: IRQ 0 for device 0000:00:1f.1 doesn't match PIRQ mask - try pci=usepirqmask
PCI: Found IRQ 5 for device 0000:00:1f.1
PCI: Sharing IRQ 5 with 0000:00:1d.2
</snip>

Well, 0000:00:1f.0 is the IDE controller so later today I'll try the pci=usepirqmask boot option. Comments?

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Friday 01 October 2004 13:03, Borislav Petkov wrote:
> On Friday 01 October 2004 12:34, Borislav Petkov wrote:
> > 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?
>
> After booting with "acpi=off noapic", I found something that might bring us
> further:
>
> <snip>
> PCI: Probing PCI hardware
> PCI: Probing PCI hardware (bus 00)
> PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
> PCI: Transparent bridge - 0000:00:1e.0 <----
> PCI: Using IRQ router PIIX/ICH [8086/24c0] at 0000:00:1f.0
> PCI: IRQ 0 for device 0000:00:1f.1 doesn't match PIRQ mask - try
> pci=usepirqmask PCI: Found IRQ 5 for device 0000:00:1f.1
> PCI: Sharing IRQ 5 with 0000:00:1d.2
> </snip>
>
> Well, 0000:00:1f.0 is the IDE controller so later today I'll try the
> pci=usepirqmask boot option. Comments?
>

Still no luck with different boot options. Beginning to test the 2.6.8-rc 
series...

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Friday 01 October 2004 20:42, Borislav Petkov wrote:
> On Friday 01 October 2004 13:03, Borislav Petkov wrote:
> > On Friday 01 October 2004 12:34, Borislav Petkov wrote:
> > > 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?
> >
> > After booting with "acpi=off noapic", I found something that might bring
> > us further:
> >
> > <snip>
> > PCI: Probing PCI hardware
> > PCI: Probing PCI hardware (bus 00)
> > PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
> > PCI: Transparent bridge - 0000:00:1e.0 <----
> > PCI: Using IRQ router PIIX/ICH [8086/24c0] at 0000:00:1f.0
> > PCI: IRQ 0 for device 0000:00:1f.1 doesn't match PIRQ mask - try
> > pci=usepirqmask PCI: Found IRQ 5 for device 0000:00:1f.1
> > PCI: Sharing IRQ 5 with 0000:00:1d.2
> > </snip>
> >
> > Well, 0000:00:1f.0 is the IDE controller so later today I'll try the
> > pci=usepirqmask boot option. Comments?
>
> Still no luck with different boot options. Beginning to test the 2.6.8-rc
> series...

Testing log:

2.6.8-rc1: OK
2.6.8-rc2: OK
2.6.8-rc3: OK
2.6.8-rc4: BUG!

OK, we got the two releases inbetween which the problem got introduced. Gonna 
continue testing with the 4 incremental bk snapshots patch-2.6.8-rc3-bk[1-4] 
now. To be continued...

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Sunday 03 October 2004 09:51, Borislav Petkov wrote:
> On Friday 01 October 2004 20:42, Borislav Petkov wrote:
> > On Friday 01 October 2004 13:03, Borislav Petkov wrote:
> > > On Friday 01 October 2004 12:34, Borislav Petkov wrote:
> > > > 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?
> > >
> > > After booting with "acpi=off noapic", I found something that might
> > > bring us further:
> > >
> > > <snip>
> > > PCI: Probing PCI hardware
> > > PCI: Probing PCI hardware (bus 00)
> > > PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
> > > PCI: Transparent bridge - 0000:00:1e.0 <----
> > > PCI: Using IRQ router PIIX/ICH [8086/24c0] at 0000:00:1f.0
> > > PCI: IRQ 0 for device 0000:00:1f.1 doesn't match PIRQ mask - try
> > > pci=usepirqmask PCI: Found IRQ 5 for device 0000:00:1f.1
> > > PCI: Sharing IRQ 5 with 0000:00:1d.2
> > > </snip>
> > >
> > > Well, 0000:00:1f.0 is the IDE controller so later today I'll try the
> > > pci=usepirqmask boot option. Comments?
> >
> > Still no luck with different boot options. Beginning to test the 2.6.8-rc
> > series...
>
> Testing log:
>
> 2.6.8-rc1: OK
> 2.6.8-rc2: OK
> 2.6.8-rc3: OK
> 2.6.8-rc4: BUG!
>
> OK, we got the two releases inbetween which the problem got introduced.
> Gonna continue testing with the 4 incremental bk snapshots
> patch-2.6.8-rc3-bk[1-4] now. To be continued...
>
Ok here we go,

final results:

 2.6.8-rc1: OK
 2.6.8-rc2: OK
 2.6.8-rc3: OK
 2.6.8-rc3-bk1: OK
 2.6.8-rc3-bk2: OK
 2.6.8-rc3-bk3: OK
 2.6.8-rc3-bk4: OK
 2.6.8-rc4: BUG!

So, assuming that everything went fine during testing, the bug got introduced 
in the transition between 2.6.8-rc3-bk4 and 2.6.8-rc4.

Comments?

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Jens Axboe]

On Mon, Oct 04 2004, Borislav Petkov wrote:
> Ok here we go,
> 
> final results:
> 
>  2.6.8-rc1: OK
>  2.6.8-rc2: OK
>  2.6.8-rc3: OK
>  2.6.8-rc3-bk1: OK
>  2.6.8-rc3-bk2: OK
>  2.6.8-rc3-bk3: OK
>  2.6.8-rc3-bk4: OK
>  2.6.8-rc4: BUG!
> 
> So, assuming that everything went fine during testing, the bug got introduced 
> in the transition between 2.6.8-rc3-bk4 and 2.6.8-rc4.

That's some nice testing, thank you. Try backing out this hunk:

diff -urp linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c linux-2.6.8-rc4/drivers/block/scsi_ioctl.c
--- linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c	2004-08-03 23:28:51.000000000 +0200
+++ linux-2.6.8-rc4/drivers/block/scsi_ioctl.c	2004-08-10 04:24:08.000000000 +0200
@@ -90,7 +90,7 @@ static int sg_set_reserved_size(request_
 	if (size < 0)
 		return -EINVAL;
 	if (size > (q->max_sectors << 9))
-		return -EINVAL;
+		size = q->max_sectors << 9;
 
 	q->sg_reserved_size = size;
 	return 0;

It's the only thing that sticks out, and it could easily explain it if
your cd ripper starts issuing requests that are too big. Maybe even add
a printk() here, so it will look like this in the kernel you test:

	if (size > (q->sectors << 9)) {
		printk("%u rejected\n", size);
		return -EINVAL;
	}

to verify.

-- 
Jens Axboe

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Monday 04 October 2004 19:36, Jens Axboe wrote:
> On Mon, Oct 04 2004, Borislav Petkov wrote:
> > Ok here we go,
> >
> > final results:
> >
> >  2.6.8-rc1: OK
> >  2.6.8-rc2: OK
> >  2.6.8-rc3: OK
> >  2.6.8-rc3-bk1: OK
> >  2.6.8-rc3-bk2: OK
> >  2.6.8-rc3-bk3: OK
> >  2.6.8-rc3-bk4: OK
> >  2.6.8-rc4: BUG!
> >
> > So, assuming that everything went fine during testing, the bug got
> > introduced in the transition between 2.6.8-rc3-bk4 and 2.6.8-rc4.
>
> That's some nice testing, thank you. Try backing out this hunk:
>
> diff -urp linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c
> linux-2.6.8-rc4/drivers/block/scsi_ioctl.c ---
> linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c 2004-08-03
> 23:28:51.000000000 +0200 +++
> linux-2.6.8-rc4/drivers/block/scsi_ioctl.c 2004-08-10 04:24:08.000000000
> +0200 @@ -90,7 +90,7 @@ static int sg_set_reserved_size(request_
>   if (size < 0)
>    return -EINVAL;
>   if (size > (q->max_sectors << 9))
> -  return -EINVAL;
> +  size = q->max_sectors << 9;
>
>   q->sg_reserved_size = size;
>   return 0;
>
> It's the only thing that sticks out, and it could easily explain it if
> your cd ripper starts issuing requests that are too big. Maybe even add
> a printk() here, so it will look like this in the kernel you test:
>
>  if (size > (q->sectors << 9)) {
>   printk("%u rejected\n", size);
>   return -EINVAL;
>  }
>
> to verify.

Yeah, that was it. Two lines in the log:

Oct 4 22:07:04 zmei kernel: 3145728 rejected
Oct 4 22:07:04 zmei kernel: 3145728 rejected

Hmm, so this means that my dvd drive is sending too big requests. What do we 
do: firmware upgrade?

Regards,
Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Jens Axboe]

On Mon, Oct 04 2004, Borislav Petkov wrote:
> On Monday 04 October 2004 19:36, Jens Axboe wrote:
> > On Mon, Oct 04 2004, Borislav Petkov wrote:
> > > Ok here we go,
> > >
> > > final results:
> > >
> > >  2.6.8-rc1: OK
> > >  2.6.8-rc2: OK
> > >  2.6.8-rc3: OK
> > >  2.6.8-rc3-bk1: OK
> > >  2.6.8-rc3-bk2: OK
> > >  2.6.8-rc3-bk3: OK
> > >  2.6.8-rc3-bk4: OK
> > >  2.6.8-rc4: BUG!
> > >
> > > So, assuming that everything went fine during testing, the bug got
> > > introduced in the transition between 2.6.8-rc3-bk4 and 2.6.8-rc4.
> >
> > That's some nice testing, thank you. Try backing out this hunk:
> >
> > diff -urp linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c
> > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c ---
> > linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c 2004-08-03
> > 23:28:51.000000000 +0200 +++
> > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c 2004-08-10 04:24:08.000000000
> > +0200 @@ -90,7 +90,7 @@ static int sg_set_reserved_size(request_
> >   if (size < 0)
> >    return -EINVAL;
> >   if (size > (q->max_sectors << 9))
> > -  return -EINVAL;
> > +  size = q->max_sectors << 9;
> >
> >   q->sg_reserved_size = size;
> >   return 0;
> >
> > It's the only thing that sticks out, and it could easily explain it if
> > your cd ripper starts issuing requests that are too big. Maybe even add
> > a printk() here, so it will look like this in the kernel you test:
> >
> >  if (size > (q->sectors << 9)) {
> >   printk("%u rejected\n", size);
> >   return -EINVAL;
> >  }
> >
> > to verify.
> 
> Yeah, that was it. Two lines in the log:
> 
> Oct 4 22:07:04 zmei kernel: 3145728 rejected
> Oct 4 22:07:04 zmei kernel: 3145728 rejected
> 
> Hmm, so this means that my dvd drive is sending too big requests. What do we 
> do: firmware upgrade?

It actually means we have a little discrepancy between what programs
expact of the api. What program are you using? They are supposed to read
back what value has been set with SG_GET_RESERVED_SIZE, I guess this one
does not.

What's a little extra strange is that this command apparently doesn't
have ->dxfer_len set to the correct size, or it should be caught in
sg_io() at issue time.

-- 
Jens Axboe

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Monday 04 October 2004 22:42, Jens Axboe wrote:
> On Mon, Oct 04 2004, Borislav Petkov wrote:
> > On Monday 04 October 2004 19:36, Jens Axboe wrote:
> > > On Mon, Oct 04 2004, Borislav Petkov wrote:
> > > > Ok here we go,
> > > >
> > > > final results:
> > > >
> > > >  2.6.8-rc1: OK
> > > >  2.6.8-rc2: OK
> > > >  2.6.8-rc3: OK
> > > >  2.6.8-rc3-bk1: OK
> > > >  2.6.8-rc3-bk2: OK
> > > >  2.6.8-rc3-bk3: OK
> > > >  2.6.8-rc3-bk4: OK
> > > >  2.6.8-rc4: BUG!
> > > >
> > > > So, assuming that everything went fine during testing, the bug got
> > > > introduced in the transition between 2.6.8-rc3-bk4 and 2.6.8-rc4.
> > >
> > > That's some nice testing, thank you. Try backing out this hunk:
> > >
> > > diff -urp linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c
> > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c ---
> > > linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c 2004-08-03
> > > 23:28:51.000000000 +0200 +++
> > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c 2004-08-10
> > > 04:24:08.000000000 +0200 @@ -90,7 +90,7 @@ static int
> > > sg_set_reserved_size(request_ if (size < 0)
> > >    return -EINVAL;
> > >   if (size > (q->max_sectors << 9))
> > > -  return -EINVAL;
> > > +  size = q->max_sectors << 9;
> > >
> > >   q->sg_reserved_size = size;
> > >   return 0;
> > >
> > > It's the only thing that sticks out, and it could easily explain it if
> > > your cd ripper starts issuing requests that are too big. Maybe even add
> > > a printk() here, so it will look like this in the kernel you test:
> > >
> > >  if (size > (q->sectors << 9)) {
> > >   printk("%u rejected\n", size);
> > >   return -EINVAL;
> > >  }
> > >
> > > to verify.
> >
> > Yeah, that was it. Two lines in the log:
> >
> > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> >
> > Hmm, so this means that my dvd drive is sending too big requests. What do
> > we do: firmware upgrade?
>
> It actually means we have a little discrepancy between what programs
> expact of the api. What program are you using? They are supposed to read
> back what value has been set with SG_GET_RESERVED_SIZE, I guess this one
> does not
> 
It is called cdda2wav and it is part of the cdrtools package by Joerg 
Schilling.  
>
> What's a little extra strange is that this command apparently doesn't
> have ->dxfer_len set to the correct size, or it should be caught in
> sg_io() at issue time.

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Jens Axboe]

On Mon, Oct 04 2004, Borislav Petkov wrote:
> On Monday 04 October 2004 22:42, Jens Axboe wrote:
> > On Mon, Oct 04 2004, Borislav Petkov wrote:
> > > On Monday 04 October 2004 19:36, Jens Axboe wrote:
> > > > On Mon, Oct 04 2004, Borislav Petkov wrote:
> > > > > Ok here we go,
> > > > >
> > > > > final results:
> > > > >
> > > > >  2.6.8-rc1: OK
> > > > >  2.6.8-rc2: OK
> > > > >  2.6.8-rc3: OK
> > > > >  2.6.8-rc3-bk1: OK
> > > > >  2.6.8-rc3-bk2: OK
> > > > >  2.6.8-rc3-bk3: OK
> > > > >  2.6.8-rc3-bk4: OK
> > > > >  2.6.8-rc4: BUG!
> > > > >
> > > > > So, assuming that everything went fine during testing, the bug got
> > > > > introduced in the transition between 2.6.8-rc3-bk4 and 2.6.8-rc4.
> > > >
> > > > That's some nice testing, thank you. Try backing out this hunk:
> > > >
> > > > diff -urp linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c
> > > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c ---
> > > > linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c 2004-08-03
> > > > 23:28:51.000000000 +0200 +++
> > > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c 2004-08-10
> > > > 04:24:08.000000000 +0200 @@ -90,7 +90,7 @@ static int
> > > > sg_set_reserved_size(request_ if (size < 0)
> > > >    return -EINVAL;
> > > >   if (size > (q->max_sectors << 9))
> > > > -  return -EINVAL;
> > > > +  size = q->max_sectors << 9;
> > > >
> > > >   q->sg_reserved_size = size;
> > > >   return 0;
> > > >
> > > > It's the only thing that sticks out, and it could easily explain it if
> > > > your cd ripper starts issuing requests that are too big. Maybe even add
> > > > a printk() here, so it will look like this in the kernel you test:
> > > >
> > > >  if (size > (q->sectors << 9)) {
> > > >   printk("%u rejected\n", size);
> > > >   return -EINVAL;
> > > >  }
> > > >
> > > > to verify.
> > >
> > > Yeah, that was it. Two lines in the log:
> > >
> > > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> > > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> > >
> > > Hmm, so this means that my dvd drive is sending too big requests. What do
> > > we do: firmware upgrade?
> >
> > It actually means we have a little discrepancy between what programs
> > expact of the api. What program are you using? They are supposed to read
> > back what value has been set with SG_GET_RESERVED_SIZE, I guess this one
> > does not
> > 
> It is called cdda2wav and it is part of the cdrtools package by Joerg 
> Schilling.  

Then it's a bug for sure. Not because it's Joerg, but because the
semantics in the newer kernel is what he wanted. And what sg has been
doing for a long time. The difference is that if you go through
sg/ide-scsi, the scsi mid layer will handle requeueing a request for
you. Most other drivers don't support requests larger than what the
drive can handle in one operation.

You don't have an old version or anything like that, do you?

-- 
Jens Axboe

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Tuesday 05 October 2004 09:12, Jens Axboe wrote:
> On Mon, Oct 04 2004, Borislav Petkov wrote:
> > On Monday 04 October 2004 22:42, Jens Axboe wrote:
> > > On Mon, Oct 04 2004, Borislav Petkov wrote:
> > > > On Monday 04 October 2004 19:36, Jens Axboe wrote:
> > > > > On Mon, Oct 04 2004, Borislav Petkov wrote:
> > > > > > Ok here we go,
> > > > > >
> > > > > > final results:
> > > > > >
> > > > > >  2.6.8-rc1: OK
> > > > > >  2.6.8-rc2: OK
> > > > > >  2.6.8-rc3: OK
> > > > > >  2.6.8-rc3-bk1: OK
> > > > > >  2.6.8-rc3-bk2: OK
> > > > > >  2.6.8-rc3-bk3: OK
> > > > > >  2.6.8-rc3-bk4: OK
> > > > > >  2.6.8-rc4: BUG!
> > > > > >
> > > > > > So, assuming that everything went fine during testing, the bug
> > > > > > got introduced in the transition between 2.6.8-rc3-bk4 and
> > > > > > 2.6.8-rc4.
> > > > >
> > > > > That's some nice testing, thank you. Try backing out this hunk:
> > > > >
> > > > > diff -urp linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c
> > > > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c ---
> > > > > linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c 2004-08-03
> > > > > 23:28:51.000000000 +0200 +++
> > > > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c 2004-08-10
> > > > > 04:24:08.000000000 +0200 @@ -90,7 +90,7 @@ static int
> > > > > sg_set_reserved_size(request_ if (size < 0)
> > > > >    return -EINVAL;
> > > > >   if (size > (q->max_sectors << 9))
> > > > > -  return -EINVAL;
> > > > > +  size = q->max_sectors << 9;
> > > > >
> > > > >   q->sg_reserved_size = size;
> > > > >   return 0;
> > > > >
> > > > > It's the only thing that sticks out, and it could easily explain it
> > > > > if your cd ripper starts issuing requests that are too big. Maybe
> > > > > even add a printk() here, so it will look like this in the kernel
> > > > > you test:
> > > > >
> > > > >  if (size > (q->sectors << 9)) {
> > > > >   printk("%u rejected\n", size);
> > > > >   return -EINVAL;
> > > > >  }
> > > > >
> > > > > to verify.
> > > >
> > > > Yeah, that was it. Two lines in the log:
> > > >
> > > > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> > > > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> > > >
> > > > Hmm, so this means that my dvd drive is sending too big requests.
> > > > What do we do: firmware upgrade?
> > >
> > > It actually means we have a little discrepancy between what programs
> > > expact of the api. What program are you using? They are supposed to
> > > read back what value has been set with SG_GET_RESERVED_SIZE, I guess
> > > this one does not
> >
> > It is called cdda2wav and it is part of the cdrtools package by Joerg
> > Schilling.
>
> Then it's a bug for sure. Not because it's Joerg, but because the
> semantics in the newer kernel is what he wanted. And what sg has been
> doing for a long time. The difference is that if you go through
> sg/ide-scsi, the scsi mid layer will handle requeueing a request for
> you. Most other drivers don't support requests larger than what the
> drive can handle in one operation.
>
> You don't have an old version or anything like that, do you?
You mean cdda2wav? No I think it is a bleeding edge version since I run debian 
unstable:

Package: cdda2wav
Status: install ok installed
Priority: optional
Section: sound
Installed-Size: 324
Maintainer: Joerg Jaspert <joerg@debian.org>
Architecture: i386
Source: cdrtools
Version: 4:2.0+a38-1
Depends: libc6 (>= 2.3.2.ds1-4)
Suggests: vorbis-tools, cdrtools-doc
Conflicts: xcdroast (<< 0.98+0alpha11)
Description: Creates WAV files from audio CDs
 cdda2wav lets you digitally copy audio tracks from a CD-ROM, avoiding
 the distortion that is introduced when recording via a sound card. Data
 can be dumped into raw (cdr), wav or sun format sound files. Options control
 the recording format (stereo/mono; 8/16 bits; sampling rate, etc).
 .
 Please install cdrtools-doc if you want most of the documentation and
 Readme-files.

It is one of the latest alpha versions according to the cdrtools website.

Boris.

Re: Fw: Re: 2.6.9-rc2-mm4

[Borislav Petkov]

On Monday 04 October 2004 22:42, Jens Axboe wrote:
> On Mon, Oct 04 2004, Borislav Petkov wrote:
> > On Monday 04 October 2004 19:36, Jens Axboe wrote:
> > > On Mon, Oct 04 2004, Borislav Petkov wrote:
> > > > Ok here we go,
> > > >
> > > > final results:
> > > >
> > > >  2.6.8-rc1: OK
> > > >  2.6.8-rc2: OK
> > > >  2.6.8-rc3: OK
> > > >  2.6.8-rc3-bk1: OK
> > > >  2.6.8-rc3-bk2: OK
> > > >  2.6.8-rc3-bk3: OK
> > > >  2.6.8-rc3-bk4: OK
> > > >  2.6.8-rc4: BUG!
> > > >
> > > > So, assuming that everything went fine during testing, the bug got
> > > > introduced in the transition between 2.6.8-rc3-bk4 and 2.6.8-rc4.
> > >
> > > That's some nice testing, thank you. Try backing out this hunk:
> > >
> > > diff -urp linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c
> > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c ---
> > > linux-2.6.8-rc3-bk4/drivers/block/scsi_ioctl.c 2004-08-03
> > > 23:28:51.000000000 +0200 +++
> > > linux-2.6.8-rc4/drivers/block/scsi_ioctl.c 2004-08-10
> > > 04:24:08.000000000 +0200 @@ -90,7 +90,7 @@ static int
> > > sg_set_reserved_size(request_ if (size < 0)
> > >    return -EINVAL;
> > >   if (size > (q->max_sectors << 9))
> > > -  return -EINVAL;
> > > +  size = q->max_sectors << 9;
> > >
> > >   q->sg_reserved_size = size;
> > >   return 0;
> > >
> > > It's the only thing that sticks out, and it could easily explain it if
> > > your cd ripper starts issuing requests that are too big. Maybe even add
> > > a printk() here, so it will look like this in the kernel you test:
> > >
> > >  if (size > (q->sectors << 9)) {
> > >   printk("%u rejected\n", size);
> > >   return -EINVAL;
> > >  }
> > >
> > > to verify.
> >
> > Yeah, that was it. Two lines in the log:
> >
> > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> > Oct 4 22:07:04 zmei kernel: 3145728 rejected
> >
> > Hmm, so this means that my dvd drive is sending too big requests. What do
> > we do: firmware upgrade?
>
> It actually means we have a little discrepancy between what programs
> expact of the api. What program are you using? They are supposed to read
> back what value has been set with SG_GET_RESERVED_SIZE, I guess this one
> does not.
>
> What's a little extra strange is that this command apparently doesn't
> have ->dxfer_len set to the correct size, or it should be caught in
> sg_io() at issue time.

Sorry if I've flooded your mails but I've been playing with Postfix ... 8)

Boris.