IDE/ATAPI timeouts & lost interrupts on alpha with 2.6.20.2

IDE/ATAPI timeouts & lost interrupts on alpha with 2.6.20.2

[Russell Howe]

Evening all,

I just built a 2.6.20.2 kernel for my alpha (a digital personal
workstation 500AU), and on bootup noticed the messages below, which took
a long time to print. There was no media in the CDROM, and there's
nothing else hanging off the IDE controller. The messages took several
minutes to appear, stalling the boot process.

Unrelated, no doubt, but the output from the init scripts doesn't seem
to have made it to the serial console, so I'm not sure what processes
were running at the time.

The last kernel I ran on this thing was 2.6.17.11, which I appreciate is
a long time ago, so if anyone could suggest a starting point for a
binary search to determine the change which caused this regression, I'm
all ears! Kernels take a while to build on this box, and I haven't got a
crosscompiling toolchain setup...

What's the best way to go about debugging this?

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
[...]
CY82C693: IDE controller at PCI slot 0000:00:07.1
CY82C693: chipset revision 0
CY82C693: not 100% native mode: will probe irqs later
CY82C693U driver v0.34 99-13-12 Andreas S. Krebs (akrebs@altavista.net)
    ide0: BM-DMA at 0x9080-0x9087, BIOS settings: hda:pio, hdb:pio
PCI: Enabling device: (0000:00:07.2), cmd 47
CY82C693: port 0x01f0 already claimed by ide0
CY82C693: neither IDE port enabled (BIOS)
Probing IDE interface ide0...
hda: TOSHIBA CD-ROM XM-6202B, ATAPI CD/DVD-ROM drive
hda: IRQ probe failed (0xfffffffff73bfeea)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide-cd: cmd 0x5a timed out
hda: lost interrupt
ide-cd: cmd 0x5a timed out
hda: lost interrupt
ide-cd: cmd 0x5a timed out
hda: lost interrupt
hda: ATAPI 32X CD-ROM drive, 256kB Cache, DMA
Uniform CD-ROM driver Revision: 3.20
hda: lost interrupt
ide-cd: cmd 0x3 timed out
hda: lost interrupt
ide-cd: cmd 0x3 timed out
hda: lost interrupt
hda: lost interrupt
ide-cd: cmd 0x3 timed out
hda: lost interrupt
ide-cd: cmd 0x3 timed out
hda: lost interrupt
hda: lost interrupt
ide-cd: cmd 0x3 timed out
hda: lost interrupt
ide-cd: cmd 0x3 timed out
hda: lost interrupt

-- 
Russell Howe       | Why be just another cog in the machine,
rhowe@siksai.co.uk | when you can be the spanner in the works?

Re: IDE/ATAPI timeouts & lost interrupts on alpha with 2.6.20.2

[Bartlomiej Zolnierkiewicz]

Hi,

On Saturday 10 March 2007, Russell Howe wrote:
> Evening all,
> 
> I just built a 2.6.20.2 kernel for my alpha (a digital personal
> workstation 500AU), and on bootup noticed the messages below, which took
> a long time to print. There was no media in the CDROM, and there's
> nothing else hanging off the IDE controller. The messages took several
> minutes to appear, stalling the boot process.
> 
> Unrelated, no doubt, but the output from the init scripts doesn't seem
> to have made it to the serial console, so I'm not sure what processes
> were running at the time.
> 
> The last kernel I ran on this thing was 2.6.17.11, which I appreciate is
> a long time ago, so if anyone could suggest a starting point for a
> binary search to determine the change which caused this regression, I'm
> all ears! Kernels take a while to build on this box, and I haven't got a
> crosscompiling toolchain setup...
> 
> What's the best way to go about debugging this?
> 
> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> [...]
> CY82C693: IDE controller at PCI slot 0000:00:07.1
> CY82C693: chipset revision 0
> CY82C693: not 100% native mode: will probe irqs later
> CY82C693U driver v0.34 99-13-12 Andreas S. Krebs (akrebs@altavista.net)
>     ide0: BM-DMA at 0x9080-0x9087, BIOS settings: hda:pio, hdb:pio
> PCI: Enabling device: (0000:00:07.2), cmd 47
> CY82C693: port 0x01f0 already claimed by ide0
> CY82C693: neither IDE port enabled (BIOS)

It seems that the generic IDE host driver is loaded first
(CONFIG_IDE_GENERIC=y/m) and "steals" resources needed by cy82c693.

Please try again without the generic IDE host driver so the proper
driver could be used.

If it doesn't help I think that the best way to chase it is git bisect.

Thanks,
Bart

> Probing IDE interface ide0...
> hda: TOSHIBA CD-ROM XTAPI CD/DVD-ROM drive
> hda: IRQ probe failed (0xfffffffff73bfeea)
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide-cd: cmd 0x5a timed out
> hda: lost interrupt
> ide-cd: cmd 0x5a timed out
> hda: lost interrupt
> ide-cd: cmd 0x5a timed out
> hda: lost interrupt
> hda: ATAPI 32X CD-ROM drive, 256kB Cache, DMA
> Uniform CD-ROM driver Revision: 3.20
> hda: lost interrupt
> ide-cd: cmd 0x3 timed out
> hda: lost interrupt
> ide-cd: cmd 0x3 timed out
> hda: lost interrupt
> hda: lost interrupt
> ide-cd: cmd 0x3 timed out
> hda: lost interrupt
> ide-cd: cmd 0x3 timed out
> hda: lost interrupt
> hda: lost interrupt
> ide-cd: cmd 0x3 timed out
> hda: lost interrupt
> ide-cd: cmd 0x3 timed out
> hda: lost interrupt
> 
> -- 
> Russell Howe       | Why be just another cog in the machine,
> rhowe@siksai.co.uk | when you can be the spanner in the works?

Re: IDE/ATAPI timeouts & lost interrupts on alpha with 2.6.20.2

[Russell Howe]

On Sun, Mar 11, 2007 at 01:02:13AM +0100, Bartlomiej Zolnierkiewicz wrote:
> > 
> > Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> > [...]
> > CY82C693: IDE controller at PCI slot 0000:00:07.1
> > CY82C693: chipset revision 0
> > CY82C693: not 100% native mode: will probe irqs later
> > CY82C693U driver v0.34 99-13-12 Andreas S. Krebs (akrebs@altavista.net)
> >     ide0: BM-DMA at 0x9080-0x9087, BIOS settings: hda:pio, hdb:pio
> > PCI: Enabling device: (0000:00:07.2), cmd 47
> > CY82C693: port 0x01f0 already claimed by ide0
> > CY82C693: neither IDE port enabled (BIOS)
> 
> It seems that the generic IDE host driver is loaded first
> (CONFIG_IDE_GENERIC=y/m) and "steals" resources needed by cy82c693.
> 
> Please try again without the generic IDE host driver so the proper
> driver could be used.

OK thanks.. new kernel building as I send this.

Could that be why the cy82c693 driver reports both IDE ports as disabled by
the BIOS, because the generic IDE layer 'stole' them?

... I suppose I'll find out soon enough :)

-- 
Russell Howe       | Why be just another cog in the machine,
rhowe@siksai.co.uk | when you can be the spanner in the works?

Re: IDE/ATAPI timeouts & lost interrupts on alpha with 2.6.20.2

[Russell Howe]

On Sun, Mar 11, 2007 at 01:02:13AM +0100, Bartlomiej Zolnierkiewicz wrote:
> 
> Hi,
> 
> It seems that the generic IDE host driver is loaded first
> (CONFIG_IDE_GENERIC=y/m) and "steals" resources needed by cy82c693.
> 
> Please try again without the generic IDE host driver so the proper
> driver could be used.

$ zgrep IDE_GENERIC /proc/config.gz
# CONFIG_IDE_GENERIC is not set

.. and I get the same behaviour

> If it doesn't help I think that the best way to chase it is git bisect

git-bisect, here I come..

-- 
Russell Howe       | Why be just another cog in the machine,
rhowe@siksai.co.uk | when you can be the spanner in the works?