linux-kernel - Re: ata_piix, laptop cdrom, ICH7: EH, limiting speed to PIO

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Message-ID: <20070912200706.GA2620@slk.laptop>
Date:	Thu, 13 Sep 2007 00:07:06 +0400
From:	Sergey Dolgov <dolgovs@...il.com>
To:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>
Cc:	Tejun Heo <htejun@...il.com>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org
Subject: Re: ata_piix, laptop cdrom, ICH7: EH, limiting speed to PIO

Hi Michal,

On Wed, Sep 12, 2007 at 06:33:20PM +0200, Michal Piotrowski wrote:
> Hi Sergey,
> 
> On 11/09/2007, Sergey Dolgov <dolgovs@...il.com> wrote:
> > Hi!
> >
> > On my hp nx7300 laptop, 2 following scenarios can happen during bootup
> > (see attachments for the full logs): the "good" one [1] and the one
> > where multiple EHs lead to limiting the speed [2].
> >
> > [1] one is more rare, but it seems to be persistent over reboots: once
> > it happened, just rebooting the machine always results in behaviour
> > like [1].
> >
> > [1] results in a working cdrom from the start. An attempt to use cdrom
> > after [2] happened results in even more EHs, resulting in "configured
> > for PIO4", after which the cdrom is finaly working.
> >
> > The version I'm using is 2.6.23-rc6, but the same used to happen with
> > the previous rc's, and probably with 2.6.22 too (I can check).
> 
> It would be great if you could check it.

I've just built 2.6.22.6 with basically the same configuration, and
the behaviour is just the same, i.e. both [1] and [2] still can
happen.

> >
> > [1]:
> >
> >    [   13.026676] ata_piix 0000:00:1f.1: version 2.12
> >    [   13.026701] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16
> >    [   13.026898] PCI: Setting latency timer of device 0000:00:1f.1 to 64
> >    [   13.026994] scsi4 : ata_piix
> >    [   13.027209] scsi5 : ata_piix
> >    [   13.027385] ata5: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x000140a0 irq 14
> >    [   13.027484] ata6: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x000140a8 irq 15
> >    [   13.339308] ata5.00: ATAPI: HL-DT-ST DVDRAM GSA-T10N, PC05, max MWDMA2
> >    [   13.505922] ata5.00: configured for MWDMA2
> >    [   13.506026] ata6: port disabled. ignoring.
> >    [   13.509916] scsi 4:0:0:0: CD-ROM            HL-DT-ST DVDRAM GSA-T10N  PC05 PQ: 0 ANSI: 5
> >
> > [2]:
> >
> >    [   10.007152] ata_piix 0000:00:1f.1: version 2.12
> >    [   10.007178] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16
> >    [   10.007369] PCI: Setting latency timer of device 0000:00:1f.1 to 64
> >    [   10.007464] scsi4 : ata_piix
> >    [   10.007680] scsi5 : ata_piix
> >    [   10.007856] ata5: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x000140a0 irq 14
> >    [   10.007956] ata6: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x000140a8 irq 15
> >    [   10.320462] ata5.00: ATAPI: HL-DT-ST DVDRAM GSA-T10N, PC05, max MWDMA2
> >    [   10.487077] ata5.00: configured for MWDMA2
> >    [   10.487181] ata6: port disabled. ignoring.
> >    [   15.985240] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> >    [   15.985325] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in
> >    [   15.985327]          res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> >    [   15.985532] ata5: soft resetting port
> >    [   16.465489] ata5.00: configured for MWDMA2
> >    [   16.465571] ata5: EH complete
> >    [   21.963643] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> >    [   21.963725] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in
> >    [   21.963727]          res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> >    [   21.963930] ata5: soft resetting port
> >    [   22.443900] ata5.00: configured for MWDMA2
> >    [   22.443979] ata5: EH complete
> >    [   27.942051] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> >    [   27.942134] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in
> >    [   27.942136]          res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> >    [   27.942341] ata5: soft resetting port
> >    [   28.422309] ata5.00: configured for MWDMA2
> >    [   28.422389] ata5: EH complete
> >    [   33.920457] ata5.00: limiting speed to MWDMA1:PIO4
> >    [   33.920532] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> >    [   33.920614] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in
> >    [   33.920616]          res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> >    [   33.920820] ata5: soft resetting port
> >    [   34.400708] ata5.00: configured for MWDMA1
> >    [   34.400790] ata5: EH complete
> >    [   34.400869] scsi scan: 96 byte inquiry failed.  Consider BLIST_INQUIRY_36 for this device
> >    [   34.402855] scsi 4:0:0:0: CD-ROM            HL-DT-ST DVDRAM GSA-T10N  PC05 PQ: 0 ANSI: 5
> >
> >

--
Sergey
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