linux-kernel - Re: [Regression] 2.6.25-rc4-git3: Handling of audio CDs broken on pata

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Message-Id: <200803100012.27520.rjw@sisk.pl>
Date:	Mon, 10 Mar 2008 00:12:27 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Andrey Borzenkov <arvidjaar@...l.ru>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: [Regression] 2.6.25-rc4-git3: Handling of audio CDs broken on pata_ali

On Sunday, 9 of March 2008, Andrey Borzenkov wrote:
> Rafael J. Wysocki wrote:
> 
> > Hi,
> > 
> > On one of my test boxes I'm unable to do just about anything with audio
> > CDs using the current -git (2.6.24 is fine in that respect on the same
> > box).
> > 
> > When an audio CD is inserted into the drive, I get the following errors in
> > dmesg and nothing more happens (quite obviously):
> > 
> > ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> > ata1.00: cmd a0/01:00:00:10:00/00:00:00:00:00/a0 tag 0 dma 16400 in
> >          cdb 42 02 40 01 00 00 00 00  10 00 00 00 00 00 00 00
> >          res 40/00:00:00:18:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> > ata1.00: status: { DRDY }
> > ata1: soft resetting link
> > ata1.00: configured for UDMA/33
> > ata1: EH complete
> > ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> > ata1.00: cmd a0/01:00:00:10:00/00:00:00:00:00/a0 tag 0 dma 16400 in
> >          cdb 42 02 40 01 00 00 00 00  10 00 00 00 00 00 00 00
> >          res 40/00:00:00:18:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> > ata1.00: status: { DRDY }
> > ata1: port is slow to respond, please be patient (Status 0x80)
> > ata1: device not ready (errno=-16), forcing hardreset
> > ata1: soft resetting link
> > ata1.00: qc timeout (cmd 0xa1)
> > ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
> > ata1.00: revalidation failed (errno=-5)
> > ata1: failed to recover some devices, retrying in 5 secs
> > ata1: port is slow to respond, please be patient (Status 0x80)
> > ata1: device not ready (errno=-16), forcing hardreset
> > ata1: soft resetting link
> > ata1.00: qc timeout (cmd 0xa1)
> > ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
> > ata1.00: revalidation failed (errno=-5)
> > ata1: failed to recover some devices, retrying in 5 secs
> > ata1: port is slow to respond, please be patient (Status 0x80)
> > ata1: device not ready (errno=-16), forcing hardreset
> > ata1: soft resetting link
> > ata1.00: qc timeout (cmd 0xa1)
> > ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
> > ata1.00: revalidation failed (errno=-5)
> > ata1.00: disabled
> > 
> > where ata1 is:
> > 
> > scsi0 : pata_ali
> > scsi1 : pata_ali
> 
> Oh, is it only with audio CDs? I am unable to use DVD on pata_ali in DMA at
> all. Have you tried to disable ATAPI DMA (libata.dma=1)?

Data CDs seem to work fine here.

Thanks,
Rafael
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