linux-kernel - pata_via problem: soft reseting ata device

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Message-ID: <46FAB04D.502@kanardia.eu>
Date:	Wed, 26 Sep 2007 21:17:33 +0200
From:	Rok Markovic <kernel@...ardia.eu>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: pata_via problem: soft reseting ata device

Hi

I am using 2.6.23-rc8 and I am noticing a lot of these erors on my system:

[44664.740313] sr0: CDROM (ioctl) error, command: Test Unit Ready 00 00 00 00 00 00
[44664.740328] sr: Sense Key : Aborted Command [current] [descriptor]
[44664.740338] sr: Add. Sense: No additional sense information
[44674.712829] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[44674.712845] ata4.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x1e data 0
[44674.712849]          res 40/00:03:00:00:20/00:00:00:00:00/a0 Emask 0x4 (timeout)
[44674.712867] ata4: soft resetting port
[44675.873122] ata4.00: configured for PIO0
[44675.873150] ata4: EH complete
[44685.846320] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[44685.846336] ata4.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x1e data 0
[44685.846340]          res 40/00:03:00:00:20/00:00:00:00:00/a0 Emask 0x4 (timeout)
[44685.846358] ata4: soft resetting port
[44685.675306] ata4.00: configured for PIO0
[44685.675325] ata4: EH complete
....

I saw this problem first on 2.6.22 when i switched to pata_via driver. My system
is pentium 4 HT, sata disk, ide cdrom. In atachment I am sending kernel config.
I saw similar problems related to suspend, but in my case I get these messsages 
5-15minutes afte startup.

Is there any other information that you might need?

Best regards,
Rok Markovic

View attachment ".config" of type "text/plain" (45051 bytes)