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Old 11-20-2007, 02:15 PM
"Steve Bardsley"
 
Default F8 libata errors -- hardware failure or bug?

Greetings:

I have F8 running on new hardware, and believe the hardware to be
good. However,
I'm receiveing ATA errors very frequently. This is pointing to my DVD
drive, which is
the only IDE device in my system; all others ar SATA.

I know very little about libata et. al. so I'm looking for any
guidance on next troubleshooting steps.

Nov 20 10:05:19 scooter kernel: ata7.00: exception Emask 0x0 SAct 0x0
SErr 0x0 action 0x2 frozen
Nov 20 10:05:19 scooter kernel: ata7.00: cmd
a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0
Nov 20 10:05:19 scooter kernel: res
40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
Nov 20 10:05:19 scooter kernel: ata7: soft resetting port
Nov 20 10:05:19 scooter kernel: ata7.00: configured for PIO0
Nov 20 10:05:19 scooter kernel: ata7: EH complete
Nov 20 10:05:49 scooter kernel: ata7.00: exception Emask 0x0 SAct 0x0
SErr 0x0 action 0x2 frozen
Nov 20 10:05:49 scooter kernel: ata7.00: cmd
a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0
Nov 20 10:05:49 scooter kernel: res
40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
Nov 20 10:05:49 scooter kernel: ata7: soft resetting port
Nov 20 10:05:50 scooter kernel: ata7.00: configured for PIO0
Nov 20 10:05:50 scooter kernel: ata7: EH complete
Nov 20 10:06:20 scooter kernel: ata7.00: exception Emask 0x0 SAct 0x0
SErr 0x0 action 0x2 frozen
Nov 20 10:06:20 scooter kernel: ata7.00: cmd
a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0
Nov 20 10:06:20 scooter kernel: res
40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
Nov 20 10:06:20 scooter kernel: ata7: soft resetting port
Nov 20 10:06:20 scooter kernel: ata7.00: configured for PIO0
Nov 20 10:06:20 scooter kernel: ata7: EH complete

Regards,
Steve

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Old 11-20-2007, 03:17 PM
Simon Andrews
 
Default F8 libata errors -- hardware failure or bug?

Steve Bardsley wrote:

Greetings:

I have F8 running on new hardware, and believe the hardware to be
good. However,
I'm receiveing ATA errors very frequently. This is pointing to my DVD
drive, which is
the only IDE device in my system; all others ar SATA.

I know very little about libata et. al. so I'm looking for any
guidance on next troubleshooting steps.

Nov 20 10:05:19 scooter kernel: ata7.00: exception Emask 0x0 SAct 0x0


Oh boy is that familiar! I just spent a week troubleshooting exactly
the same error on one of our servers. The bug report is here:


https://bugzilla.redhat.com/show_bug.cgi?id=379771

The answer (or at least workround) was to append:

libata.pata_dma=1

..to the kenerl boot line. The new ata lib seems to cause a lot of
problems for a lot of people.


Hope this helps

Simon.

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Old 11-20-2007, 03:38 PM
Alan Cox
 
Default F8 libata errors -- hardware failure or bug?

> I know very little about libata et. al. so I'm looking for any
> guidance on next troubleshooting steps.

Please file a bug giving the hardware info (lspci -vvxxx) messages
(dmesg) and any info on what causes it. And then assign it to me
(alan@redhat.com)

Alan

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