[linux] DMA timeout error

[Cully Larson]

I searched google for "ide: failed opcode was: unknown" and came up
with this (along with other useful looking pages):

http://lists.centos.org/pipermail/centos/2005-November/056160.html

It looks like your same questions with some answers in replies.


Cully


On 3/12/07, Toshimi Minoura <minoura at eecs.oregonstate.edu> wrote:
> Hi,
>
> At around 17:45 pm on March 10, one of our servers
> running Ubuntu failed. I found the entries given below
> in /var/log/kern.log. When I tried to reboot the machine,
> the same DMA error was reported.
>
> What kind of error is this? I could read data from the failed (?) disk
> on another machine.
>
> Is the disk controller faulty or the disk itself?
>
> Thank you in advance for any help.
>
> Toshi
>
> ********
>
> Mar  8 18:54:46 nagara kernel: [17179611.320000] Bluetooth: RFCOMM socket layer
> initialized
> Mar  8 18:54:46 nagara kernel: [17179611.320000] Bluetooth: RFCOMM TTY layer
> initialized
> Mar  8 18:54:46 nagara kernel: [17179611.320000] Bluetooth: RFCOMM ver 1.7
>
> (*** Now errors start ***)
>
> Mar  9 13:34:48 nagara kernel: [17246708.456000] hda: dma_timer_expiry: dma
> status == 0x21
> Mar  9 13:34:48 nagara kernel: [17246718.456000] hda: DMA timeout error
> Mar  9 13:34:48 nagara kernel: [17246718.456000] hda: dma timeout error:
> status=0x58 { DriveRead\y SeekComplete DataRequest }
> Mar  9 13:34:48 nagara kernel: [17246718.456000] ide: failed opcode was: unknown
>   .   .   .
>
> Mar  9 13:34:48 nagara kernel: [17246798.572000] hda: dma_timer_expiry: dma
> status == 0x21
> Mar  9 13:34:48 nagara kernel: [17246808.572000] hda: DMA timeout error
> Mar  9 13:34:48 nagara kernel: [17246808.572000] hda: dma timeout error:
> status=0x58 { DriveRead\y SeekComplete DataRequest }
> Mar  9 13:34:48 nagara kernel: [17246808.572000] ide: failed opcode was: unknown
>
> (*** The server failed at 17:45 on March 10. ***)
>
> (*** Rebooting failed with the error reported above. ****)
>
> (*** The machine was rebooted with reconstructed mirrored disks. **)
>
> Mar 10 20:00:21 nagara kernel: Inspecting /boot/System.map-2.6.15-28-386
> Mar 10 20:00:21 nagara kernel: Loaded 23072 symbols from
> /boot/System.map-2.6.15-28-386.
> Mar 10 20:00:21 nagara kernel: Symbols match kernel version 2.6.15.
>
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