Re: HDD not suspending properly / dead on resume
From: Stephan Diestelhorst
Date: Fri Jul 09 2010 - 17:47:44 EST
I wrote:
> I have an issue with suspend to RAM and I/O load on a disk. Symptoms
> are that the disk does not respond to requests when woken up, producing
> only I/O errors on all tested kernels (newest 2.6.35-rc4 (Ubuntu
> mainline PPA build)):
>
<snip>
> This can be triggered most reliably with multiple "direct" writes to
> disk, I create the load with the attached script. If the issue is
> triggered, suspend (through pm-suspend) takes very long.
Attached now...
> IMHO the interesting log output during suspend is:
> [ 1674.700125] ata1.00: qc timeout (cmd 0xec)
Almighty google suggested to try "pci=nomsi", which seems to have
cured the issue for me for now. Is that plausible? I'll keep this
under observation.
Thanks,
Stephan
Attachment:
io_load.sh
Description: application/shellscript