Low speed disk subsystem after the upgrade 8.1-STABLE-201011 --> 9-CURRENT

Andriy Gapon avg at freebsd.org
Wed Dec 15 15:16:28 UTC 2010

on 15/12/2010 16:25 Olivier Smedts said the following:
> 2010/12/15 Vladislav V. Prodan <universite at ukr.net>:
>> 15.12.2010 15:11, Vladislav V. Prodan wrote:
>>> Now try to attach a screenshot.
>> http://img576.imageshack.us/i/dsc00563u.jpg/
> ad6: TIMEOUT - READ_DMA retrying (1 retry left) LBA=8638372
> Maybe installkernel/installworld copied files on bad clusters, they
> were previously bad but you notice only now that there are system
> files on them...

This indeed looks like a problem caused by disk.
There shouldn't have been the panic though ("bio_completed can't be greater than
It's a possible geom or ad driver problem.
What is your geom topology on this system?

Changing cc: from fs@ to geom at .

Andriy Gapon

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