freebsd stable - Jun 2005 - ATA DMA timeouts [NOT FIXED] (forget my last mail)

Hi (again),

believe it or not. After sending the last mail and closing
firefox, the system has been hanging for a few seconds and
spit this out:

ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=226025086

I'm back on kernel of May 26th again. This time I did not have
a corrupted file system or at least not as badly corrupted that
it panics the kernel, like the first time.

Usually my system has DMA timeouts very early while booting up
and creates mess on the file systems.

Sorry for causing noise. :(
I'm going to test a kernel every week and report, when the
problems are gone.

Martin

Hello Martin,

M> believe it or not. After sending the last mail and closing
M> firefox, the system has been hanging for a few seconds and
M> spit this out:

M> ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=226025086

Yeah, I updated and rebuilt on seeing your email, but found it did
little.  I has TIMEOUTs again within 10 minutes of rebooting.

M> Sorry for causing noise. :(
M> I'm going to test a kernel every week and report, when the
M> problems are gone.

I'd certainly be interested in hearing about your results, but from
the general lack of discussion of the problem on this list, I'm
guessing we may be on our own. I'm not sure anyone is actually working
on a "fix", because I'm not sure the problem is recognized.

I have two separate Intel IHC5 based boxes affected by DMA TIMEOUTS,
both with SATA drives and I'd like to get to the bottom of this.

Regards,

Tony.

-- 
Tony Byrne