[Linux-disciples] dma_timer_expiry problems

[Adam Rosi-Kessel]

On Tue, Jun 29, 2004 at 10:01:43PM -0400, Adam Rosi-Kessel wrote:
> I just got two new hard drives.  I'm getting the following sort of errors
> with both 2.4.x kernels and 2.6.x kernels:
> Jun 29 21:20:51 localhost kernel: hdb: dma_timer_expiry: dma status == 0x61

Still no progress figuring out these dma_timer errors, but the timing is
very suspicious.  Here is a list of every time these errors have
occurred, sort'ed and uniq'ed:

00:40:24 
00:40:49 
12:14:35 
12:27:46 
12:28:16 
12:40:18 
12:48:13 
14:00:02 
14:19:35 
14:20:00 
17:36:56 
21:21:01 
21:21:26 

Not entirely predictable, but doesn't it seem at least a little suspicous
that it seems to be on the :00 :20 and :40?  Maybe someone who knows
probability could determine whether or not this could just be totally
random because it's a small sample.

I can't for the life of me figure out what could be happening every
twenty minutes, though, and syslog doesn't reveal any clues.  There is an
hourly /etc/cron.hourly/ run-parts, but there isn't anything *in* that
directory.  None of the SMART settings correspond to twenty minutes.

So is it just my imagination?  
-- 
Adam Kessel
http://adam.rosi-kessel.org
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