WRITE_DMA timeouts

[Louis LeBlanc]

You can get your ATA controller by looking for "ATA" in
/var/run/dmesg.boot.

And FTR, my problem is intermittent too, but seems to lock the system up
with partition corruption when the disk is under heavy load.

Good luck.
Lou
On 11/05/04 03:26 PM, Forrest Aldrich sat at the `puter and typed:
> Sorry, I should have specified the system.  This is an older Compaq 
> AP200.  I've not idea what controller it's using on the motherboard, but 
> can try Googling to find out.   The processor is 500mhz, and has a 
> reasonable amount of RAM.
> 
> Again, this problem I'm seeing on /dev/console is intermittent.   But 
> the system otherwise appears to be peforming fine.
> 
> It has 2 10krpm 10gb drives (IDE).
> 
> Anyone else seeing this problem?
> 
> The last build of this system was Oct 24th, I can CVSup and rebuild if 
> there have been some corrections.... ?
> 
> 
> 
> Forrest
> 
> 
> 
> On 11/05/04 01:22 PM, Forrest Aldrich sat at the `puter and typed:
> > I have a test machine with FreeBSD-5.3 RC2.  It only has 2 drives (ATA). 
> >   I am seeing this error (intermittently):
> > 
> > ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=3239915
> > ad0: FAILURE - WRITE_DMA timed out
> > 
> > Though the system seems to otherwise be working just fine.
> > 
> > This used to be a Windows/XP system for a long time, and I never had any 
> > trouble.  So I wonder what the above can be indicative of (ie: bad 
> > cabling, or?).
> 
> &!#@.  I was hoping this was a thing of the past.
> 
> I've seen this a lot with 5.2.1, but I usually ended up with a siezed
> system.  I don't see how the fact that you had XP on the system could
> affect FreeBSD.
> 
> Exactly what ATA controller do you have?  I've run into trouble with the
> Intel ICH5 SATA controller in a new Dell Dimension 8300.  I received
> *lots* of suggestions that the drive was bad (as per the little sniglet
> at the bottom), but that isn't the problem - it passed every utility I
> was able to put it through.
> 
> BTW, my drive is a brand new WD 160 Gig.
> 
> After days of googling, I found only a few suggestions that the problem
> was the scheduler and/or the HT processor.  I turned HT off in the bios,
> and it still locks up - especially when shutting down.  I've put the
> hardware through dozens of checks and tests, and there are absolutely no
> problems except when running FreeBSD with the disk under load.  Even XP
> didn't lock up like this.
> 
> I've been holding this new Dell in limbo for nearly 4 months waiting for
> this exact problem to get fixed.  I *really* hate to do it, but I'm
> going to have to consider Linux if this doesn't get resolved in 5.3.
> And it looks like it isn't.  I know I could get the code and work on it
> myself, but I'm not a driver engineer, and as much as I'd like to, I
> don't have the time to learn it right now.
> 
> Good luck.
> Lou
> -- 
> Louis LeBlanc               FreeBSD at keyslapper.org
> Fully Funded Hobbyist, KeySlapper Extrordinaire :)
> http://www.keyslapper.org                     Ô¿Ô¬
> 
> Default, n.:
>   The hardware's, of course.
> 
> 
> 
> 
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-- 
Louis LeBlanc               FreeBSD at keyslapper.org
Fully Funded Hobbyist, KeySlapper Extrordinaire :)
http://www.keyslapper.org                     Ô¿Ô¬

Arnold's Addendum:
  Everything else causes cancer in rats.