Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: 2.6.19-mm1 (md/raid1 randomly drops partitions - possible sata_uli problem) | Date | Wed, 13 Dec 2006 12:51:19 +0100 |
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On Wednesday, 13 December 2006 01:53, Neil Brown wrote: > On Tuesday December 12, rjw@sisk.pl wrote: > > > > > > So when md writes to write out the superblock, to gets EIO... Odd that > > > you aren't getting errors for normal writes. > > > > > > What devices are the md/raid1 built on? > > > > Sata drives, on sata_uli. > > > > > > > > > > I'll try to reproduce it tomorrow and collect some more information. > > > > > > Thanks. More information is definitely better than less, so send over > > > anything you can find. > > > > Okay, seems to be readily reproducible, dmesg output from the failing kernel > > attached. > > Weird. You are getting silent write errors... > > Can you write to these drives are all? e.g. > > dd if=/dev/sdb3 of=/tmp/tmp count=1 > dd if=/tmp/tmp of=/dev/sdb3 oflag=direct > > (hopefully 'direct' will cause write errors to be passed up).
Unfortunately I have no access to the machine right now.
> I really think this looks like a sata problem, not an md problem.
That's possible, but everything except for the md RAID seems to work. Strange.
I think I'll wait until the next -mm is out and check if the problem goes away. ;-)
Greetings, Rafael
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