justin at cs.duke.edu
Mon Sep 10 13:07:55 EDT 2001
> > > We are currently running 2.2.19-6.2.1 kernel as it came from Red Hat.
> > There are some known problems with the ServerWorks LE chipset that
> > cause filesystem corruption on some recent kernels. The bottom line is
> > that it appears to be a BIOS bug, and that disabling DMA on your IDE
> > chains will prevent that. A chain of BIOS updates may or may not solve
> > your problem, but I haven't seen anything too encouraging yet. A detailed
> > bug report can be found at
> > http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=38429
> > Good luck.
> > -jdm
> The bug report in question is describing bugs in the 2.4 kernel.
The next-to-last comment describes your problem with a Tyan board that
uses the same chipset, running the 2.2.19 kernel from RedHat.
> Has anyone seen the problems like that in 2.2 kernels besides me?--
> Also, turning DMA off is a non-starter for us...we depend on DMA I/O
> for the application we are running.
> The vendor has tried three types of hard disk on the nodes so far...
> Maxtor, Seagate (which didn't show hda errors but did
> show massive filesystem corruption as described in the bug report above)
> and now Western Digital, where there are filesystem
> errors that hang the machine but the system usually comes back fine
> after reboot and fsck.
> They are now trying to go to IBM drives (which are working fine
> as data drives on these systems, albeit on the secondary IDE bus.)
Short of getting PCI IDE controllers I'm not quite sure what to
suggest. I'm almost positive that it really is a BIOS problem you're
running into, and that's why your problem is hard-drive independent.
 Positive (adj): Mistaken at the top of one's voice.
- "The Devil's Dictionary", Ambrose Bierce
Department of Computer Science, Duke University, Durham, NC 27708-0129
Email: justin at cs.duke.edu
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