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SubjectRe: 2.4.23 + Preempt, JFS Corruption.
On Tue, 2003-12-09 at 15:34, Joshua Schmidlkofer wrote:
> Howdy,
> We are migrating from ext3 to jfs and had a weird error. We have a
> dual pentium III 1.4 ghz system. We have 4GB of ram, and a Mylex
> AcceleRAID 170 [DAC960] controller. Intel pro/100 nics, nothing else too
> special. The motherboard chipset is ServerWorks. We added a 40GB ide
> drive to the onboard controller. It has jfs on it, and we are using
> this for the migration. We have been backing up to it for a few days,
> and it went read-only on us.
> I have dtree page corrupt errors, but no hardware errors. jfs fsck
> errors out as well.

jfs_fsck reports the errors, but is running read-only. Did you run it
with "-n"? In read-write mode, it should "fix" the problem (by removing
the corrupt directory and placing its contents in lost+found).

I've seen a few scattered reports of corrupted directories lately, so
there may be a race in the JFS code that I haven't found yet. I'd be
interested if anyone has found a reproducible way of causing any JFS

David Kleikamp
IBM Linux Technology Center

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