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SubjectRe: 2.4.22-pre3 and reiserfs boot problem

On Wed, Jul 09, 2003 at 09:36:04AM -0400, Chris Mason wrote:
> > > Is reiserfs on your root drive? If not can you please boot into single
> > > user mode, enable sysrq, try the mount again and get the decoded output
> > > from sysrq-p and sysrq-t if it hangs.
> > I tried to produce some useful output but failed. Additionals I found:
> > - pre3-ac1 has the same problem
> > - the box _hangs_ in fact, no sysrq is working.
> > (you need hw-reset to revive the box)

This complete hang is _very_ suspicious. Usually you cannot achieve such
results without touching hardware.

> > - I can see no disk activity on the 3ware RAID in question

After the lockup? This is kind of expected ;)

> > - It always shows up, completely reproducable
> > - It shows during boot and during single- or multiuser (mount from console)
> Step one is to figure out if the problem is reiserfs or 3ware. Instead
> of mounting the filesystem, run debugreiserfs -d /dev/xxxx > /dev/null
> and see if you still hang.
> This will read the FS metadata and should generate enough io to trigger
> the hang if it is a 3ware problem.

Or if this one suceeds, then may be reiserfsck --check /dev/xxxx to get
journal replayed. This is in case access pattern matters.
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