Another debug run with the arla lockup problem

[Magnus Ahltorp]

> As indicated in the debug trace
> (http://www.umr.edu/~nneul/debug-traces/arla-webindex-19990217.gz), arla
> seems to get into a state where it spins doing getnode/installnode with no
> xfs logging activity. That is around line 1000 of the log. It looks like the
> last xfs activity taking place is an xfs_node_find.

Are you sure that klogd is still alive? I have had problems with klogd
dying when heavily loaded. Arla's debug output suggests that there is
an xfs talking to it.

> Oh, BTW, something else - on this machine if I leave it running, at some
> point it seems to get into a state where it spins doing clear_all_childs.
> (Can't get into it to get the debug output and console spinning too fast to
> get any more details.)

Does this spinning never stop? If it stops, it's probably just normal
invalidation.

/Magnus
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