Re: possible recursive locking detected - while running fs operations in loops - 2.6.18-rc2-git5

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On Jul 26, 2006  00:16 +0200, Jesper Juhl wrote:
> What I did to provoke it was to run 6 different xterms (with a bash
> shell) with the following loops in them in a test directory that was
> initially empty :
> 
> xterm1:   while true; do mkdir a; done
> xterm2:   while true; do rmdir a; done
> xterm3:   while true; do touch a/foo; done
> xterm4:   while true; do find .; done
> xterm5:   while true; do sync; sleep 1; done
> xterm6:   while true; do rm -r a; done

See racer test at ftp.lustre.org/pub/benchmarks/racer-lustre.tar.gz

It does the above, but a bunch more things and is a truly pathalogical
test script that does lots of "stupid user tricks", unlike normal tests
which are only doing operations that expect to be successful.

PS - during the racer.sh test run "rm" is known to segfault after hitting
     an internal assertion, nobody is sure why.
PPS- I don't know who wrote this program, it was originally posted by
     someone not the author to linux-fsdevel or something.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

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