[reiser4 errors] does this ever happen? / too many iterations

[Martin Wilck <martin.wilck@fujitsu-siemens.com>]

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Hi list,

I got the following errors during a file system benchmark on an x86_64 
system yesterday. I was running 2.6.9-rc1-mm2 with WLI's fix 
http://www.uwsg.indiana.edu/hypermail/linux/kernel/0409.0/0027.html
applied.

First I get a bunch of these:

reiser4[sync(32230)]:
capture_reiser4_inodes (reiser4/page_cache.c:611)[vs-1689]:
      WARNING: does this ever happen? nr_to_write = -1558

Later it gets even worse:

reiser4[bonnie++(32563)]:
traverse_tree (reiser4/search.c:755)[nikita-1481]:
     WARNING: Too many iterations: 128

The # of iterations then goes all the way up to 1073741824,
the bonnie++ process hangs in an infinite loop, and the file system is 
no longer accessible. This happens during the bonnie++ "create many 
small files in random order" benchmark.

The "does this ever happen?" messages happen earlier.

I am attaching some debug info I gathered. I also have "debugfs.reiser4 
-t" output, but it's too large to send to this list I guess (3MB).

Answers please cc'd to my email address.

Best regards
Martin

-- 
Martin Wilck                Phone: +49 5251 8 15113
Fujitsu Siemens Computers   Fax:   +49 5251 8 20409
Heinz-Nixdorf-Ring 1        mailto:Martin.Wilck@Fujitsu-Siemens.com
D-33106 Paderborn           http://www.fujitsu-siemens.com/primergy


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