bug in 2.6.26-rc9: sleeping function called from invalid contextat kernel/rwsem:21

[Giacomo A. Catenazzi]

Hello,

yesterday at shutdown I had a crash. Unfortunately it seems
that there was one (or more) oops missing. The bug appeared
at unmounting partition at shutdown, so there are no logs
of the previous messages.

A photo of the screen is in:
http://cateee.net/files/oops/20080709010.jpg

The oopes was in the git tree of two days ago.  I've not
seen this crash on last kernel, but OTOH I don't know if
the bug was reproducible.

ciao
	cate


PS: unfortunately I had not time for further tests and
better report, but I hope the trace is enough for such
bugs.
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