reiser4 in 2.6.14 - lockups with mmapped files

[Fionn Behrens <fionn@spamfilter.de>]

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Hi all,

you may remember my recent "story from userland". Stubborn as I am, I
decided to give 2.6.14 another shot for it. Following a recommendation
found in the above mentioned thread, I tried the patch from 
http://iphitus.loudas.com/archck.php this time, which includes the
latest reiser4 from mm.

Unfortunately I once more hit the wall and was forced to go back to
2.6.11 (including another --build-fs run to regain compatibility with
the old but working reiser4 drivers). I wish there was a mount option to
exclude the new extensions so I can test new kernels without losing half
a day for fscking when things get whacky.

This time suspend seemingly works without reiser4 processes freaking
out.
But now it looks like any time any mmapped file is synced to a reiser4
partition, the process who tries to do that will freeze forever. In
addition, any process trying to access the open mmapped file afterwards
will freeze forever as well. I created a screenshot of an strace running
while this happened. Find it at http://fionn.de/reiser4again.jpg

Of course, tests on files on other file systems than reiser4 did not
show this behaviour. I tested on two different Systems, one Pentium M
and one Athlon, same result.

I wish I knew what I am doing wrong. I'd bet you guys all have reiser4
up and running with 2.6.14 and no problems at all. Or what? 

best regards,
		Fionn
-- 
 Taking away civil rights to protect a free democracy is like taking off
 the tires of a car to protect it from flats. 

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