[microblaze-uclinux] kernel BUG at sched.c:687!

[Brettschneider Falk <fbrettschneider@xxxxxxxxxxxxxxxxx>]

Hi,
I have 4 pthreads with SCHED_RR and different priorities and when a certain
thread is killed due a timeout, I sometimes get 
	kernel BUG at sched.c:687!
and usually just a Linux crash. This all only happens if many context
switches happen during the killing of that pthread. All threads heavily use
mutexes, semaphores and 1 of them uses poll() to wait for events of a kernel
driver.

Are you sure the microblaze's platform code for context switches is really
OK?
Otherwise I wish we used kernel 2.6.

Once I thought I worked around such scheduler problems by using pthread_join
to catch a dying thread but now I often hit a time frame where that doesn't
help either.

I've played around with some ideas for workaround for the last 5 days but
now I'm stranded again. *sigh*

Cheers
F@lk
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