i am having a repeated problem with system lockups using current CVS
with JACK running SCHED_FIFO on an SMP system, with the Planet's
2.4.21 kernel.

can anyone report that a similar configuration is working for them?
there is no way to diagnose the situation, because the kernel hangs
totally and completely, and its not possible to get the output from
either an oops or the magic-request key(s).

it seems to be less of a problem when JACK is running without
SCHED_FIFO.


A couple of month agoo I've tried to upgrade the ALSA CVS, and I remember that I got
almost exactly the same sympton that you are describing.


Sometimes when running JACK without X, the SysRQ key works, however
I did not get any useful information from it, I did not get any interactive response
from the developer list, and I've been very lasy ....


Since that I'm using a very old ALSA CVS version from May 17, that seems
to work fine with SMP.

/Benny



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