yesterday, i backed up to gcc 2.95.3, rebuilt kernel 2.4.20 and
current ALSA CVS. i continued to get the same oops/lockups i have seen when:
* using the trident module with arecord
* loading the wavefront module and/or
i infrequently get an oops, and when i do, it points at either:
in the trident case
* smp-related code
in the wavefront case
* code within the module
i can't identify code within the module because its not possible to
finish loading the module and thus get the symbol addresses. i believe
it to be in the module because when i prevent the wavefront module
from loading (normally the first module to load), the addresses
correspond to things in the trident module (which becomes my first
loaded module instead).
so, i reverted to my "old" ALSA CVS tree, which is quite old at this
point. i recompiled it all (gcc 2.95.3), and of course, it works
fine. for me, this conclusively points to a problem in ALSA CVS that
is not related to kernel version or compiler version, but is just a
plain and simple bug. the problem is, what is it? the diffs between my
old tree and the current CVS tree are vast, and the few oops traces i
have are unrevealing in that they do not have any ALSA related calls
in them. the only way i can see for us to track this down (unless
jaroslav or takashi have a sudden inspiration) is for me to do a
binary search on CVS using a date specification until i find the first
date that causes the oops.
any other ideas?
i would strongly advise against releasing 0.9.0 final when its so
trivial to crash a system with it. and incidentally, its precisely
this kind of waste of 3 days that explains why i haven't updated from
ALSA CVS in a long time :)
--p
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