It can be reproduced by pressing "play" in the CD-audio-player
"workman" and then "stop". It's interesting that the crash only happens
when i use the cd-player "workman", not when i use "workbone".
I traced the bug down to the IOCTL CDROM_STOP, the drivers goes
then through the following functions:
mcdx_stop -> mcdx_talk -> mcdx_getval -> mcdx_delay ,
and here the kernel (only with "workman") halts near line 870:
while (current->time) { interruptible_sleep_on ... }
After removing the while around the "interruptible_sleep_on"
it worked better.
But as I am no kernel hacker, I don`t know what i have _really_ done :-)
Matthias Suencksen --- msuencks@techfak.uni-bielefeld.de