Messages in this thread |  | | Date | Mon, 29 Apr 1996 21:34:50 +0000 | From | Matthias Suencksen <> | Subject | mcdx.c (1.3.93) + Audio Player Workman = system freezes |
| |
I have expierenced a system freeze with the new mitsumi CD-ROM driver mcdx.c. I use the 1.3.93 kernel on a 486 and a FX-001D CD-ROM-Drive, mcdx as module.
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
|  |