Red Hat Bugzilla – Bug 113808
modutils and cat /proc/modules deadlock (I think)
Last modified: 2007-11-30 17:10:35 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040115
Description of problem:
I have these process:
[root@monster root]# ps --width=2000 -f -p 9302,9303,9301,9368,17188,3
UID PID PPID C STIME TTY TIME CMD
root 3 1 0 Jan17 ? 00:00:00 [events/0]
root 9301 1 0 00:36 ? 00:00:00 rmmod parport_pc parport
root 9302 3 0 00:36 ? 00:00:00 [events/0]
root 9303 9302 0 00:36 ? 00:00:00 /sbin/modprobe -q --
root 9368 9314 0 00:37 pts/3 00:00:00 lsmod
root 17188 17138 0 08:35 pts/6 00:00:00 cat /proc/modules
9301,9303, and 17188 are all hung. rmmod has been hung for at least 8
I believe that what happened is that I ran rmmod and the system ran
modprobe at the same time, and they are deadlocked. I'm not sure of
I'm going to reboot now, and this problem may never show itself again.
But, I thought I should report it when it did.
Version-Release number of selected component (if applicable):
This was probably fixed a long time ago.