Red Hat Bugzilla – Bug 249893
iwl3945 hangs system when trying to unload kernel driver module
Last modified: 2007-11-30 17:12:11 EST
Description of problem:
Since my wireless connection is not working properly, I decided to unload the
driver using "modprobe -vr iwl3945". The system started to issue console
messages (since the driver module was being used) about waiting for the driver
to be freed. These messages kept popping up at every terminal and system load
went up to higher than 7 (on a 1-CPU laptop). At this point I tried to
run "/etc/init.d/network stop" and that got hung too. Even after manually
killing some processes, the runaway system load continued to escalate. The
only choice was to reboot.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Try to unload (using modprobe) a wireless kernel driver module when its
System goes runaway with escalating load and reboot is the only way out.
If a kernel module is being used, "modprobe -r" should simply return after
reporting failure to unload the module. The system should not go runaway
Please try this kernel:
Does this exhibit the same problem?
With kernel 126.96.36.199-41.fc7, things went smoothly ->
$ modprobe -vr iwl3945