Bug 9072

Summary: rmmod zd1211rw causes assertion failure in net/sched/sch_generic.c
Product: Drivers Reporter: Keith Chew (keith.chew)
Component: network-wirelessAssignee: drivers_network-wireless (drivers_network-wireless)
Status: REJECTED UNREPRODUCIBLE    
Severity: high CC: bunk, dsd, kune
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.16.20.1 Subsystem:
Regression: --- Bisected commit-id:

Description Keith Chew 2007-09-25 14:21:33 UTC 
Distribution: FC6
Hardware Environment: x86 uniprocessor Pentium 1.8GHz
Software Environment: Standard Distro
Problem Description:

During a stress test on the wireless network, a "modprobe -r zd1211" command throws this exception:

KERNEL: assertion (!timer_pending(&dev->watchdog_timer)) failed at net/sched/sch_generic.c (608)

and after that, a modprobe will just hang.

We have seen another user reporting this problem, but no resolution was reported. 

Steps to reproduce:

Very hard to reproduce. But can be done with a ping flood to the network, and waiting for a 6-8 hours before calling a "modprobe -r".
Comment 1 John W. Linville 2007-11-13 12:25:58 UTC 
Is this reproduceable with a modern kernel?
Comment 2 Keith Chew 2007-11-13 12:48:08 UTC 
This is not reproduceable with the latest kernel. Please close this bug entry.