Red Hat Bugzilla – Bug 432266
rt2500pci throws ^@ to the console
Last modified: 2008-03-12 17:33:00 EDT
Description of problem:
When the wlan0 is started (doesn't matter if through NetworkManager or ifconfig
wlan0 up) it throws to the console ^@ characters approx. every second.
Version-Release number of selected component (if applicable):
kernel-184.108.40.206-115.fc8 (AFAIK all kernels in F 8)
Steps to Reproduce:
1. start wlan0 interface
No characters to stdout as these blocks repeated key presses when key is held
I upgraded to Alpha release and it behaves the same way.
Created attachment 294502 [details]
Created attachment 294503 [details]
Copying Ivo in case he has seen any similar wierdness...
Seems very much related to #43267, in fact it sounds more like that bug is a
direct cause for the console bug.
But no I haven't seen this particular bug before (In opposite to #43267 which
sounds all too familiar if this fedora kernel indeed contains rt2x00 2.1.0).
Still persist in kernel 2.6.25-0.64.rc2.git5.fc9.
I have no real idea what can cause this, it sounds like memory corruption but
then you would also experience a crash.
It might have been caused by a kernel thread that hangs (fixed in rt2x00 2.1.3),
but I am not really convinced that could cause the above mentioned bug... :S
Any idea how can I debug it or how to find more info?
Vaclav, can you recreate the issue with the current rawhide kernels? There
have been a number of updates over the last month...
Hi John, unfortunately the problem is still present in the latest rawhide kernel
The latest koji kernel (with included rt2x00 2.1.4) 2.6.25-0.113.rc5.git2.fc9
did the trick and there are no such characters send to console. Thanks a lot Ivo.