Red Hat Bugzilla – Bug 702472
iwlagn frequently gets stuck
Last modified: 2011-05-25 08:06:21 EDT
Description of problem:
I have a Lenovo X200 with an Intel 5300 wifi chip. When talking on my WPA-secured network (Linksys WRT310N AP), it will work normally for an unpredictable amount of time (a few seconds to a few hours), then get "stuck", such that network traffic fails and existing connections get dropped.
Unfortunately, there's not much info in /var/log/messages to make it very clear what's going on. I'm happy to provide diagnostic info. Also, there is not an obvious event that precipitates the problem: sometimes it happens after a few seconds, other times after hours, with no clear correlation to network activity.
When this hang happens, I can usually kick things into working for another while by running "rmmod iwlagn && modprobe iwlagn", but the laptop will crash after a few of these forced unload/reload cycles.
Version-Release number of selected component (if applicable):
These 5xxx devices have troubles with 11n. However situation is somehow now improved in 2.6.39. As you know we are trying to backport some fixes to older kernel that could possibly help to. Also you probably know about workaround to these problems in form of 11n_disable=1 module option.
*** This bug has been marked as a duplicate of bug 648732 ***