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Description of problem: Just installed Fedora 15 Final TC1 on a second hdd: kernel crash and no working wireless connection Version-Release number of selected component (if applicable): uname -r 2.6.38.4-20.fc15.x86_64 How reproducible: every time Steps to Reproduce: [tux@localhost ~]$ su -c "service NetworkManager stop" Password: Stopping NetworkManager (via systemctl): [ OK ] [tux@localhost ~]$ su - Password: [root@localhost ~]# ifconfig wlan0 up [root@localhost ~]# iwconfig wlan0 mode ad-hoc [root@localhost ~]# iwconfig wlan0 essid some_network wait 10 seconds -->crash! So what should I do?
Created attachment 497396 [details] screenshot from the crash, backtrace without debuginfo
Patch is available for that problem (see upstream kernel bug), I'll post it soon. You can use hardware scan as workaround: modprobe -r iwl3945 modprobe iwl3945 disable_hw_scan=0
http://koji.fedoraproject.org/koji/buildinfo?buildID=244715 kernel include fix for this bug ( http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commit;h=23181925de608dea571fb5aba4a34900df54b973 )
OK wlan is working again, thanks. I can get an working ad-hoc connection (but not via NetworkManager at the moment). You first link points to an fc14 kernel, I've installed 2.6.38.7-28.rc1.fc15.x86_64 from http://koji.fedoraproject.org/koji/buildinfo?buildID=244664 bug fixed
(In reply to comment #4) > OK wlan is working again, thanks. I can get an working ad-hoc connection (but > not via NetworkManager at the moment). There is know issue with NetworkManager and nl80211 https://bugzilla.redhat.com/show_bug.cgi?id=699203