The fact that I saw this after the upgrade seems to have been incidental. I've now reproduced the same problem on 2.6.27-9.19 if I use the same wifi network.
I don't think this is the same as bug 276990 because 1) this isn't an 802.11n network, and 2) it clearly is not fixed in 2.6.27-10.20. I'm attaching complete output from "sudo iwlist wlan0 scan" ** Summary changed: - [regression in -proposed?] Panics while using iwlagn wifi + Panics while using iwlagn wifi on some networks ** Description changed: - After updating to 2.6.27-10.20, I've been experiencing occasional kernel - panics (flashing caps lock) while using wifi. I let the system idle on - the console for some time and there were no panics, but it seems to - happen reliably if I use a web browser for a short time. + While away from home, I've been experiencing occasional kernel panics + (flashing caps lock) while using wifi. It seems to be related to which + wifi network I associate with. This one triggers the panics: - I rebooted back into 2.6.27-9.19 and haven't had a problem since. + Cell 10 - Address: 00:1F:F3:F8:9D:C7 + ESSID:"Canonical" + Mode:Master + Channel:11 + Frequency:2.462 GHz (Channel 11) + Quality=49/100 Signal level:-79 dBm Noise level=-127 dBm + Encryption key:on + IE: WPA Version 1 + Group Cipher : TKIP + Pairwise Ciphers (1) : TKIP + Authentication Suites (1) : PSK + IE: IEEE 802.11i/WPA2 Version 1 + Group Cipher : TKIP + Pairwise Ciphers (2) : CCMP TKIP + Authentication Suites (1) : PSK + IE: Unknown: 2D1A2C0217FFFF000000000000000000000000000000000000000000 + Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s + 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s + 48 Mb/s; 54 Mb/s + Extra:tsf=00000031d1657237 + Extra: Last beacon: 2416ms ago + + while this one does not: + + Cell 11 - Address: 00:03:52:A4:43:B0 + ESSID:"Domain Hotel" + Mode:Master + Channel:11 + Frequency:2.462 GHz (Channel 11) + Quality=79/100 Signal level:-55 dBm Noise level=-127 dBm + Encryption key:off + Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s + 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s + 48 Mb/s; 54 Mb/s + Extra:tsf=0000012c45ba0181 + Extra: Last beacon: 2396ms ago + ProblemType: Bug Architecture: amd64 DistroRelease: Ubuntu 8.10 Package: linux-image-2.6.27-9-generic 2.6.27-9.19 ProcCmdLine: root=UUID=305dde78-d20a-4248-aaf4-09447b7c5791 ro quiet splash ProcEnviron: LC_COLLATE=C PATH=/home/username/bin:/usr/lib/ccache:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/sbin:/usr/sbin:/usr/games:/usr/lib/surfraw LANG=en_US.UTF-8 SHELL=/bin/zsh ProcVersionSignature: Ubuntu 2.6.27-9.19-generic SourcePackage: linux ** Attachment added: "iwlist wlan0 scan" http://launchpadlibrarian.net/20283852/scan.txt -- Panics while using iwlagn wifi on some networks https://bugs.launchpad.net/bugs/306022 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
