Problem: the system freezes hard, with caps lock flashing, and cannot be recovered, making a power cycle necessary.
This happens randomly, sometimes minutes after boot-up, sometimes after many hours.
System: HP tx2500z Tablet using x86_64 Ubuntu Intrepid 8.10, all packages up to date as of Dec 8 2008
(active repos: intrepid/-updates/-security main restricted universe multiverse)
This problem ONLY occurs when the wireless switch is enabled (I have confirmed this with weeks of testing)
Kernel ver: 2.6.27-9-generic
Broadcom driver version: linux-restricted-modules-2.6.27-9-generic 2.6.27-9.13
(broadcom driver "wl" is in restricted modules package)
Relevant hardware: Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01)
The exact same behaviour occurs with the previous kernel version (2.6.27-7-generic and corresponding restricted module package)
I believe that this problem has only happened when wireless signal strength is low (<40%).
dmesg, lspci -vvnn, and /proc/interrupts included in attached file.
Bug reported: https://bugs.launchpad.net/bugs/304926
Bookmarks