(cc linux-wireless) On Mon, 14 Jul 2008 13:27:51 +0100 (BST) Vivek Dasmohapatra <vivek@xxxxxxxx> wrote: > Hi: I have a thinkpad t43p with an ipw2200 driven piece of hardware in it. > > 04:02.0 Network controller [0280]: > Intel Corporation PRO/Wireless 2915ABG Network Connection [8086:4224] (rev 05) > Kernel driver in use: ipw2200 > Kernel modules: ipw2200 > > >From time to time, the firmware flakes out, and I get messages like this: > [ I'm not sure which version of the firmware I have, I can't see anything > obvious in dmesg when the ipw2200 module loads: I have files like > ipw-2.4-bss.fw in /lib/firmware if that helps ] > > Jul 14 03:42:25 neko kernel: > ipw2200: Failed to send SCAN_ABORT: Command timed out. > Jul 14 03:42:26 neko kernel: > ipw2200: Failed to send CARD_DISABLE: Command timed out. > Jul 14 03:42:32 neko kernel: > ipw2200: Failed to send SCAN_ABORT: Command timed out. > Jul 14 03:42:33 neko kernel: > ipw2200: Failed to send CARD_DISABLE: Command timed out. > Jul 14 03:42:39 neko kernel: > ipw2200: Failed to send SCAN_ABORT: Command timed out. > > repeated again and again. > > There's usually a "firmware error detected, restarting" message buried > somewhere in the logs before that happens. > > Under kernel 2.6.16, I was able to fix this as follows: > > echo -n 3 > /sys/class/net/$IFACE/device/power/state > sleep 1 > echo -n 0 > /sys/class/net/$IFACE/device/power/state > > ( removing and reloading the module has no effect here, under > either kernel 2.6.16 or 2.6.24: taking the interface down and > bringing it up again is likewise ineffective ) > > However, I note that under 2.6.24 said /sys interface is no > longer present, so once the firmware dies, I am forced to either > hunt down a network cable with something useful on the other end, > or live without networking, or reboot. > > Is there a new way to achieve the same effect in 2.6.24? If there's not, > is there likely to be in the future? Or should I just revert to 2.6.16 > until such time as I replace my laptop and (hopefully) don't have to > struggle with the intel wifi hardware any more? > > The firmware bug is covered here: > http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=875 > if that's helpful/relevant. > > [ CCd to netdev as I was told it would be of interest there too, > apologies if this is not the case ] > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
