Re: iwlagn: associating with AP causes kernel hiccup

From: Richard Scherping
Date: Fri Oct 17 2008 - 11:27:58 EST

>>>> When I associate with an AP, Linux 2.6.27 seems to "hang" for a few
>>>> seconds. During that time, all sound stops playing and keyboard and
>>>> mouse input is impossible.
>> I'm using Mandriva 2009.0 x86_64 with wpa_supplicant and Mandriva's
>> wireless network configuration tool (drakroam).
>> Actually I just found out that running # ifconfig wlan0 down
>> is enough to trigger the sound and mouse hanging for a few seconds.
> And shortly after I wrote that, while associating while getting an IP
> with dhclient when associating with a WPA encrypted AP, I got this
> backtrace in my logs:
> [...]

I have a similar problem here. No crash up to now, but the very same "hang" for a few seconds on "ifconfig wlan0 down". Interestingly this does only happen after a normal boot - once I did a suspend and resume (S3), there is no hang anymore.

Hardware: Thinkpad T61p with Intel 4965 agn
Software: Debian Lenny x86_64 with vanilla 2.6.27 kernel

I remember having the same "hang" with older kernels, too.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at