[pkg-fso-maint] Kernel and wifi
Christian Adams
morlac at morlac.de
Tue Mar 3 08:46:17 UTC 2009
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moinmoin,
Am 02.03.2009 um 20:32 schrieb gregor herrmann:
[..]
> 2) boot with wicd disabled in runlevel 2
> As we already know :) there's no oops in this case. Status after
> everything has come up and before I did anything (except entering the
> PIN):
> * ifconfig and iwconfig don't know about eth0, o-p-p has the "wifi
> disabled" icon.
> * No eth0 in /proc/net/dev.
> * ar6000 loaded.
>
> Now let's try to produce a kernel oops:
> * Turn on wifi (o-p-p): eth0 shows up in /proc/net/dev and in
> i(w|f)config output. No oops.
> * /etc/init.d/wicd start: no changes, no oops.
> * Start wicd-client: no changes, no oops.
> * Open the wicd-client GUI; it scans for wireless networks; still no
> changes/problems.
> * Connect to a (WPA encrypted) network via the GUI: wpa_supplicant
> and dhclient get called, both succeed, no problems. dmesg output:
>
> [ 584.355000] ar6000_ioctl_giwscan(): data length 0
> [ 587.245000] AR6000 disconnected
> [ 587.630000] channel hint set to 2462
> [ 590.105000] eth0: no IPv6 routers present
> [ 592.135000] channel hint set to 2462
> [ 592.150000] AR6000 disconnected
> [ 592.225000] AR6000 connected event on freq 2462 with bssid
> 00:18:84:29:9a:57 listenInterval=100, beaconInterval = 100,
> beaconIeLen = 26 assocReqLen=60 assocRespLen =59
> [ 592.230000] Network: Infrastructure
>
> * Turn off wifi (o-p-p): Here we are: the kernel oopses; last lines
> of dmesg output attached.
i think i know now why i don't get the oops here:
in o-p-p you have options for pre/post enable/disable - and for wifi
i use the following:
* post-enable: sleep 2 && iwlist scan && ifup eth0
* pre-disable: ifdown eth0
@mickey:
whouldn't it be an idea that frameworkd ensures the interface is down
(via 'ifdown eth0') before 'disabling' it?
cheesr,
christian (morlac) adams
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