[pkg-fso-maint] Kernel and wifi
gregor herrmann
gregoa at debian.org
Sat Feb 28 19:46:13 UTC 2009
On Sat, 28 Feb 2009 16:42:43 +0100, Christian Adams wrote:
> >> If I don't start wicd at boot time the results are:
> >> * lsmod shows ar6000 loaded.
> >> * No kernel oops so far.
> >> * I can start wicd and wicd-client.py later, without getting an oops;
> >> but (as before) I have no eth0 device?!
> eth0 gets enabled via frameworkd (there is also another way via sysfs
> i currently don't remember)
Ah, I didn't know that, thanks.
> > - should not this be ath0 or (which I would prefer) wlan0?
With 2.6.24 it's eth0, and I didn't find any hints for another name.
> > - can you check if udev has assigned a persistend ifname to the
> > device,
> > please? Look at
> > /etc/udev/rules.d/70-persistent-net.rules
Yes:
# cat /etc/udev/rules.d/70-persistent-net.rules
[..]
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:12:cf:8f:08:56", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
> > - on my sid, after `ifconfig eth0 down` eth0 is no more showed by
> > ifconfig, but it is /proc/net/dev ;-)
It wasn't when I looked yesterday but it is now?!
And I can start wicd manually (I enabled wifi with the icon in
openmoko-panel-plugin before).
> > I do not know, but at least you do not get anymore oops, which is a
> > good
> > point.
Ack, but working wifi would be nice too :)
> test a)
> wicd not installed,
> usb-net connected,
> reboot
> ----
> ar6000 was loaded automatically
> no krnl-oops
> eth0 appeared after 'enabling' via frameworkd
> ifup eth0 worked
>
> no probs found
Same here, except that I have wicd installed but not started.
But I could produce an oops later by combining manual "ifconfig eth0
down", activating wicd-client, and turning wifi on/off with o-p-p.
(Don't ask me how exactly ...)
> test b)
> wicd installed and started on boot
> usb-net not connected on boot (but later to easy work)
> reboot
> ----
> ar6000 was loaded automatically
> no krnl-oops
> eth0 appeared after 'enabling' via frameworkd
> ifup eth0 worked
>
> eth0 comes up even when manually rmmod ar6000 when enabling via
> frameworkd
I tried again now with wicd activated but with the usb cable
unplugged. Result: kernel oops, no GSM, no network via usb, o-p-p
doesn't respond, ...
If I boot with the usb cable connected I can at least ssh into the
freerunner and see when the oops happens.
Removing /etc/udev/rules.d/70-persistent-net.rules doesn't help, as
expected the file gets regenerated (with the same contents).
Purging and re-installing wicd (to get a clean config) and unsetting
the wired interface in wicd + manually down/upping usb0 leads to a
working system - if I then disable wifi in o-p-p I get the oops
again.
Setting wifi to inactive in o-p-p doesn't change anything either.
/me is giving up for now and gets some food
Cheers,
gregor
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