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Re: iwlagn: Microcode SW error detected.

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On Wed, 2009-02-11 at 15:09 -0800, Jan Schneider wrote:
> Zitat von Jan Schneider <jan@xxxxxxxxx>:
> 
> > Zitat von reinette chatre <reinette.chatre@xxxxxxxxx>:
> >
> >> On Tue, 2009-02-10 at 03:19 -0800, Jan Schneider wrote:
> >>> Zitat von Jan Schneider <jan@xxxxxxxxx>:
> >>>
> >>>> Zitat von Jan Schneider <jan@xxxxxxxxx>:
> >>>>
> >>>>> Zitat von Gábor Stefanik <netrolller.3d@xxxxxxxxx>:
> >>>>>
> >>>>>> On Sun, Feb 8, 2009 at 7:23 PM, Jan Schneider <jan@xxxxxxxxx> wrote:
> >>>>>>> Zitat von reinette chatre <reinette.chatre@xxxxxxxxx>:
> >>>>>>>
> >>>>>>>> On Fri, 2009-02-06 at 14:31 -0800, Jan Schneider wrote:
> >>>>>>>>>
> >>>>>>>>> I've seen in a post from January that someone already had
> >>>>>>>>> this problem
> >>>>>>>>> but couldn't reproduce it.
> >>>>>>>>> I can't reliably reproduce, but I see this more often than I like.
> >>>>>>>>> When this happens, it usually doesn't help to reload the kernel
> >>>>>>>>> module. Sometimes it helps to use the rfkill switch though.
> >>>>>>>>>
> >>>>>>>>> Here's a log with debug=0x43fff:
> >>>>>>>>
> >>>>>>>> It does not seem as though your driver is compiled with debug support.
> >>>>>>>> You can confirm that by looking at the version number of the driver
> >>>>>>>> printed when it loads ... it should have a "d" in it like "1.2.26kds".
> >>>>>>>> Could you please recompile the driver with debug support
> >>>>>>>> (IWLWIFI_DEBUG)
> >>>>>>>> and rerun your test?  This will provide us with a complete
> >>>>>>>> event log of
> >>>>>>>> the uCode error.
> >>>>>>>
> >>>>>>> Enabling debug didn't help:
> >>>>>>>
> >>>>>>> Feb  7 00:04:40 tank kernel: [ 2769.084395] iwlagn: Intel(R)
> >>>>>>> Wireless WiFi
> >>>>>>> Link
> >>>>>>> AGN driver for Linux, 1.3.27kds
> >>>>>>>
> >>>>>>>
> >>>>>>> /etc/modprobe.d/iwlagn:
> >>>>>>>
> >>>>>>> options iwlagn debug=0x43fff
> >>>>>>>
> >>>>>>>
> >>>>>>> I still get:
> >>>>>>>
> >>>>>>> Feb  8 18:40:53 tank kernel: [77584.979829] iwlagn
> >>>>>>> 0000:0c:00.0: Microcode
> >>>>>>> SW er
> >>>>>>> ror detected.  Restarting 0x2000000.
> >>>>>>> Feb  8 18:40:53 tank kernel: [77585.029747] Registered led device:
> >>>>>>> iwl-phy0::rad
> >>>>>>> io
> >>>>>>> Feb  8 18:40:53 tank kernel: [77585.030765] Registered led device:
> >>>>>>> iwl-phy0::ass
> >>>>>>> oc
> >>>>>>> Feb  8 18:40:53 tank kernel: [77585.031602] Registered led device:
> >>>>>>> iwl-phy0::RX
> >>>>>>> Feb  8 18:40:53 tank kernel: [77585.032467] Registered led device:
> >>>>>>> iwl-phy0::TX
> >>>>>>
> >>>>>> No - enable IWLWIFI_DEBUG in your kernel config, then rebuild the
> >>>>>> kernel (or at least the iwlwifi modules).
> >>>>>
> >>>>> That's what I did, see the "d" in "1.2.26kds" above.
> >>>>
> >>>> Eh, that was the wrong citation of course. But it's still a "d" in
> >>>> "1.3.27kds".
> >>>
> >>> Anything else I can try to provide more information?
> >>
> >> Which hardware are you running? If it is a member of the 5k series then
> >> you need to use the debug50 parameter.
> >
> > Yeah, it is, a 5300. I'll try that and get back to you.
> 
> Now, this was was fun. I was just reading this mailing list, wondering
> why the driver still didn't crashed. When I left this mail folder, it
> happened. :-) Did anybody sneak some semantic analysis into the latest
> code? ;-) And how it crashed! I had to reboot and it keeps crashing
> now after a few seconds activity at most.
> 
> Anyway, here is the log, I hope the attachment makes it to the list.
> If you need more, I have more, but I figured this should contain all
> important information.

Thank you very much for this log. Do you perhaps have a log that shows a
bit what is going on _before_ the SYSASSERT occurs? 

I passed this log on to our hardware folks for some information. At this
time, please consider opening a bug in
http://www.intellinuxwireless.org/bugzilla/ with your debug logs.

Thank you

Reinette

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