iwn driver issue
David Wolfskill
david at catwhisker.org
Fri Jun 13 19:51:08 UTC 2014
On Fri, Jun 13, 2014 at 09:36:35PM +0200, Edward Tomasz Napiera??a wrote:
> ...
> > I normally don't spend a huge amount of time in head -- enough to build
> > it & do a quick smoke-test. So it's certainly possible that it merits
> > further exploration. And I'm willing experiment, but I cannot test it
> > while I'm at work (as I don't use the wireless NIC at work -- I use it
> > almost exclusively while I'm at home (and other places), though).
>
> It would be great if you could help me with this. Basically you need
> to enable crashdumps, as described below, and obtain a backtrace.
>
> http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html
I have had crash dumps on panics running head (slice 4 of the boot
device, in my case) in the past, so that process works. I just didn't
get a dump this morning. :-(
d130(9.3)[1] grep dump /S4/etc/rc.conf
dumpdev="AUTO"
d130(9.3)[2]
> Just for the record, the easiest way to make iwn firmware panic
> is to enter ddb (ctrl-alt-esc), wait five seconds and exit it
> ("c<enter>").
Does that process yield useful information? (That is, is that process
sufficiently similar to a sequence of events that occurs in the real
world that the resulting information may be used to figure out how to
make the code avoid misbehavior?)
If so, I can try that soonish (e.g., en route home today, once I've
boarded the train -- vs. while I'm still on my bike :-}).
Peace,
david
--
David H. Wolfskill david at catwhisker.org
Taliban: Evil cowards with guns afraid of truth from a 14-year old girl.
See http://www.catwhisker.org/~david/publickey.gpg for my public key.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 949 bytes
Desc: not available
URL: <http://lists.freebsd.org/pipermail/freebsd-current/attachments/20140613/56786ddb/attachment.sig>
More information about the freebsd-current
mailing list