BETA2 panic

Joel Dahl joel at vnode.se
Tue Sep 6 20:42:49 UTC 2011


On 05-09-2011  9:02, Bernhard Schmidt wrote:
> On Mon, Sep 5, 2011 at 08:24, Joel Dahl <joel at vnode.se> wrote:
> > On 05-09-2011  5:09, Adrian Chadd wrote:
> >> On 5 September 2011 01:04, Joel Dahl <joel at vnode.se> wrote:
> >> > Hi,
> >> >
> >> > I upgraded my laptop from BETA1 to rev. 225367 today, and now my laptop panics just a few minutes after booting. This is 100% reproducible, it panics every time.
> >> >
> >> > I've got a pic with the backtrace here: http://www.vnode.se/sc/panic_20110904.jpg
> >>
> >> Hi,
> >>
> >> There weren't many commits between BETA1 and -HEAD in the wireless
> >> area; would you please do a binary search of the kernel revisions (no
> >> need to do full buildworlds) to find which commit broke it?
> >
> > Yes, I'll do that tonight.
> 
> While doing so, can you enable at least some debugging?
> wlandebug +state
> or even better
> wlandebug 0xffffffff
> 
> It smells like that something is poking the SW bmiss handler while not
> in RUN state and therefore you're hitting a KASSERT(). Question is if
> the bmiss timer isn't stopped/drained somewhere or if there is too
> excessive call.

Exactly what in the wlandebug output are you looking for?  I've posted a pic
at http://www.vnode.se/sc/panic_20110906.jpg showing what it looks like right
before the panic.  This is with "wlandebug 0xffffffff".

I've also installed kernels all the way back to revision 222980, but they all
panic, which I think is somewhat odd.

-- 
Joel


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