Re: uhci on cardbus error blocks shutdown

[Iain Hibbert <plunky%rya-online.net@localhost>]

On Wed, 25 Jun 2008, David Young wrote:

> On Wed, Jun 25, 2008 at 08:16:26PM +0100, Iain Hibbert wrote:
> > On Tue, 24 Jun 2008, David Young wrote:
> >
> > > I can only conclude that the breakpoint is in softnet.  Get a backtrace
> > > on the reboot process.
> >
> > Hm, my fu seems lacking. All I can get from that is:
> >
> > db{0}> ps/l
> >  PID         LID S     FLAGS       STRUCT LWP *               NAME WAIT
> >  525           1 7         4           cbf90840             reboot
> > [...]
> >
> > db{0}> bt/al cbf90840
> > trace: pid 525 lid 1 at 0xc134ef80
> > fatal page fault in supervisor mode
> > trap type 6 code 0 eip c0577b91 cs 8 eflags 10246 cr2 b ilevel 8
> > kernel: supervisor trap page fault, code=0
> > Faulted in DDB; continuing...
> >
> > (and same for "bt/tl 0t525")
> >
> > is there any other way? (I'm not big on ddb :)
>
> I don't know what to make of it.  ddb is broken?  The reboot process
> has overrun its kernel stack space?

I'm trying with sources of varying age to see if I can pin the trouble on
any particular changes..

iain