panic: assertion _tp->tt_msg->tt_cpuid == mycpuid

[Francois Tigeot]

On Fri, May 22, 2009 at 07:39:50PM +0800, Sepherosa Ziehau wrote:
> On Fri, May 22, 2009 at 4:14 PM, Sepherosa Ziehau <sepherosa at gmail.com> wrote:
> > On Fri, May 22, 2009 at 2:56 PM, Francois Tigeot <ftigeot at wolfpond.org> wrote:
> >> On Fri, May 22, 2009 at 09:23:15AM +0800, Sepherosa Ziehau wrote:
> >>> On Fri, May 22, 2009 at 2:48 AM, Francois Tigeot <ftigeot at wolfpond.org> wrote:
> >>> >
> >>> > Pushing the ATX power button to shut down the machine results in the following
> >>> > panic:
> >>> >
> >>> > panic: assertion: _tcp->tt_msg->tt_cpuid == mycpuid in tcp_callout_stop
> >
> > will "shutdown now" trigger the panic?

Yes, as well as all forms of shutdown:
  shutdown -p now
  shutdown -h now
  pressing ctrl-alt-del

> BTW, do you have:
> kern.sync_on_panic=0
> in /etc/sysctl.conf
> and
> dumpdev="your_swap_device"
> in /etc/rc.conf

I didn't have the sync_on_panic line; it works much better now.

I have put the vmcore here:
http://www.wolfpond.org/crash.dfly/

-- 
Francois Tigeot