Re: 8.0RC2 amd64 - kernel panic running make buildworld

On Thu, 05 Nov 2009 19:40:03 +0300
S.N.Grigoriev <serguey-grigoriev_at_yandex.ru> wrote:

> 
> 04.11.09, 16:51, "Alexandre \"Sunny\" Kovalenko" <gaijin.k_at_gmail.com>
> wrote:
> 
> > On Wed, 2009-11-04 at 13:44 +0300, S.N.Grigoriev wrote:
> > > Hi list,
> > > 
> > > I can confirm I've seen the same problem. After upgrading from 7-stable
> > > to 8.0-RC2 my machine just reboots during 'make buildworld' without
> > > diagnostics. But switching vm.pmap.pg_ps_enabled on/off does not
> > > work for me. My machine reboots every time I try to build world.
> > > I don't think I have a hardware problem: under 7-stable I can build
> > > world/kernel for both 7-stable and 8.0-RC2 without problems.
> > > 
> > Is it by any chance possible that you have 'debug.debugger_on_panic' set
> > to '0' and no valid dump device configured?
> 
> Hi Alexandre,
> 
> I've not found 'debug.debugger_on_panic' variable in 'sysctl -a'
> output. Where cat I find it? All my sysctl variables are set by
> default.

Do you have "options DDB" in your kernel config file?

---
Gary Jennejohn