Re: 8.0RC2 amd64 - kernel panic running make buildworld

From: Alexandre \ <gaijin.k_at_gmail.com>
Date: Fri, 06 Nov 2009 07:55:51 -0500
On Thu, 2009-11-05 at 19:40 +0300, S.N.Grigoriev 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.
If your system does not have "option DDB", it would not have sysctl
above, which might be just as well.

Does savecore -v output makes sense?

Where I am heading with all of that is the possibility that your system
panic(9)'ed and saved no core, hence, looking like it just rebooted. 

-- 
Alexandre Kovalenko (Олександр Коваленко)
Received on Fri Nov 06 2009 - 11:55:54 UTC

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