Re: 8.0RC2 amd64 - kernel panic running make buildworld

From: Mark Atkinson <atkin901_at_yahoo.com>
Date: Tue, 10 Nov 2009 09:15:42 -0800
Andriy Gapon wrote:
> on 10/11/2009 17:22 gary.jennejohn_at_freenet.de said the following:
>> Well, OK, I may have misinterpreted what you wrote or have chosen bad
>> wording myself to convey the same message.  Nonetheless it looks like
>> a hardware problem to me.
> 
> [Trying to make up for my previous mistake.]
> 
> The symptom certainly looks like misbehaving hardware, but other information from
> the reports seems to suggest that it is possible that this misbehavior might be
> caused by software misconfiguring the hardware.
> 
> I would re-test vm.pmap.pg_ps_enabled=0 just to be sure that it was correctly teh
> first time.
> I would try to see how 8.0-RC1 kernel behaves and in general try to find last
> working, first non-working version.
> It would be useful to know any (if any) non-default loader.conf and rc.conf
> settings or kernel config (if not GENERIC).
> 
> Not a trivial issue unless it is hardware indeed.
> 

Also, you can try adding:

hw.mca.enabled="1" in /boot/loader.conf, reboot,  and then see if there
is a machine check exception on the console during the buildworld.
Received on Tue Nov 10 2009 - 16:16:17 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:39:57 UTC