Fresh 7.0 Install: Fatal Trap 12 panic when put under load

[Jeremy Chadwick]

On Tue, Jul 15, 2008 at 10:58:19AM +0100, John Sullivan wrote:
> I am experiencing 'random' reboots interspersed with panics whenever I put a newly installed system under load (make index in
> /usr/ports is enough).  A sample panic is at the end of this email.
>  
> I have updated to 7.0-RELEASE-p2 using the GENERIC amd64 kernel and it is still the same.  The system is a Gigabyte GA-M56S-S3
> motherboard with 4GB of RAM, an Athlon X2 6400+ and 3 x Maxtor SATA 750GB HDD's (only the first is currently in use).  The first
> disk is all allocated to FreeBSD using UFS.  There is also a Linksys 802.11a/b/g card installed.  I have flashed the BIOS to the
> latest revision (F4e).  The onboard RAID is disabled.
>  
> At the moment there is no exotic software installed.
>  
> Although I have been using FreeBSD for a number of years this is the first time I have experienced regular panics and am at a
> complete loss trying to work out what is wrong.  I would be grateful for any advice anyone is willing to give to help me
> troubleshoot this issue.

Can the system in question run memtest86+ successfully (no errors)
for an hour?  It would help diminish (but not entirely rule out)
hardware (memory or chipset) issues.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |