[solved][panic] fatal trap 9 on KVM virt with AMD – hw.mca.enabled=0

[2501]

Hello forum

I've successfully installed pfsense 2.0 beta4 on a kvm virtualized environment running on AMD processors.

Problem:
Just like FreeBSD 8.1, pfsense 2.0 crashed on me with fatal trap 9 in early boot stage.
(64 bit FreeBSD 8.1 crashed with fatal trap 12 … )

Fix:
Choose "7. loader prompt" on boot menu.

set hw.mca.enabled=0
boot

After successfull install, add hw.mca.enabled=0 to /boot/loader.conf.

echo "hw.mca.enabled=0" >> /boot/loader.conf

…has to be applied again after every upgrade of pfsense.

successfully tested on cloudsigma.com and elastichosts.com .

[jimp]

Use /boot/loader.conf.local - it should be left alone between upgrades.

[sullrich]

I just added this tweak so it should be supported out of the box.  Please test next snapshot.

[toomeek]

I didn't noticed such error when using Intel Xeon or Intel Core 2 Duo processors with Qemu-KVM. Just for the information.

[2501]

Thank you guys!

I'm really impressed.
@sullrich mille grazie for the commit!
@jimp thanks for the hint.

@TooMeeK: confirm - I've tested with FreeBSD 8.1. This panic only occurs on KVM running on AMD.
FreeBSD 8.1 on KVM running on Intel does not need the fix.