fatal trap 9 on freebsd with AMD Opteron 6262 HE and Proxmox — hw.mca.enabled=0

Bug:

• “Fatal trap 9: general protection fault while in kernel mode”

Enter the following load option “hw.mca.enabled=0”

• set hw.mca.enabled=0
• boot

Repeat manually disable MCA after installation

• set hw.mca.enabled=0
• boot

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

• mount -rw /
• echo “hw.mca.enabled=0” >> /boot/loader.conf