Ticket #5000 (closed defect: fixed)
Host crashes with "BAD TRAP" when a guest runs with more than one CPU
|Reported by:||joe42||Owned by:|
Host: Solaris 10 (kernel Generic_141415-07), two AMD 2210 dual core processors, 4GiB memory (Sun Fire x2100 box)
After upgrading from 3.0.4 to 3.0.6, the host has started to crash when I use a multi-cpu guest system. This is reproducible with both a 32-bit Windows 2000 guest with the guest utilities installed and a 32-bit Debian 5 without the guest utilities installed.
It will "reliably" crash within a few hours if a guest system runs with more than 1 CPU. Previously, with VirtualBox 3.0.4 the same guests ran reliably (but very slowly) in this mode.
If the number of CPUs is set to 1 in the VM settings, the host system runs stable.
The error in the dmesg on the host system is:
savecore: [ID 570001 auth.error] reboot after panic: BAD TRAP: type=e (#pf Page fault) rp=fffffe80007af670 addr=a90 occurred in module "<unknown>" due to a NULL pointer dereference savecore: [ID 748169 auth.error] saving system crash dump in /var/crash//*.3
Is there anything I can do to help debug this problem?