NetBSD 5.0RC2, amd64, XEN_DOM0, panic

[Jukka Marin <jmarin%embedtronics.fi@localhost>]

Hi,

I reported this to Manuel Bouyer several months ago when running -current.
I decided to give 5.0RC2 a try yesterday, but the problem remains.

I have a quad core Intel system (Supermicro hardware, 4 GB RAM, Areca RAID
controller) which runs a GENERIC amd64 kernel without problems (I have done
several NetBSD builds).  When running XEN_DOM0 kernel, the system locks up
or panics every time before completing a build.

Here's the latest panic (or what I can see of it):

Stopped in pid 20240.1 (cc1) at netbsd:breakpoing+0x5:  leave
breakpoint() at netbsd:breakpoint+0x5
panic() at netbsd:panic+0x242
uvm_unmap_remove() at netmsd:uvm_unmap_remove+0x3b3
uvmspace_free() at netbsd:uvmspace_free+0x109
exit1() at netbsd:exit1+0x1c1
sys_exit() at netbsd:sys_exit+0x53
syscall() at netbsd:syscall+0xb4
...

The register dump is at http://www.jmp.fi/~jmarin/panic090320.tiff

The kernel was built from the sources yesterday (tag netbsd-5) and xen is
xenkernel33-3.3.1nb1, built today.

I'll run memtest on the box for a while now, but I think the hardware is OK
as GENERIC kernel has no problems.

  -jm