ports/113430: Kernel Panic with kqemu on AMD64 SMP

[Allan Jude]

>Number:         113430
>Category:       ports
>Synopsis:       Kernel Panic with kqemu on AMD64 SMP
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jun 06 20:40:04 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Allan Jude
>Release:        FreeBSD 6.2-release-p5
>Organization:
ThunderIT Consulting Inc.
>Environment:
FreeBSD pegasus.serverbolt.net 6.2-RELEASE-p5 FreeBSD 6.2-RELEASE-p5 #0: Mon Jun  4 14:20:11 EDT 2007     root at pegasus.serverbolt.net:/usr/obj/usr/src/sys/SMP  amd64

>Description:
When i use ports/emulators/qemu with ports/emulators/kqemu-kmod under an AMD64 SMP kernel, it causes a panic (trap 12, supervisor read, page not present)

it works fine under i386 SMP, or AMD64 UP

i have tried qemu/kqemu binaries from pkg_add and compiled from source, as well as  the latest qemu-devel




>How-To-Repeat:
start qemu-system-x86_64 with kqemu (either -kernel-kqemu or without -no-kqemu)

system will panic immediately.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: