freebsd stable - Sep 2010 - kernel panic when accessing /dev/tap0

Hi,

Robert Watson described a problem in this discussion: 
http://lists.freebsd.org/pipermail/freebsd-stable/2006-May/025880.html
Currently I'm experiencing a similar problem, but on amd64 and FreeBSD 
8.1 Release. Accessing /dev/tap0 instantly results in a kernel panic, so 
it's most likely if_tap related. Is this a known problem? I've started 
encountering it ever since I rebuilt my kernel with "options vimage".

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x28

If more debugging information is required I will gladly provide it.

Frank Razenberg

On Wed, 1 Sep 2010, Frank Razenberg wrote:

Hey,
> Robert Watson described a problem in this discussion: 
> http://lists.freebsd.org/pipermail/freebsd-stable/2006-May/025880.html
> Currently I'm experiencing a similar problem, but on amd64 and FreeBSD
8.1
> Release. Accessing /dev/tap0 instantly results in a kernel panic, so
it's
> most likely if_tap related. Is this a known problem? I've started 
> encountering it ever since I rebuilt my kernel with "options
vimage".
this is expected.  I have a work in progress fix in perforce for
most/all cloned interfaces.  It's only a matter of extracting patches
now but it'll be anohter few days till I'll get to that.

/bz


PS: freebsd-virtualization@ might be the better place to post VIMAGE
problems.

-- 
Bjoern A. Zeeb                       This signature is about you not me.