trap 12: page fault while in kernel mode on 8.0-RELEASE (possibly bge(4) related)

[Slawa Olhovchenkov]

On Sun, Feb 21, 2010 at 03:41:53PM -0800, Pyun YongHyeon wrote:

> On Sun, Feb 21, 2010 at 12:44:50AM +0300, Slawa Olhovchenkov wrote:
> > On Fri, Feb 19, 2010 at 01:12:01PM -0800, Pyun YongHyeon wrote:
> > 
> > > Normally you should not have any FCS errors, it could be related
> > > with signal quality and these errors might not be correctly
> > > counted.
> > 
> > I can't check cable and switch counters on bge1 before Feb 24.
> > 
> > > > 3. packets don't lost on sources at Aug'09
> > > 
> > > Since I don't have BCM5704 hardware it's hard to find which
> > > revision may affect to this issue. Could you narrow down which
> > > revision number started showing the issue?
> > 
> > I am don't update source between Aug'09 and Feb 16.
> > 
> 
> There were many bge(4) changes in that time frame. So it's hard to
> find which commit is guilty for the packet drop issue. If you can
> narrow down possible changes that might affect the issue that could
> help me a lot. You can do binary searching technique for the SVN
> revisions to know possible candidates.
> http://svn.freebsd.org/viewvc/base/head/sys/dev/bge/if_bge.c

How I can do this?
I don't work w/ svn before and don't know optimal way for one file.