Page fault

[Matthew Dillon]

Interesting.  m->object can be NULL there but we have two unguarded tests
that indirect through it.  Please try this patch to the kernel sources and
rebuild your kernel:

https://apollo.backplane.com/DFlyMisc/vm40.patch

Yell if you need help obtaining sources and rebuilding your kernel.
 Sources can be obtained from the Makefile in /usr ... "cd /usr; make" to
get a quick help.  Patch the sources with the above patch, and rebuild and
reinstall the kernel with:

(to get help obtaining the source tree)
cd /usr
make

(to rebuild the kernel)
cd /usr/src
(using the patch obtained from the URL above)
patch -p1 < drm40.patch
make build-all
(and if that succeeds)
make install-all

Then reboot and tell us if that solves the problem.

-Matt
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