Page fault

[Michael Neumann]

On Fri, Jul 25, 2025 at 11:45:41AM -0700, Matthew Dillon wrote:
> 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

I've also applied this patch, as I've experienced page faults regularily
when running chrome for a while (with lots of open tabs :).

I even have a core dump of one of the crashes in case it's helpful for
you.

No page fault since I've applied the patch so far...

Regards,

  Michael

> 
> 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