SV: i915 update to Linux 3.8 ready!

[Anders Bolt-Evensen]

> -----Opprinnelig melding-----
> Fra: owner-freebsd-x11 at freebsd.org [mailto:owner-freebsd-
> x11 at freebsd.org] På vegne av Jean-Sébastien Pédron
> Sendt: fredag 11. mars 2016 22.08
> Til: freebsd-x11 at freebsd.org
> Emne: Re: i915 update to Linux 3.8 ready!
> 
> On 11/03/2016 21:23, Frederic Chardon wrote:
> > Hi!
> 
> Hi!
> 
> > I now have a very reproducible panic in Xorg on my 965GM (Dell
> > Latitude D630). No problem at the console with i915kms loaded.
> 
> How do you reproduce it?
> 
> > vm_fault: pager read error, pid 44151 (Xorg) Kernel page fault with
> > the following non-sleepable locks held:
> > exclusive rw vm object (vm object) r = 0 (0xfffff80205757528) locked @
> > /usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/i915_gem.c:16
> > 26
> > stack backtrace:
> > #0 0xffffffff80405490 at witness_debugger+0x70
> > #1 0xffffffff80406777 at witness_warn+0x3d7
> > #2 0xffffffff805eb137 at trap_pfault+0x57
> > #3 0xffffffff805ea7c4 at trap+0x284
> > #4 0xffffffff805cc857 at calltrap+0x8
> > #5 0xffffffff805a1428 at vm_fault+0x78
> > #6 0xffffffff805eb1f5 at trap_pfault+0x115
> > #7 0xffffffff805ea882 at trap+0x342
> > #8 0xffffffff805cc857 at calltrap+0x8
> 
> Could you please send the whole core.txt.$n?
> 
> --
> Jean-Sébastien Pédron

I can now confirm I too have the same problem.

A few days ago, I posted an answer where I said I wasn't sure I had the same problem, but after compiling the GENERIC debug kernel (I used a custom kernel up until yesterday), I can confirm that I too have the same problem.
I have attached the content of core.txt.0. I once again tried to attach it here, but that message got rejected as it was almost 100 kb too big.
Instead, core.txt.0is available here: https://www.dropbox.com/s/kpe84o0j0bna22z/core.txt.0?dl=0

Anders