Re: [Intel-gfx] kernel BUG at drivers/gpu/drm/i915/i915_gem

2011-12-16 Thread tino . keitel+xorg
On Thu, Dec 15, 2011 at 19:54:15 +0100, tino.keitel+x...@tikei.de wrote: On Wed, Dec 14, 2011 at 20:57:51 +0100, tino.keitel+x...@tikei.de wrote: [...] it looks I stumbled over the same: [88399.844150] kernel BUG at drivers/gpu/drm/i915/i915_gem.c:1952! 2011-12-14_19:28:56.93083

Re: [Intel-gfx] kernel BUG at drivers/gpu/drm/i915/i915_gem

2011-12-16 Thread Keith Packard
On Fri, 16 Dec 2011 17:38:39 +0100, tino.keitel+x...@tikei.de wrote: Hum, could this be related to the RC6 vs. IOMMU issue? I have CONFIG_INTEL_IOMMU enabled in 3.2, and disabled in 3.1, and boot with i915.i915_enable_rc6=1. Very likely -- RC6 and semaphores are not compatible with IOMMU. You

Re: [Intel-gfx] kernel BUG at drivers/gpu/drm/i915/i915_gem

2011-12-14 Thread tino . keitel+xorg
On Wed, Dec 14, 2011 at 02:47:33 +0100, Daniel Vetter wrote: On Mon, Dec 12, 2011 at 10:16, Rocko Requin rockoreq...@hotmail.com wrote: If you can wire up netconsole you should be able to gather the full backtrace and that would be really useful. Otherwise can you please confirm by

Re: [Intel-gfx] kernel BUG at drivers/gpu/drm/i915/i915_gem

2011-12-13 Thread Daniel Vetter
On Mon, Dec 12, 2011 at 10:16, Rocko Requin rockoreq...@hotmail.com wrote: If you can wire up netconsole you should be able to gather the full backtrace and that would be really useful. Otherwise can you please confirm by reverting that commit from your current tree that it is indeed the

Re: [Intel-gfx] kernel BUG at drivers/gpu/drm/i915/i915_gem

2011-12-09 Thread Daniel Vetter
Hi Rocko, Thanks for the bug report. Please report bugs always on the public mailing list so that all interest people can join in (also I'm travelling atm, so I can't do much). Afaics we're hitting BUG_ON(seqno == 0) in wait_requst. Unfortunately you've cut out the backtrace from the kernel

Re: [Intel-gfx] kernel BUG at drivers/gpu/drm/i915/i915_gem

2011-12-09 Thread Daniel Vetter
On Sat, Dec 10, 2011 at 03:09, Rocko Requin rockoreq...@hotmail.com wrote: Please report bugs always on the public mailing list so that all interest people can join in Apologies, I used to log them to the kernel bug tracker, which never came back up after kernel.org was rebuilt, and I didn't