Messages in this thread | | | From | Chris Wilson <> | Subject | Re: 3.5 regression on i915 | Date | Sat, 06 Oct 2012 10:04:00 +0100 |
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On Sat, 6 Oct 2012 10:42:58 +0200, Willy Tarreau <w@1wt.eu> wrote: > On Sat, Oct 06, 2012 at 09:24:35AM +0100, Chris Wilson wrote: > > More likely X is segfaulting for another reason altogether. Can you > > please attach the stacktrace (with symbols!) and see if another > > bisection is required? > > Yes, here it is. > > (EE) intel(0): Failed to initialize kernel memory manager > > Backtrace: > 0: X(xf86SigHandler+0x7e) [0x80d8b5e] > 1: [0xffffe400] > 2: /usr/lib/xorg/modules/drivers//intel_drv.so(i830_allocator_init+0x332) [0xb73756e2]
Drat, that is:
commit 7bb6fb8dd958ae773ac205282e3c0b56c22e01ed Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Apr 24 08:22:52 2012 +0200
drm/i915: disallow gem ums init ioctl for kms
This ioctl used in a kms driver is only useful to create massive havoc.
Can't see just why -intel crashes, but I presume it is during the i830_free_memory along that path.
Anyway, looks like that patch needs to be reverted. -Chris
-- Chris Wilson, Intel Open Source Technology Centre
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