[Bug 74176] [snb] GPU hang IPEHR: 0x7a000002

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74176

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
It appears that the binding table for the source is a stale value (and points
before the start of the batch). This is impossible - so perhaps a
use-after-free?

commit 7df3da10e744d7f168ea3f30b21c434f99beae17
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Jan 29 13:06:08 2014 +0000

    sna/gen4+: Assert that the cached binding location is valid

    We can at least check that it is in the right region (i.e. not past
    where the current surface has been allocated from).

    References: https://bugs.freedesktop.org/show_bug.cgi?id=74176
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

That should catch this particular error, but I hope compiling with assertions
enabled (--enable-debug) will detect the fault much earlier.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20140129/f7ef32e5/attachment.html>