[Bug 74494] New: gm45: dies with X: kgem.h:564: kgem_bo_is_busy: Assertion `bo->refcnt' failed.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74494

          Priority: medium
            Bug ID: 74494
          Assignee: chris at chris-wilson.co.uk
           Summary: gm45: dies with X: kgem.h:564: kgem_bo_is_busy:
                    Assertion `bo->refcnt' failed.
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: arekm at maven.pl
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

I'm using tkabber (jabber IM client) with tabs. Someone send me a message, with
regular text that when tkabber displays it causes intel ddx to die. If I
display it with text editor (based on tkabber conversation log) then nothing
bad happens. So I'm able to trigger it (very, very reliably) with tkabber.

When debugging is enabled it dies with:
X: kgem.h:564: kgem_bo_is_busy: Assertion `bo->refcnt' failed.

When debugging is disabled then immediately all texts on screen gets corrupted
and few seconds after X freezes, even sysrq+r doesn't work.


I'm keeping that tkabber tab for future testing (I can switch to other git
versions or apply some patches to test).

Note that this is first time I see such problem. I'm using tkabber a lot,
getting different messages and no problem occurs. That one, single message
contents makes driver go nuts. I've also tried git versions from december and
few from january - all these die with this "tkabber test".

Here is debug=full log:
http://ixion.pld-linux.org/~arekm/intel-weird1.txt.gz

and kdm log:
Initializing built-in extension XFree86-DRI
Initializing built-in extension DRI2
Loading extension GLX
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Error:            Meta_L added to symbol map for multiple modifiers
>                   Using Mod4, ignoring Mod1.
> Error:            Key <META> added to map for multiple modifiers
>                   Using Mod4, ignoring Mod1.
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
Allocated pixmaps: 672 (cached: 5), bo: 236, 45162496 bytes (CPU bo: 9, 9752576
bytes)
Allocated pixmaps: 902 (cached: 5), bo: 301, 51916800 bytes (CPU bo: 25,
10063872 bytes)
X: kgem.h:566: kgem_bo_is_busy: Assertion `bo->refcnt' failed.


xserver 1.15
driver at 1cbc59a917e7352fc68aa0e26b1575cbd0ceab0d (so current git)
3.13.1 kernel

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