[Bug 92751] New: Segmentation Fault in sna_put_zpixmap_blt (X server crash)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92751

            Bug ID: 92751
           Summary: Segmentation Fault in sna_put_zpixmap_blt (X server
                    crash)
           Product: xorg
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: joe at wildlava.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

Created attachment 119308
  --> https://bugs.freedesktop.org/attachment.cgi?id=119308&action=edit
Xorg.0.log

I get a somewhat random X server crash (I say somewhat, since it tends to
happen when I am running qemu and actively using several urxvt terminals). The
more I am doing, the more likely, but that's probably case with many X bugs.

It is happening with the latest xf86-video-intel from git (commit d78200e),
which I built from source today, but it also was happening with the latest Arch
Linux package (git commit df72bc5).

Here's a traceback with debug symbols:

[   271.424] (EE) 0: /usr/lib/xorg-server/Xorg (OsLookupColor+0x139) [0x596d09]
[   271.425] (EE) 1: /usr/lib/libc.so.6 (__restore_rt+0x0) [0x7f8555a7a67f]
[   271.427] (EE) 2: /usr/lib/xorg/modules/drivers/intel_drv.so
(__kgem_retire_rq+0x58) [0x7f85506170e8]
[   271.428] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so
(__kgem_retire_requests_upto+0x47) [0x7f8550618417]
[   271.428] (EE) 4: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_put_zpixmap_blt.isra.96+0x401) [0x7f855064b441]
[   271.428] (EE) 5: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_put_image+0x215) [0x7f855064b665]
[   271.428] (EE) 6: /usr/lib/xorg-server/Xorg (DamageRegionAppend+0x3783)
[0x5216c3]
[   271.428] (EE) 7: /usr/lib/xorg-server/Xorg (SyncVerifyFence+0x2205)
[0x4d8ec5]
[   271.428] (EE) 8: /usr/lib/xorg-server/Xorg (SyncVerifyFence+0x3645)
[0x4dbb85]
[   271.429] (EE) 9: /usr/lib/xorg-server/Xorg (SendErrorToClient+0x2ff)
[0x438fbf]
[   271.429] (EE) 10: /usr/lib/xorg-server/Xorg (remove_fs_handlers+0x41b)
[0x43d09b]
[   271.429] (EE) 11: /usr/lib/libc.so.6 (__libc_start_main+0xf0)
[0x7f8555a67610]
[   271.429] (EE) 12: /usr/lib/xorg-server/Xorg (_start+0x29) [0x427489]
[   271.430] (EE) 13: ? (?+0x29) [0x29]

If I can turn on additional debugging to help, let me know, but this is not
always quickly reproducible. I tried using --enable-debug=full, but the file
got way too large.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20151030/559ebee2/attachment-0001.html>