[Bug 90968] sigsegv from "sna/dri2: Mark the pending backbuffer copy as active"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90968

--- Comment #8 from Andreas Reis <andreas.reis at gmail.com> ---
[  4170.522] (EE) 
[  4170.522] (EE) Backtrace:
[  4170.522] (EE) 0: /usr/bin/xorg-server/Xorg (OsLookupColor+0x139) [0x5f22a9]
[  4170.523] (EE) 1: /usr/lib/libc.so.6 (killpg+0x40) [0x7fddea0505ef]
[  4170.523] (EE) 2: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_dri2_schedule_swap+0xec0) [0x7fdde42efa00]
[  4170.524] (EE) 3: /usr/bin/xorg-server/Xorg (DRI2SwapBuffers+0x1c1)
[0x5b72d1]
[  4170.524] (EE) 4: /usr/bin/xorg-server/Xorg (DRI2GetParam+0xbf8) [0x5b9418]
[  4170.524] (EE) 5: /usr/bin/xorg-server/Xorg (SendErrorToClient+0x30f)
[0x43c24f]
[  4170.524] (EE) 6: /usr/bin/xorg-server/Xorg (remove_fs_handlers+0x414)
[0x441c04]
[  4170.524] (EE) 7: /usr/lib/libc.so.6 (__libc_start_main+0xf0)
[0x7fddea03d790]
[  4170.525] (EE) 8: /usr/bin/xorg-server/Xorg (_start+0x29) [0x427489]
[  4170.525] (EE) 
[  4170.525] (EE) Segmentation fault at address 0x7c
[  4170.525] (EE) 
Fatal server error:
[  4170.525] (EE) Caught signal 11 (Segmentation fault). Server aborting
[  4170.525] (EE) 
[  4170.525] (EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
[  4170.525] (EE) Please also check the log file at
"/home/meme/.local/share/xorg/Xorg.0.log" for additional information.
[  4170.525] (EE) 
[  4170.525] (II) AIGLX: Suspending AIGLX clients for VT switch
[  4170.550] (EE) 
[  4170.550] (EE) Backtrace:
[  4170.551] (EE) 0: /usr/lib/xorg/modules/drivers/intel_drv.so
(kgem_set_mode.isra.46.constprop.79+0x57) [0x7fdde42c7e77]
[  4170.551] (EE) 1: /usr/lib/xorg/modules/drivers/intel_drv.so
(gen7_render_copy_boxes+0xfbd) [0x7fdde42ced8d]
[  4170.552] (EE) 2: /usr/lib/xorg/modules/drivers/intel_drv.so
(__sna_dri2_copy_region+0x382) [0x7fdde42eca32]
[  4170.552] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so
(chain_swap+0x126) [0x7fdde42edec6]
[  4170.553] (EE) 4: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_dri2_vblank_handler+0x20a) [0x7fdde42f0b9a]
[  4170.553] (EE) 5: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_mode_wakeup+0x235) [0x7fdde4219c85]
[  4170.554] (EE) 6: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_mode_reset+0x2f4) [0x7fdde421c2f4]
[  4170.554] (EE) 7: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_leave_vt+0x20) [0x7fdde421f460]
[  4170.555] (EE) 8: /usr/lib/xorg/modules/extensions/libglx.so
(GlxSetVisualConfigs+0xb66d) [0x7fdde6ec9fad]
[  4170.555] (EE) 9: /usr/bin/xorg-server/Xorg (AbortDDX+0x7c) [0x4944cc]
[  4170.555] (EE) 10: /usr/bin/xorg-server/Xorg (LogSetParameter+0x92)
[0x5ff6c2]
[  4170.555] (EE) 11: /usr/bin/xorg-server/Xorg (FatalError+0x13d) [0x60045d]
[  4170.555] (EE) 12: /usr/bin/xorg-server/Xorg (OsLookupColor+0x18e)
[0x5f22fe]
[  4170.556] (EE) 13: /usr/lib/libc.so.6 (killpg+0x40) [0x7fddea0505ef]
[  4170.556] (EE) 14: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_dri2_schedule_swap+0xec0) [0x7fdde42efa00]
[  4170.556] (EE) 15: /usr/bin/xorg-server/Xorg (DRI2SwapBuffers+0x1c1)
[0x5b72d1]
[  4170.556] (EE) 16: /usr/bin/xorg-server/Xorg (DRI2GetParam+0xbf8) [0x5b9418]
[  4170.556] (EE) 17: /usr/bin/xorg-server/Xorg (SendErrorToClient+0x30f)
[0x43c24f]
[  4170.556] (EE) 18: /usr/bin/xorg-server/Xorg (remove_fs_handlers+0x414)
[0x441c04]
[  4170.557] (EE) 19: /usr/lib/libc.so.6 (__libc_start_main+0xf0)
[0x7fddea03d790]
[  4170.557] (EE) 20: /usr/bin/xorg-server/Xorg (_start+0x29) [0x427489]
[  4170.557] (EE) 
[  4170.557] kgem_set_mode:414 assertion '!kgem->wedged' failed

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