Este bug foi corrigido pelo autor: link
A mensagem de confirmação relevante: link
A correção ainda não foi retornada para o Wily.
Vejo
link para detalhes.
Parece que o Xorg / Intel em 15.10 está tendo problemas para não escrever entre as linhas (metaforicamente falando) e corromper a memória. Aqui está a saída do erro, alguém mais se deparou com isso ... fica pior com qualquer blitting.
(EE) [mi] EQ overflowing. Additional events will be discarded until existing ev
ents are processed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x55b04a9d062e]
(EE) 1: /usr/bin/X (mieqEnqueue+0x253) [0x55b04a9b2313]
(EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x55b04a88c152]
(EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f1aca31d000+0x60a7) [0x7f1a
ca3230a7]
(EE) 4: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f1aca31d000+0x687d) [0x7f1a
ca32387d]
(EE) 5: /usr/bin/X (0x55b04a81c000+0x96ac8) [0x55b04a8b2ac8]
(EE) 6: /usr/bin/X (0x55b04a81c000+0xbfc52) [0x55b04a8dbc52]
(EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (0x7f1acfa49000+0x352f0) [0x7f1acfa7e2f0
]
(EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f1acfb460b7]
(EE) 9: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x2320d) [0x7
f1acbe4320d]
(EE) 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x26ab4) [0x
7f1acbe46ab4]
(EE) 11: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x5a05d) [0x
7f1acbe7a05d]
(EE) 12: /usr/bin/X (BlockHandler+0x4a) [0x55b04a878c8a]
(EE) 13: /usr/bin/X (WaitForSomething+0x163) [0x55b04a9cd393]
(EE) 14: /usr/bin/X (0x55b04a81c000+0x57fa1) [0x55b04a873fa1]
(EE) 15: /usr/bin/X (0x55b04a81c000+0x5c34b) [0x55b04a87834b]
(EE) 16: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f1acfa69a4
0]
(EE) 17: /usr/bin/X (_start+0x29) [0x55b04a8626c9]
(EE)
(EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the
stack.
(EE) [mi] mieq is *NOT* the cause. It is a victim.
(EE) [mi] EQ overflow continuing. 100 events have been dropped.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x55b04a9d062e]
(EE) 1: /usr/bin/X (QueuePointerEvents+0x52) [0x55b04a88c152]
(EE) 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f1aca31d000+0x60a7) [0x7f1a
ca3230a7]
(EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f1aca31d000+0x687d) [0x7f1a
ca32387d]
(EE) 4: /usr/bin/X (0x55b04a81c000+0x96ac8) [0x55b04a8b2ac8]
(EE) 5: /usr/bin/X (0x55b04a81c000+0xbfc52) [0x55b04a8dbc52]
(EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (0x7f1acfa49000+0x352f0) [0x7f1acfa7e2f0
]
(EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f1acfb460b7]
(EE) 8: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x2320d) [0x7
f1acbe4320d]
(EE) 9: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x26ab4) [0x7
f1acbe46ab4]
(EE) 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x5a05d) [0x
7f1acbe7a05d]
(EE) 11: /usr/bin/X (BlockHandler+0x4a) [0x55b04a878c8a]
(EE) 12: /usr/bin/X (WaitForSomething+0x163) [0x55b04a9cd393]
(EE) 13: /usr/bin/X (0x55b04a81c000+0x57fa1) [0x55b04a873fa1]
(EE) 14: /usr/bin/X (0x55b04a81c000+0x5c34b) [0x55b04a87834b]
(EE) 15: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f1acfa69a4
0]
(EE) 16: /usr/bin/X (_start+0x29) [0x55b04a8626c9]
(EE)
(EE) [mi] EQ overflow continuing. 200 events have been dropped.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x55b04a9d062e]
(EE) 1: /usr/bin/X (QueuePointerEvents+0x52) [0x55b04a88c152]
(EE) 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f1aca31d000+0x60a7) [0x7f1a
ca3230a7]
(EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f1aca31d000+0x687d) [0x7f1a
ca32387d]
(EE) 4: /usr/bin/X (0x55b04a81c000+0x96ac8) [0x55b04a8b2ac8]
(EE) 5: /usr/bin/X (0x55b04a81c000+0xbfc52) [0x55b04a8dbc52]
(EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (0x7f1acfa49000+0x352f0) [0x7f1acfa7e2f0
]
(EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f1acfb460b7]
(EE) 8: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x2320d) [0x7
f1acbe4320d]
(EE) 9: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x26ab4) [0x7
f1acbe46ab4]
(EE) 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+0x5a05d) [0x
7f1acbe7a05d]
(EE) 11: /usr/bin/X (BlockHandler+0x4a) [0x55b04a878c8a]
(EE) 12: /usr/bin/X (WaitForSomething+0x163) [0x55b04a9cd393]
(EE) 13: /usr/bin/X (0x55b04a81c000+0x57fa1) [0x55b04a873fa1]
(EE) 14: /usr/bin/X (0x55b04a81c000+0x5c34b) [0x55b04a87834b]
(EE) 15: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f1acfa69a4
0]
(EE) 16: /usr/bin/X (_start+0x29) [0x55b04a8626c9]
(EE)
[ 8417.862] [mi] Increasing EQ size to 1024 to prevent dropped events.
[ 8417.863] [mi] EQ processing has resumed after 211 dropped events.
[ 8417.863] [mi] This may be caused my a misbehaving driver monopolizing the se
rver's resources.
[ 8441.885] (EE) intel(0): Failed to submit rendering commands (Input/output er
ror), disabling acceleration.
[ 8441.886] (EE) intel(0): When reporting this, please include /sys/class/drm/c
ard0/error and the full dmesg.
[ 8491.132] (EE)
[ 8491.133] (EE) Backtrace:
[ 8491.133] (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x55b04a9d062e]
[ 8491.133] (EE) 1: /usr/bin/X (0x55b04a81c000+0x1b8999) [0x55b04a9d4999]
[ 8491.133] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f1acfa49000+0x352f0) [0
x7f1acfa7e2f0]
[ 8491.133] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+
0x1046cb) [0x7f1acbf246cb]
[ 8491.133] (EE) 4: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f1acbe20000+
0x10749b) [0x7f1acbf2749b]
[ 8491.133] (EE) 5: /usr/bin/X (DRI2SwapBuffers+0x1c8) [0x55b04a9a2cf8]
[ 8491.133] (EE) 6: /usr/bin/X (0x55b04a81c000+0x18867c) [0x55b04a9a467c]
[ 8491.133] (EE) 7: /usr/bin/X (0x55b04a81c000+0x5818f) [0x55b04a87418f]
[ 8491.134] (EE) 8: /usr/bin/X (0x55b04a81c000+0x5c34b) [0x55b04a87834b]
[ 8491.134] (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0
x7f1acfa69a40]
[ 8491.134] (EE) 10: /usr/bin/X (_start+0x29) [0x55b04a8626c9]
[ 8491.134] (EE)
[ 8491.134] (EE) Segmentation fault at address 0x10
[ 8491.134] (EE)
Fatal server error:
[ 8491.134] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 8491.134] (EE)
[ 8491.134] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 8491.134] (EE) Please also check the log file at "/var/log/Xorg.0.log" for ad
ditional information.
[ 8491.134] (EE)
[ 8491.160] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 8491.218] (EE) Server terminated with error (1). Closing log file.