[Bug 90725] Display chunks with xorg intel driver with Accel & when using swap space

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90725

--- Comment #31 from Fab Stz <fabstz-it at yahoo.fr> ---
I reproduced the crash for (7), I noticed these additional errors in the log
that I didn't have in the previous log

[  3022.724] (EE) intel(0): sna_mode_check: invalid state found on pipe 0,
disabling CRTC:20
[  3041.861] (EE) intel(0): sna_mode_check: invalid state found on pipe 0,
disabling CRTC:20
[  3056.676] (EE) intel(0): sna_mode_check: invalid state found on pipe 0,
disabling CRTC:20


This time the log ends with 
[  3079.772] (EE) Backtrace:
[  3079.772] (EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x7f0a4aa6dd46]
[  3079.773] (EE) 1: /usr/bin/X (0x7f0a4a8b7000+0x1baf29) [0x7f0a4aa71f29]
[  3079.773] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f0a485ab000+0x35180)
[0x7f0a485e0180]
[  3079.773] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so
(0x7f0a44851000+0xd6e4a) [0x7f0a44927e4a]
[  3079.773] (EE) 4: /usr/lib/xorg/modules/drivers/intel_drv.so
(0x7f0a44851000+0xd6fb3) [0x7f0a44927fb3]
[  3079.773] (EE) 5: /usr/lib/xorg/modules/drivers/intel_drv.so
(0x7f0a44851000+0xd8790) [0x7f0a44929790]
[  3079.773] (EE) 6: /usr/bin/X (0x7f0a4a8b7000+0x13d643) [0x7f0a4a9f4643]
[  3079.773] (EE) 7: /usr/bin/X (0x7f0a4a8b7000+0x133587) [0x7f0a4a9ea587]
[  3079.773] (EE) 8: /usr/bin/X (0x7f0a4a8b7000+0x573f7) [0x7f0a4a90e3f7]
[  3079.773] (EE) 9: /usr/bin/X (0x7f0a4a8b7000+0x5b596) [0x7f0a4a912596]
[  3079.773] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5)
[0x7f0a485ccb45]
[  3079.773] (EE) 11: /usr/bin/X (0x7f0a4a8b7000+0x4590e) [0x7f0a4a8fc90e]
[  3079.773] (EE) 
[  3079.773] (EE) Segmentation fault at address 0x9
[  3079.773] (EE) 
[  3079.773] (EE) Caught signal 11 (Segmentation fault). Server aborting

I ran 
addr2line -i -e /usr/lib/xorg/modules/drivers/intel_drv.so 0xd6e4a 0xd6fb3
0xd8790

And got the same output :
??:0
??:0
??:0

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