linux-kernel - 3.12-rc7 nouveau cause X.org crash

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Date:	Tue, 29 Oct 2013 18:22:33 +0800
From:	david chen <david.qsan@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: 3.12-rc7 nouveau cause X.org crash

Hi all:

I am using 3.10.1x on my desktop, and it's all nice and quiet.
But today, when I try to upgrade to 3.12-rc7, X crashed on login screen

snippet from /var/log/Xorg.0.log.old:
[   103.981] nouveau_exa_upload_to_screen:384 - falling back to memcpy
ignores tiling
[   118.980] (EE)
[   118.980] (EE) Backtrace:
[   118.989] (EE) 0: /usr/bin/X (xorg_backtrace+0x34) [0x7f8e305d02a4]
[   118.989] (EE) 1: /usr/bin/X (0x7f8e3041a000+0x1ba1f9) [0x7f8e305d41f9]
[   118.989] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0
(0x7f8e2f740000+0xfcb0) [0x7f8e2f74fcb0]
[   118.989] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6
(0x7f8e2e3a4000+0x7ed75) [0x7f8e2e422d75]
[   118.989] (EE) 4: /lib/x86_64-linux-gnu/libc.so.6
(0x7f8e2e3a4000+0x80496) [0x7f8e2e424496]
[   118.989] (EE) 5: /lib/x86_64-linux-gnu/libc.so.6
(__libc_malloc+0x75) [0x7f8e2e426f95]
[   118.989] (EE) 6: /usr/lib/xorg/modules/libexa.so
(0x7f8e2c3c1000+0x88f4) [0x7f8e2c3c98f4]
[   118.989] (EE) 7: /usr/lib/xorg/modules/libexa.so
(0x7f8e2c3c1000+0x13497) [0x7f8e2c3d4497]
[   118.989] (EE) 8: /usr/lib/xorg/modules/libexa.so
(0x7f8e2c3c1000+0xf888) [0x7f8e2c3d0888]
[   118.989] (EE) 9: /usr/lib/xorg/modules/libexa.so
(0x7f8e2c3c1000+0xfc70) [0x7f8e2c3d0c70]
[   118.989] (EE) 10: /usr/bin/X (0x7f8e3041a000+0x13bdf4) [0x7f8e30555df4]
[   118.989] (EE) 11: /usr/lib/xorg/modules/libexa.so
(0x7f8e2c3c1000+0x10b10) [0x7f8e2c3d1b10]
[   118.989] (EE) 12: /usr/bin/X (0x7f8e3041a000+0x134d71) [0x7f8e3054ed71]
[   118.990] (EE) 13: /usr/bin/X (0x7f8e3041a000+0x558d1) [0x7f8e3046f8d1]
[   118.990] (EE) 14: /usr/bin/X (0x7f8e3041a000+0x4423a) [0x7f8e3045e23a]
[   118.990] (EE) 15: /lib/x86_64-linux-gnu/libc.so.6
(__libc_start_main+0xed) [0x7f8e2e3c576d]
[   118.990] (EE) 16: /usr/bin/X (0x7f8e3041a000+0x44591) [0x7f8e3045e591]
[   118.990] (EE)
[   118.990] (EE) Segmentation fault at address 0xfffffffff2ac1d18
[   118.990]
Fatal server error:
[   118.990] Caught signal 11 (Segmentation fault). Server aborting

Full dmesg and Xorg log in attachment.
Can anyone help me?

Thanks,
David

View attachment "kern.log" of type "text/x-log" (65609 bytes)

Download attachment "Xorg.0.log.old" of type "application/x-trash" (49092 bytes)