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Date: Wed, 10 Jul 2013 01:35:03 +0200
From: "Kamil Lulko" <rev13@wp.pl>
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Subject: xf86-video-imxfb segfaults
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Hello,

After building image with XFCE desktop environment and hw accelerated X11 for my i.MX53 board I encounter xorg segmentation faults when running Ristretto Image Viewer. This happens both on Danny and Master branches. Web browsers also seem to trigger this bug. Below is gdb backtrace from the crash:

Program received signal SIGSEGV, Segmentation fault.
imxExaZ160CheckComposite (op=3, pPictureSrc=0x39d268, pPictureMask=0x39c4e0, 
    pPictureDst=0x3abf58)
    at /usr/src/debug/xf86-video-imxfb/11.09.01-r12/xserver-xorg-video-imx-11.09.01/src/imx_exa_z160.c:1840
1840pPixmapMask->drawable.width *
(gdb) bt
#0  imxExaZ160CheckComposite (op=3, pPictureSrc=0x39d268, 
    pPictureMask=0x39c4e0, pPictureDst=0x3abf58)
    at /usr/src/debug/xf86-video-imxfb/11.09.01-r12/xserver-xorg-video-imx-11.09.01/src/imx_exa_z160.c:1840
#1  0x2ab72eb8 in ?? () from /usr/lib/xorg/modules/libexa.so
Cannot access memory at address 0x201ffff8
(gdb) 

This leads to following message from Xorg log:
(EE) Segmentation fault at address 0xc

Best regards,
Kamil Lulko