xf86-video-imxfb segfaults

xf86-video-imxfb segfaults

[Kamil Lulko]

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

Re: xf86-video-imxfb segfaults

[Otavio Salvador]

On Tue, Jul 9, 2013 at 8:35 PM, Kamil Lulko <rev13@wp.pl> wrote:
> 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

Please report this in our bugzilla so we can track this.

--
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://projetos.ossystems.com.br
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