commit d6b7f96fde1add92fd11f5a75869ae6fc688bf77 causes Xserver segmentation fault

[Jeff Chua]

Chris,

I git pulled the latest code today, and it's still causing segmentation
fault running VMware on this commit. Reverting it solves the problem. Is
there anything that can be done to resolve this in a proper way than
reverting the code?

Thanks,
Jeff


On Thu, Mar 18, 2010 at 12:24 PM, Jeff Chua <jeff.chua.linux at gmail.com>wrote:

>
>
> commit d6b7f96fde1add92fd11f5a75869ae6fc688bf77 causes Xserver segmentation
> fault when starting VMWare 7.0.1. Reverting this patch make vmware happy
> again!
>
> Here's the log ...
>
> Backtrace:
> 0: /usr/X11/bin/X (xorg_backtrace+0x28) [0x46a888]
> 1: /usr/X11/bin/X (0x400000+0x60369) [0x460369]
> 2: /lib64/libc.so.6 (0x7f6b5bfd3000+0x32290) [0x7f6b5c005290]
> 3: /lib64/libc.so.6 (memcpy+0x15b) [0x7f6b5c052bdb]
> 4: /usr/local/lib/libpixman-1.so.0 (0x7f6b5c9d7000+0x30982)
> [0x7f6b5ca07982]
> 5: /usr/local/lib/libpixman-1.so.0 (pixman_image_composite32+0xfdf)
> [0x7f6b5ca09a5f]
> 6: /usr/X11/lib/xorg/modules/drivers/intel_drv.so (0x7f6b5aaae000+0x210da)
> [0x7f6b5aacf0da]
> 7: /usr/X11/lib/xorg/modules/drivers/intel_drv.so (0x7f6b5aaae000+0x35bfb)
> [0x7f6b5aae3bfb]
> 8: /usr/X11/bin/X (0x400000+0xc4b7c) [0x4c4b7c]
> 9: /usr/X11/bin/X (0x400000+0x9bdc4) [0x49bdc4]
> 10: /usr/X11/bin/X (0x400000+0x9cb35) [0x49cb35]
> 11: /usr/X11/bin/X (0x400000+0x52ff4) [0x452ff4]
> 12: /usr/X11/bin/X (0x400000+0x2199a) [0x42199a]
> 13: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x7f6b5bff1ccd]
> 14: /usr/X11/bin/X (0x400000+0x21549) [0x421549]
> Segmentation fault at address 0x7f6b58670000
>
>
>
>
> commit d6b7f96fde1add92fd11f5a75869ae6fc688bf77
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Sat Mar 6 15:49:04 2010 +0000
>
>     Fill alpha on xrgb images.
>
>     Do not try to fixup the alpha in the ff/shaders as this has the
>     side-effect of overriding the alpha value of the border color, causing
>     images to be padded with black rather than transparent. This can
>     generate large and obnoxious visual artefacts.
>
>     Fixes:
>
>       Bug 17933 - x8r8g8b8 doesn't sample alpha=0 outside surface bounds
>       http://bugs.freedesktop.org/show_bug.cgi?id=17933
>
>     and many related cairo test suite failures.
>
>     Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>
>
>
> Thanks,
> Jeff.
>
>
>
>
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