Bug 104443

Summary:	i965/brw_bufmgr.c:1104 Segfault when using alt-tab
Product:	Mesa	Reporter:	EoD <EoD>
Component:	Drivers/DRI/i965	Assignee:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Status:	RESOLVED DUPLICATE	QA Contact:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity:	normal
Priority:	medium	CC:	evangelos, freedesktop.org
Version:	17.3
Hardware:	Other
OS:	All
See Also:	https://bugs.freedesktop.org/show_bug.cgi?id=104342 https://bugs.freedesktop.org/show_bug.cgi?id=104301 https://bugs.freedesktop.org/show_bug.cgi?id=104376 https://bugs.freedesktop.org/show_bug.cgi?id=104392
Whiteboard:
i915 platform:		i915 features:
Attachments:	gdb backtrace of the crash

Description EoD 2018-01-02 03:20:15 UTC

Created attachment 136480 [details]
gdb backtrace of the crash

When playing videos with mpv and using Alt+Tab to switch between windows, mpv crashes regularly with the following segfault: 

> Thread 8 "mpv/vo" received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7fffd9a50700 (LWP 14333)]
> brw_bo_get_tiling (bo=0x55, tiling_mode=0x7fffd9a4f098, swizzle_mode=0x7fffd9a4f09c)
>    at /usr/src/debug/media-libs/mesa-17.3.1/mesa-17.3.1/src/mesa/drivers/dri/i965/brw_bufmgr.c:1104
> 
> 1104	   *tiling_mode = bo->tiling_mode;

This might be a duplicate of bug 104342

Comment 1 vadym 2018-01-04 11:31:17 UTC

Hello EoD, 

Suggest please what platform and distro are you using ?

Comment 2 Evangelos Foutras 2018-01-11 06:03:10 UTC

The patch from bug 104214 should fix this. I had the same issue with mpv and at some point also got the same backtrace.

*** This bug has been marked as a duplicate of bug 104214 ***

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