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
Suggest please what platform and distro are you using ?
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 ***