This part looks suspicious:
#43 0x00007f6a08e3c36e in _cogl_pipeline_free (pipeline=0x0) at
../cogl/cogl/cogl-pipeline.c:386
__func__ = <optimized out>
#44 _cogl_object_pipeline_indirect_free (obj=0x0) at
../cogl/cogl/cogl-pipeline.c:69
No locals.
#45 0x00007f6a09457957 in meta_shaped_texture_reset_pipelines
(stex=0x559a2c114540) at ../src/compositor/meta-shaped-texture.c:242
_pp = 0x559a2c114578
_ptr = <optimized out>
#46 meta_shaped_texture_dispose (object=0x559a2c114540) at
../src/compositor/meta-shaped-texture.c:261
stex = 0x559a2c114540
And the same in bug 1943406.
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https://bugs.launchpad.net/bugs/1944054
Title:
[vmwgfx] gnome-shell crashed with SIGSEGV in list_del() from
destroy_buffer_locked() from release_expired_buffers_locked() from
pb_cache_add_buffer()
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