[vmwgfx] gnome-shell crashed with SIGSEGV in list_del() from destroy_buffer_locked() from release_expired_buffers_locked() from pb_cache_add_buffer()

[Adrian Alves]

https://errors.ubuntu.com/problem/6806a5df1c7ea13bfc98612aea6b83d9a93f1603

---

this happens after start ubuntu21.10 during the login process of gnome

ProblemType: Crash
DistroRelease: Ubuntu 21.10
Package: gnome-shell 40.2-1ubuntu6
ProcVersionSignature: Ubuntu 5.13.0-16.16-generic 5.13.13
Uname: Linux 5.13.0-16-generic x86_64
ApportVersion: 2.20.11-0ubuntu69
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 18 15:35:16 2021
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
GsettingsChanges:
 b'org.gnome.shell' b'favorite-apps' redacted by apport
 b'org.gnome.shell' b'welcome-dialog-last-shown-version' b"'40.2'"
 b'org.gnome.desktop.input-sources' b'sources' b"[('xkb', 'us')]"
 b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
 b'org.gnome.desktop.privacy' b'report-technical-problems' b'true'
InstallationDate: Installed on 2021-09-15 (3 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Alpha amd64 (20210914)
ProcCmdline: /usr/bin/gnome-shell
RelatedPackageVersions: mutter-common 40.2.1-1ubuntu1
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vmwgfx_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vmwgfx_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vmwgfx_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vmwgfx_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vmwgfx_dri.so
Title: gnome-shell crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
separator:

[Apport retracing service (apport)]

StacktraceTop:
 list_del (item=0x564e30fc6040) at ../src/util/list.h:96
 destroy_buffer_locked (entry=0x564e30fc6040) at ../src/gallium/auxiliary/pipebuffer/pb_cache.c:45
 release_expired_buffers_locked (current_time=418514337, cache=0x564e30faf800) at ../src/gallium/auxiliary/pipebuffer/pb_cache.c:71
 pb_cache_add_buffer (entry=0x564e36c9cad8) at ../src/gallium/auxiliary/pipebuffer/pb_cache.c:96
 pb_destroy (buf=<optimized out>, winsys=0x0) at ../src/gallium/auxiliary/pipebuffer/pb_buffer.h:259

[Daniel van Vugt (vanvugt)]

This looks closely-related to bug 1943406, but not exactly the same.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Tracking in:

https://errors.ubuntu.com/problem/6806a5df1c7ea13bfc98612aea6b83d9a93f1603

[Daniel van Vugt (vanvugt)]

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.

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-shell - 40.5-1ubuntu2

---------------
gnome-shell (40.5-1ubuntu2) impish; urgency=medium

  [ Daniel van Vugt ]
  * debian/patches: Avoid full meta context finalization.
    To workaround (prevent) shutdown crashes (LP: #1936826, #1942031, #1942121,
    LP: #1943406, #1944054, #1945010, #1945116, #1944388)

 -- Marco Trevisan (Treviño) <email address hidden> Tue, 05 Oct 2021 04:52:11 +0200