gnome-shell crashed with SIGSEGV in g_type_check_instance_cast → st_label_get_text → append_actor_text → st_describe_actor → ffi_call_unix64 ()

[Cristian Aravena Romero]

https://errors.ubuntu.com/problem/af59d8248a84adcefb2be929a34d7b9bbfe831c2
https://errors.ubuntu.com/problem/329cefc225879c7c018b3492d959b2accf4a03c1

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Hello,

I searched in gnome-shell synaptic, and the monitor froze.

Regards.
--
Cristian

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.26.2-0ubuntu2
ProcVersionSignature: Ubuntu 4.13.0-30.33-generic 4.13.13
Uname: Linux 4.13.0-30-generic x86_64
ApportVersion: 2.20.8-0ubuntu6
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 25 20:13:35 2018
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
ExecutableTimestamp: 1512819693
GsettingsChanges:

InstallationDate: Installed on 2017-10-13 (104 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
ProcCmdline: /usr/bin/gnome-shell
ProcCwd: /home/caravena
SegvAnalysis:
 Segfault happened at: 0x7fd3ca82ce0d <g_type_check_instance_cast+77>: movzbl 0x16(%rax),%edx
 PC (0x7fd3ca82ce0d) ok
 source "0x16(%rax)" (0xd100000008000016) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 g_type_check_instance_cast () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 st_label_get_text () at /usr/lib/gnome-shell/libst-1.0.so
 () at /usr/lib/gnome-shell/libst-1.0.so
 st_describe_actor () at /usr/lib/gnome-shell/libst-1.0.so
 ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip libvirt lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 g_type_check_instance_cast (type_instance=0x556a0956f8a0, iface_type=93913860973376) at ../../../../gobject/gtype.c:4058
 st_label_get_text (label=0x556a0c13aa70) at ../src/st/st-label.c:313
 append_actor_text (desc=0x556a0b693400, actor=0x556a0c13aa70) at ../src/st/st-widget.c:2178
 st_describe_actor (actor=0x556a0c13aa70) at ../src/st/st-widget.c:2243
 ffi_call_unix64 () at ../src/x86/unix64.S:76

[Cristian Aravena Romero (caravena)]

https://gitlab.gnome.org/GNOME/gnome-shell/issues/5

[Jean-Baptiste Lallement (jibel)]

Thanks for your report. Do you have any step to reproduce this crash?

[Daniel van Vugt (vanvugt)]

Also tracking in:
https://errors.ubuntu.com/problem/af59d8248a84adcefb2be929a34d7b9bbfe831c2

[Daniel van Vugt (vanvugt)]

And in:
https://errors.ubuntu.com/problem/329cefc225879c7c018b3492d959b2accf4a03c1

[Daniel van Vugt (vanvugt)]

Zero crashes after 18.04 so it must have been fixed somewhere.