** Changed in: gnome-shell
Status: Unknown => Fix Released
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https://bugs.launchpad.net/bugs/1877774
Title:
gnome-shell crashed with SIGSEGV in _st_theme_node_ensure_background()
from st_theme_node_paint_equal() from st_widget_recompute_style() from
st_widget_style_changed() [when locking the screen] [usually due to
dash-to-panel]
Status in GNOME Shell:
Fix Released
Status in gnome-shell package in Ubuntu:
Fix Released
Status in gnome-shell source package in Focal:
Fix Released
Bug description:
[ Impact ]
GNOME shell crashes on extensions loading / updates
[ Test case ]
- No clear test case, normally may happen during screen locking/unlocking
- But crashes should be monitored at
https://errors.ubuntu.com/problem/4127e7e714fd28c090da0220de2ff06e71274eda
[ Regression potential ]
Stylesheet memory could be leaked
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Seems to be reproducible
Suspend the computer
Start the computer from suspend
Start chrome gmail.
Has happened two times
ProblemType: CrashDistroRelease: Ubuntu 20.10
Package: gnome-shell 3.36.2-1ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
Uname: Linux 5.4.0-28-generic x86_64
ApportVersion: 2.20.11-0ubuntu33
Architecture: amd64
CasperMD5CheckResult: skip
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Sat May 9 20:00:47 2020
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2020-04-16 (23 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200415.2)
ProcCmdline: /usr/bin/gnome-shell
RelatedPackageVersions: mutter-common 3.36.2-1ubuntu1
SegvAnalysis:
Segfault happened at: 0x7fe1b40c4252 <_st_theme_node_ensure_background+226>:
mov (%rax),%r12
PC (0x7fe1b40c4252) ok
source "(%rax)" (0x00000000) not located in a known VMA region (needed
readable region)!
destination "%r12" ok
SegvReason: reading NULL VMA
Signal: 11SourcePackage: gnome-shell
StacktraceTop:
_st_theme_node_ensure_background () from /usr/lib/gnome-shell/libst-1.0.so
st_theme_node_paint_equal () from /usr/lib/gnome-shell/libst-1.0.so
?? () from /usr/lib/gnome-shell/libst-1.0.so
st_widget_style_changed () from /usr/lib/gnome-shell/libst-1.0.so
?? () from /usr/lib/gnome-shell/libst-1.0.so
Title: gnome-shell crashed with SIGSEGV in _st_theme_node_ensure_background()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
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