** Changed in: gnome-shell (Ubuntu)
Assignee: (unassigned) => Marco Trevisan (Treviño) (3v1n0)
** Also affects: gnome-shell (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: gnome-shell (Ubuntu Focal)
Status: New => Fix Committed
** Changed in: gnome-shell (Ubuntu Focal)
Importance: Undecided => Low
** Changed in: gnome-shell (Ubuntu Focal)
Assignee: (unassigned) => Marco Trevisan (Treviño) (3v1n0)
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https://bugs.launchpad.net/bugs/1877760
Title:
gnome-shell crashed with SIGSEGV in __strncmp_avx2() from
g_str_has_prefix() from _st_theme_node_ensure_background() from
st_theme_node_paint_equal
Status in GNOME Shell:
Unknown
Status in gnome-shell package in Ubuntu:
Fix Committed
Status in gnome-shell source package in Focal:
Fix Committed
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/ed05979081de9b66eac4a9eaa25e51fac88e43a3
[ Regression potential ]
Stylesheet memory could be leaked
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Started the computer from suspend. Started Gmail from Dash to Panel.
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
CurrentDesktop: ubuntu:GNOME
Date: Sat May 9 18:30:48 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: 0x7fe9fdcc3e41 <__strncmp_avx2+49>: vmovdqu
(%rdi),%ymm1
PC (0x7fe9fdcc3e41) ok
source "(%rdi)" (0xf00000250) not located in a known VMA region (needed
readable region)!
destination "%ymm1" ok
SegvReason: reading unknown VMA
Signal: 11SourcePackage: gnome-shell
StacktraceTop:
__strncmp_avx2 () at ../sysdeps/x86_64/multiarch/strcmp-avx2.S:101
g_str_has_prefix () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
_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
Title: gnome-shell crashed with SIGSEGV in __strncmp_avx2()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
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