*** This bug is a duplicate of bug 1759621 ***
Thank you for taking the time to report this crash and helping to make
this software better. This particular crash has already been reported
and is a duplicate of bug #1759621, so is being marked as such. Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Please continue to report any other bugs you may
** Attachment removed: "CoreDump.gz"
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** Attachment removed: "ProcMaps.txt"
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** This bug has been marked a duplicate of bug 1759621
gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
st_label_set_text() from ffi_call_unix64()
** Information type changed from Private to Public
** Tags removed: need-amd64-retrace
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gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
Status in gnome-shell package in Ubuntu:
After a restart, and when Chrome was loading up, and asking for my
Password. No big deal, as it did not even seem to crash - just the
error. Perhaps it was related to the slow startup, which was oddly
after rebooting into windows for a moment the rebooting back into
Ubuntu. Both gave hiccups. And Ubuntu took an extra 10-20 seconds
going to a black wallpaper and flashed a few times and did the NVidia
"Dance" but figured it out. When X loaded it threw the error as
Just trying to help, Mark
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.0-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
Date: Sun Apr 15 20:40:46 2018
InstallationDate: Installed on 2018-04-12 (3 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180409)
PATH=(custom, no user)
Segfault happened at: 0x7f964affcd3d <g_type_check_instance_cast+77>:
PC (0x7f964affcd3d) ok
source "0x16(%rax)" (0x000093aa) not located in a known VMA region (needed
destination "%edx" ok
SegvReason: reading NULL VMA
g_type_check_instance_cast () at
st_label_set_text () at /usr/lib/gnome-shell/libst-1.0.so
ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
() at /usr/lib/libgjs.so.0
Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
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