[Bug 1765686] [NEW] gnome-shell crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node()

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https://errors.ubuntu.com/problem/87e4666825764619cb47f3837f871d88d65dd606

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It seems to be reproduceable, if I load a wider filearea with different
filesystems (ntfs and ext4)

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
CurrentDesktop: GNOME-Greeter:GNOME
Date: Fri Apr 20 12:36:08 2018
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
GsettingsChanges:

InstallationDate: Installed on 2018-03-23 (27 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180321)
ProcCmdline: /usr/bin/gnome-shell
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/false
SegvAnalysis:
 Segfault happened at: 0x7fd13cdc0430 <g_str_hash>:	movsbl (%rdi),%edx
 PC (0x7fd13cdc0430) ok
 source "(%rdi)" (0x000000ca) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 g_str_hash () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_hash_table_lookup () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: gnome-shell crashed with SIGSEGV in g_str_hash()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

** Affects: glib2.0 (Ubuntu)
     Importance: Undecided
     Assignee: Marco Trevisan (Treviño) (3v1n0)
         Status: In Progress

** Affects: gnome-shell (Ubuntu)
     Importance: Medium
         Status: Triaged


** Tags: amd64 apport-crash bionic
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gnome-shell crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node()
https://bugs.launchpad.net/bugs/1765686
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