Ubuntu
accountsservice package

Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() / g_hash_table_lookup() from accountsservice 0.6.55-0ubuntu5/6

Bug #1841382 reported by Christian Kirbach on 2019-08-25

106

This bug affects 14 people

Affects		Status	Importance	Assigned to	Milestone
	accountsservice	Fix Released	Unknown	auto-gitlab.freedesktop.org-accountsservice-accountsservice #80
	accountsservice (Ubuntu)	Fix Released	High	Robert Ancell

Bug Description

https://errors.ubuntu.com/problem/3a817938d76d231fdfc8f698392fbf5e3724084f
https://errors.ubuntu.com/problem/597be858df957473f357a9249b002b0e39f42781
https://errors.ubuntu.com/problem/0075340d0eeeef484f9b5d37821d3023970cc12d

I do not know what triggered the crash.

ProblemType: Crash
DistroRelease: Ubuntu 19.10
Package: gnome-shell 3.32.2-2ubuntu1
ProcVersionSignature: Ubuntu 5.2.0-10.11-generic 5.2.4
Uname: Linux 5.2.0-10-generic x86_64
ApportVersion: 2.20.11-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Aug 25 20:45:09 2019
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2019-08-24 (1 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190819)
ProcCmdline: /usr/bin/gnome-shell
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
RelatedPackageVersions: mutter-common 3.32.2+git20190711-2ubuntu1
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
g_str_hash () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
g_hash_table_lookup () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
?? () from /lib/x86_64-linux-gnu/libaccountsservice.so.0
?? ()
?? ()
Title: gnome-shell crashed with SIGSEGV in g_str_hash()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
separator:

See original description

Tags:

Revision history for this message

Christian Kirbach (christian-kirbach-e) wrote on 2019-08-25:

Dependencies.txt Edit (20.6 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (922 bytes, text/plain; charset="utf-8")
GsettingsChanges.txt Edit (529 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (56.6 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.1 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (159.4 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Registers.txt Edit (1017 bytes, text/plain; charset="utf-8")
SegvAnalysis.txt Edit (233 bytes, text/plain; charset="utf-8")
ShellJournal.txt Edit (5.8 KiB, text/plain; charset="utf-8")
Stacktrace.txt Edit (2.3 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (29.0 KiB, text/plain; charset="utf-8")
monitors.xml.txt Edit (542 bytes, text/plain; charset="utf-8")

information type:

Private → Public

Revision history for this message

Apport retracing service (apport) wrote on 2019-08-25:

StacktraceTop:
g_str_hash (v=0x0) at ../../../glib/ghash.c:2324
g_hash_table_lookup_node (hash_return=<synthetic pointer>, key=0x0, hash_table=0x55bece1ac360) at ../../../glib/ghash.c:473
g_hash_table_lookup (hash_table=0x55bece1ac360, key=0x0) at ../../../glib/ghash.c:1509
console_kit_session_default_init (iface=0x0) at src/libaccountsservice/ck-session-generated.c:1128
?? ()

Revision history for this message

Apport retracing service (apport) wrote on 2019-08-25: Stacktrace.txt

Stacktrace.txt Edit (7.2 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2019-08-25: StacktraceSource.txt

StacktraceSource.txt Edit (3.6 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2019-08-25: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (105.9 KiB, text/plain)

Changed in gnome-shell (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-amd64-retrace

Revision history for this message

Christian Kirbach (christian-kirbach-e) wrote on 2019-08-25: Re: gnome-shell crashed with SIGSEGV in g_str_hash()

Looks to me like a problem in libaccountsservice

Daniel van Vugt (vanvugt) on 2019-08-26

summary:

- gnome-shell crashed with SIGSEGV in g_str_hash()
+ gnome-shell crashed with SIGSEGV in g_str_hash() from
+ g_hash_table_lookup_node() from g_hash_table_lookup() from
+ console_kit_session_default_init()

Daniel van Vugt (vanvugt) on 2019-08-26

summary:	- gnome-shell crashed with SIGSEGV in g_str_hash() from + Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() from g_hash_table_lookup() from console_kit_session_default_init()
affects:	gnome-shell (Ubuntu) → accountsservice (Ubuntu)
no longer affects:	gnome-settings-daemon (Ubuntu)
summary:	Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() from g_hash_table_lookup() from - console_kit_session_default_init() + console_kit_session_default_init() with accountsservice 0.6.55-0ubuntu5

Revision history for this message

Launchpad Janitor (janitor) wrote on 2019-09-02: Re: Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() from g_hash_table_lookup() from console_kit_session_default_init() with accountsservice 0.6.55-0ubuntu5

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in accountsservice (Ubuntu):
status:	New → Confirmed

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2019-09-04: Re: Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() / g_hash_table_lookup() from accountsservice

Also tracking in:
https://errors.ubuntu.com/problem/3a817938d76d231fdfc8f698392fbf5e3724084f

summary:	Various programs crashed with SIGSEGV in g_str_hash() from - g_hash_table_lookup_node() from g_hash_table_lookup() from - console_kit_session_default_init() with accountsservice 0.6.55-0ubuntu5 + g_hash_table_lookup_node() / g_hash_table_lookup() from accountsservice
description:	updated
description:	updated

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2019-09-04:

And:
https://errors.ubuntu.com/problem/597be858df957473f357a9249b002b0e39f42781

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2019-09-04:

#10

And by the looks of it:
https://errors.ubuntu.com/problem/0075340d0eeeef484f9b5d37821d3023970cc12d

description:	updated
Changed in accountsservice (Ubuntu):
importance:	Medium → High
tags:	added: regression-release
summary:	Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() / g_hash_table_lookup() from accountsservice + 0.6.55-0ubuntu5
summary:	Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() / g_hash_table_lookup() from accountsservice - 0.6.55-0ubuntu5 + 0.6.55-0ubuntu5/6

Robert Ancell (robert-ancell) on 2019-09-04

Changed in accountsservice (Ubuntu):
assignee:	nobody → Robert Ancell (robert-ancell)

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2019-09-04:

#11

If anyone experiences this crash repeatedly then please help us to debug it by downgrading to the last known non-crashing version:

https://launchpad.net/ubuntu/+source/accountsservice/0.6.55-0ubuntu4 (click amd64)

and tell us if that avoids the crash. If that still crashes then try:

https://launchpad.net/ubuntu/+source/accountsservice/0.6.55-0ubuntu3

and so on.

tags:

added: rls-ee-incoming

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2019-09-04:

#12

Maybe not a regression. Seems some older releases have been seeing these crashes too. It just suddenly became more common this week.

tags:

removed: regression-release

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2019-09-04:

#13

It looks like it's crashing in this code:

username = act_user_get_user_name (user);
if (g_hash_table_lookup (priv->system_users_by_name, username) != NULL) {

and username is probably NULL.

A possible cause of this is the user object for some reason might not have a DBus proxy backing it.

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2019-09-05:

#14

If the above theory is correct then this commit caused the bug:
https://gitlab.freedesktop.org/accountsservice/accountsservice/commit/9b4108755a6e1f5f04d80fef92dd3f81423857ad

This commit came when we migrated from 0.6.45 to 0.6.50, which explains why this is being seen in disco and eoan.

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2019-09-05:

#15

Upstream bug report opened: https://gitlab.freedesktop.org/accountsservice/accountsservice/issues/80

Bug Watch Updater (bug-watch-updater) on 2019-09-05

Changed in accountsservice:
status:	Unknown → New

Revision history for this message

Robert Ancell (robert-ancell) wrote on 2019-09-06:

#16

The main issue is when I updated to 0.6.55 the new Meson based build systemd didn't build with systemd support by default. So I've uploaded a build with this enabled. There may still be an underlying issue, but this should fix the eoan issues.

Changed in accountsservice (Ubuntu):
status:	Confirmed → Fix Committed

Bug Watch Updater (bug-watch-updater) on 2019-09-06

Changed in accountsservice:
status:	New → Fix Released

Revision history for this message

Launchpad Janitor (janitor) wrote on 2019-09-06:

#17

This bug was fixed in the package accountsservice - 0.6.55-0ubuntu8

---------------
accountsservice (0.6.55-0ubuntu8) eoan; urgency=medium

  * debian/rules:
    - Compile with -Dsystemd=true to fix libaccountsservice not working properly
      (LP: #1841382)

-- Robert Ancell <email address hidden> Fri, 06 Sep 2019 15:33:47 +1200

Changed in accountsservice (Ubuntu):
status:	Fix Committed → Fix Released

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2019-09-30:

#18

Still tracking similar crashes in bug 1843982 now.

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Ubuntuaccountsservice package

Various programs crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup_node() / g_hash_table_lookup() from accountsservice 0.6.55-0ubuntu5/6

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accountsservice package