I sent patches to the upstream upower bug that improve the behaviour
when connecting to upowerd on D-Bus fails. However, libupower already
behaved in the current way forever, so this is nothing new in Xenial.
Thus the patches will also only help so far: they should avoid the
segfault, but you'll still get invalid data presented in the UI as the
client/the library never reconnects to upowerd.
The root cause here is that upowerd takes very long to start as it gets
blocked reading some kernel attributes. This needs to be fixed in the
kernel to truly solve this bug.
** Changed in: upower (Ubuntu Yakkety)
Status: Confirmed => In Progress
** Changed in: upower (Ubuntu Yakkety)
Assignee: (unassigned) => Martin Pitt (pitti)
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https://bugs.launchpad.net/bugs/1546641
Title:
unity-settings-daemon crashed with SIGSEGV in
up_exported_daemon_get_lid_is_closed()
Status in Upower:
Unknown
Status in unity-settings-daemon package in Ubuntu:
Triaged
Status in upower package in Ubuntu:
In Progress
Status in unity-settings-daemon source package in Xenial:
Triaged
Status in upower source package in Xenial:
Confirmed
Status in unity-settings-daemon source package in Yakkety:
Triaged
Status in upower source package in Yakkety:
In Progress
Bug description:
https://errors.ubuntu.com/problem/8ca9c548fc4e2fc1d4bf827bbd85c72df59313f8
Ubuntu 16.04 crashes immediately on login. Default settings not
applied and appearance is a bit ugly (incorrect font hinting, in-
window menus etc).
---
ProblemType: Crash
DistroRelease: Ubuntu 16.04
ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1
Uname: Linux 4.4.0-6-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CrashCounter: 1
Date: Wed Feb 17 13:52:13 2016
ExecutablePath: /usr/lib/unity-settings-daemon/unity-settings-daemon
InstallationDate: Installed on 2016-02-08 (8 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160205)
ProcCmdline: /usr/lib/unity-settings-daemon/unity-settings-daemon
ProcEnviron:
LANGUAGE=pt_BR:pt:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=pt_BR.UTF-8
SHELL=/bin/false
SegvAnalysis:
Segfault happened at: 0x3aae60fe69 <up_exported_daemon_get_lid_is_closed+9>:
mov (%rbx),%rdi
PC (0x3aae60fe69) ok
source "(%rbx)" (0x00000000) not located in a known VMA region (needed
readable region)!
destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-settings-daemon
StacktraceTop:
up_exported_daemon_get_lid_is_closed () from
/usr/lib/x86_64-linux-gnu/libupower-glib.so.3
gsd_power_manager_start () from
/usr/lib/unity-settings-daemon-1.0/libpower.so
?? () from /usr/lib/unity-settings-daemon-1.0/libpower.so
gnome_settings_plugin_info_activate ()
?? ()
Title: unity-settings-daemon crashed with SIGSEGV in
up_exported_daemon_get_lid_is_closed()
UpgradeStatus: No upgrade log present (probably fresh install)
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