Ubuntu
unity-greeter package

unity-greeter crashed with SIGSEGV in lightdm_layout_get_name()

Bug #1215541 reported by Till Kamppeter on 2013-08-22

34

This bug affects 5 people

Affects		Status	Importance	Assigned to	Milestone
	unity-greeter (Ubuntu)	Confirmed	Medium	Unassigned

Bug Description

Happened right after login.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity-greeter 13.10.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-3.7-generic 3.11.0-rc6
Uname: Linux 3.11.0-3-generic x86_64
ApportVersion: 2.12.1-0ubuntu2
Architecture: amd64
Date: Thu Aug 22 18:20:41 2013
ExecutablePath: /usr/sbin/unity-greeter
InstallationDate: Installed on 2013-06-05 (78 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130605)
MarkForUpload: True
ProcCmdline: /usr/sbin/unity-greeter
SegvAnalysis:
Segfault happened at: 0x7fe3f77e44f6 <lightdm_layout_get_name+22>: cmp %rax,(%rdx)
PC (0x7fe3f77e44f6) ok
source "%rax" ok
destination "(%rdx)" (0xaaaaaaaaaaaaaaaa) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity-greeter
StacktraceTop:
lightdm_layout_get_name () from /usr/lib/liblightdm-gobject-1.so.0
lightdm_get_layout () from /usr/lib/liblightdm-gobject-1.so.0
?? ()
?? ()
?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-greeter crashed with SIGSEGV in lightdm_layout_get_name()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

Tags:

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2013-08-22:

#1

Dependencies.txt Edit (20.3 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (291 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (47.5 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (799 bytes, text/plain; charset="utf-8")
Registers.txt Edit (793 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (2.6 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (7.9 KiB, text/plain; charset="utf-8")

information type:	Private → Public Security
information type:	Public Security → Public

Revision history for this message

Apport retracing service (apport) wrote on 2013-08-22:

#2

StacktraceTop:
lightdm_layout_get_name (layout=0x2034620) at layout.c:211
lightdm_get_layout () at layout.c:187
menu_bar_set_layouts (self=0x1ef31d0, layouts=0x0) at menubar.c:513
_user_list___lambda28_ (self=0x202c500) at user-list.c:7017
__user_list___lambda28__greeter_list_entry_displayed_done (_sender=<optimized out>, self=0x202c500) at user-list.c:7034

Revision history for this message

Apport retracing service (apport) wrote on 2013-08-22: Stacktrace.txt

#3

Stacktrace.txt Edit (13.2 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2013-08-22: StacktraceSource.txt

#4

StacktraceSource.txt Edit (7.8 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2013-08-22: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (21.0 KiB, text/plain)

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

Revision history for this message

Launchpad Janitor (janitor) wrote on 2013-08-28:

#6

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

Changed in unity-greeter (Ubuntu):
status:	New → Confirmed

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Bug #1215546

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