Ubuntu
indicator-appmenu package

unity-panel-service crashed with SIGSEGV in g_variant_is_trusted()

Bug #953479 reported by Sascha on 2012-03-12

196

This bug affects 34 people

Affects		Status	Importance	Assigned to	Milestone
	Application Menu Indicator	Fix Released	High	Charles Kerr	Application Menu Indicator 0.3.95
	indicator-appmenu (Ubuntu)	Fix Released	High	Unassigned

Bug Description

1) Ubuntu 12.04 LTS Beta 1 (nightly build)

2) indicator-appmenu: Installiert: 0.3.92-0ubuntu1

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: indicator-appmenu 0.3.92-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic i686
ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
Date: Mon Mar 12 23:05:56 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/unity/unity-panel-service
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcCmdline: /usr/lib/unity/unity-panel-service
SegvAnalysis:
Segfault happened at: 0xbfbd54: testb $0x4,0x10(%eax)
PC (0x00bfbd54) ok
source "$0x4" ok
destination "0x10(%eax)" (0x00000010) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: indicator-appmenu
StacktraceTop:
?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
g_variant_new_tuple () from /lib/i386-linux-gnu/libglib-2.0.so.0
?? () from /usr/lib/indicators3/7/libappmenu.so
?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_variant_new_tuple()
UpgradeStatus: Upgraded to precise on 2012-03-10 (2 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare users

Tags:

Related branches

lp:indicator-appmenu/0.4

lp:~charlesk/indicator-appmenu/fix-953479

Merged into lp:indicator-appmenu/0.4 at revision 180

Lars Karlitski (community): Approve on 2012-03-16

Allison Karlitskaya (community): Approve on 2012-03-16

lp:ubuntu/precise/indicator-appmenu

Revision history for this message

Sascha (skbierm-deactivatedaccount) wrote on 2012-03-12:

Dependencies.txt Edit (2.7 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (737 bytes, text/plain; charset="utf-8")
ProcEnviron.txt Edit (118 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (30.8 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (811 bytes, text/plain; charset="utf-8")
Registers.txt Edit (447 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (1000 bytes, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (3.9 KiB, text/plain; charset="utf-8")
XsessionErrors.txt Edit (155.1 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-12:

StacktraceTop:
g_variant_is_trusted (value=0x0) at /build/buildd/glib2.0-2.31.20/./glib/gvariant-core.c:604
g_variant_new_tuple (children=0xbfd0113c, n_children=1) at /build/buildd/glib2.0-2.31.20/./glib/gvariant.c:878
?? () from /tmp/tmpNPJYg3/usr/lib/indicators3/7/libappmenu.so
call_in_idle_cb (user_data=0x95392f0) at /build/buildd/glib2.0-2.31.20/./gio/gdbusconnection.c:4698
g_idle_dispatch (source=0xb6004118, callback=0x7ee680 <call_in_idle_cb>, user_data=0x95392f0) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:4629

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-12: Stacktrace.txt

Stacktrace.txt Edit (2.6 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-12: ThreadStacktrace.txt

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

Changed in indicator-appmenu (Ubuntu):
importance:	Undecided → Medium
summary:	- unity-panel-service crashed with SIGSEGV in g_variant_new_tuple() + unity-panel-service crashed with SIGSEGV in g_variant_is_trusted()
tags:	removed: need-i386-retrace

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-13:

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

Changed in indicator-appmenu (Ubuntu):
status:	New → Confirmed

Sebastien Bacher (seb128) on 2012-03-13

visibility:

private → public

Sebastien Bacher (seb128) on 2012-03-15

Changed in indicator-appmenu (Ubuntu):
importance:	Medium → High

Revision history for this message

Doug McMahon (mc3man) wrote on 2012-03-15:

I think those affected should mention if they've disabled the global menus, either directly or thru a 3rd party app
This bug is 100% repeatable by removing the appmenu* packages but not removing indicator-appmenu

It's also repeatable thru the use of that Usettings package that has come around, maybe other 3rd party apps also?

Not saying this is the only cause for this crash but either of the above is guaranteed to cause this

Revision history for this message

Sascha (skbierm-deactivatedaccount) wrote on 2012-03-15:

No, I haven't disabled the global menus.

Revision history for this message

Charles Kerr (charlesk) wrote on 2012-03-15:

It's unfortunate that https://launchpadlibrarian.net/96566586/ThreadStacktrace.txt doesn't have more debugging information about libappmenu, the backtrace looks like it has unity & glib's debugging symbols, but not libappmenu's.

On the other hand, it crashed in a call to g_variant_new_tuple() from appmenu, and libappmenu only calls g_variant_new_tuple() in one place, at the end of indicator-appmenu.c's get_menus() function.... :)

Changed in indicator-appmenu:
assignee:	nobody → Charles Kerr (charlesk)
importance:	Undecided → High

Charles Kerr (charlesk) on 2012-03-15

Changed in indicator-appmenu:
status:	New → In Progress

Revision history for this message

André Lopes (zipatei) wrote on 2012-03-16:

Here: "unity-panel-service crashed with SIGSEGV in g_variant_new_tuple()"

Revision history for this message

Robin Sheat (eythian) wrote on 2012-03-16:

#10

I had disabled the global menu by setting 'UBUNTU_MENUPROXY=0'. When I removed this, it stopped crashing.

Charles Kerr (charlesk) on 2012-03-17

Changed in indicator-appmenu:
status:	In Progress → Fix Committed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-19:

#11

This bug was fixed in the package indicator-appmenu - 0.3.94-0ubuntu3

---------------
indicator-appmenu (0.3.94-0ubuntu3) precise; urgency=low

* Backport r180 to fix unity-panel-service segfaults when unsetting
the menuproxy variable to disable menus export (lp: #953479, #958048)
-- Sebastien Bacher <email address hidden> Mon, 19 Mar 2012 11:36:10 +0100

Changed in indicator-appmenu (Ubuntu):
status:	Confirmed → Fix Released

Ted Gould (ted) on 2012-03-21

Changed in indicator-appmenu:
milestone:	none → 0.3.95

Ted Gould (ted) on 2012-03-21

Changed in indicator-appmenu:
status:	Fix Committed → Fix Released

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unity-panel-service crashed with SIGSEGV in g_variant_is_trusted()

Bug Description

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indicator-appmenu package