modem-manager crashed with SIGSEGV in smc_notify_alloc()

Bug #1052717 reported by Tomas Cassidy
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
glib2.0 (Ubuntu)
Expired
Medium
Unassigned

Bug Description

This crash occurred after I unplugged my USB modem device from the computer.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: modemmanager 0.6.0.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-14.19-generic 3.5.3
Uname: Linux 3.5.0-14-generic x86_64
ApportVersion: 2.5.2-0ubuntu1
Architecture: amd64
Date: Wed Sep 19 10:00:07 2012
ExecutablePath: /usr/sbin/modem-manager
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcCmdline: /usr/sbin/modem-manager
ProcEnviron:
 PATH=(custom, no user)
 TERM=linux
SegvAnalysis:
 Segfault happened at: 0x7fcadf6f195f <g_slice_alloc+223>: mov (%rbx),%rax
 PC (0x7fcadf6f195f) ok
 source "(%rbx)" (0x400000004) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: modemmanager
StacktraceTop:
 g_slice_alloc () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_slice_alloc0 () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: modem-manager crashed with SIGSEGV in g_slice_alloc()
UpgradeStatus: Upgraded to quantal on 2012-09-10 (8 days ago)
UserGroups:

Revision history for this message
Tomas Cassidy (tomas-cassidy) wrote :
Revision history for this message
Apport retracing service (apport) wrote :

StacktraceTop:
 smc_notify_alloc (size=<optimized out>, pointer=<optimized out>) at /build/buildd/glib2.0-2.33.14/./glib/gslice.c:1466
 g_slice_alloc (mem_size=80) at /build/buildd/glib2.0-2.33.14/./glib/gslice.c:1005
 magazine_cache_pop_magazine (countp=0x58, ix=4294967295) at /build/buildd/glib2.0-2.33.14/./glib/gslice.c:722
 thread_memory_magazine1_reload (ix=4294967295, tmem=<optimized out>) at /build/buildd/glib2.0-2.33.14/./glib/gslice.c:794
 g_slice_alloc (mem_size=0) at /build/buildd/glib2.0-2.33.14/./glib/gslice.c:992

Revision history for this message
Apport retracing service (apport) wrote : Stacktrace.txt
Revision history for this message
Apport retracing service (apport) wrote : StacktraceSource.txt
Revision history for this message
Apport retracing service (apport) wrote : ThreadStacktrace.txt
Changed in modemmanager (Ubuntu):
importance: Undecided → Medium
summary: - modem-manager crashed with SIGSEGV in g_slice_alloc()
+ modem-manager crashed with SIGSEGV in smc_notify_alloc()
tags: removed: need-amd64-retrace
visibility: private → public
Revision history for this message
Mathieu Trudel-Lapierre (cyphermox) wrote :

I'm not sure what to make of this; all indicates there was a crash deep inside Glib, that's not really something directly affecting modemmanager, so I've reassigned this to the 'glib2.0' source package.

Are you still able to reproduce this crash? There has been changes to glib since this bug was reported, so this might have been fixed already.

affects: modemmanager (Ubuntu) → glib2.0 (Ubuntu)
Changed in glib2.0 (Ubuntu):
status: New → Incomplete
Revision history for this message
Tomas Cassidy (tomas-cassidy) wrote :

I can't reproduce this bug. Haven't seen it happen again after the first crash.

Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for glib2.0 (Ubuntu) because there has been no activity for 60 days.]

Changed in glib2.0 (Ubuntu):
status: Incomplete → Expired
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