Ubuntu
glib2.0 package

deja-dup-monitor crashed with SIGSEGV in child_setup(), g_spawn_async_with_pipes()

Bug #901388 reported by Alex Chiang on 2011-12-07

402

This bug affects 56 people

Affects		Status	Importance	Assigned to	Milestone
	GLib	Fix Released	Critical	gnome-bugs #667279
	glib2.0 (Ubuntu)	Fix Released	Medium	Unassigned

Bug Description

No further information. Was simply running precise, did a daily apt-get update ; apt-get dist-upgrade and was presented with this crash report.

Happy to help debug further.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: deja-dup 21.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-3.8-generic 3.2.0-rc4
Uname: Linux 3.2.0-3-generic x86_64
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
Date: Wed Dec 7 12:00:00 2011
ExecutablePath: /usr/lib/deja-dup/deja-dup/deja-dup-monitor
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: /usr/lib/deja-dup/deja-dup/deja-dup-monitor
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x7fa3b70716ab: mov %r9b,(%rax)
PC (0x7fa3b70716ab) ok
source "%r9b" ok
destination "(%rax)" (0x7fa3b6893e40) in non-writable VMA region: 0x7fa3b6889000-0x7fa3b6978000 r-xp /lib/x86_64-linux-gnu/libglib-2.0.so.0.3102.0
SegvReason: writing VMA /lib/x86_64-linux-gnu/libglib-2.0.so.0.3102.0
Signal: 11
SourcePackage: deja-dup
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
g_spawn_async_with_pipes () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
g_spawn_async () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: deja-dup-monitor crashed with SIGSEGV in g_spawn_async_with_pipes()
UpgradeStatus: Upgraded to precise on 2011-11-19 (18 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare

Tags:

Related branches

lp://staging/~ubuntu-desktop/glib/ubuntu

lp://staging/ubuntu/precise/glib2.0

Revision history for this message

Alex Chiang (achiang) wrote on 2011-12-07:

Dependencies.txt Edit (2.7 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (637 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (15.8 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (816 bytes, text/plain; charset="utf-8")
Registers.txt Edit (735 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (2.1 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (2.2 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2011-12-08:

StacktraceTop:
child_setup (user_data=0x7fffb6ac76a0) at /build/buildd/glib2.0-2.31.2/./gio/gdesktopappinfo.c:1150
do_exec (child_err_report_fd=13, stdin_fd=-1, stdout_fd=-1, stderr_fd=-1, working_directory=<optimized out>, argv=0x22315a0, envp=0x222f110, close_descriptors=1, search_path=1, stdout_to_null=0, stderr_to_null=0, child_inherits_stdin=0, file_and_argv_zero=0, child_setup=0x7fa3b7071620 <child_setup>, user_data=0x7fffb6ac76a0) at /build/buildd/glib2.0-2.31.2/./glib/gspawn.c:1129
fork_exec_with_pipes (intermediate_child=1, working_directory=0x0, argv=0x22315a0, envp=0x222f110, close_descriptors=1, search_path=1, stdout_to_null=0, stderr_to_null=0, child_inherits_stdin=0, file_and_argv_zero=0, child_setup=0x7fa3b7071620 <child_setup>, user_data=0x7fffb6ac76a0, child_pid=0x7fffb6ac76cc, standard_input=0x0, standard_output=0x0, standard_error=0x0, error=0x7fffb6ac7788) at /build/buildd/glib2.0-2.31.2/./glib/gspawn.c:1324
g_spawn_async_with_pipes (working_directory=<optimized out>, argv=<optimized out>, envp=<optimized out>, flags=<optimized out>, child_setup=<optimized out>, user_data=<optimized out>, child_pid=0x7fffb6ac76cc, standard_input=0x0, standard_output=0x0, standard_error=0x0, error=0x7fffb6ac7788) at /build/buildd/glib2.0-2.31.2/./glib/gspawn.c:653
g_spawn_async (working_directory=<optimized out>, argv=<optimized out>, envp=<optimized out>, flags=<optimized out>, child_setup=<optimized out>, user_data=<optimized out>, child_pid=0x7fffb6ac76cc, error=0x7fffb6ac7788) at /build/buildd/glib2.0-2.31.2/./glib/gspawn.c:138

Revision history for this message

Apport retracing service (apport) wrote on 2011-12-08: Stacktrace.txt

Stacktrace.txt Edit (7.4 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2011-12-08: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (7.4 KiB, text/plain)

Changed in deja-dup (Ubuntu):
importance:	Undecided → Medium
summary:	- deja-dup-monitor crashed with SIGSEGV in g_spawn_async_with_pipes() + deja-dup-monitor crashed with SIGSEGV in child_setup()
tags:	removed: need-amd64-retrace

Revision history for this message

Launchpad Janitor (janitor) wrote on 2011-12-09: Re: deja-dup-monitor crashed with SIGSEGV in child_setup()

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

Changed in deja-dup (Ubuntu):
status:	New → Confirmed

Jean-Baptiste Lallement (jibel) on 2011-12-13

visibility:

private → public

Revision history for this message

crtm (carlosrtm) wrote on 2011-12-27:

When start Unity, then crash

Revision history for this message

Jani Uusitalo (uusijani) wrote on 2012-01-01:

I suggest that the title be changed to somehow reflect that this is (apparently indirectly) related to g_spawn_async_with_pipes() too. I was about to report a duplicate with the title this bug initially had, and I see others have fallen for it too (Ref: Bug #904899). As it stands, bug reporters have to catch g_spawn_async_with_pipes() from a greyed-out comment made by a bot. I think some confusion could be avoided if Launchpad, when suggesting this, had g_spawn_async_with_pipes() right in the title. How about "deja-dup-monitor crashed with SIGSEGV in child_setup(), g_spawn_async_with_pipes()"?

Anders Kaseorg (andersk) on 2012-01-02

summary:

- deja-dup-monitor crashed with SIGSEGV in child_setup()
+ deja-dup-monitor crashed with SIGSEGV in child_setup(),
+ g_spawn_async_with_pipes()

Revision history for this message

Michael Terry (mterry) wrote on 2012-01-04:

Switching to glib2.0 because that seems to be where the crash is. See upstream bug I filed for a patch.

affects:

deja-dup (Ubuntu) → glib2.0 (Ubuntu)

Bug Watch Updater (bug-watch-updater) on 2012-01-04

Changed in glib:
importance:	Unknown → Critical
status:	Unknown → New

Bug Watch Updater (bug-watch-updater) on 2012-01-05

Changed in glib:
status:	New → Fix Released

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-01-06:

This bug was fixed in the package glib2.0 - 2.31.6-0ubuntu2

---------------
glib2.0 (2.31.6-0ubuntu2) precise; urgency=low

* debian/patches/62_avoid_child_setup_crash.patch:
- Don't crash when spawning some commandline apps (LP: #901388)
-- Michael Terry <email address hidden> Fri, 06 Jan 2012 10:44:17 -0500