Ubuntu
ams package

ams.real crashed with SIGSEGV in jack_port_unregister()

Bug #553366 reported by Alex on 2010-04-01

24

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	ams (Ubuntu)	Fix Released	Medium	Unassigned
	Maverick	Won't Fix	Undecided	Unassigned

Bug Description

Binary package hint: ams

ams.real crashed with SIGSEGV in jack_port_unregister()

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: ams 2.0.1-2
ProcVersionSignature: Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-18-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Apr 1 17:08:22 2010
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/ams/ams.real
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
ProcCmdline: /usr/lib/ams/ams.real --presetpath /usr/share/ams
ProcEnviron:
LANG=it_IT.utf8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x7f5aacb0a28a <jack_port_unregister+26>: mov 0x18(%rsi),%rax
PC (0x7f5aacb0a28a) ok
source "0x18(%rsi)" (0x00000018) not located in a known VMA region (needed readable region)!
destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: ams
StacktraceTop:
jack_port_unregister () from /usr/lib/libjack.so.0
?? ()
?? ()
?? ()
QObjectPrivate::deleteChildren() ()
Title: ams.real crashed with SIGSEGV in jack_port_unregister()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors: (polkit-gnome-authentication-agent-1:1716): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

Tags:

Related branches

lp:ubuntu/natty/ams

Revision history for this message

Alex (alsampognaro) wrote on 2010-04-01:

#1

Dependencies.txt Edit (2.0 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.1 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (99.6 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (791 bytes, text/plain; charset="utf-8")
Registers.txt Edit (768 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (2.8 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (3.7 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2010-04-02:

#2

StacktraceTop:
jack_port_unregister (client=0x0, port=0x0) at port.c:276
SynthData::closeJack (this=0x1702bf0)
SynthData::stopPCM (this=0x1702bf0)
~ModularSynth (this=0x16fe1c0)
QObjectPrivate::deleteChildren (this=0x18c4c30)

Revision history for this message

Apport retracing service (apport) wrote on 2010-04-02: Stacktrace.txt

#3

Stacktrace.txt Edit (12.5 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2010-04-02: ThreadStacktrace.txt

#4

ThreadStacktrace.txt Edit (13.8 KiB, text/plain)

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

Revision history for this message

Alessio Treglia (quadrispro) wrote on 2010-04-14:

#5

Forwarded to upstream:
https://sourceforge.net/tracker/?func=detail&aid=2987034&group_id=69130&atid=523503

visibility:	private → public
Changed in ams (Ubuntu):
status:	New → Triaged

Revision history for this message

Guido Scholz (gscholz) wrote on 2010-10-25:

#6

JACK close crash fix Edit (467 bytes, text/plain)

Hi all,
this bug is fixed in ams CVS but you can also find a short version fix attached as patch file.
Guido

Alessio Treglia (quadrispro) on 2010-10-26

Changed in ams (Ubuntu):
assignee:	nobody → Alessio Treglia (quadrispro)
status:	Triaged → In Progress

Revision history for this message

Alessio Treglia (quadrispro) wrote on 2010-10-26:

#7

Uploaded, thanks!

Changed in ams (Ubuntu):
status:	In Progress → Fix Committed
assignee:	Alessio Treglia (quadrispro) → nobody

Revision history for this message

Launchpad Janitor (janitor) wrote on 2010-10-26:

#8

This bug was fixed in the package ams - 2.0.1-4

---------------
ams (2.0.1-4) unstable; urgency=low

  * debian/patches/03-null_jack_handle.patch:
    - Fix crash when jack_handle is NULL (LP: #553366).
  * Switch to format 3.0 (quilt).
  * debian/control:
    - Update my e-mail address.
    - Bump Standards.
    - Remove "DM-Upload-Allowed: yes" field.
-- Alessio Treglia <email address hidden> Tue, 26 Oct 2010 10:09:29 +0200

Changed in ams (Ubuntu):
status:	Fix Committed → Fix Released

Revision history for this message

Alessio Treglia (quadrispro) wrote on 2010-10-26:

#9

553366-sru.patch Edit (2.0 KiB, text/plain)

Revision history for this message

Alessio Treglia (quadrispro) wrote on 2010-10-26:

#10

ams (2.0.1-3ubuntu0.1) maverick-proposed; urgency=low

* Fix crash when jack_handle is NULL (LP: #553366);
patch backported from natty.

-- Alessio Treglia <email address hidden> Tue, 26 Oct 2010 10:55:56 +0200

Revision history for this message

Rolf Leggewie (r0lf) wrote on 2014-11-21:

#11

Maverick has long since stopped to receive any updates. Marking the Maverick task for this ticket as "Won't Fix".

Changed in ams (Ubuntu Maverick):
status:	New → Won't Fix

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