[Bug 1284483] [NEW] __GI___pthread_mutex_lock()

[Paul Oppenheim]

Public bug reported:

Running Trusty Alpha as VirtualBox Guest VM w 3D acceleration, many apps
SIGSEGV with this in their stack trace. Previously was hitting gnome-
shell every login (#1281302), now firefox is getting a turn as the app
of blame.

Gnome-shell devs:
https://bugzilla.gnome.org/show_bug.cgi?id=724928

"Seems to be a VirtualBox bug to me."

How would that be, if the segfault is appearing in the client app's
pthread locking?

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: firefox 25.0+build3-0ubuntu0.13.10.1
ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4
Uname: Linux 3.13.0-12-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  person     1758 F.... pulseaudio
BuildID: 20131028112446
Channel: Unavailable
CrashCounter: 1
CurrentDmesg:
 [  821.150259] atkbd_interrupt: 115 callbacks suppressed
 [  821.150270] atkbd serio0: Spurious NAK on isa0060/serio0. Some program might be trying to access hardware directly.
 [ 1154.314291] Sync[5417]: segfault at 20d8 ip 00007fd67d3db414 sp 00007fd67dee3e40 error 4 in libpthread-2.18.so[7fd67d3d1000+19000]
Date: Mon Feb 24 22:34:46 2014
ExecutablePath: /usr/lib/firefox/firefox
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2014-02-17 (7 days ago)
InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140121.1)
IpRoute:
 default via 10.0.2.2 dev eth0  proto static 
 10.0.2.0/24 dev eth0  proto kernel  scope link  src 10.0.2.15  metric 1
IwConfig:
 eth0      no wireless extensions.
 
 lo        no wireless extensions.
Plugins:
 iTunes Application Detector - /usr/lib/mozilla/plugins/librhythmbox-itms-detection-plugin.so (rhythmbox-mozilla)
 Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
PrefSources:
 prefs.js
 /usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/ubufox at ubuntu.com/defaults/preferences/001ubuntu-gnome-mods.js
ProcCmdline: /usr/lib/firefox/firefox https://bugs.launchpad.net/bugs/1266608
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=25.0/20131028112446 (In use)
RelatedPackageVersions:
 rhythmbox-mozilla 3.0.1-1ubuntu10
 gnome-shell       3.10.4-0ubuntu1
RfKill:
 
RunningIncompatibleAddons: False
SegvAnalysis:
 Segfault happened at: 0x7fd67d3db414 <__GI___pthread_mutex_lock+4>:	mov    0x10(%rdi),%esi
 PC (0x7fd67d3db414) ok
 source "0x10(%rdi)" (0x000020d8) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: firefox
StacktraceTop:
 __GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:66
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
 start_thread (arg=0x7fd67dee4700) at pthread_create.c:312
Title: firefox crashed with SIGSEGV in __GI___pthread_mutex_lock()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.board.name: VirtualBox
dmi.board.vendor: Oracle Corporation
dmi.board.version: 1.2
dmi.chassis.type: 1
dmi.chassis.vendor: Oracle Corporation
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-crash need-amd64-retrace trusty

** Information type changed from Private to Public

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Title:
  __GI___pthread_mutex_lock()

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