compiz crashed with SIGSEGV in malloc_consolidate()

[Ertan Günay]

today, this one is third Compiz error.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: compiz-core 1:0.9.12.2+16.04.20160318-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
Uname: Linux 4.4.0-15-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CrashCounter: 1
CurrentDesktop: Unity
Date: Tue Mar 29 15:41:32 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 5.0.16, 4.4.0-14-generic, x86_64: installed
 virtualbox, 5.0.16, 4.4.0-15-generic, x86_64: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] R520 GL [FireGL V7200] [1002:7104] (prog-if 00 [VGA controller])
   Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] R520 GL [FireGL V7200] [1002:0b32]
   Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] R520 GL [FireGL V7200] (Secondary) [1002:0b33]
InstallationDate: Installed on 2016-02-24 (33 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160224)
MachineType: Hewlett-Packard HP xw9400 Workstation
ProcCmdline: compiz
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=f57f2a94-225d-470e-b0a0-f4b2d63b8aca ro quiet splash vt.handoff=7
Signal: 11
SourcePackage: compiz
StacktraceTop:
 malloc_consolidate (av=av@entry=0x7f833749fb20 <main_arena>) at malloc.c:4184
 _int_malloc (av=av@entry=0x7f833749fb20 <main_arena>, bytes=bytes@entry=4152) at malloc.c:3451
 __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at malloc.c:3237
 g_malloc0 () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0
Title: compiz crashed with SIGSEGV in malloc_consolidate()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip fax floppy lpadmin netdev plugdev sambashare scanner sudo tape vboxusers video
dmi.bios.date: 12/10/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786D6 v04.03
dmi.board.asset.tag: 2UA813090V
dmi.board.name: 0A1Ch
dmi.board.vendor: Hewlett-Packard
dmi.board.version: D
dmi.chassis.asset.tag: 2UA813090V
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr786D6v04.03:bd12/10/2009:svnHewlett-Packard:pnHPxw9400Workstation:pvr:rvnHewlett-Packard:rn0A1Ch:rvrD:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP xw9400 Workstation
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.2+16.04.20160318-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.1-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160218-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Tue Mar 29 10:54:43 2016
xserver.configfile: None
xserver.errors: No devices detected.
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.1-1ubuntu4
xserver.video_driver: radeon

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1542796, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

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