compiz crashed with SIGSEGV in malloc_consolidate()

[Adolfo Jayme Barrientos]

I made it crash when attempting to restart Unity with Alt+F2 and executing “unity”. X got killed as well and I was thrown out of my session, losing work. Moments before, I connected to an external classroom screen for a presentation.

ProblemType: Crash
DistroRelease: Ubuntu 17.04
Package: compiz-core 1:0.9.13.1+17.04.20170109-0ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-8.10-generic 4.10.0-rc8
Uname: Linux 4.10.0-8-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity:Unity7
Date: Tue Feb 28 09:18:13 2017
DistUpgraded: Fresh install
DistroCodename: zesty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0c) (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems Atom Processor Z36xxx/Z37xxx Series Graphics & Display [1179:f910]
InstallationDate: Installed on 2017-01-29 (29 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Alpha amd64 (20170118)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 1a40:0101 Terminus Technology Inc. Hub
 Bus 001 Device 002: ID 04f2:b446 Chicony Electronics Co., Ltd
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: TOSHIBA Satellite C55-B
ProcCmdline: /usr/bin/compiz
ProcEnviron:
 LANG=es_MX.UTF-8
 LANGUAGE=es_MX:es
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic.efi.signed root=UUID=9a234aad-f287-4fa4-bd57-596f51120a52 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7fb574ce1e8b <malloc_consolidate+299>: mov 0x8(%r12),%r13
 PC (0x7fb574ce1e8b) ok
 source "0x8(%r12)" (0xd5ad086c8aa0) not located in a known VMA region (needed readable region)!
 destination "%r13" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 malloc_consolidate (av=av@entry=0x7fb575022b00 <main_arena>) at malloc.c:4204
 _int_free (av=0x7fb575022b00 <main_arena>, p=0x55f793a4f210, have_lock=0) at malloc.c:4110
 __GI___libc_free (mem=<optimized out>) at malloc.c:2982
 ?? () from /usr/lib/x86_64-linux-gnu/libdatrie.so.1
 trie_free () from /usr/lib/x86_64-linux-gnu/libdatrie.so.1
Title: compiz crashed with SIGSEGV in malloc_consolidate()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 07/23/2015
dmi.bios.vendor: TOSHIBA
dmi.bios.version: 5.00
dmi.board.asset.tag: *
dmi.board.name: ZBWAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: *
dmi.modalias: dmi:bvnTOSHIBA:bvr5.00:bd07/23/2015:svnTOSHIBA:pnSatelliteC55-B:pvrPSCMLM-00MTM1:rvnTOSHIBA:rnZBWAA:rvr1.00:cvnTOSHIBA:ct10:cvr*:
dmi.product.name: Satellite C55-B
dmi.product.version: PSCMLM-00MTM1
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.13.1+17.04.20170109-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.75-1
version.libgl1-mesa-dri: libgl1-mesa-dri 13.0.4-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 13.0.4-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-1ubuntu9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.8.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160706-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.13-1
xserver.bootTime: Tue Feb 28 09:19:06 2017
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.4-1ubuntu9
xserver.video_driver: modeset

[Apport retracing service (apport)]

StacktraceTop:
 malloc_consolidate (av=av@entry=0x7fb575022b00 <main_arena>) at malloc.c:4204
 _int_free (av=0x7fb575022b00 <main_arena>, p=0x55f793a4f210, have_lock=0) at malloc.c:4110
 __GI___libc_free (mem=<optimized out>) at malloc.c:2982
 da_free (d=0x55f7937c9ad0) at darray.c:275
 trie_free (trie=0x55f7913bf370) at trie.c:229

[Launchpad Janitor (janitor)]

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