unity-system-compositor crashed with SIGSEGV in ~task_cleanup

[Jaime Rave]

I was opening synaptic and compiz crashed and after that this error appear.

The compiz crash was reported as bug 1216325

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity-system-compositor 0.0.1+13.10.20130822.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-3.8-generic 3.11.0-rc6
Uname: Linux 3.11.0-3-generic x86_64
ApportVersion: 2.12.1-0ubuntu2
Architecture: amd64
Date: Sat Aug 24 09:33:50 2013
ExecutablePath: /usr/sbin/unity-system-compositor
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Madison [Mobility Radeon HD 5730 / 6570M] [1002:68c0] (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:1594]
InstallationDate: Installed on 2013-03-16 (161 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcCmdline: /usr/sbin/unity-system-compositor --from-dm-fd 10 --to-dm-fd 13 --vt 7
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
SegvAnalysis:
 Segfault happened at: 0x7f41b4733f74 <__GI___pthread_mutex_lock+4>: mov 0x10(%rdi),%esi
 PC (0x7f41b4733f74) ok
 source "0x10(%rdi)" (0x00000010) 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: unity-system-compositor
StacktraceTop:
 __GI___pthread_mutex_lock (mutex=0x14af1f0) at pthread_mutex_lock.c:50
 boost::asio::detail::task_io_service::run(boost::system::error_code&) () from /usr/lib/x86_64-linux-gnu/libmirserver.so.1
 ?? () from /usr/lib/x86_64-linux-gnu/libmirserver.so.1
 ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
 start_thread (arg=0x7f41a6759700) at pthread_create.c:311
Title: unity-system-compositor crashed with SIGSEGV in __GI___pthread_mutex_lock()
UnitySystemCompositorLog:
 dm_connection_start
 set_active_session '0'
 set_active_session
 Segmentation fault (core dumped)
UpgradeStatus: Upgraded to saucy on 2013-03-17 (160 days ago)
UserGroups:

version.libdrm: libdrm2 2.4.46-1
version.lightdm: lightdm 1.7.9-0ubuntu1
version.mesa: libegl1-mesa-dev N/A

[Apport retracing service (apport)]

StacktraceTop:
 __GI___pthread_mutex_lock (mutex=0x14af1f0) at pthread_mutex_lock.c:50
 lock (this=<optimized out>) at /usr/include/boost/asio/detail/posix_mutex.hpp:52
 lock (this=0x14af220) at /usr/include/boost/asio/detail/scoped_lock.hpp:52
 ~task_cleanup (this=0x7f41a6758d30, __in_chrg=<optimized out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:48
 do_run_one (ec=..., this_thread=..., lock=..., this=<optimized out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:396

[Daniel van Vugt (vanvugt)]

The crash seems to be entirely in libmirserver.

[Alan Griffiths (alan-griffiths)]

I doubt this is relevant now

[Michał Sawicz (saviq)]

Syncing task from Mir.

[Launchpad Janitor (janitor)]

[Expired for mir (Ubuntu) because there has been no activity for 60 days.]