Here's the valgrind output of the error from earlier in the day when I could reproduce it (on mako):
==8894== Invalid read of size 4 ==8894== at 0x4867B78: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_weak_release() (shared_ptr_base.h:190) ==8894== by 0x4866B39: std::__weak_count<(__gnu_cxx::_Lock_policy)2>::~__weak_count() (shared_ptr_base.h:755) ==8894== by 0x4866279: std::__weak_ptr<mir::client::ClientPlatformFactory, (__gnu_cxx::_Lock_policy)2>::~__weak_ptr() (shared_ptr_base.h:1350) ==8894== by 0x4866293: std::weak_ptr<mir::client::ClientPlatformFactory>::~weak_ptr() (shared_ptr.h:467) ==8894== by 0x48662D3: mir::CachedPtr<mir::client::ClientPlatformFactory>::~CachedPtr() (cached_ptr.h:28) ==8894== by 0x486E3F7: mir::client::DefaultConnectionConfiguration::~DefaultConnectionConfiguration() (in /home/phablet/mir/boom/lib/libmirclient.so.8) ==8894== by 0x486E441: mir::client::DefaultConnectionConfiguration::~DefaultConnectionConfiguration() (default_connection_configuration.h:46) ==8894== by 0x4855E8F: std::default_delete<mir::client::ConnectionConfiguration>::operator()(mir::client::ConnectionConfiguration*) const (unique_ptr.h:76) ==8894== by 0x4855941: std::unique_ptr<mir::client::ConnectionConfiguration, std::default_delete<mir::client::ConnectionConfiguration> >::~unique_ptr() (unique_ptr.h:236) ==8894== by 0x4855071: (anonymous namespace)::DefaultMirConnectionAPI::connect(char const*, char const*, void (*)(MirConnection*, void*), void*) (mir_connection_api.cpp:75) ==8894== by 0x48552AB: mir_connect (mir_connection_api.cpp:140) ==8894== by 0x485530D: mir_connect_sync (mir_connection_api.cpp:156) ==8894== Address 0x5a92bf4 is not stack'd, malloc'd or (recently) free'd ==8894== ==8894== ==8894== Process terminating with default action of signal 11 (SIGSEGV): dumping core ==8894== Access not within mapped region at address 0x5A92BF4 ==8894== at 0x4867B78: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_weak_release() (shared_ptr_base.h:190) ==8894== by 0x4866B39: std::__weak_count<(__gnu_cxx::_Lock_policy)2>::~__weak_count() (shared_ptr_base.h:755) ==8894== by 0x4866279: std::__weak_ptr<mir::client::ClientPlatformFactory, (__gnu_cxx::_Lock_policy)2>::~__weak_ptr() (shared_ptr_base.h:1350) ==8894== by 0x4866293: std::weak_ptr<mir::client::ClientPlatformFactory>::~weak_ptr() (shared_ptr.h:467) ==8894== by 0x48662D3: mir::CachedPtr<mir::client::ClientPlatformFactory>::~CachedPtr() (cached_ptr.h:28) ==8894== by 0x486E3F7: mir::client::DefaultConnectionConfiguration::~DefaultConnectionConfiguration() (in /home/phablet/mir/boom/lib/libmirclient.so.8) ==8894== by 0x486E441: mir::client::DefaultConnectionConfiguration::~DefaultConnectionConfiguration() (default_connection_configuration.h:46) ==8894== by 0x4855E8F: std::default_delete<mir::client::ConnectionConfiguration>::operator()(mir::client::ConnectionConfiguration*) const (unique_ptr.h:76) ==8894== by 0x4855941: std::unique_ptr<mir::client::ConnectionConfiguration, std::default_delete<mir::client::ConnectionConfiguration> >::~unique_ptr() (unique_ptr.h:236) ==8894== by 0x4855071: (anonymous namespace)::DefaultMirConnectionAPI::connect(char const*, char const*, void (*)(MirConnection*, void*), void*) (mir_connection_api.cpp:75) ==8894== by 0x48552AB: mir_connect (mir_connection_api.cpp:140) ==8894== by 0x485530D: mir_connect_sync (mir_connection_api.cpp:156) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mir in Ubuntu. https://bugs.launchpad.net/bugs/1358191 Title: [regression] Clients are crashing (SIGSEGV) on mir_connect() Status in Mir: In Progress Status in Mir 0.6 series: Triaged Status in “mir” package in Ubuntu: Triaged Bug description: On image 195 on mako, phablet@ubuntu-phablet:~$ mirping Segmentation fault (core dumped) phablet@ubuntu-phablet:~$ mirscreencast -n1 Segmentation fault (core dumped) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1358191/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
