Mir

  1. Bug #1358191
  2. Comment #14

Comment 14 for bug 1358191

Revision history for this message
Daniel van Vugt (vanvugt) wrote : Re: [regression] Clients are crashing (SIGSEGV) on mir_connect()

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)