[MacPorts] #46681: crash in glx_display_free when closing application connected to remote XOrg.org server

[MacPorts]

#46681: crash in glx_display_free when closing application connected to remote
XOrg.org server
-------------------------+--------------------------------
 Reporter:  rjvbertin@…  |      Owner:  macports-tickets@…
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.3
 Keywords:  crash        |       Port:  mesa
-------------------------+--------------------------------
 I've built the Qt 5.4.0 xcb platform plugin, which allows Qt applications
 to connect and render to (remote) X11 servers.
 After testing and quitting Qt's own Assistant application, I got the
 following crash:

 {{{
 Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
 Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000010

 VM Regions Near 0x10:
 -->
     __TEXT                 000000010d1e4000-000000010d2d5000 [  964K]
 r-x/rwx SM=COW
 /Applications/MacPorts/*/Assistant.app/Contents/MacOS/Assistant

 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
 0   libGL.1.dylib                       0x00000001178c5897
 glx_display_free + 14
 1   libGL.1.dylib                       0x00000001178c57cc
 __glXCloseDisplay + 111
 2   libX11.6.dylib                      0x0000000117bce8da XCloseDisplay +
 156
 3   libqxcb.dylib                       0x0000000117703d8f
 QXcbConnection::~QXcbConnection() + 399 (qxcbconnection.cpp:449)
 4   libqxcb.dylib                       0x00000001177041ae
 QXcbConnection::~QXcbConnection() + 14 (qxcbconnection.cpp:415)
 5   libqxcb.dylib                       0x000000011770824e
 QXcbIntegration::~QXcbIntegration() + 78 (qlist.h:262)
 6   libqxcb.dylib                       0x000000011770832e
 QXcbIntegration::~QXcbIntegration() + 14 (qxcbintegration.cpp:169)
 7   org.qt-project.QtGui                0x000000010dcad17e
 QGuiApplicationPrivate::~QGuiApplicationPrivate() + 366
 8   org.qt-project.QtWidgets            0x000000010d40dea0
 QApplicationPrivate::~QApplicationPrivate() + 176
 9   org.qt-project.QtWidgets            0x000000010d40dece
 QApplicationPrivate::~QApplicationPrivate() + 14
 10  org.qt-project.QtCore               0x000000010e5114d7
 QObject::~QObject() + 1879
 11  org.qt-project.QtGui                0x000000010dcaa613
 QGuiApplication::~QGuiApplication() + 499
 12  org.qt-project.QtWidgets            0x000000010d40ff60
 QApplication::~QApplication() + 880
 13  org.qt-project.QtWidgets            0x000000010d40ffbe
 QApplication::~QApplication() + 14
 14  org.qt-project.assistant            0x000000010d205727 main + 10727
 (qscopedpointer.h:54)
 15  org.qt-project.assistant            0x000000010d1e8b74 start + 52
 }}}

 Full backtrace included (minus all loaded shared objects outside of
 ${prefix})

-- 
Ticket URL: <https://trac.macports.org/ticket/46681>
MacPorts <https://www.macports.org/>
Ports system for OS X