Assertion failed: (pthreadret == 0), function _xcb_in_wake_up_next_reader, file xcb_in.c, line 926.
Following the upgrade to libxcb 1.14, we have now a crash in one of our tools (http://flair.web.cern.ch/flair/) with the crash report below.
The problem appears at this line called in frame 11:
XPutImage(self->display, self->pixmap, self->gc, self->ximage, 0, 0, 0, 0, width, height);
Comparing with the libxcb 1.13, I managed to track down the issue to the variable total_read
defined
in xcbint.h.
Indeed, with the attached patch the crash disappears. p6.diff For sake of completeness, libxcb is installed via MacPorts. If needed, I can provide additional details.
- Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
- 0 libsystem_kernel.dylib 0x00007fff6da8733a __pthread_kill + 10
- 1 libsystem_pthread.dylib 0x00007fff6db43e60 pthread_kill + 430
- 2 libsystem_c.dylib 0x00007fff6da0e808 abort + 120
- 3 libsystem_c.dylib 0x00007fff6da0dac6 __assert_rtn + 314
- 4 libxcb.1.dylib 0x00000001147c7746 _xcb_in_wake_up_next_reader + 89
- 5 libxcb.1.dylib 0x00000001147c6dd6 _xcb_out_send + 125
- 6 libxcb.1.dylib 0x00000001147c6d3e xcb_writev + 68
- 7 libX11.6.dylib 0x00000001157fe8f9 _XSend + 315
- 8 libX11.6.dylib 0x00000001157f42c7 PutSubImage + 1924
- 9 libX11.6.dylib 0x00000001157f3c8b PutSubImage + 328
- 10 libX11.6.dylib 0x00000001157f385f XPutImage + 424
- 11 geoviewer.so 0x0000000115689233 Viewer_expose(ViewerObject*, _object*) + 163
- 12 org.python.python 0x000000010df3eb26 cfunction_call_varargs + 319
- 13 org.python.python 0x000000010dfd6b72 _PyEval_EvalFrameDefault + 9050
- 14 org.python.python 0x000000010dfddeb9 _PyEval_EvalCodeWithName + 2107
- 15 org.python.python 0x000000010df3ef21 _PyFunction_Vectorcall + 217
- 16 org.python.python 0x000000010df40f56 method_vectorcall + 372
- 17 org.python.python 0x000000010df3e80d PyVectorcall_Call + 108
- 18 _tkinter.cpython-38-darwin.so 0x000000010e8c0012 PythonCmd + 205
- 19 libtcl8.6.dylib 0x000000010e8ddaee TclNRRunCallbacks + 79
- 20 libtcl8.6.dylib 0x000000010e8ded06 TclEvalEx + 1987
- 21 libtcl8.6.dylib 0x000000010e8de53d Tcl_EvalEx + 26
- 22 libtk8.6.dylib 0x000000010ebff362 Tk_BindEvent + 5754
- 23 libtk8.6.dylib 0x000000010ec04fe9 TkBindEventProc + 334
- 24 libtk8.6.dylib 0x000000010ec0c523 Tk_HandleEvent + 997
- 25 libtk8.6.dylib 0x000000010ec0cc0c WindowEventProc + 96
- 26 libtcl8.6.dylib 0x000000010e985e78 Tcl_ServiceEvent + 136
- 27 libtcl8.6.dylib 0x000000010e98606d Tcl_DoOneEvent + 153
- 28 _tkinter.cpython-38-darwin.so 0x000000010e8be324 _tkinter_tkapp_mainloop + 342
- 29 org.python.python 0x000000010df45d4e method_vectorcall_FASTCALL + 250
- 30 org.python.python 0x000000010dfdd2f5 call_function + 346
- 31 org.python.python 0x000000010dfd66cd _PyEval_EvalFrameDefault + 7861
- 32 org.python.python 0x000000010dfddeb9 _PyEval_EvalCodeWithName + 2107
- 33 org.python.python 0x000000010df3ef21 _PyFunction_Vectorcall + 217
- 34 org.python.python 0x000000010df40e69 method_vectorcall + 135
- 35 org.python.python 0x000000010dfdd2f5 call_function + 346
- 36 org.python.python 0x000000010dfd66f0 _PyEval_EvalFrameDefault + 7896
- 37 org.python.python 0x000000010dfddeb9 _PyEval_EvalCodeWithName + 2107
- 38 org.python.python 0x000000010dfd4790 PyEval_EvalCode + 42
- 39 org.python.python 0x000000010e00c57d run_eval_code_obj + 102
- 40 org.python.python 0x000000010e00b9cb run_mod + 82
- 41 org.python.python 0x000000010e00a8a5 PyRun_FileExFlags + 160
- 42 org.python.python 0x000000010e009f89 PyRun_SimpleFileExFlags + 271
- 43 org.python.python 0x000000010e021834 Py_RunMain + 1836
- 44 org.python.python 0x000000010e021b90 pymain_main + 370
- 45 org.python.python 0x000000010e021be5 Py_BytesMain + 42
- 46 libdyld.dylib 0x00007fff6d93fcc9 start + 1