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  1. Qt
  2. QTBUG-77024

Test Application hang on exit

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Out of scope
    • Affects Version/s: 5.9.2, 5.12.4
    • Fix Version/s: None
    • Component/s: Core: I/O
    • Labels:
      None
    • Platform/s:
      Windows

      Description

      From time to time i observe Qt test cases hanging indefinitely. When attaching with a debugger i get the following stack trace:

      "QMutex: destroying locked mutex", ap=ap@entry=0x98f970 "\001")                
          at global\qlogging.cpp:373 
      
      [New Thread 17076.0x543c]                                                                                                                                                       
      [New Thread 17076.0x361c]                                                                                                                                                       
      (gdb) bt                                                                                                                                                                        
      #0  0x00007ffb692b3081 in ntdll!DbgBreakPoint () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                                             
      #1  0x00007ffb692def5b in ntdll!DbgUiRemoteBreakin () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                                        
      #2  0x00007ffb68177974 in KERNEL32!BaseThreadInitThunk () from C:\WINDOWS\System32\kernel32.dll                                                                                 
      #3  0x00007ffb6927a271 in ntdll!RtlUserThreadStart () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                                        
      #4  0x0000000000000000 in ?? ()                                                                                                                                                 
      Backtrace stopped: previous frame inner to this frame (corrupt stack?)                                                                                                          
      (gdb) info thread                                                                                                                                                               
        Id   Target Id         Frame                                                                                                                                                  
        1    Thread 17076.0x543c 0x00007ffb692b01e4 in ntdll!ZwWaitForMultipleObjects () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                           
      * 2    Thread 17076.0x361c 0x00007ffb692b3081 in ntdll!DbgBreakPoint () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                      
      (gdb) thread 1                                                                                                                                                                  
      [Switching to thread 1 (Thread 17076.0x543c)]                                                                                                                                   
      #0  0x00007ffb692b01e4 in ntdll!ZwWaitForMultipleObjects () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                                  
      (gdb) bt                                                                                                                                                                        
      #0  0x00007ffb692b01e4 in ntdll!ZwWaitForMultipleObjects () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                                  
      #1  0x00007ffb65f6c7ce in WaitForMultipleObjectsEx () from C:\WINDOWS\System32\KernelBase.dll                                                                                   
      #2  0x00007ffb65f6c6be in WaitForMultipleObjects () from C:\WINDOWS\System32\KernelBase.dll                                                                                     
      #3  0x0000000064941ecd in pthread_cond_init () from <path>\build\CMake\Debug\build\bin\libwinpthread-1.dll                                   
      #4  0x00000000649421c0 in pthread_cond_init () from <path>\build\CMake\Debug\build\bin\libwinpthread-1.dll                                   
      #5  0x0000000064942741 in pthread_cond_wait () from <path>\build\CMake\Debug\build\bin\libwinpthread-1.dll                                   
      #6  0x000000006fd565a9 in libstdc++-6!.cxa_guard_acquire () from <path>\build\CMake\Debug\build\bin\libstdc++-6.dll                          
      #7  0x00000000038b83f4 in (anonymous namespace)::Q_QGS_qtDefaultCategory::innerFunction () at io\qloggingcategory.cpp:47                                                        
      #8  QGlobalStatic<QLoggingCategory, (anonymous namespace)::Q_QGS_qtDefaultCategory::innerFunction, (anonymous namespace)::Q_QGS_qtDefaultCategory::guard>::operator() (         
          this=<optimized out>) at C:/QtTemp/qt/src/qtbase/src/corelib/global/qglobalstatic.h:135                                                                                     
      #9  QLoggingCategory::defaultCategory () at io\qloggingcategory.cpp:388                                                                                                         
      #10 0x000000000374314a in qt_message_print (msgType=msgType@entry=QtWarningMsg, context=..., message=...) at global\qlogging.cpp:1819                                           
      #11 0x0000000003743532 in qt_message (msgType=msgType@entry=QtWarningMsg, context=...,                                                                                          
          msg=msg@entry=0x3b57240 <qt_adopted_thread_watcher_function(void*)::__PRETTY_FUNCTION__+640> "QMutex: destroying locked mutex", ap=ap@entry=0x98f970 "\001")                
          at global\qlogging.cpp:373                                                                                                                                                  
      #12 0x0000000003743b69 in QMessageLogger::warning (this=this@entry=0x98f9f0,                                                                                                    
          msg=msg@entry=0x3b57240 <qt_adopted_thread_watcher_function(void*)::__PRETTY_FUNCTION__+640> "QMutex: destroying locked mutex") at global\qlogging.cpp:651                  
      #13 0x000000000374f57d in QMutex::~QMutex (this=0x3dabc60 <(anonymous namespace)::Q_QGS_qtLoggingRegistry::innerFunction()::holder>, __in_chrg=<optimized out>)                 
          at thread\qmutex.cpp:203                                                                                                                                                    
      #14 0x00000000038b8c97 in QLoggingRegistry::~QLoggingRegistry (this=0x3dabc60 <(anonymous namespace)::Q_QGS_qtLoggingRegistry::innerFunction()::holder>,                        
          __in_chrg=<optimized out>) at io/qloggingregistry_p.h:111                                                                                                                   
      #15 (anonymous namespace)::Q_QGS_qtLoggingRegistry::Holder::~Holder (this=0x3dabc60 <(anonymous namespace)::Q_QGS_qtLoggingRegistry::innerFunction()::holder>,                  
          __in_chrg=<optimized out>) at io\qloggingregistry.cpp:62                                                                                                                    
      #16 __tcf_0 () at io\qloggingregistry.cpp:62                                                                                                                                    
      #17 0x0000000003aa6c04 in _execute_onexit_table () from <path>\build\CMake\Debug\build\bin\Qt5Cored.dll                                      
      #18 0x0000000003731171 in _CRT_INIT () from <path>\build\CMake\Debug\build\bin\Qt5Cored.dll                                                  
      #19 0x0000000003731258 in __DllMainCRTStartup () from <path>\build\CMake\Debug\build\bin\Qt5Cored.dll                                        
      #20 0x00007ffb69258f07 in ntdll!RtlAnsiStringToUnicodeString () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                              
      #21 0x00007ffb692535bc in ntdll!LdrShutdownProcess () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                                        
      #22 0x00007ffb69276dcd in ntdll!RtlExitUserProcess () from C:\WINDOWS\SYSTEM32\ntdll.dll                                                                                        
      #23 0x00007ffb6817d62a in KERNEL32!FatalExit () from C:\WINDOWS\System32\kernel32.dll                                                                                           
      #24 0x00007ffb667da2b5 in msvcrt!_exit () from C:\WINDOWS\System32\msvcrt.dll                                                                                                   
      #25 0x00007ffb667da925 in msvcrt!_initterm_e () from C:\WINDOWS\System32\msvcrt.dll                                                                                             
      #26 0x00000000004014d5 in __tmainCRTStartup ()                                                                                                                                  
      #27 0x000000000040152b in mainCRTStartup ()                                                                                                                                     
      (gdb)                                                                                                                                                                           
      

      To reproduce, run some qtest application in a loop and wait until it hangs.

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            • Assignee:
              Unassigned
              Reporter:
              mdr Max Drechsler
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              Dates

              • Created:
                Updated:
                Resolved:

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