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  1. Qt
  2. QTBUG-62144

After reconnecting a few times it is possible for a modbus client to assert due to an unexpected state

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      After reconnecting a few times it is possible for a modbus client to assert due to an unexpected state. Unfortunately I don't have an example, but the following is the stack for the assert:

      1  QMessageLogger::fatal                                                                                                                                                                                                             qlogging.cpp                   788  0x18af282  
      2  qt_assert_x                                                                                                                                                                                                                       qglobal.cpp                    3052 0x18aaa7b  
      3  QModbusRtuSerialMasterPrivate::processQueue                                                                                                                                                                                       qmodbusrtuserialmaster_p.h     362  0x1ffb353e 
      4  QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}::operator()() const                                                                                                              qmodbusrtuserialmaster_p.h     160  0x1ffc3e37 
      5  QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}>::call({lambda()#3}&, void * *)                        qobjectdefs_impl.h             130  0x1ffc3e37 
      6  QtPrivate::Functor<QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}, 0>::call<QtPrivate::List<>, void>({lambda()#3}&, void *, QtPrivate::List<> *)                                qobjectdefs_impl.h             242  0x1ffc3e37 
      7  QtPrivate::QFunctorSlotObject<QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void * *, bool *) qobject_impl.h                 168  0x1ffc3e37 
      8  QtPrivate::QSlotObjectBase::call                                                                                                                                                                                                  qobject_impl.h                 101  0x1a4b1d3  
      9  QSingleShotTimer::timerEvent                                                                                                                                                                                                      qtimer.cpp                     318  0x1a4b1d3  
      10 QObject::event                                                                                                                                                                                                                    qobject.cpp                    1227 0x1a430ec  
      11 QApplicationPrivate::notify_helper                                                                                                                                                                                                qapplication.cpp               3717 0x159685a6 
      12 QApplication::notify                                                                                                                                                                                                              qapplication.cpp               3089 0x1596fb9c 
      13 QCoreApplication::notifyInternal2                                                                                                                                                                                                 qcoreapplication.cpp           1018 0x1a1c189  
      14 QCoreApplication::sendEvent                                                                                                                                                                                                       qcoreapplication.h             233  0x1a6a86b  
      15 QEventDispatcherWin32Private::sendTimerEvent                                                                                                                                                                                      qeventdispatcher_win.cpp       444  0x1a6a86b  
      16 QEventDispatcherWin32::event                                                                                                                                                                                                      qeventdispatcher_win.cpp       1054 0x1a6b066  
      17 QApplicationPrivate::notify_helper                                                                                                                                                                                                qapplication.cpp               3717 0x159685a6 
      18 QApplication::notify                                                                                                                                                                                                              qapplication.cpp               3089 0x1596fb9c 
      19 QCoreApplication::notifyInternal2                                                                                                                                                                                                 qcoreapplication.cpp           1018 0x1a1c189  
      20 QCoreApplication::sendEvent                                                                                                                                                                                                       qcoreapplication.h             233  0x1a20a12  
      21 QCoreApplicationPrivate::sendPostedEvents                                                                                                                                                                                         qcoreapplication.cpp           1678 0x1a20a12  
      22 QEventDispatcherWin32::sendPostedEvents                                                                                                                                                                                           qeventdispatcher_win.cpp       1062 0x1a67cd7  
      23 QWindowsGuiEventDispatcher::sendPostedEvents                                                                                                                                                                                      qwindowsguieventdispatcher.cpp 81   0x62aa7150 
      24 qt_internal_proc(HWND__ *, unsigned int, unsigned int, long) *16                                                                                                                                                                  qeventdispatcher_win.cpp       234  0x1a6ae72  
      25 gapfnScSendMessage                                                                                                                                                                                                                                                    0x768562fa 
      26 ??                                                                                                                                                                                                                                                                    0xb0864    
      27 ??                                                                                                                                                                                                                                                                    0x401      
      28 ?? 
      

      The output from the logging is attached.

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            Assignee:
            heimrich Karsten Heimrich
            Reporter:
            andysh Andy Shaw
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              Resolved:

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