Qt 6.3.1 painful....

SPlatten

I'm not sure I am winning this battle Qt 6.3.1 on my MacBook Pro Apple M1 is not going anywhere fast.

My application is multi-threaded, when I run the application it is halting in (__pthread_kill) showing a window containing nothing but hex, the stack trade showing in Test Results panel contains:

                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                    
1  __pthread_kill                                                                                                               (arm64e) /usr/lib/system/libsystem_kernel.dylib                                         0x185b2ed98 
2  pthread_kill                                                                                                                 (arm64e) /usr/lib/system/libsystem_pthread.dylib                                        0x185b63ee0 
3  abort                                                                                                                        (arm64e) /usr/lib/system/libsystem_c.dylib                                              0x185a9e340 
4  malloc_vreport                                                                                                               (arm64e) /usr/lib/system/libsystem_malloc.dylib                                         0x1859808c0 
5  malloc_zone_error                                                                                                            (arm64e) /usr/lib/system/libsystem_malloc.dylib                                         0x185995c84 
6  nanov2_allocate_from_block                                                                                                   (arm64e) /usr/lib/system/libsystem_malloc.dylib                                         0x185972bc4 
7  nanov2_allocate                                                                                                              (arm64e) /usr/lib/system/libsystem_malloc.dylib                                         0x1859721e0 
8  nanov2_calloc                                                                                                                (arm64e) /usr/lib/system/libsystem_malloc.dylib                                         0x18597437c 
9  _malloc_zone_calloc                                                                                                          (arm64e) /usr/lib/system/libsystem_malloc.dylib                                         0x18598f840 
10 class_createInstance                                                                                                         (arm64e) /usr/lib/libobjc.A.dylib                                                       0x1859ea404 
11 _os_object_alloc_realized                                                                                                    (arm64e) /usr/lib/system/libdispatch.dylib                                              0x18599f568 
12 _xpc_dictionary_deserialize                                                                                                  (arm64e) /usr/lib/system/libxpc.dylib                                                   0x1858982d0 
13 _xpc_array_deserialize                                                                                                       (arm64e) /usr/lib/system/libxpc.dylib                                                   0x1858981ec 
14 _xpc_dictionary_unpack_value                                                                                                 (arm64e) /usr/lib/system/libxpc.dylib                                                   0x185893fc0 
15 _xpc_dictionary_unpack_value_and_vend                                                                                        (arm64e) /usr/lib/system/libxpc.dylib                                                   0x185895424 
16 _xpc_dictionary_look_up                                                                                                      (arm64e) /usr/lib/system/libxpc.dylib                                                   0x18588fe8c 
17 -[CFPrefsSearchListSource handleReply:toRequestNewDataMessage:onConnection:retryCount:error:]                                (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation  0x185be46a4 
18 __80-[CFPrefsSearchListSource alreadylocked_generationCountFromListOfSources:count:]_block_invoke                            (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation  0x185be45a8 
19 __104-[CFPrefsSearchListSource synchronouslySendDaemonMessage:andAgentMessage:andDirectMessage:replyHandler:]_block_invoke_2 (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation  0x185be4540 
20 -[_CFXPreferences withConnectionForRole:performBlock:]                                                                       (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation  0x185be4100 
21 __104-[CFPrefsSearchListSource synchronouslySendDaemonMessage:andAgentMessage:andDirectMessage:replyHandler:]_block_invoke   (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation  0x185be40a4 
22 _dispatch_client_callout2                                                                                                    (arm64e) /usr/lib/system/libdispatch.dylib                                              0x1859a01f4 
23 _dispatch_apply_invoke                                                                                                       (arm64e) /usr/lib/system/libdispatch.dylib                                              0x1859b3954 
24 _dispatch_client_callout                                                                                                     (arm64e) /usr/lib/system/libdispatch.dylib                                              0x1859a01b4 
25 _dispatch_root_queue_drain                                                                                                   (arm64e) /usr/lib/system/libdispatch.dylib                                              0x1859b1a04 
26 _dispatch_worker_thread2                                                                                                     (arm64e) /usr/lib/system/libdispatch.dylib                                              0x1859b2104 
27 _pthread_wqthread                                                                                                            (arm64e) /usr/lib/system/libsystem_pthread.dylib                                        0x185b60324

JoeCFD

I guess you are able to use c++20 now. Adding logging code into your threads may enable you to find issues more quickly.
https://mariusbancila.ro/blog/2021/07/03/writing-a-simple-logging-function-in-c20/

DerReisende

@JoeCFD You don't need c++20 to do that, QMessageLogContext does give you the same information if you install a proper message handler:

static void qt_message_handler(QtMsgType type, [[maybe_unused]] const QMessageLogContext &context, const QString &msg) {
    const QByteArray localMsg = msg.toLocal8Bit();
#ifdef NDEBUG
    const auto out_msg = fmt::format("\t{}", localMsg.constData());
#else
    const char *function = context.function ? context.function : "";
    const auto out_msg = fmt::format("\t{} [LINE:{}, {}]",
                                      localMsg.constData(),
                                      context.line,
                                      function);
#endif
    switch (type) {
        case QtDebugMsg:
            spdlog::debug(out_msg);
            break;
        case QtInfoMsg:
            spdlog::info(out_msg);
            break;
        case QtWarningMsg:
            spdlog::warn(out_msg);
            break;
        case QtCriticalMsg:
            spdlog::error(out_msg);
            break;
        case QtFatalMsg:
            spdlog::critical(out_msg);
            spdlog::shutdown();
            break;
    }
}

void init_logging() {
    init_spdlog();

    qInstallMessageHandler(qt_message_handler);
}

I am using spdlog and fmt::format for logging and formatting but in the end you will get almost the same details for all Qt logging calls as with your example.

SPlatten

@DerReisende , thank you, I've done this already for several years, here is the output to my log file:

XMLMPAM start-up
Listening to any local IP address on port: 8123
S000000000003E000000000374T09:56:43.345T:DL00004842P../clsMainWnd.cpp[void clsXMLnode::update]
"Node:label ID:lbl1 X:12 Y:261 W:100 H:30 Text:<a href=\"http://google.com\" style=\"color:#000000;text-decoration:none;\">Google</a>:"
S000000000004E000000000407T09:56:43.378T:DL00003985P../clsMainWnd.cpp[static clsXMLnode *clsXMLnode::spobjParse]
"label"
S000000000005E000000000408T09:56:43.379T:DL00004842P../clsMainWnd.cpp[void clsXMLnode::update]
"Node:label ID:lbl1 X:12 Y:261 W:100 H:30 Text:<a href=\"http://google.com\" style=\"color:#000000;text-decoration:none;\">Google</a>:"
S000000000006E000000000408T09:56:43.379T:D:"Node:label ID:lbl1 X:12 Y:261 W:100 H:30 Text:<a href=\"http://google.com\" style=\"color:#000000;text-decoration:none;\">Google</a>:"
S000000000007E000000007037T09:56:50.008T:DL00000798P../clsMainWnd.cpp[clsXMLnode::clsXMLnode]
"test99"
S000000000008E000000007037T09:56:50.008T:DL00003985P../clsMainWnd.cpp[static clsXMLnode *clsXMLnode::spobjParse]
"label"
S000000000009E000000007104T09:56:50.075T:D:"label"
S000000000010E000000007113T09:56:50.084T:D:"label"
S000000000011E000000007128T09:56:50.099T:D:"label"
Process:  Arg[0]: 8123
Process:  Arg[1]: 8124
Process:  Arg[2]: 24150
Process:  Arg[3]: f1
Process is NOT running, launching
S000000000014E000000007171T09:56:50.142T:DL00000553P../clsModule.cpp[void clsModule::setProgram]
Starting: f1:mdFIO
Registering decoder for file simon.js, function: blnDecodeFIOcmd
Process:  Arg[0]: 8123
Process:  Arg[1]: 8125
Process:  Arg[2]: 24150
Process:  Arg[3]: s1
Process is NOT running, launching
S000000000018E000000007177T09:56:50.148T:D:Starting: s1:mdSQL
Registering decoder for file simon.js, function: blnDecodeSQLcmd
Process:  Arg[0]: 8123
Process:  Arg[1]: 8126
Process:  Arg[2]: 24150
Process:  Arg[3]: x1
Process is NOT running, launching
S000000000022E000000007182T09:56:50.153T:D:Starting: x1:mdXML
Registering decoder for file simon.js, function: blnDecodeXMLcmd
S000000000024E000000007234T09:56:50.205T:DL00000571P../clsModule.cpp[auto clsModule::setProgram]
PID for mdXML: 24171, On port: 8123
Process:  mdXML started
S000000000026E000000007234T09:56:50.205T:D:PID for mdFIO: 24165, On port: 8123
Process:  mdFIO started
S000000000028E000000007234T09:56:50.205T:D:PID for mdSQL: 24168, On port: 8123
Process:  mdSQL started
Client connecting...
Client connecting...
Client connecting...
Client connected
Client connected
Client connected
!s1!Client connecting...
!s1!Client connected
!f1!Client connecting...
!f1!Client connected
!x1!Client connecting...
!x1!Client connected
!f1!S000000000042E000000000131T09:56:50.347DL00000731F../mdFIO/clsModFIO.cpp[void clsModFIO::doComm
!f1!S000000000042E000000000131T09:56:50.347DL00000731F../mdFIO/clsModFIO.cpp[void clsModFIO::doCommand]
2022-08-17 08:56:50,  Command#1: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000043E000000000131T09:56:50.347D:Length
!f1!S000000000043E000000000131T09:56:50.347D:Length: 1
!f1!S000000000044E000000000131T09:56:50.347D:2022-08
!f1!S000000000044E000000000131T09:56:50.347D:2022-08-17 08:56:50,  Command#2: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000045E000000000131T09:56:50.347D:Length
!f1!S000000000045E000000000131T09:56:50.347D:Length: 2
!f1!S000000000046E000000000131T09:56:50.347D:2022-08
!f1!S000000000046E000000000131T09:56:50.347D:2022-08-17 08:56:50,  Command#3: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000047E000000000131T09:56:50.347D:Length
!f1!S000000000047E000000000131T09:56:50.347D:Length: 4
!f1!S000000000048E000000000131T09:56:50.348D:2022-08
!f1!S000000000048E000000000131T09:56:50.348D:2022-08-17 08:56:50,  Command#4: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000049E000000000131T09:56:50.348D:Length
!f1!S000000000049E000000000131T09:56:50.348D:Length: 8
!f1!S000000000050E000000000131T09:56:50.348D:2022-08
!f1!S000000000050E000000000131T09:56:50.348D:2022-08-17 08:56:50,  Command#5: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000051E000000000131T09:56:50.348D:Length
!f1!S000000000051E000000000131T09:56:50.348D:Length: 4
!f1!S000000000052E000000000131T09:56:50.348D:2022-08
!f1!S000000000052E000000000131T09:56:50.348D:2022-08-17 08:56:50,  Command#6: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000053E000000000131T09:56:50.348D:Length
!f1!S000000000053E000000000131T09:56:50.348D:Length: 8
!f1!S000000000054E000000000132T09:56:50.348D:2022-08
!f1!S000000000054E000000000132T09:56:50.348D:2022-08-17 08:56:50,  Command#7: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000055E000000000132T09:56:50.348D:Length
!f1!S000000000055E000000000132T09:56:50.348D:Length: 27
!f1!S000000000056E000000000132T09:56:50.348D:2022-08
!f1!S000000000056E000000000132T09:56:50.348D:2022-08-17 08:56:50,  Command#8: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000057E000000000132T09:56:50.348D:Length
!f1!S000000000057E000000000132T09:56:50.348D:Length: 1
!f1!S000000000058E000000000132T09:56:50.348D:2022-08
!f1!S000000000058E000000000132T09:56:50.348D:2022-08-17 08:56:50,  Command#9: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000059E000000000132T09:56:50.348D:Length
!f1!S000000000059E000000000132T09:56:50.348D:Length: 2
!f1!S000000000060E000000000132T09:56:50.348D:2022-08
!f1!S000000000060E000000000132T09:56:50.348D:2022-08-17 08:56:50,  Command#10: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000061E000000000132T09:56:50.348D:Length
!f1!S000000000061E000000000132T09:56:50.348D:Length: 4
!f1!S000000000062E000000000132T09:56:50.348D:2022-08
!f1!S000000000062E000000000132T09:56:50.348D:2022-08-17 08:56:50,  Command#11: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rb
!f1!S000000000063E000000000132T09:56:50.348D:Length
!f1!S000000000063E000000000132T09:56:50.348D:Length: 8
!f1!S000000000064E000000000132T09:56:50.348D:2022-08
!f1!S000000000064E000000000132T09:56:50.348D:2022-08-17 08:56:50,  Command#12: find, File: /Users/sy/XMLMPAM/config/test.dat, Mode: r
!f1!S000000000065E000000000132T09:56:50.348D:Length
!f1!S000000000065E000000000132T09:56:50.348D:Length: 18446744073709551615
!f1!S000000000066E000000000132T09:56:50.349D:2022-08
!f1!S000000000066E000000000132T09:56:50.349D:2022-08-17 08:56:50,  Command#13: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rt
!f1!S000000000067E000000000132T09:56:50.349D:Length
!f1!S000000000067E000000000132T09:56:50.349D:Length: 3
!f1!S000000000068E000000000132T09:56:50.349D:2022-08
!f1!S000000000068E000000000132T09:56:50.349D:2022-08-17 08:56:50,  Command#14: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rt
!f1!S000000000069E000000000132T09:56:50.349D:Length
!f1!S000000000069E000000000132T09:56:50.349D:Length: 4
!f1!S000000000070E000000000132T09:56:50.349D:2022-08
!f1!S000000000070E000000000132T09:56:50.349D:2022-08-17 08:56:50,  Command#15: read, File: /Users/sy/XMLMPAM/config/test.dat, Mode: rt
!f1!S000000000071E000000000132T09:56:50.349D:Positio
!f1!S000000000071E000000000132T09:56:50.349D:Position: -15
!f1!S000000000072E000000000133T09:56:50.349D:Length
!f1!S000000000072E000000000133T09:56:50.349D:Length: 5
!f1!S000000000073E000000000133T09:56:50.349D:2022-08
!f1!S000000000073E000000000133T09:56:50.349D:2022-08-17 08:56:50,  Command#16: tell, File: /Users/sy/XMLMPAM/config/test.dat, Mode: r
!f1!S000000000074E000000000133T09:56:50.349D:Length
!f1!S000000000074E000000000133T09:56:50.349D:Length: 18446744073709551615
!s1!S000000000008E000000000137T09:56:50.343DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000008E000000000137T09:56:50.343DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"connect","params":{"database":"test","driver":"QMYSQL","host":"localhost","pass":"resuocra","usr":"root"}}
!s1!S000000000009E000000000179T09:56:50.384DL00000212F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000009E000000000179T09:56:50.384DL00000212F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"connect","output":"connected"}
S000000000036E000000007753T09:56:50.724T:W:QObject: Cannot create children for a parent that is in a different thread.
(Parent is QNativeSocketEngine(0x600000012910), parent's thread is clsServer(0x600000257fc0), current thread is clsThread(0x600002c2a000)
!s1!S000000000010E000000000519T09:56:50.724DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000010E000000000519T09:56:50.724DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"addrTo":"s1","args":[2],"command":"query","handler":"simon2.js@testFormHandler","msgType":"notify","source":"XMLMPAM","sql":"SELECT * FROM test.tblForm LIMIT ?;"}
!s1!S000000000011E000000000521T09:56:50.726DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000011E000000000521T09:56:50.726DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"query","handler":"simon2.js@testFormHandler","output":"connected","records":[{"intEmployed":"1","intPri":"1","vcAddress":"Latona House\nStation Road\nCantley\nNorfolk\nNR13 3SQ","vcFirstName":"Simon","vcSex":"Male","vcSurName":"Platten"},{"intEmployed":"1","intPri":"2","vcAddress":"Latona House\nStation Road\nCantley\nNorfolk\nNR13 3SQ","vcFirstName":"Susan","vcSex":"Female","vcSurName":"Platten"}]}
!s1!S000000000012E000000000781T09:56:50.987DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000012E000000000781T09:56:50.987DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"addrTo":"s1","args":[2],"command":"query","handler":"simon2.js@testFormHandler","msgType":"notify","source":"XMLMPAM","sql":"SELECT * FROM test.tblForm WHERE intPri NOT IN(1,2) LIMIT ?;"}
!s1!S000000000013E000000000782T09:56:50.987DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000013E000000000782T09:56:50.987DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"query","handler":"simon2.js@testFormHandler","output":"connected"}
!s1!S000000000014E000000001044T09:56:51.249DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000014E000000001044T09:56:51.249DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"addrTo":"s1","args":[2],"command":"query","handler":"simon2.js@testFormHandler","msgType":"notify","source":"XMLMPAM","sql":"SELECT * FROM test.tblForm WHERE intPri NOT IN(1,2) LIMIT ?;"}
!s1!S000000000015E000000001044T09:56:51.249DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000015E000000001044T09:56:51.249DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"query","handler":"simon2.js@testFormHandler","output":"connected"}
!s1!S000000000016E000000001304T09:56:51.510DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000016E000000001304T09:56:51.510DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"addrTo":"s1","args":[2],"command":"query","handler":"simon2.js@testFormHandler","msgType":"notify","source":"XMLMPAM","sql":"SELECT * FROM test.tblForm WHERE intPri NOT IN(1,2) LIMIT ?;"}
!s1!S000000000017E000000001305T09:56:51.510DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000017E000000001305T09:56:51.510DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"query","handler":"simon2.js@testFormHandler","output":"connected"}
!s1!S000000000018E000000001562T09:56:51.767DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000018E000000001562T09:56:51.767DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"addrTo":"s1","args":[2],"command":"query","handler":"simon2.js@testFormHandler","msgType":"notify","source":"XMLMPAM","sql":"SELECT * FROM test.tblForm WHERE intPri NOT IN(1,2) LIMIT ?;"}
!s1!S000000000019E000000001562T09:56:51.768DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000019E000000001562T09:56:51.768DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"query","handler":"simon2.js@testFormHandler","output":"connected"}
!s1!S000000000020E000000001812T09:56:52.017DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000020E000000001812T09:56:52.017DL00000171F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"addrTo":"s1","args":[2],"command":"query","handler":"simon2.js@testFormHandler","msgType":"notify","source":"XMLMPAM","sql":"SELECT * FROM test.tblForm WHERE intPri NOT IN(1,2) LIMIT ?;"}
!s1!S000000000021E000000001812T09:56:52.017DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoC
!s1!S000000000021E000000001812T09:56:52.017DL00000276F../mdSQL/clsModSQL.cpp[bool clsModSQL::blnDoCmd]
{"command":"query","handler":"simon2.js@testFormHandler","output":"connected"}
S000000000037E000000009157T09:56:52.128T:W:QObject: Cannot create children for a parent that is in a different thread.
(Parent is QNativeSocketEngine(0x600000025290), parent's thread is clsServer(0x600000255400), current thread is clsThread(0x600002c2a000)
S000000000038E000000009158T09:56:52.129T:W:QObject: Cannot create children for a parent that is in a different thread.
(Parent is QNativeSocketEngine(0x6000000196e0), parent's thread is clsServer(0x600000256f60), current thread is clsThread(0x600002c2a000)

Where:
S is the sequence number
E is the elapsed time
T is the time stamp
T:C Type:Critical warning
T:D Type:Debug message
T:F Type:Fatal error
T:W Type:Warning
L is the line number
P is the path and file name

This is what is shown in the Application Output which suggests the issue is generated during the initialisation of QApplication.


10:04:03: Debugging /Users/sy/XMLMPAM/build-XMLMPAM-Desktop_Qt_5_15_2_clang_64bit-Debug/XMLMPAM.app/Contents/MacOS/XMLMPAM ~/XMLMPAM/config/xmlmpam ...

got fallback qt version 0x50f02
2022-08-17 10:04:08.921420+0100 XMLMPAM[24714:211122] SecTaskLoadEntitlements failed error=22 cs_flags=20, pid=24714
2022-08-17 10:04:08.921503+0100 XMLMPAM[24714:211122] SecTaskCopyDebugDescription: XMLMPAM[24714]/0#-1 LF=0
2022-08-17 10:04:09.414338+0100 XMLMPAM[24714:211122] SecTaskLoadEntitlements failed error=22 cs_flags=20, pid=24714
2022-08-17 10:04:09.414418+0100 XMLMPAM[24714:211122] SecTaskCopyDebugDescription: XMLMPAM[24714]/0#-1 LF=0

Found this:
https://apple.stackexchange.com/questions/237465/what-means-sectaskloadentlitlements-failed-error-22

JoeCFD

@DerReisende the log function in C++ 20 seems simpler. I use both spdlog and Qt logger.

DerReisende

@SPlatten Then maybe this procedure might help you with qmake to get an entitlement running. Apart from networking I dont know what else you might need.
With CMake it should be easier to add an entitlement to your qt app

DerReisende

@JoeCFD Yes, your link looks simpler, I only wanted to highlight that you can get almost the same result if you want to stay with c++17.
And I am sort of reluctant to use c++20 as I got shot several times in the foot trying to compile code on macOS Xcode clang which was written on windows with VC++ :( XCode‘s clang seems to be not the most modern clang available and does lack quite some features available elsewhere.

JoeCFD

@DerReisende I am switching to Ubuntu 22 which has complete C++20 features and am looking forward to using more C++20 features in the hope of making code simpler and more organized. Linking more libs is often annoying. I prefer to use fewer third party libs. Version matching and compatibility are painful in deployment.

SPlatten

@DerReisende , I'm really not sure what the messages SecTaskLoadEntitlements mean or what action I need to take?

DerReisende

@SPlatten The entitlement stuff should have no impact for local development but will be necessary for deployment to other machines later with the hardened runtime otherwise you might not get any network connectivity etc.
Do you still have those crashes from the beginning of the thread?

DerReisende

@JoeCFD If you gonna take a look here what c++20 features are supported by Apple's clang you are going to start crying and wishing you could have VC++ on macOS :D

J.Hilk

@DerReisende said in Qt 6.3.1 painful....:

wishing you could have VC++ on macOS :D

no-one wishes to use MSVC !🤪

JoeCFD

@J-Hilk I liked it although I do not use it for now. I think it is a good one. You can see VS is the first one to have implemented full C++20 features.