Hangs or crashes on Kubuntu 18.04, system Qt and PyQt #18

nyanpasu64 · 2019-04-09T07:33:31Z

realloc(): invalid pointer
hangs

qtinspector konsole
realloc(): invalid pointer
hangs

qtinspector 14998 # PID of Konsole
Local socket state changed QLocalSocket::ConnectingState 
Local socket reported error QLocalSocket::ServerNotFoundError 
Local socket state changed QLocalSocket::UnconnectedState 
Failed to connect to local socket server in target process 14998 
Failed to inject helper library into process <pid> 
Failed to send top-level widget request fetch to child process

qtinspector okular
hangs

I get the same issue with system or pip pyqt. If I press Ctrl+C, the application exits. If I import platform.machine() and press ctrl+c, the application shows a stack trace where it's waiting for uname to exit.

qtinspector python3 app.py
hangs

Debugging Konsole crash

gdb -args qtinspector konsole
set follow-fork-mode child
run

Logs at https://gist.github.com/nyanpasu64/a222389b67f7e3f7139d2a099a66a092

System Details

Kubuntu 18.04, Qt-Inspector master 0e538d3 .
Qt 5.9.5

I ran make -j4, is that an issue?

The text was updated successfully, but these errors were encountered:

robertknight · 2019-04-09T09:42:23Z

Thank-you for including the logs in the bug report. The stacktrace shows that the crash is happening in code related to the Qt Resource System (qrc) which runs early on startup and is unrelated to Qt Inspector. It is possible that Qt Inspector is changing the environment in a way that indirectly leads to this.

What I would suggest doing at this point is creating a minimal "Hello World" Qt application, maybe one that just creates a blank widget and shows it, and see if you can launch Qt Inspector against that. This will tell us if Qt Inspector is not working at all or if there is something in the more complex environment of eg. Konsole or Okular which causes a problem.

If I press Ctrl+C, the application exits. If I import platform.machine() and press ctrl+c, the application shows a stack trace where it's waiting for uname to exit.

What is the stack trace in that case?

nyanpasu64 · 2019-04-09T16:21:56Z

I probably can't reply soon, I rebooted to Windows for the first time in months maybe, so I can't test it now.

deweloprela · 2019-05-02T03:03:37Z

Hi same behavior on LXDE under ubuntu Ubuntu 16.04.6 LTS Just created empty qt widget app and when tried to attach qtinspector to it it says -
Local socket state changed QLocalSocket::ConnectingState
Local socket reported error QLocalSocket::ServerNotFoundError
Local socket state changed QLocalSocket::UnconnectedState
Failed to connect to local socket server in target process 4294
Failed to inject helper library into process
Failed to send top-level widget request fetch to child process

please tell me if i need to provide other information thanks!

robertknight · 2019-05-02T07:55:54Z

Did you build the application for Qt 4 or Qt 5? What version of Qt are you using in your test app?

deweloprela · 2019-05-02T14:15:53Z

deweloprela · 2019-05-02T14:17:29Z

please let me know what else needed thanks

robertknight · 2019-05-02T15:25:21Z

Did you set the USE_QT5 build option when building Qt Inspector? If not, please try that (see #19 (comment)) and let me know if that works.

deweloprela · 2019-05-02T16:12:51Z

i'm sorry to bother you with this but how to properly set cmake -DUSE_QT5 ? as when doing this way i get

Parse error in command line argument: -DUSE_QT5
Should be: VAR:type=value
CMake Error: No cmake script provided.
CMake Error: Problem processing arguments. Aborting.

this cmake -D USE_QT5 .
Parse error in command line argument: -D Should be: VAR:type=value CMake Error: No cmake script provided. CMake Error: Problem processing arguments. Aborting.

finally with this cmake -D=USE_QT5 . i actually got executable which name is - USE_QT5qtinspector
but it still use qt4 as one line from cmake output says -
`This warning is for project developers. Use -Wno-dev to suppress it.

-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
Building with Qt 4. Enable the USE_QT5 option to build with Qt 5
-- Looking for Q_WS_X11
-- Looking for Q_WS_X11 - found
-- Looking for Q_WS_WIN
-- Looking for Q_WS_WIN - not found
-- Looking for Q_WS_QWS
-- Looking for Q_WS_QWS - not found
-- Looking for Q_WS_MAC
-- Looking for Q_WS_MAC - not found
`

robertknight · 2019-05-02T16:25:21Z

I think the syntax is cmake -DUSE_QT5=ON, but my memory may be fuzzy.

deweloprela · 2019-05-02T21:29:39Z

ok cmake with -DUSE_QT5=ON actually produced executable but trying to connect still return:

Local socket state changed QLocalSocket::ConnectingState
Local socket reported error QLocalSocket::ServerNotFoundError
Local socket state changed QLocalSocket::UnconnectedState
Failed to connect to local socket server in target process 5708
Failed to inject helper library into process
Failed to send top-level widget request fetch to child process

deweloprela · 2019-05-02T21:37:34Z

when tried to start by name receive this:

d@xp:~/Qt-Inspector$ ./qtinspector /home/d/qtProject ======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f681ca5 /lib/x86_64-linux-gnu/libc.so.6(realloc+0x348)[0x7f6 /usr/lib/x86_64-linux-gnu/libQt5Core.so.5(_ZN9QListD /usr/lib/x86_64-linux-gnu/libQt5Core.so.5(_ZN9QListD /usr/lib/x86_64-linux-gnu/libQt5Core.so.5(+0x1d6d78) /usr/lib/x86_64-linux-gnu/libQt5Core.so.5(Z21qRe /usr/lib/x86_64-linux-gnu/libQt5Core.so.5(+0x7bcc3)[ /lib64/ld-linux-x86-64.so.2(+0x106ca)[0x7f681e7706ca /lib64/ld-linux-x86-64.so.2(+0x107db)[0x7f681e7707db /lib64/ld-linux-x86-64.so.2(+0xc6a)[0x7f681e760c6a]< ======= Memory map: ========
00400000-00404000 r-xp 00000000 08:01 1105529 00603000-00604000 r--p 00003000 08:01 1105529 00604000-00605000 rw-p 00004000 08:01 1105529 01c66000-01c98000 rw-p 00000000 00:00 0 7f680c000000-7f680c021000 rw-p 00000000 00:00 0
7f680c021000-7f6810000000 ---p 00000000 00:00 0
7f68136c6000-7f68136cb000 r-xp 00000000 08:01 791415 7f68136cb000-7f68138ca000 ---p 00005000 08:01 791415 7f68138ca000-7f68138cb000 r--p 00004000 08:01 791415 7f68138cb000-7f68138cc000 rw-p 00005000 08:01 791415 7f68138cc000-7f6815182000 r-xp 00000000 08:01 790027 7f6815182000-7f6815381000 ---p 018b6000 08:01 790027 7f6815381000-7f6815382000 r--p 018b5000 08:01 790027 7f6815382000-7f6815383000 rw-p 018b6000 08:01 790027 7f6815383000-7f6815393000 r-xp 00000000 08:01 835397 7f6815393000-7f6815593000 ---p 00010000 08:01 835397 7f6815593000-7f6815594000 r--p 00010000 08:01 835397 7f6815594000-7f6815595000 rw-p 00011000 08:01 835397 7f6815595000-7f681559a000 r-xp 00000000 08:01 798499 7f681559a000-7f6815799000 ---p 00005000 08:01 798499 7f6815799000-7f681579a000 r--p 00004000 08:01 798499 7f681579a000-7f681579b000 rw-p 00005000 08:01 798499 7f681579b000-7f681579f000 r-xp 00000000 08:01 797964 7f681579f000-7f681599e000 ---p 00004000 08:01 797964 7f681599e000-7f681599f000 r--p 00003000 08:01 797964 7f681599f000-7f68159a0000 rw-p 00004000 08:01 797964 7f68159a0000-7f68159b7000 r-xp 00000000 08:01 798497 7f68159b7000-7f6815bb6000 ---p 00017000 08:01 798497 7f6815bb6000-7f6815bb8000 r--p 00016000 08:01 798497 7f6815bb8000-7f6815bb9000 rw-p 00018000 08:01 798497 7f6815bb9000-7f6815bba000 r-xp 00000000 08:01 791427 7f6815bba000-7f6815db9000 ---p 00001000 08:01 791427 7f6815db9000-7f6815dba000 r--p 00000000 08:01 791427 7f6815dba000-7f6815dbb000 rw-p 00001000 08:01 791427 7f6815dbb000-7f6815dc0000 r-xp 00000000 08:01 798020 7f6815dc0000-7f6815fbf000 ---p 00005000 08:01 798020 7f6815fbf000-7f6815fc0000 r--p 00004000 08:01 798020 7f6815fc0000-7f6815fc1000 rw-p 00005000 08:01 798020 7f6815fc1000-7f6815fc3000 r-xp 00000000 08:01 798024 7f6815fc3000-7f68161c2000 ---p 00002000 08:01 798024 7f68161c2000-7f68161c3000 r--p 00001000 08:01 798024 7f68161c3000-7f68161c4000 rw-p 00002000 08:01 798024 7f68161c4000-7f68161f0000 r-xp 00000000 08:01 798503 7f68161f0000-7f68163ef000 ---p 0002c000 08:01 798503 7f68163ef000-7f68163f3000 r--p 0002b000 08:01 798503 7f68163f3000-7f68163f4000 rw-p 0002f000 08:01 798503 7f68163f4000-7f68163f5000 rw-p 00000000 00:00 0
7f68163f5000-7f68163f6000 r-xp 00000000 08:01 797974 7f68163f6000-7f68165f6000 ---p 00001000 08:01 797974 7f68165f6000-7f68165f7000 r--p 00001000 08:01 797974 7f68165f7000-7f68165f8000 rw-p 00002000 08:01 797974 7f68165f8000-7f68165fd000 r-xp 00000000 08:01 797970 7f68165fd000-7f68167fd000 ---p 00005000 08:01 797970 7f68167fd000-7f68167fe000 r--p 00005000 08:01 797970 7f68167fe000-7f68167ff000 rw-p 00006000 08:01 797970 7f68167ff000-7f6816801000 r-xp 00000000 08:01 797968 7f6816801000-7f6816a00000 ---p 00002000 08:01 797968 7f6816a00000-7f6816a01000 r--p 00001000 08:01 797968 7f6816a01000-7f6816a02000 rw-p 00002000 08:01 797968 7f6816a02000-7f6816a04000 r-xp 00000000 08:01 797966 7f6816a04000-7f6816c03000 ---p 00002000 08:01 797966 7f6816c03000-7f6816c04000 r--p 00001000 08:01 797966 7f6816c04000-7f6816c05000 rw-p 00002000 08:01 797966 7f6816c05000-7f6816c29000 r-xp 00000000 08:01 797879 7f6816c29000-7f6816e28000 ---p 00024000 08:01 797879 7f6816e28000-7f6816e2a000 r--p 00023000 08:01 797879 7f6816e2a000-7f6816e2b000 rw-p 00025000 08:01 797879 7f6816e2b000-7f6816e4c000 r-xp 00000000 08:01 791419 7f6816e4c000-7f681704b000 ---p 00021000 08:01 791419 7f681704b000-7f681704c000 r--p 00020000 08:01 791419 7f681704c000-7f681704d000 rw-p 00021000 08:01 791419 7f681704d000-7f6817051000 r-xp 00000000 08:01 1044594 7f6817051000-7f6817250000 ---p 00004000 08:01 1044594 7f6817250000-7f6817251000 r--p 00003000 08:01 1044594 7f6817251000-7f6817252000 rw-p 00004000 08:01 1044594 7f6817252000-7f6817259000 r-xp 00000000 08:01 788695 7f6817259000-7f6817458000 ---p 00007000 08:01 788695 7f6817458000-7f6817459000 r--p 00006000 08:01 788695 7f6817459000-7f681745a000 rw-p 00007000 08:01 788695 7f681745a000-7f68174c8000 r-xp 00000000 08:01 1044614 7f68174c8000-7f68176c8000 ---p 0006e000 08:01 1044614 7f68176c8000-7f68176c9000 r--p 0006e000 08:01 1044614 7f68176c9000-7f68176ca000 rw-p 0006f000 08:01 1044614 7f68176ca000-7f68176cc000 r-xp 00000000 08:01 791411 7f68176cc000-7f68178cc000 ---p 00002000 08:01 791411 7f68178cc000-7f68178cd000 r--p 00002000 08:01 791411 7f68178cd000-7f68178ce000 rw-p 00003000 08:01 791411 7f68178ce000-7f6817930000 r-xp 00000000 08:01 798237 7f6817930000-7f6817b30000 ---p 00062000 08:01 798237 7f6817b30000-7f6817b31000 r--p 00062000 08:01 798237 7f6817b31000-7f6817b36000 rw-p 00063000 08:01 798237 7f6817b36000-7f6817b37000 rw-p 00000000 00:00 0
7f6817b37000-7f6817b5d000 r-xp 00000000 08:01 1044753 7f6817b5d000-7f6817d5d000 ---p 00026000 08:01 1044753 7f6817d5d000-7f6817d5f000 r--p 00026000 08:01 1044753 7f6817d5f000-7f6817d60000 rw-p 00028000 08:01 1044753 7f6817d60000-7f6817dc4000 r-xp 00000000 08:01 798488 7f6817dc4000-7f6817fc4000 ---p 00064000 08:01 798488 7f6817fc4000-7f6817fc5000 r--p 00064000 08:01 798488 7f6817fc5000-7f6817fc6000 rw-p 00065000 08:01 798488 7f6817fc6000-7f6818145000 r-xp 00000000 08:01 790031 7f6818145000-7f6818345000 ---p 0017f000 08:01 790031 7f6818345000-7f6818355000 r--p 0017f000 08:01 790031 7f6818355000-7f6818356000 rw-p 0018f000 08:01 790031 7f6818356000-7f681835a000 rw-p 00000000 00:00 0
7f681835a000-7f68185ac000 r-xp 00000000 08:01 790028 7f68185ac000-7f68187ac000 ---p 00252000 08:01 790028 7f68187ac000-7f68187bb000 r--p 00252000 08:01 790028 7f68187bb000-7f68187bc000 rw-p 00261000 08:01 790028 7f68187bc000-7f681882c000 r-xp 00000000 08:01 809748 7f681882c000-7f6818a2b000 ---p 00070000 08:01 809748 7f6818a2b000-7f6818a2e000 r--p 0006f000 08:01 809748 7f6818a2e000-7f6818a2f000 rw-p 00072000 08:01 809748 7f6818a2f000-7f6818a30000 rw-p 00000000 00:00 0
7f6818a30000-7f6818a8c000 r-xp 00000000 08:01 797882 7f6818a8c000-7f6818c8c000 ---p 0005c000 08:01 797882 7f6818c8c000-7f6818c8d000 r--p 0005c000 08:01 797882 7f6818c8d000-7f6818c8e000 rw-p 0005d000 08:01 797882 7f6818c8e000-7f6818cad000 r-xp 00000000 08:01 797935 7f6818cad000-7f6818ead000 ---p 0001f000 08:01 797935 7f6818ead000-7f6818eae000 r--p 0001f000 08:01 797935 7f6818eae000-7f6818eaf000 rw-p 00020000 08:01 797935 7f6818eaf000-7f6818eb6000 r-xp 00000000 08:01 1057004 7f6818eb6000-7f68190b5000 ---p 00007000 08:01 1057004 7f68190b5000-7f68190b6000 r--p 00006000 08:01 1057004 7f68190b6000-7f68190b7000 rw-p 00007000 08:01 1057004 7f68190b7000-7f68190ba000 r-xp 00000000 08:01 1057007 7f68190ba000-7f68192b9000 ---p 00003000 08:01 1057007 7f68192b9000-7f68192ba000 r--p 00002000 08:01 1057007 7f68192ba000-7f68192bb000 rw-p 00003000 08:01 1057007 7f68192bb000-7f68193c3000 r-xp 00000000 08:01 1057026 7f68193c3000-7f68195c2000 ---p 00108000 08:01 1057026 7f68195c2000-7f68195c3000 r--p 00107000 08:01 1057026 7f68195c3000-7f68195c4000 rw-p 00108000 08:01 1057026 7f68195c4000-7f68196f9000 r-xp 00000000 08:01 790248 7f68196f9000-7f68198f9000 ---p 00135000 08:01 790248 7f68198f9000-7f68198fa000 r--p 00135000 08:01 790248 7f68198fa000-7f68198fe000 rw-p 00136000 08:01 790248 7f68198fe000-7f681990f000 r-xp 00000000 08:01 791433 7f681990f000-7f6819b0e000 ---p 00011000 08:01 791433 7f6819b0e000-7f6819b0f000 r--p 00010000 08:01 791433 7f6819b0f000-7f6819b10000 rw-p 00011000 08:01 791433 7f6819b10000-7f6819b19000 r-xp 00000000 08:01 797841 7f6819b19000-7f6819d18000 ---p 00009000 08:01 797841 7f6819d18000-7f6819d19000 r--p 00008000 08:01 797841 7f6819d19000-7f6819d1a000 rw-p 00009000 08:01 797841 7f6819d1a000-7f6819d29000 r-xp 00000000 08:01 798026 7f6819d29000-7f6819f28000 ---p 0000f000 08:01 798026 7f6819f28000-7f6819f29000 r--p 0000e000 08:01 798026 7f6819f29000-7f6819f2a000 rw-p 0000f000 08:01 798026 7f6819f2a000-7f6819f40000 r-xp 00000000 08:01 798227 7f6819f40000-7f681a13f000 ---p 00016000 08:01 798227 7f681a13f000-7f681a140000 r--p 00015000 08:01 798227 7f681a140000-7f681a141000 rw-p 00016000 08:01 798227 7f681a141000-7f681a144000 rw-p 00000000 00:00 0
7f681a144000-7f681a14b000 r-xp 00000000 08:01 798235 7f681a14b000-7f681a34a000 ---p 00007000 08:01 798235 7f681a34a000-7f681a34b000 r--p 00006000 08:01 798235 7f681a34b000-7f681a34c000 rw-p 00007000 08:01 798235 7f681a34c000-7f681a39e000 r-xp 00000000 08:01 798823 7f681a39e000-7f681a59d000 ---p 00052000 08:01 798823 7f681a59d000-7f681a59e000 r--p 00051000 08:01 798823 7f681a59e000-7f681a59f000 rw-p 00052000 08:01 798823 7f681a59f000-7f681a643000 r-xp 00000000 08:01 784851 7f681a643000-7f681a842000 ---p 000a4000 08:01 784851 7f681a842000-7f681a848000 r--p 000a3000 08:01 784851 7f681a848000-7f681a849000 rw-p 000a9000 08:01 784851 7f681a849000-7f681a862000 r-xp 00000000 08:01 1044506 7f681a862000-7f681aa61000 ---p 00019000 08:01 1044506 7f681aa61000-7f681aa62000 r--p 00018000 08:01 1044506 7f681aa62000-7f681aa63000 rw-p 00019000 08:01 1044506 7f681aa63000-7f681aa87000 r-xp 00000000 08:01 1057468 7f681aa87000-7f681ac86000 ---p 00024000 08:01 1057468 7f681ac86000-7f681ac87000 r--p 00023000 08:01 1057468 7f681ac87000-7f681ac88000 rw-p 00024000 08:01 1057468 7f681ac88000-7f681ad97000 r-xp 00000000 08:01 1045210 7f681ad97000-7f681af96000 ---p 0010f000 08:01 1045210 7f681af96000-7f681af97000 r--p 0010e000 08:01 1045210 7f681af97000-7f681af98000 rw-p 0010f000 08:01 1045210 7f681af98000-7f681af99000 rw-p 00000000 00:00 0
7f681af99000-7f681afb0000 r-xp 00000000 08:01 798248 7f681afb0000-7f681b1b0000 ---p 00017000 08:01 798248 7f681b1b0000-7f681b1b1000 r--p 00017000 08:01 798248 7f681b1b1000-7f681b1b2000 rw-p 00018000 08:01 798248 7f681b1b2000-7f681b1ca000 r-xp 00000000 08:01 1057009 7f681b1ca000-7f681b3c9000 ---p 00018000 08:01 1057009 7f681b3c9000-7f681b3ca000 r--p 00017000 08:01 1057009 7f681b3ca000-7f681b3cb000 rw-p 00018000 08:01 1057009 7f681b3cb000-7f681b3cf000 rw-p 00000000 00:00 0
7f681b3cf000-7f681b40c000 r-xp 00000000 08:01 797802 7f681b40c000-7f681b60b000 ---p 0003d000 08:01 797802 7f681b60b000-7f681b60d000 r--p 0003c000 08:01 797802 7f681b60d000-7f681b612000 rw-p 0003e000 08:01 797802 7f681b612000-7f681bad7000 r-xp 00000000 08:01 798492 7f681bad7000-7f681bae3000 r--p 004c4000 08:01 798492 7f681bae3000-7f681bae4000 rw-p 004d0000 08:01 798492 7f681bae4000-7f681bae8000 rw-p 00000000 00:00 0
7f681bae8000-7f681c00f000 r-xp 00000000 08:01 798549 7f681c00f000-7f681c010000 ---p 00527000 08:01 798549 7f681c010000-7f681c025000 r--p 00527000 08:01 798549 7f681c025000-7f681c02b000 rw-p 0053c000 08:01 798549 7f681c02b000-7f681c030000 rw-p 00000000 00:00 0
7f681c030000-7f681c689000 r-xp 00000000 08:01 798561 7f681c689000-7f681c6b7000 r--p 00658000 08:01 798561 7f681c6b7000-7f681c6bc000 rw-p 00686000 08:01 798561 7f681c6bc000-7f681c6bd000 rw-p 00000000 00:00 0
7f681c6bd000-7f681c7d7000 r-xp 00000000 08:01 796336 7f681c7d7000-7f681c9d6000 ---p 0011a000 08:01 796336 7f681c9d6000-7f681c9da000 r--p 00119000 08:01 796336 7f681c9da000-7f681c9db000 rw-p 0011d000 08:01 796336 7f681c9db000-7f681cb9b000 r-xp 00000000 08:01 1057023 7f681cb9b000-7f681cd9b000 ---p 001c0000 08:01 1057023 7f681cd9b000-7f681cd9f000 r--p 001c0000 08:01 1057023 7f681cd9f000-7f681cda1000 rw-p 001c4000 08:01 1057023 7f681cda1000-7f681cda5000 rw-p 00000000 00:00 0
7f681cda5000-7f681cdbb000 r-xp 00000000 08:01 1044576 7f681cdbb000-7f681cfba000 ---p 00016000 08:01 1044576 7f681cfba000-7f681cfbb000 rw-p 00015000 08:01 1044576 7f681cfbb000-7f681d12d000 r-xp 00000000 08:01 786205 7f681d12d000-7f681d32d000 ---p 00172000 08:01 786205 7f681d32d000-7f681d337000 r--p 00172000 08:01 786205 7f681d337000-7f681d339000 rw-p 0017c000 08:01 786205 7f681d339000-7f681d33d000 rw-p 00000000 00:00 0
7f681d33d000-7f681d624000 r-xp 00000000 08:01 835439 7f681d624000-7f681d824000 ---p 002e7000 08:01 835439 7f681d824000-7f681d82e000 r--p 002e7000 08:01 835439 7f681d82e000-7f681d82f000 rw-p 002f1000 08:01 835439 7f681d82f000-7f681d830000 rw-p 00000000 00:00 0
7f681d830000-7f681e2dc000 r-xp 00000000 08:01 835514 7f681e2dc000-7f681e4db000 ---p 00aac000 08:01 835514 7f681e4db000-7f681e519000 r--p 00aab000 08:01 835514 7f681e519000-7f681e520000 rw-p 00ae9000 08:01 835514 7f681e520000-7f681e524000 rw-p 00000000 00:00 0 s/1/build-untitled-Desktop-Debug/untitled *** Error in `/home/d/qtProjects/1/build-untitled-Desktop-Debug/untitled': realloc(): invalid pointer: 0x00007f681d82e820 ***
27e5]
81ca5fa08]
ata7reallocEi+0x1f)[0x7f681b71c9cf]
ata6appendEi+0x81)[0x7f681b71caa1]
[0x7f681b7e8d78]
gisterResourceDataiPKhS0_S0+0x2e6)[0x7f681b7e4b16]
0x7f681b68dcc3]
]
]
br> /home/d/qtProjects/1/build-untitled-Desktop-Debug/untitled
/home/d/qtProjects/1/build-untitled-Desktop-Debug/untitled
/home/d/qtProjects/1/build-untitled-Desktop-Debug/untitled
[heap]
/usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
/usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
/usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
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/usr/lib/x86_64-linux-gnu/libicuuc.so.55.1
/usr/lib/x86_64-linux-gnu/libicui18n.so.55.1
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/usr/lib/x86_64-linux-gnu/libicui18n.so.55.1
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/usr/lib/x86_64-linux-gnu/libproxy.so.1.0.0
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/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.5.1
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1
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/lib/x86_64-linux-gnu/libc-2.23.so
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/lib/x86_64-linux-gnu/libc-2.23.so
/lib/x86_64-linux-gnu/libc-2.23.so
/lib/x86_64-linux-gnu/libgcc_s.so.1
/lib/x86_64-linux-gnu/libgcc_s.so.1
/lib/x86_64-linux-gnu/libgcc_s.so.1
/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21
/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21
/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21
/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21
/usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.7
/usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.7
/usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.7
/usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.7
/usr/lib/x86_64-linux-gnu/libQtGui.so.4.8.7
/usr/lib/x86_64-linux-gnu/libQtGui.so.4.8.7
/usr/lib/x86_64-linux-gnu/libQtGui.so.4.8.7
/usr/lib/x86_64-linux-gnu/libQtGui.so.4.8.7

bicobus · 2019-05-30T19:31:57Z

Using cmake version 3.13.2 with flag -DUSE_QT5=1 works just fine on my PyQt5 app.
gdb.log.gz

gipi · 2020-08-26T10:54:25Z

I have the same problem in Ubuntu 20.04 (QT5) and troubleshooting, it seems that in the library lib/libQtInspector.so the function qtInspectorInit() is not called, so the socket is not created by InspectorServer() and in my case the code is hanging at

	QString socketPath = InspectorServer::socketName(*pid);
	while (!QFile::exists(socketPath))
	{
#ifdef Q_OS_UNIX
		usleep(100 * 1000);
#endif
	}

(PreloadInjector.cpp). In particular analyzing a little more I found that QMetaObject::invokeMethod(this, "runInitFunc", Qt::QueuedConnection) is exeuted but StartupHelper::runInitFunct() is not.

nyanpasu64 changed the title ~~Doesn't work~~ Hangs or crashes on Kubuntu 18.04 Apr 9, 2019

nyanpasu64 changed the title ~~Hangs or crashes on Kubuntu 18.04~~ Hangs or crashes on Kubuntu 18.04, system Qt and PyQt Apr 9, 2019

robertknight added the question Further information needed label Apr 27, 2019

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Hangs or crashes on Kubuntu 18.04, system Qt and PyQt #18

Hangs or crashes on Kubuntu 18.04, system Qt and PyQt #18

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Hangs or crashes on Kubuntu 18.04, system Qt and PyQt #18

Hangs or crashes on Kubuntu 18.04, system Qt and PyQt #18

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nyanpasu64 commented Apr 9, 2019 • edited Loading

Debugging Konsole crash

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