QTCreator 5.4.1 startup Segmentation Fault

Simo80

Hi,
I'm new.
I have a problem with XUbuntu and QtCreator.
when I try to startup qtCreator by script qtcreator.sh in Qt5.4.1/Tools/QtCreator/bin/ I receive this message:

QFactoryLoader::QFactoryLoader() checking directory path "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqeglfs.so"
Found metadata in lib /home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqeglfs.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.2",
    "MetaData": {
        "Keys": [
            "eglfs"
        ]
    },
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 328705
}


Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() looking at "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqlinuxfb.so"
Found metadata in lib /home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqlinuxfb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.2",
    "MetaData": {
        "Keys": [
            "linuxfb"
        ]
    },
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 328705
}


Got keys from plugin meta data ("linuxfb")
QFactoryLoader::QFactoryLoader() looking at "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqminimal.so"
Found metadata in lib /home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqminimal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.2",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 328705
}


Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqminimalegl.so"
Found metadata in lib /home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqminimalegl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.2",
    "MetaData": {
        "Keys": [
            "minimalegl"
        ]
    },
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 328705
}


Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqoffscreen.so"
Found metadata in lib /home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqoffscreen.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.2",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 328705
}


Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqxcb.so"
Found metadata in lib /home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqxcb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.2",
    "MetaData": {
        "Keys": [
            "xcb"
        ]
    },
    "className": "QXcbIntegrationPlugin",
    "debug": false,
    "version": 328705
}


Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/platforms" ...
loaded library "/home/pluservice/Qt5.4.1/Tools/QtCreator/bin/plugins/platforms/libqxcb.so"
Errore di segmentazione (core dump creato)

thanks

hskoglund

Hi, just guessing but you try starting Qt Creator without the Welcome plugin, type this in Terminal:
./qtcreator.sh -noload Welcome

Simo80

@hskoglund said:

./qtcreator.sh -noload Welcome

thanks for reply.
but It doesn't resolve the problem

hskoglund

Ok, maybe time for some diagnostics to see where the problem is:
strace ./qtcreator.sh

Simo80

@hskoglund said:

strace ./qtcreator.sh

I can't add the strace dump, it's out of max lenght

jsulm

Interesting is usually what is at the end where the application crashes.

Simo80

@jsulm said:

Interesting is usually what is at the end where the application crashes

ok

writev(3, [{"\203\1\6\0\17\0\0\0", 8}, {"XInputExtension", 15}, {"\0", 1}], 3) = 24
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"b\1\6\0\17\0\0\0", 8}, {"XInputExtension", 15}, {"\0", 1}], 3) = 24
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"b\1\10\0\27\0\0\0", 8}, {"Generic Event Extension", 23}, {"\0", 1}], 3) = 32
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\200\0\2\0\1\0\0\0", 8}, {NULL, 0}, {"", 0}], 3) = 8
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\203\1\6\0\17\0\0\0", 8}, {"XInputExtension", 15}, {"\0", 1}], 3) = 24
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\203/\2\0\2\0\2\0", 8}, {NULL, 0}, {"", 0}], 3) = 8
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\2030\2\0\0\0\2\0", 8}, {NULL, 0}, {"", 0}], 3) = 8
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\2030\2\0\4\0\2\0", 8}, {NULL, 0}, {"", 0}], 3) = 8
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\2030\2\0\10\0\2\0", 8}, {NULL, 0}, {"", 0}], 3) = 8
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\201\0\1\0", 4}], 1)       = 4
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xbfca6ecc, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xbfca6ed0, FUTEX_WAIT_PRIVATE, 1, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 0
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\207\0\2\0\1\0\0\0", 8}], 1) = 8
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xbfca6e5c, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xbfca6e60, FUTEX_WAIT_PRIVATE, 1, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 0
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\207\1\4\0\0\1\7\0\0\0\7\0\377\0\377\0+\0\1\0", 20}], 1) = 20
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xbfca6e5c, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xbfca6e60, FUTEX_WAIT_PRIVATE, 1, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x80a25ec, FUTEX_WAKE_PRIVATE, 1) = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xc} ---
+++ killed by SIGSEGV (core dumped) +++

hskoglund

Hi just guessing (again!) but when googling, some people recommend typing this in Terminal:
sudo apt-get install libx11-xcb1

Simo80

@hskoglund said:

sudo apt-get install libx11-xcb1

Ok
I try it but nothing.
for a moment qtCreator started but after crash and the problem come back.

hskoglund

Hmmm, maybe try upgrading to Qt 5.5.1.