[QGIS-Developer] QtCreator does not start QGIS?

[Sandro Mani]

As for Fedora, F33 and F34 have fixed packages, but I see that the F33 
update was never submitted by the maintainer - I've done so now [1].

Best
Sandro

[1] https://bodhi.fedoraproject.org/updates/FEDORA-2020-1893aa323f


On 12.11.20 19:17, Alessandro Pasotti wrote:
> I switched to QT binaries and sources provided by the QT maintenance 
> tool and that's my way to Nirvana.
>
> I self-build PyQt all the others dependencies.
>
> Cheers
>
>
>
> On Thu, Nov 12, 2020, 18:51 Richard Duivenvoorde <rdmailings at duif.net 
> <mailto:rdmailings at duif.net>> wrote:
>
>     Ough, yes, that looks like it (5.15.1)...
>
>     Thanks Sandro for checking.
>
>     The 'random' qtcreator crashes at startup indeed all show
>     'sigtraps'...
>     And I also thought that it has something todo with the
>     process.start stuff.
>
>     I see QProcess in a lot of places, so I do not think I can disable
>     parts of QGIS compile?
>
>     Mmm this is bad (for me & other Testing Debianista's). Hoping
>     there will be a fixed version (qt) soon..
>     Other options?
>     Downgrade Qt?
>     Compile Qt myself?
>     Install Fedora on another machine (which Qt is there?)?
>
>     Sigh 0o.
>
>     Richard
>
>     On 11/12/20 6:00 PM, Sandro Mani wrote:
>     > Hi Richard
>     >
>     > If you are using Qt5.15.{0,1} and are getting random SIGTRAPS,
>     or the process segfaulting straight after starting through gdb,
>     this might be [1].
>     >
>     > Sandro
>     >
>     > [1] https://bugreports.qt.io/browse/QTBUG-86319
>     <https://bugreports.qt.io/browse/QTBUG-86319>
>     >
>     > On 12.11.20 15:45, Richard Duivenvoorde wrote:
>     >> Still having troubles starting QGIS in debug in QtCreator in my
>     setup today.
>     >>
>     >> See https://duif.net/qc.png <https://duif.net/qc.png>
>     >>
>     >> So QGIS (in QtCreator) starts, and during startup it stops and
>     shows me the dissassembler(?) view. Sometimes I can see something
>     (like in this screendump: something with libnss ?) sometimes all
>     is white/empty.
>     >>
>     >> Last this I in the log is: "Destroyed while process ("whoami"),
>     which according to git is recently changed but... does not seem
>     related to me:
>     >>
>     https://github.com/qgis/QGIS/commit/7a38388a8762503b0bdba55065fffea2ff24137a
>     <https://github.com/qgis/QGIS/commit/7a38388a8762503b0bdba55065fffea2ff24137a>
>     >>
>     >> Regards,
>     >>
>     >> Richard
>     >>
>     >>
>     >>
>     >> On 11/11/20 9:16 AM, Richard Duivenvoorde wrote:
>     >>> Hi,
>     >>>
>     >>> Currently in my Qt build I cannot debug QGIS in qtcreator
>     because it hangs/stops when showing the splash.
>     >>> After some time the Application Output shows:
>     >>>
>     >>> ../../src/core/qgsmessagelog.cpp:29 : (logMessage) [60891ms]
>     [thread:0x5555560d9d00] 2020-11-11T08:58:15 [1] HTTP fetch
>     https://feed.qgis.org/?after=1605081272&lang=en
>     <https://feed.qgis.org/?after=1605081272&lang=en> failed with
>     error Operation canceled
>     >>> ../../src/core/qgsmessagelog.cpp:29 : (logMessage) [0ms]
>     [thread:0x5555560d9d00] 2020-11-11T08:58:15 Network[1] Network
>     request https://feed.qgis.org/?after=1605081272&lang=en
>     <https://feed.qgis.org/?after=1605081272&lang=en> timed out
>     >>>
>     >>> I am connected, and
>     https://feed.qgis.org/?after=1605081272&lang=en
>     <https://feed.qgis.org/?after=1605081272&lang=en> is available
>     from my browser.
>     >>>
>     >>> Disabling: 'Show QGIS news feed on welcome page' and 'Check
>     QGIS version at startup' fix this.
>     >>>
>     >>> Others have this issue currently?
>     >>>
>     >>> (I hit my head also with this sometimes when in mixed/http
>     proxied environments
>     >>> I still think we should use 'opt in' for these 'QGIS phoning
>     home stuff' instead of 'opt out')
>     >>>
>     >>> Regards,
>     >>>
>     >>> Richard Duivenvoorde
>     >>>
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