[QGIS-Developer] QtCreator does not start QGIS?

[Alessandro Pasotti]

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>
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
> >
> > 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
> >>
> >> 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
> >>
> >> 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 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 timed out
> >>>
> >>> I am connected, and 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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