Windows Qt Creator freezing within VirtualBox


  • Qt Champions 2018

    Hi, I have a strange problem with newer Qt Creator versions (starting with 4.8): When I run Windows 7 x64 in VirtualBox 5.2.28, Qt Creator randomly freezes during compiling or debugging, sometimes even editing.

    Disabling the Clang Code Model improves things, but does not completely fix the issue. I already disabled the QML related plugins...

    I'm now back to 4.7.2 which does not seem to have such problems.

    Has anyone else encountered such problems?

    Regards


  • Lifetime Qt Champion

    Hi
    Well, we only used Creator < 4.8 in VBox so far.
    (using VMware for the dev box at work with 4.8 Creator)

    Since simply downgrading to 4.7.2 and all works good again, it rules out
    any issues with the VM os itself or VBox.

    What Windows are you using as guest ?
    Are you using an SSD to host the virtual disk ?

    I can try tomorrow installing same windows in Vbox and newest creator to see if
    I can reproduce it.

    I assume you are on linux ? ( the host )


  • Qt Champions 2018

    @mrjj

    What Windows are you using as guest ?
    Are you using an SSD to host the virtual disk ?

    Windows 7 x64 (I edited my post), and yes on SSD.

    I can try tomorrow installing same windows in Vbox and newest creator to see if I can reproduce it.

    Thanks, that's awesome!

    I assume you are on linux ? ( the host )

    Yes. I have two machines with this problem, and one native Win7 running rock-stable.

    Thanks again!


  • Lifetime Qt Champion

    @aha_1980
    well even it would be windows on windows for me i think its still a solid test and
    been wanting to try virtual box at a newer version for some time :)


  • Moderators

    @aha_1980
    I think I had this once on my main windows pc, where it every now and than froce during compilation.

    IIRC that "fixed itself". During the next update my installation was totally broken and I ended up completely reinstalling QtC and Qt and I don't think it happened since then.


  • Qt Champions 2018

    @J.Hilk said in Windows Qt Creator freezing within VirtualBox:

    IIRC that "fixed itself". During the next update my installation was totally broken and I ended up completely reinstalling QtC and Qt

    Yeah sometimes that helps.

    Thanks - your description sounds exactly like my issue. I still hope to solve it without complete reinstallation, though.

    Regards


  • Lifetime Qt Champion

    Hi
    Used VBox 5.2.28 and win 7 64bit and so far i have not seen
    any freezes.
    I noticed that a newer version has come out. it could be worth trying.

    I will use it some more tomorrow to see if i can get it to be funky.


  • Qt Champions 2018

    @mrjj you're the best :)


  • Lifetime Qt Champion

    @aha_1980
    :)) \o/
    Actually, i must say VBox actually feels
    faster with a Windows 7 than it does in vmware.
    I notice that QML was a bit unhappy about the openGl.
    I did install the addons but didnt enable openGL in settings (somewhere)

    Do you have openGL on ?


  • Qt Champions 2018

    @mrjj said in Windows Qt Creator freezing within VirtualBox:

    I did install the addons but didnt enable openGL in settings (somewhere)
    Do you have openGL on ?

    I don't even know how to do that.

    These are my machine graphics settings:
    0_1556687632317_0c42fa3c-9952-470a-b424-21b40036538e-image.png

    When installing the Guest Additions, I did not choose the experimental Direct3D support.

    I'm currently indeed reinstalling Qt on one system. Let's see how it goes.

    Edit: on first start, following dialog appears:

    0_1556687863200_0d2d81cb-a44d-4769-a581-bf9a3171bcbe-image.png

    So indeed no OpenGL

    And after running one of the examples, I have these in my Application Output:

    07:20:28: Starting C:\Qt\Examples\Qt-5.12.3\widgets\itemviews\build-editabletreemodel-Desktop_Qt_5_12_3_MSVC2017_32bit-Debug\debug\editabletreemodel.exe ...
    OpenGL Warning: State tracker is being re-initialized..
    
    OpenGL Warning: Assertion failed: g_pAvailableContexts[ctx->id] == ctx=0, file D:\tinderbox\add-5.2\src\VBox\GuestHost\OpenGL\state_tracker\state_init.c, line 443
    OpenGL Warning: freeing context 01ff0020, id(0) not being in the context list
    OpenGL Warning: State tracker is being re-initialized..
    
    OpenGL Warning: Assertion failed: g_pAvailableContexts[ctx->id] == ctx=0, file D:\tinderbox\add-5.2\src\VBox\GuestHost\OpenGL\state_tracker\state_init.c, line 443
    OpenGL Warning: freeing context 04600020, id(0) not being in the context list
    07:20:35: C:/Qt/Examples/Qt-5.12.3/widgets/itemviews/build-editabletreemodel-Desktop_Qt_5_12_3_MSVC2017_32bit-Debug/debug/editabletreemodel.exe exited with code 0
    

    So OpenGL could really be a problem.


  • Lifetime Qt Champion

    Hi
    Ok, it is on. (3d -Beschleunigung )
    But i guess its not good enough for QML. hence the warning

    I have 4 cores assigned. Are you using it on ryzen and have like 8 ?

    So far no freezes.

    Im going to mega update win 7 and see if that makes a difference.
    alt text
    1 GB updates..:)


  • Qt Champions 2018

    @mrjj

    But i guess its not good enough for QML. hence the warning

    Probably. I disabled the two plugins, as I don't need them.

    I have 4 cores assigned. Are you using it on ryzen and have like 8 ?

    No, only six cores. I'm running it on a Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz notebook.

    After the re-installation (Qt 5.12.3 MSVC2017, Visual Studio Build tools) it works quite well. I've compiled QtCreator from source (takes 17 minutes and is therefore faster than on the Linux host - interesting btw.) and debugged a smaller program. So far without crashes or freezes.

    I will try next time on my development machine (the Ryzen), but I really think it's just some installation hickup.

    @J-Hilk: I guess I owe you a beer @ Qt World Summit ( @mrjj: I hope we can have one too :))

    Regards



  • @aha_1980
    Throw away comment: I use VirtualBox, but on Windows host for Linux guest. In this VB (at least), on Settings, Display tab, there are options for both 3D and 2D acceleration. I found I had to switch both off (i.e. including the 2D) to get reliable Qt application/Creator behaviour. Just a thought if further odd behaviour...?


  • Qt Champions 2018

    @JonB Thanks for the hint, I will take it into account if the reinstallation does not help.


  • Moderators

    @aha_1980 ;-) I'm all for it, of course.


  • Qt Champions 2018

    I now reinstalled Qt and Creator on my workstation too.

    So far, no freezes - let's cross fingers.

    Thank you all for your help :)

    Regards


  • Lifetime Qt Champion

    @aha_1980
    That is good news.
    Besides getting slower after being patched to death,
    i did not experience any freezing.