Solved Windows Qt Creator freezing within VirtualBox

[aha_1980]

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

[mrjj]

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 )

[aha_1980]

@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!

[mrjj]

@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 :)

[J.Hilk]

@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.

[aha_1980]

@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

[mrjj]

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.

[aha_1980]

@mrjj you're the best :)

[mrjj]

@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 ?

[aha_1980]

@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:

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:

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.

[mrjj]

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.

1 GB updates..:)

[aha_1980]

@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

[JonB]

@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...?

[aha_1980]

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

[J.Hilk]

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

[aha_1980]

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

[mrjj]

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