Freeze on loading project with Kontakt VST plugin #1008

abduelhamit · 2014-07-18T22:20:58Z

Hey there,
Kontakt 5 Player works fine with LMMS 1.0.2 until I save and load my project.
While loading the project, the plugin loads but LMMS freezes before finishing. I think it has trouble loading the plugin settings.
My OS is Win 8 64 Bit.

vultraz168 · 2014-11-02T22:08:57Z

Confirm. Kontakt runs fine on LMMS 1.0.3 w/ no issues until loading the project...

tresf · 2014-11-03T00:12:59Z

Possible duplicate #1049

tresf · 2015-01-10T02:36:56Z

@Umcaruje do you have the ability to do an interim Windows build to see if #1049 fixes this?

Umcaruje · 2015-01-10T13:58:54Z

@Umcaruje do you have the ability to do an interim Windows build to see if #1049 fixes this?

Yeah, will do. master branch, right?

tresf · 2015-01-10T14:23:32Z

Yeah, will do. master branch, right?

👍

Umcaruje · 2015-01-10T14:26:03Z

Well, just got an error with gigplayer while compiling:

Scanning dependencies of target gigplayer
[ 81%] Building CXX object plugins/GigPlayer/CMakeFiles/gigplayer.dir/GigPlayer.obj
In file included from /home/umcaruje/lmms/plugins/GigPlayer/GigPlayer.h:42:0,
                 from /home/umcaruje/lmms/plugins/GigPlayer/GigPlayer.cpp:39:
/opt/mingw32/include/gig.h:434:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Sampler::UnityNote;
             ^
/opt/mingw32/include/gig.h:435:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Sampler::FineTune;
             ^
/opt/mingw32/include/gig.h:436:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Sampler::Gain;
             ^
/opt/mingw32/include/gig.h:437:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Sampler::SampleLoops;
             ^
/opt/mingw32/include/gig.h:438:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Sampler::pSampleLoops;
             ^
/opt/mingw32/include/gig.h:455:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Sampler::AddSampleLoop;
             ^
/opt/mingw32/include/gig.h:456:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Sampler::DeleteSampleLoop;
             ^
In file included from /home/umcaruje/lmms/plugins/GigPlayer/GigPlayer.h:42:0,
                 from /home/umcaruje/lmms/plugins/GigPlayer/GigPlayer.cpp:39:
/opt/mingw32/include/gig.h:672:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Resource::pInfo;
             ^
/opt/mingw32/include/gig.h:673:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Resource::pDLSID;
             ^
/opt/mingw32/include/gig.h:675:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Instrument::IsDrum;
             ^
/opt/mingw32/include/gig.h:676:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Instrument::MIDIBank;
             ^
/opt/mingw32/include/gig.h:677:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Instrument::MIDIBankCoarse;
             ^
/opt/mingw32/include/gig.h:678:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Instrument::MIDIBankFine;
             ^
/opt/mingw32/include/gig.h:679:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Instrument::MIDIProgram;
             ^
/opt/mingw32/include/gig.h:680:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Instrument::Regions;
             ^
/opt/mingw32/include/gig.h:691:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Resource::GetParent;
             ^
/opt/mingw32/include/gig.h:753:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Resource::pInfo;
             ^
/opt/mingw32/include/gig.h:754:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Resource::pDLSID;
             ^
/opt/mingw32/include/gig.h:756:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::File::pVersion;
             ^
/opt/mingw32/include/gig.h:757:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::File::Instruments;
             ^
/opt/mingw32/include/gig.h:760:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::Resource::GetParent;
             ^
/opt/mingw32/include/gig.h:762:13: error: access declarations are deprecated in favour of using-declarations; suggestion: add the 'using' keyword [-Werror=deprecated]
             DLS::File::Save;
             ^
cc1plus: all warnings being treated as errors
plugins/GigPlayer/CMakeFiles/gigplayer.dir/build.make:77: recipe for target 'plugins/GigPlayer/CMakeFiles/gigplayer.dir/GigPlayer.obj' failed
make[2]: *** [plugins/GigPlayer/CMakeFiles/gigplayer.dir/GigPlayer.obj] Error 1
CMakeFiles/Makefile2:7539: recipe for target 'plugins/GigPlayer/CMakeFiles/gigplayer.dir/all' failed
make[1]: *** [plugins/GigPlayer/CMakeFiles/gigplayer.dir/all] Error 2
Makefile:133: recipe for target 'all' failed
make: *** [all] Error 2

I'll probably make an issue later, gonna compile without gig for now.

tresf · 2015-01-10T14:38:06Z

Sounds good. May be a GCC version-specific issue.

DanWin · 2015-01-10T17:10:20Z

@Umcaruje GigPlayer wasn't able to build for you, because no one had enabled the windows builds yet. I made a pull request that should fix your issues #1591 But as travis uses ubuntu presice and not trusty, the package is missing in the ppa as it failed to build for precise. If you want to, you can apply my changes by hand and enable building, as long you use the trusty ppa.

Umcaruje · 2015-01-10T18:23:33Z

Ok so here are some builds :
win64: https://drive.google.com/file/d/0B49dcRGtm8vJUzBSRzYza2REUjA/view?usp=sharing

win32: https://drive.google.com/file/d/0B49dcRGtm8vJMllKeGhFSUpyYjA/view?usp=sharing

They do not include Gig player.

P.S. @DanWin thanks for the solution!

Sti2nd · 2015-01-10T19:01:59Z

Information: I will not download Kontakt for this, someone with Kontakt can test it out please, @Radiarc (don't remember his github name)

tresf · 2015-01-10T20:14:54Z

Information: I will not download Kontakt for this

Really? Don't they have a demo? We don't have many Windows testers, so to flat out state you won't test something without reason is a bit alarming.

Sti2nd · 2015-01-10T23:30:04Z

It is huge, at least the last time I downloaded it, and then I never used it... So if no one else really have Kontakt installed I guess I can do it as a backup plan

tresf · 2015-01-11T03:48:19Z

If we have to pull teeth for help, forget it. I'll do the testing. This VST is important to our users and that should carry some weight, regardless of the 20 minute burden this may have to download install and verify.

Sti2nd · 2015-01-20T17:08:45Z

I asked a guy on facebook which had the error to install the LMMS builds by Uros, it couldn't start for him.

https://www.facebook.com/makefreemusic/posts/853110868078438

Unrelated: I thought I posted a comment yesterday about this... now it is gone, and this have happened before.

DeRobyJ · 2015-01-22T21:09:42Z

Problem existing on LMMS 1.1, win8 64bit. (an Italian user asked me for it)
I can't test it right now, I don't have the minimum requirements >->

curlymorphic · 2015-02-21T11:14:21Z

Unrelated: I thought I posted a comment yesterday about this... now it is gone, and this have happened before.

I have had that a few times now, still not sure if its user error.

curlymorphic · 2015-02-21T11:29:59Z

using https://drive.google.com/file/d/0B49dcRGtm8vJMllKeGhFSUpyYjA/view?usp=sharing I could not get any vst instruments or effects to load

Umcaruje · 2015-02-21T11:32:59Z

using https://drive.google.com/file/d/0B49dcRGtm8vJMllKeGhFSUpyYjA/view?usp=sharing I could not get any vst instruments or effects to load

Probably because I used the new packages in the Ming-w ppa :/

curlymorphic · 2015-02-21T11:35:31Z

@Umcaruje thanks. At least i know i can move on, and come back to this later.

tresf · 2015-03-08T17:49:27Z

Most likely duplicate of #607 and #1008. Closing, marking as such. Please reopen if you believe this was closed in error, or if you are able to reproduce with the latest 1.1.3 build from our [https://lmms.io/download](downloads page).

Partago · 2015-07-13T13:48:08Z

I am able to reproduce this error in 1.1.3, latest version (as of 13 juli 2015). When I have a fresh project, in which I add the Kontakt 5 Player vst (64 bit), the vst loads fine and within one second. When I open up an existing project which contains the Kontakt 5 Player, it loads the project fine, loads the vst, and after the vst is fully loaded and the GUI is visible, LMMS hangs and gets unresponsive.

So, the vst loading doesn't fail for me, it's the event afterwards. It seems to be stuck in some sort of loop, or LMMS doesn't get the message that the vst is done loading and keeps waiting for it.

No matter how long I keep LMMS running, there is no processor activity and the counter remains on 88% (where it started loading the vst).

And this happens ALWAYS, I have had no event in which the project loaded fully. My system is Windows 8.1.

Xenofection · 2016-03-13T05:32:42Z

I've downloaded Kontact 5 after a friend recommended it, but didn't bother messing around with it until tonight. Spent a couple hours messing around with it in a project before switching to an old project to check something. When I switched back to my new project, LMMS kept crashing. Since I normally don't have this problem, I googled to see if there is an issue with LMMS and Kontact. Lo and behold, I find this thread. I am a Windows 10 user with LMMS 1.1.3 and I can confirm the issue. I am saddened to see that there hasn't been any movement on fixing this bug since Partago confirmed the issue in Windows. Hopefully my posting something will reinvigorate a fresh look into the issue.

JohnLopez38 · 2016-03-30T17:40:06Z

Hello , here I have the same problem and this for several years. I wish that this bug is studying me because it becomes so unbearable that I 'm about to change and take sequencer FL STUDIO

Problem , I am very attached to LMMS . It accompanied me since childhood .

I am running Windows 10, same problem W7 - W8- W8.1 -W10

KONTAKT launch at the start of a project , but he did not launch my extension and freezes.

I hope I have not made too many errors in writing because I 'm French .

Sincerely, Jonathan

tresf · 2016-03-30T19:33:50Z

I 'm about to change and take sequencer FL STUDIO

We lack the experienced developers needed to fix this. If this plugin is a show stopper, switch to a sequencer that can support it. 👍

If you want to stick with LMMS, help find eager developers. 👍

Glandulf · 2016-04-01T20:11:15Z

I've got the same problem, running LMMS 1.1.3, Windows 7, 32bits. Everything's fine until I wanna open a project which contains Kontakt 5, LMMS starts charging, then crashes.

basistime · 2016-09-17T22:05:25Z

Hello,

I ran into this bug myself, (1.1.3 and 1.1.90, Win 7, 64 bit) and came across this thread. I've decided to give fixing it a shot. I've managed to compile and run in MinGW-w64, and I've been digging in the code off and on for a while now.

Since the bug only appears when loading an existing project, I tried to fiddle with the save files themselves. It seems like the only substantial differences between a project that couldn't be loaded (containing Vestige with Kontakt 5) and one that could (containing Vestige with TyrellN6) were in the library path and "chunk". I've managed to rule out the chunk and confirm that which library is used is the only thing in the save file related to the hang. Of course, I could be severely misunderstanding them, but I don't think so.

As for the code itself, I managed to track the hang down to a call to the plugin's dispatcher on line 278 of RemoteVstPlugin.cpp. The call comes from line 679 of RemoteVstPlugin.cpp, which issues the effEditOpen command. Notably, that dispatcher call only hangs when loading an existing LMMS project, not when creating a new Vestige track and loading Kontakt 5 into it. Unfortunately, I've had trouble getting down there with gdb, which is why I haven't gotten further down yet, and why I didn't give you a real backtrace. Sorry about that.

Right now, I'm exploring the dispatcher and how that gets defined. If anyone is open to being available for a dumb question about the architecture once in a while or if you'd rather I back away slowly and let the professionals handle this, feel free to let me know!

tresf · 2016-09-17T22:42:50Z

I've had trouble getting down there with gdb

I wasn't able to build with debug symbols either. If you figure this out, please update our wiki to reflect the steps it took.

I've managed to compile and run in MinGW-w64

👍

If anyone is open to being available for a dumb question about the architecture once in a while or if you'd rather I back away slowly and let the professionals handle this, feel free to let me know!

@jasp00 is the most qualified to answer the VST bridge related questions.

jasp00 · 2016-09-18T01:04:53Z

If anyone is open to being available for a dumb question about the architecture once in a while

I am not very available, but feel free to ask. I will answer if possible.

or if you'd rather I back away slowly and let the professionals handle this

Please do step forward, people that want to help are welcome.

basistime · 2016-10-09T20:11:02Z

Apologies for the slow progress. I got involved in a few other things around town and I'm just getting back into this. @jasp00, what would the best resources for learning about the VST bridge be for someone generally unfamiliar with the subject? I've found some on the internet, but if you have a recommendation, I'd value that over the random things I've stumbled across. There are also a number of online tutorials for that SDK, but I'd rather stick with information about the free version if there are major differences.

Thank you for your time.

jasp00 · 2016-10-10T01:20:32Z

The best resource about VST in LMMS is the source code for RemoteVstPlugin. processMessage() handles host to plug-in messages; hostCallback(), plug-in to host ones. You may add fprintf(stderr, lines to understand the communication.

basistime · 2016-10-27T01:50:25Z

I'm always hoping to have better news to post, but that doesn't seem to be working out so far. While I was digging into what exactly might be hanging, I found something strange.

Essentially, part of the plugin can be loaded from the previously saved file if there is a long enough sleep at the end of RemoteVstPlugin::load, but this appears to be affected by precise code placement and a bit of luck.

To replicate this behavior in the most light-weight manner I've found (Line numbers are after previous steps):
0. Clone LMMS and build on MinGW (May not be MinGW-only, discussed below).

Include <chrono> and <thread> on lines 81 and 82, respectively, then add a blank line on line 83.
Add an extra blank line on line 671.
Comment out lines 682, 693, 695, and 696
Remake and run LMMS.
Load a file that contains a Vestige track with Kontakt 5 Player. The program should hang.
Abort LMMS and kill RemoteVstPlugin.exe
Insert std::this_thread::sleep_for( std::chrono::seconds( N ) ); on line 765, where N may vary based on your machine. 10 seconds worked for me. Most of the time.
Repeat steps 4 and 5.
After the wait, control will return to the user. A child window will load, but there won't be anything in it.

This did work, until about the 15th time I tried to confirm the lightest way to do this. Then even this stopped working regularly. I could try to get it working regularly again and then put a branch in my fork if anyone's interested. Otherwise, I'm not sure where to go from here. It seems like a thread race, but I'll have to dig into how the threading works more to be sure.

As an aside, I'm also interested in whether this issue shows up for anyone using the OSX version of Kontakt 5 Player. I didn't see anyone confirm either way in this thread. It's free (as in beer, with an email signup), so if someone was willing to try it out that could provide useful information.

Thanks for reading this whole thing!

tresf · 2016-10-27T02:02:57Z

I'm also interested in whether this issue shows up for anyone using the OSX version of Kontakt 5 Player.

FYI, Mac VSTs aren't supported yet (not native nor wine).

basistime · 2016-10-27T02:04:14Z

Oh, whoops, I'd read that somewhere and totally forgot. Thanks!

WrillicR · 2017-01-19T21:32:08Z

Has this been fixed yet?

tresf · 2017-01-19T21:54:36Z

Has this been fixed yet?

No. Some good feedback is available in this thread such as #1008 (comment) however nothing has been done to the codebase to patch this specific issue. We can track this in #3274.

tresf added the bug label Nov 3, 2014

tresf added this to the 1.2.0 milestone Nov 3, 2014

tresf mentioned this issue Nov 3, 2014

LMMS wont load Kontakt player gui #109

Closed

badosu mentioned this issue Jan 28, 2015

Failure to open a VST along with a project causes freezing/hanging. #1706

Closed

tresf closed this as completed Mar 8, 2015

tresf added the duplicate label Mar 8, 2015

tresf mentioned this issue Jan 19, 2017

Kontakt VST (among others) crashes after reloading the project #3274

Closed

DomClark mentioned this issue Aug 24, 2017

Fix some VST deadlocks/hangs #3776

Merged

tresf mentioned this issue Sep 22, 2017

some vsts do not open after saving them #3819

Closed

Freeze on loading project with Kontakt VST plugin #1008

Freeze on loading project with Kontakt VST plugin #1008

Comments

abduelhamit commented Jul 18, 2014

vultraz168 commented Nov 2, 2014

tresf commented Nov 3, 2014

tresf commented Jan 10, 2015

Umcaruje commented Jan 10, 2015

tresf commented Jan 10, 2015

Umcaruje commented Jan 10, 2015

tresf commented Jan 10, 2015

DanWin commented Jan 10, 2015

Umcaruje commented Jan 10, 2015

Sti2nd commented Jan 10, 2015

tresf commented Jan 10, 2015

Sti2nd commented Jan 10, 2015

tresf commented Jan 11, 2015

Sti2nd commented Jan 20, 2015

DeRobyJ commented Jan 22, 2015

curlymorphic commented Feb 21, 2015

curlymorphic commented Feb 21, 2015

Umcaruje commented Feb 21, 2015

curlymorphic commented Feb 21, 2015

tresf commented Mar 8, 2015

Partago commented Jul 13, 2015

Xenofection commented Mar 13, 2016

JohnLopez38 commented Mar 30, 2016

tresf commented Mar 30, 2016

Glandulf commented Apr 1, 2016

basistime commented Sep 17, 2016

tresf commented Sep 17, 2016 • edited Loading

jasp00 commented Sep 18, 2016

basistime commented Oct 9, 2016

jasp00 commented Oct 10, 2016

basistime commented Oct 27, 2016

tresf commented Oct 27, 2016

basistime commented Oct 27, 2016

WrillicR commented Jan 19, 2017

tresf commented Jan 19, 2017

tresf commented Sep 17, 2016 •

edited

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