Rescan Library freezes Mixxx 2.2.0

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Rescan Library freezes Mixxx 2.2.0

Postby mbrouillet » Wed Jun 12, 2019 3:15 pm

Hello,
When I run « Rescan library » from the menu, it freezes mixxx. I left it like this all night and in the morning it was still frozen.
Any suggestion ?
Thank you,
Marcel.

Ubuntu 18.04 / Linux marcel-HP-ENVY 4.15.0-48-generic #51-Ubuntu SMP Wed Apr 3 08:28:49 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Mixxx 2.2.0
Attachments are the .mixxx/mixxx.log file and the STDOUT of the following command : "mixxx --logLevel trace --logFlushLevel trace "
Attachments are also available here : https://wetransfer.com/downloads/bf61198955bd234d48069d3dfb13a4f920190612150622/3421594abf726954af12bac223188bb420190612150622/909d5d?utm_campaign=WT_email_tracking&utm_content=general&utm_medium=download_button&utm_source=notify_recipient_email
Attachments
mixxx.stdout.txt
STDOUT of "mixxx --logLevel trace --logFlushLevel trace" until I got an alertbox of Gnome asking me if I wanted to wait or force kill.
Also output of uname -a and mixxx -h for version info.
(244.63 KiB) Downloaded 3 times
mixxx.log
Logs of "mixxx --logLevel trace --logFlushLevel trace " found in the .mixxx directory
(241.35 KiB) Downloaded 4 times
mbrouillet
 
Posts: 12
Joined: Sun Jun 09, 2019 10:32 am

Re: Rescan Library freezes Mixxx 2.2.0

Postby tapir » Wed Jun 12, 2019 4:06 pm

If Mixxx is running at 100% CPU while stalled you might be affected by this bug:

https://bugs.launchpad.net/mixxx/+bug/1832325

Is the UI responsive? I suppose not because the main thread seems to be blocked when trying to access the track cache. The track cache is still locked by the library scanner which doesn't seem to be able to continue for unknown reasons.
tapir
Mixxx Developer
 
Posts: 308
Joined: Sat Aug 04, 2012 12:03 pm
Location: Stuttgart

Re: Rescan Library freezes Mixxx 2.2.0

Postby mbrouillet » Sun Jun 16, 2019 5:13 pm

tapir wrote:If Mixxx is running at 100% CPU while stalled you might be affected by this bug


Yes, htop shows mixxx running at 100% of CPU even after 15 minutes. Load is high but reasonable (it seems limited to two threads/PIDs). In the meantime, the OS shows a popup "Mixxx is not responding - you may choose to wait for a short while for it to continue or force the application to quit entirely".

Is the UI responsive? I suppose not


Indeed, the UI is locked. I tried to remove the .mixxx directory. It is now worse as I can't get mixxx to start.

Please tell me how I can help resolve the problem. I have reasonable linux knowledge. Note : I'm now on Mixxx v2.2.1. I see that the bug you point me to has a patch. Do I get this patch if I run "git clone -b 2.2 https://github.com/mixxxdj/mixxx.git" as suggested in the https://mixxx.org/download/ page or do I need to wait until it gets merged ? Thank you.
mbrouillet
 
Posts: 12
Joined: Sun Jun 09, 2019 10:32 am

Re: Rescan Library freezes Mixxx 2.2.0

Postby tapir » Sun Jun 16, 2019 7:15 pm

The fix has already been merged into both the 2.2 and master branch.
tapir
Mixxx Developer
 
Posts: 308
Joined: Sat Aug 04, 2012 12:03 pm
Location: Stuttgart

Re: Rescan Library freezes Mixxx 2.2.0

Postby mbrouillet » Mon Jun 17, 2019 10:54 pm

I did compile from source (maybe didn't need this) and I do confirm the bug is solved. Thank you !
mbrouillet
 
Posts: 12
Joined: Sun Jun 09, 2019 10:32 am


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