0006754: Creating a track with tape mode causes a spike in memory usage

ID	Project	Category	View Status	Date Submitted	Last Update

0006754	ardour	bugs	public	2016-01-29 00:19	2016-02-01 12:19

Reporter	mosteo	Assigned To
Priority	normal	Severity	crash	Reproducibility	always
Status	confirmed	Resolution	open
Platform	PC	OS	Ubuntu	OS Version	15.10

Summary	0006754: Creating a track with tape mode causes a spike in memory usage
Description	Creating a track with tape mode causes a spike in memory usage that blocks the GUI until the process is killed by out-of-memory or other means.
Steps To Reproduce	Create new session. Right click in the left-bus area to open the New track pop-up. In the dialog, select tape recording mode. Once you hit +Add, everything will freeze. If you have some memory monitor in the status bar you can see the runaway memory allocation.
Additional Information	I cannot reproduce this effect if I create a track in normal mode and the switch it to tape mode. $ uname -a Linux isila 4.2.0-25-lowlatency 0000030-Ubuntu SMP PREEMPT Mon Jan 18 13:13:07 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.10 Release: 15.10 Codename: wily $ wajig policy ardour4 ardour4: Installed: 1:4.6.22-1kxstudio1v5 Candidate: 1:4.6.22-1kxstudio1v5 Version table: *** 1:4.6.22-1kxstudio1v5 0 500 http://kxstudio.linuxaudio.org/repo/ gcc5/free amd64 Packages
Tags	No tags attached.

Date Modified	Username	Field	Change
2016-01-29 00:19	mosteo	New Issue
2016-02-01 12:18	timbyr	Note Added: 0017860
2016-02-01 12:18	timbyr	Status	new => confirmed
2016-02-01 12:19	timbyr	Relationship added	related to 0006283

timbyr 2016-02-01 12:18 developer ~0017860	Thanks for the report. I can confirm this issue on linux with nightly build 4.6.201 I'm not sure If tape tracks are still "supported" and perhaps they should be hidden in the GUI. You will have to wait for someone who knows a bit more about them to comment.