Bug 60014 - Hang / extreme slowdown when printing long lines to the application output
Summary: Hang / extreme slowdown when printing long lines to the application output
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Shell (show other bugs)
Version: 7.3 (d15-5)
Hardware: PC Mac OS
: Low normal
Target Milestone: master
Assignee: Marius Ungureanu
Depends on:
Reported: 2017-10-06 11:37 UTC by Rolf Bjarne Kvinge [MSFT]
Modified: 2017-10-10 06:20 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

Test project (1.94 KB, application/gzip)
2017-10-10 06:19 UTC, Mike Krüger

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report for Bug 60014 on Developer Community or GitHub if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: Developer Community HTML or GitHub Markdown
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:

Description Rolf Bjarne Kvinge [MSFT] 2017-10-06 11:37:48 UTC

* Create a new command-line project.
* Change the project settings to not use an external terminal (in Run/Configurations/Default uncheck "Run on external console")
* Add to Main:

    Console.WriteLine (new string ('x', 50_000_000));

* Put a breakpoint on the line after the Console.WriteLine (end of the Main method)
* Run.

The problem is obvious here, but not necessarily if you print something that suddenly ends up an enormous line (because VSfM will hang and you have no way of diagnosing why).
Comment 1 Mike Krüger 2017-10-10 06:19:34 UTC
Created attachment 25235 [details]
Test project

Project that shows the bug.