Yelp causes 100% CPU usage

[Bill Richman]

Steps to reproduce:
1. Open Gnome Terminal
2. Press F1 to open the Gnome Terminal Help
3. Search for something using the search bar
4. Click the link on the top to go back to GNOME Terminal Manual

Expected result:
Yelp goes back to the GNOME Terminal Manual main page
What happens:
Yelp goes back, but the CPU usage of the Yelp process increases to 100% and stays at 100% until it's closed or killed.

Reproduced with Yelp 3.0.0-0ubuntu2 and 3.2.0-0ubuntu1 on Ubuntu Natty and Ubuntu Oneiric

Ubuntu 11.04

Architecture: i386
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: yelp

[Robert Roth (evfool)]

The same thing happens on oneiric, using yelp 3.2.0-0ubuntu1.

[Robert Roth (evfool)]

Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at: https://bugzilla.gnome.org/show_bug.cgi?id=661509

[rpr nospam (rpr-nospam)]

I can reproduce this bug on Ubuntu 12.04 64-bit with yelp 3.4.1-0ubuntu1.The test machine has a quad-core 3.2 GHz AMD Phenom II and when the bug occurs one of the cores constantly runs at 100% until closing yelp (tested for 10+ minutes).

It seems that high CPU usage is triggered by using the search bar in yelp. If a search query produces no results, load is normal. But if a query produces some results, high CPU load occurs.

I'd say it this bug is quite similar to bug 268845 which was reported in 2008.

[Murali (memurali)]

I can confirm the yelp performance issue. The processor was on full blast - once yelp was terminated, the system is much quieter now. Thanks.

[Michi Henning (michihenning)]

Just saw this happen to me with xenial. 100% CPU consumption by yelp.

[Dave Korman (david-korman)]

Just happened to me on Xenial too.