Bug 679490

Summary: [a11y] LibreOffice Writer hangs when switching view to "Web layout"
Product: [Fedora] Fedora Reporter: kentontofte
Component: libreofficeAssignee: David Tardon <dtardon>
Status: CLOSED WORKSFORME QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: rawhideCC: caolanm, dtardon, ltinkl
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-10-27 09:59:22 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
hacky demo none

Description kentontofte 2011-02-22 17:51:55 UTC 
Description of problem:
LibreOffice Writer has trouble switching to the "Web layout" view when a document is open. The CPU spikes, and the program freezes temporarily. It becomes nearly unusable with large documents.


Version-Release number of selected component (if applicable): LibreOffice 3.3.0.4-1.fc15


How reproducible:
Easily reproducible with different documents. Most noticeable with large ones (50+ pages).

Steps to Reproduce:
1. Open .odt document from Nautilus.
2. In LibreOffice Writer, go to "View" and click "Web layout".
  
Actual results:
Program freezes for different lengths of time (15 seconds to several minutes), depending on the size of the document. Sometimes (but rarely) affects entire desktop.

Expected results:
Fairly quick change from print to web layout.

Additional info:
Happens while running latest Rawhide (as of 22 Feb 2011) on a Lenovo Thinkpad R61 with 2 GHz Intel Core 2 Duo CPU and 2 GB RAM.
Comment 1 Caolan McNamara 2011-02-22 20:35:59 UTC 
Attach a specific example
Comment 2 David Tardon 2011-03-16 12:13:57 UTC 
Caused by a11y. If you turn it off, i.e., run

gconftool-2 -s /desktop/gnome/interface/accessibility -t boolean false

, the change will be fairly quick.
Comment 3 Caolan McNamara 2011-03-30 19:29:09 UTC 
Indeed http://www.oasis-open.org/committees/download.php/12573/OpenDocument-v1.0-os.sxw hangs on switch
Comment 4 Caolan McNamara 2011-03-30 20:25:30 UTC 
looks like its insanely slow and busy rather than in a simple hang
Comment 5 David Tardon 2011-03-31 04:34:44 UTC 
Yes, exactly. I was going to mention this, but I see I haven't...
Comment 6 Caolan McNamara 2011-04-07 16:07:03 UTC 
Created attachment 490585 [details]
hacky demo

Well, hacking this makes it from never ends, to just completely unacceptably slow and leaving unsafe SwAccessibleEvent_Impl dangling pointing to deleted objects.
Comment 7 David Tardon 2011-10-27 09:59:22 UTC 
I have not been able to reproduce the slowdown ever since, so I am going to blame it on at-spi2 or something related.