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List:       kde-bugs-dist
Subject:    [kmail2] [Bug 320554] New: kmail hangs when opening (or replying to) large email
From:       Roman K. <roman.karlstetter () googlemail ! com>
Date:       2013-05-31 21:52:28
Message-ID: bug-320554-17878 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=320554

            Bug ID: 320554
           Summary: kmail hangs when opening (or replying to) large email
    Classification: Unclassified
           Product: kmail2
           Version: 4.10.3
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: composer
          Assignee: kdepim-bugs@kde.org
          Reporter: roman.karlstetter@googlemail.com

When opening a large email (8800 lines), the complete UI freezes and one of my
CPU cores is at 100%. After that, everything works fine again. 

This happens for example when replying  to a long email thread where there are
a lot of replies already. This happens for the same mail when I save it as a
draft and reopen it.

One other thing, I use automatic line breaks, so I have a lot of lines like the
following:
> > > > > > > > > >> > > > > > > > > > > > > > > > > >> >> > > > > > > > > > R
> > > > > > > > > >> > > > > > > > > > > > > > > > > >> >> > > > > > > > > > o


Reproducible: Always

Steps to Reproduce:
1. Reply to a large email
2. Wait and observe CPU-consumption
3. 
Actual Results:  
UI freezes, high CPU-consumption

Expected Results:  
Not freeze UI, but just make allow editing the mail immediately.

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