[Bug 253105] New: KMail freezes deleting large number of messages

[Andrey Borzenkov]

https://bugs.kde.org/show_bug.cgi?id=253105

           Summary: KMail freezes deleting large number of messages
           Product: kmail2
           Version: 2.0.89
          Platform: Mandriva RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: arvidjaar at mail.ru


Version:           2.0.89 (using Devel) 
OS:                Linux

KDE 4.5.68/Qt 4.7.0/Akonadi 1.4.52 in Mandriva cooker.

I had trash with 7829 message in it as local folders in maildir format. It was
the only resource configured in KMail. I selected "Empty trash" after which
KMail froze consuming 100% of one full core of two. After about half an hour on
status bar of KMail (lower window border) appeared "Processed 30 Messages of
7829). At this point trash folder was empty and checking with akonadiconsole
confirmed that Trash was purged. The deletion it self took very small amount of
time (there was short burst of CPU/disk activity).

While I write this status changed to "Processed 40 Messages of 7829". I wonder
how long will it take it to finish ...

This is the second time I try to empty trash, the first one ended with
completely broken sync between mixedmaildir and akonadi database.

Reproducible: Always

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