[kmail2] [Bug 348783] New: kmail hanged in a busy loop

[Lastique]

https://bugs.kde.org/show_bug.cgi?id=348783

            Bug ID: 348783
           Summary: kmail hanged in a busy loop
           Product: kmail2
           Version: 4.14.7
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: andysem at mail.ru

I was typing a reply to an email, then I temporarily switched to another window
and when I switched back kmail was no longer responsive. The kmail process was
constantly consuming 100% of a CPU core and 2.7 GB of RAM - that is compared to
around 180 MB that it consumes right after start.

I have two IMAP email accounts attached, one of the akonadi_imap_resource
processes was consuming 1.7 GB of RAM during the incident, but was mostly idle
on CPU. The memory consumption did not go down after I restarted kmail.

I got a few stacktraces from the kmail process as it was hanging (attached).
I'm not sure what was the trigger for this behavior. This happened only once so
far.


Reproducible: Sometimes




Kubuntu 15.04, x86_64. KDE Frameworks and SC installed from Kubuntu backports.

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