[Akonadi] [Bug 319445] New: akonadi-imap-resource stays at CPU 100% and does nothing - KDE 4.10.3 ONLY.

[Alejandro Nova]

https://bugs.kde.org/show_bug.cgi?id=319445

            Bug ID: 319445
           Summary: akonadi-imap-resource stays at CPU 100% and does
                    nothing - KDE 4.10.3 ONLY.
    Classification: Unclassified
           Product: Akonadi
           Version: 4.10
          Platform: Chakra
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: IMAP resource
          Assignee: ervin at kde.org
          Reporter: alejandronova at gmail.com
                CC: kdepim-bugs at kde.org, vkrause at kde.org

When I'm trying to download mail, the normal behaviour in KDE 4.10.x was: the
IMAP resource downloads as fast as it can. However, in KDE 4.10.3 a nasty bug
was introduced, so the IMAP resource doesn't download, but instead polls
constantly the Akonadi status, doing nothing and making my CPU explode. This is
what I'm getting through strace:

poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN},
{fd=6, events=POLLIN}, {fd=9, events=POLLIN}], 5, 51) = 1 ([{fd=3,
revents=POLLIN}])
read(3, "\1\0\0\0\0\0\0\0", 16)         = 8
recvfrom(6, 0x73f784, 4096, 0, 0, 0)    = -1 EAGAIN (Resource temporarily
unavailable)
recvfrom(6, 0x73f784, 4096, 0, 0, 0)    = -1 EAGAIN (Resource temporarily
unavailable)

Also, there are messages like these in the console.

akonadi_imap_resource_1(28661)/kdepimlibs (kimap)
KIMAP::FetchJob::handleResponse: FETCH reply got truncated, skipping. 


Reproducible: Always

Steps to Reproduce:
1. Create an IMAP account with Google Mail.
2. Fetch mail.

Actual Results:  
Mail is fetched slowly, and the CPU is constantly at 100%, or even over 100% if
I navigate to another folder in KMail.

Expected Results:  
Mail is fetched fast, and the CPU is used accordingly.

This is unrelated to the new Akonadi Nepomuk Feeder, but the bug was introduced
with KDE 4.10.3

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