[Akonadi] [Bug 313399] New: IMAP source hangs when server has IPv6 address but connection fails

Erwin Van de Velde erwin.vandevelde at gmail.com
Thu Jan 17 10:07:33 GMT 2013


https://bugs.kde.org/show_bug.cgi?id=313399

            Bug ID: 313399
           Summary: IMAP source hangs when server has IPv6 address but
                    connection fails
    Classification: Unclassified
           Product: Akonadi
           Version: 4.9
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: IMAP resource
          Assignee: ervin at kde.org
          Reporter: erwin.vandevelde at gmail.com
                CC: kdepim-bugs at kde.org, vkrause at kde.org

I have an IPv6 connection through a tunnel and since my mail server supports
IPv6, normally all IMAP traffic is sent over IPv6. However, when the IPv6
connection fails (e.g. route failure somewhere along the route), the IMAP
resource hangs indefinitely, unable to abort or whatsoever. Other applications
like e.g. firefox gracefully fall back to IPv4 connectivity (which was still
working) and in my opinion the IMAP resource should do the same.


Reproducible: Always

Steps to Reproduce:
1. Use IMAP resource with a server with both an IPv4 and IPv6 address
2. Make sure your host has IPv4 and IPv6 configured
3. Simulate route failure along the route (e.g. drop IPv6 traffic on the
firewall)
Actual Results:  
IMAP resource hangs completely

Expected Results:  
The IMAP resource should fall back on IPv4 connectivity.

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