Bug#671690: libgamin0 breaks courier-imap/courier-imap-ssl (Sudden termination of connection)
BenBE at geshi.org
Sat May 5 23:01:03 UTC 2012
Justification: breaks unrelated software
* What led up to the situation?
I've been running a Courier IMAP and POP3 server on my system for quite some time which worked
just fine except for some mail clients reporting "filesystem errors" when it was still running
with some (older) libfam0 version. Replacing that libfam0 version by libgamin0 (which claims
compatibility) worked fine and fixed the aforementioned problem at that time.
* What exactly did you do (or not do) that was effective (or
I recently updated the Courier IMAP server from 4.8 to 4.10. After this logins to IMAP stopped
working. As I expected a problem with the most recent courier-imap(-ssl) update I tried a
downgrade to stable (4.8) which didn't have any effect regarding this problem: Clients still
could not login nor got an error message from the server.
Additionally I checked for a permission problem and thus tried to disable the addional sanity
checks Courier performs when reading the Maildir. This didn't change anything either.
To reproduce I tried to create an IMAP account afresh in my mail client with proper settings
for the login credentials but when trying to use IMAP it just hang a few seconds and then
suddently terminated without providing a login status message (e.g. OK or error message).
When switching IMAP for POP3 it just worked properly.
* What was the outcome of this action?
The outcome was that using the Courier IMAP server was impossible since although I could login
according to authdaemond clients kept on disconnecting.
After multiple hours of checking everything (including analyzing encrypted network traces, logfiles,
various configurations, the answer to life the universe and everything ...) I incidentially tried
to recompile Courier IMAP from source using
apt-src install courier-imap-ssl
which insisted on installing (the previously broken) libfam0 package(s). Interestingly NOW
libfam0 worked without File system errors reported by the client AND the login returned to a
* What outcome did you expect instead?
If libgamin0 claims to provide libfam0 it should behave like libfam0.
Oh and secondly I expected software to just work ;-)
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.0.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages libgamin0 depends on:
ii gamin 0.1.10-4
ii libc6 2.13-32
libgamin0 recommends no packages.
libgamin0 suggests no packages.
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