Problem with IMAP Server and Header Cache

[Kevin J. McCarthy]

On Thu, Jan 26, 2023 at 05:07:50PM +0100, Christian Brabandt wrote:
>I tried building building latest master with --with-kyotocabinet

Thank you for rebuilding and testing.  Since the problem isn't with the 
header cache backend, this smells like a Mutt bug.

Would you mind opening a ticket so we can debug it without causing too 
much traffic on mutt-users?

>It took me a bit until I found `./prepare` but then I could run 
>configure (and for some reason, it didn't like my installed 
>`libidn2-dev` library, so I build without `--with-idn`, but I suppose 
>for the test it doesn't really matter.)

There is a --with-idn2 configure flag you can use instead.  The packaged
mutt used libidn, so I assumed build-dep would install that library.

>But I am afraid, I am seeing the same problem (I haven't waited yet 3 
>hours until mutt gets disconnected from the IMAP server, but the 
>symptoms look exactly the same.

I'll need some more debug information to try and figure out what's going 
on.  I'm attaching a patch.  If you would apply, re-compile and run with 
debug mode (-d 2), it should hopefully give some useful info about 
what's happening at the hang point.

You only need to let mutt run for a minute and then kill it.  Otherwise 
the debug file will get really really big.  If you would post that to 
the ticket (taking care to remove the authentication parts), I would 
appreciate it.

Thank you!

-- 
Kevin J. McCarthy
GPG Fingerprint: 8975 A9B3 3AA3 7910 385C  5308 ADEF 7684 8031 6BDA
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