[Dovecot] Re: time out error and email with attachments

[Mark Plaksin]

Mark Plaksin <happy at usg.edu> writes:

> I just got a different hang while downloading a large attachment:
>
> #0  0xff11dbb4 in _poll () from /usr/lib/libc.so.1
> #1  0x0006c784 in io_loop_handler_run (ioloop=0x9f330) at ioloop-poll.c:142
> #2  0x0006c164 in io_loop_run (ioloop=0x9f330) at ioloop.c:230
> #3  0x00028660 in main (argc=652080, argv=0x962c8, envp=0x0) at main.c:229
>
> Again, I'm not skillful enough with gdb to tell whether this is poll()
> hanging or whether Dovecot is looping and calling poll multiple times.
> Next time I'll run truss before gdb!

It's looping and calling poll over and over.  This hang is relatively easy
to reproduce.  If I leave Dovecot idle a while (hours) and then start using
it again it (almost?) always gets into this loop when the first UID STORE
happens.