[Dovecot] 1.1b1 initial pop3 login: assertion failed

[David Jonas]

Timo Sirainen wrote:
> On Fri, 2007-09-28 at 16:12 -0700, David Jonas wrote:
>> Sep 28 15:51:14 kelly-a dovecot: POP3(xxx at xxxxx.com)[8112]: Fixed index
>> file /home/vmail/x/xxxxx.com/xxx/Maildir/dovecot.index: first_recent_uid
>> 0 -> 1
> 
> Fixed now: http://hg.dovecot.org/dovecot/rev/392a49f0c69a
> 
>> Sep 28 15:51:14 kelly-a dovecot: POP3(xxx at xxxxx.com)[8112]: file
>> mail-index-view-sync.c: line 304 (mail_index_view_sync_begin): assertion
>> failed: (view->index->map->hdr.messages_count >= ctx->finish_min_msg_count)
> 
> I guess you don't have a core file from this crash? It probably had
> something to do with upgrading index files from v1.0, but it still
> shouldn't happen and I'd like to fix it.

I dug around the filesystem and didn't see a core file hanging around.
What do I need to do to get a core dump? I can set a script to login
into a bunch of accounts until it gets one that core dumps, if that'd be
helpful. I just need to know how to make it produce the core and where
the core might be written.