[Dovecot] 1.2.9 imap crash with backtrace

[mailing at securitylabs.it]

On 21/01/2010 17:53, David Halik wrote:
>
> Good news and bad news.
>
> The good news is that I've been core dump free for about 24 hours. The 
> duplicate message issue is still there, so if you wanted that fix then 
> I guess the patch is not complete yet, otherwise it looks good.
>
> The bad news is that I'm now convinced that another problem I've been 
> experiencing is real and not related to any of this since it's still 
> persists.
>
> Randomly for a few releases now myself and my coworkers have been 
> seeing a weird bug where old mail marked as "read" suddenly becomes 
> marked as "new" again when going into a folder. Sometimes it's as bad 
> as the entire folder deciding it is all unread when in fact is was all 
> read, other times it's randomly a few pieces of mail that constantly 
> revert to unread status. I've watched this on my personal server as 
> well as heard complaints from our user population.
>
> I don't believe this is an NFS issue because my personal account is a 
> standalone server with both a local index and maildir running 1.2.9. 
> Also, I'm only ever connected from one place at a time. Just this 
> morning when I got to work I logged in with Thunderbird and my 
> "dovecot" mailing list folder suddenly had 3,000 new messages in it, 
> all of which had been previous read. I marked the folder as read, then 
> a little while later I went into the older and they all reverted to 
> new again. I've also seen it where if I try deleting one of these 
> messages marked as new, it disappears for a second, then magically 
> reappears in my folder as new.
>
> Unfortunately, I'm not seeing a single log message related to this. As 
> you can tell, I watch the logs like a hawk, yet nothing ever appears 
> to throw an error or any message whatsoever. All my test cases have 
> been with Thunderbird 3.0, I'm not sure if other clients a
> re seeing this.

Hello, same problem here. I use Thunderbird 3.0.1. The strange thing is 
that with the same version of TB on my PC at home I don't have this 
issue. The same TB on my work PC has this issue and only on one account 
(that has Dovecot as imap server) but I have other account (some with 
dovecot, other with courier-imap) where this does not happen, so I think 
is TB related.

Also here no NFS, ext3.