[Dovecot] Panic in index-sync.c: line 25 on dovecot-1.2.17

[Timo Sirainen]

On 7.5.2012, at 23.40, Leon Meßner wrote:

> with dovecot-1.2.17 (yes i know it's old) i'm getting the folowing error
> after doing a system upgrade.
> 
> May  7 22:04:26 mail dovecot: deliver(elon): Panic: file index-sync.c: line 25 (index_mailbox_set_recent_uid): 
> 		assertion failed: (seq_range_exists(&ibox->recent_flags, uid))

This is a bug, and in v2.x the assert has been replaced with a non-fatal error message. Although I haven't recently heard of people reporting this error, so perhaps it has been fully fixed already.

> After that a new mail does the same dance (perhaps until the next one to
> this ML arrives). The maildirs are on NFS and in this case only beeing
> used with my instance of mutt and two other postfix+dovecot servers
> which are quite idle. Whats the way to debug this ?

I don't know why it happens in v1.2 and I don't know if there's a way to fix it other than upgrading.