Hello List!

I've encountered an error after upgrading my system and dovecot. I guess it's probably a result of a configuration problem, however after quite some tinkering with configuration I am still missing the source of the problem.

Sep 28 16:57:21 shwurzbung dovecot: imap(wizz): Panic: file mail-storage.c: line 834 (mailbox_verify_name): assertion failed: (strncmp(vname, ns->prefix, ns->prefix_len-1) == 0) Sep 28 16:57:21 shwurzbung dovecot: imap(wizz): Fatal: master: service(imap): child 23203 killed with signal 6 (core not dumped - set service imap { drop_priv_before_exec=yes })

The problem above appears with both dovecot 2.2.5 and 2.2.6. It did not happen while using dovecot 2.1.12. Operating system is OpenBSD 5.4-current and AMD64. FS type is FFS (default for OpenBSD).

Output of dovecot -n:

# 2.2.6: /etc/dovecot/dovecot.conf # OS: OpenBSD 5.4 amd64
auth_mechanisms = plain login default_process_limit = 200 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave mbox_write_locks = fcntl mmap_disable = yes namespace { hidden = yes inbox = yes list = no location = mbox:~/mail:INBOX=/var/mail/%u prefix = inbox/ type = private } namespace inbox { location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = bsdauth } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh protocols = imap pop3 lmtp sieve service auth { unix_listener /var/run/dovecot/auth-master { group = virtuals mode = 0600 user = virtuals } unix_listener /var/spool/postfix/private/auth { mode = 0660 user = _postfix } user = root } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } ssl_cert =

Thanks in advance for any pointers to a resolution.

Best regards, Kamil Andrusz

-- It's just a matter of opinion.