Panic: file istream.c: line 167 with 2.2.13 + istream.c/.h from dovecot-2-2-dffc6dd2be0d

[Toni Mattila]

Hi,

On 6.7.2014 20:23, Timo Sirainen wrote:
>> Jul  6 08:11:52 dovecot: imap(user at domain.tld): Panic: file istream.c: line 167 (i_stream_read): assertion failed: (old_size <= _stream->pos - _stream->skip)
> This isn't intended, but I can't seem to be able to reproduce the crash. What's your doveconf -n output?

auth_mechanisms = plain apop
auth_verbose = yes
auth_verbose_passwords = plain:5
default_client_limit = 5000
default_process_limit = 1000
default_vsz_limit = 384 M
disable_plaintext_auth = no
first_valid_uid = 89
imap_idle_notify_interval = 6 mins
mail_location = maildir:~/Maildir
mail_plugins = " mail_log notify"
mailbox_list_index = yes
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 duplicate
mbox_write_locks = fcntl
namespace inbox {
   inbox = yes
   location =
   mailbox Drafts {
     auto = subscribe
     special_use = \Drafts
   }
   mailbox Junk {
     special_use = \Junk
   }
   mailbox Sent {
     auto = subscribe
     special_use = \Sent
   }
   mailbox "Sent Messages" {
     special_use = \Sent
   }
   mailbox Spam {
     auto = subscribe
     special_use = \Junk
   }
   mailbox Trash {
     auto = subscribe
     special_use = \Trash
   }
   prefix = INBOX.
   separator = .
}
passdb {
   driver = vpopmail
}
plugin {
   mail_log_events = mailbox_delete mailbox_rename
   sieve = ~/.dovecot.sieve
   sieve_dir = ~/sieve
   sieve_max_script_size = 5M
}
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
pop3_uidl_format = %f
protocols = imap pop3 lmtp sieve
service imap-login {
   inet_listener imap {
     address = 0.0.0.0
     port = 143
   }
   inet_listener imaps {
     address = 0.0.0.0
     port = 993
   }
}
service managesieve-login {
   inet_listener sieve {
     address = 0.0.0.0
     port = 4190
   }
   service_count = 1
}
service managesieve {
   process_limit = 1024
}
service pop3-login {
   inet_listener pop3 {
     address = 0.0.0.0
     port = 110
   }
   inet_listener pop3s {
     address = 0.0.0.0
     port = 995
   }
}
ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_cipher_list = RC4-SHA:AES256-SHA:AES128-SHA:DES-CBC3-SHA
ssl_key = </etc/pki/dovecot/private/dovecot.pem
ssl_prefer_server_ciphers = yes
userdb {
   args = quota_template=quota_rule=*:backend=%q
   driver = vpopmail
}
protocol lda {
   mail_plugins = " mail_log notify sieve"
}
protocol imap {
   mail_max_userip_connections = 50
}
protocol sieve {
   mail_max_userip_connections = 10
}

>> These can of course be fixed with maildir-size-fix.pl and deleting dovecot index files, but there are thousands like these. Dovecot 1.2 didn't have any issues with these old maildirs transfered over from courierimap.
> maildir_broken_filename_sizes=yes restores the old behavior.

Ok will try that too.

I have now enabled coredumps just to see if I can get more info. This 
32bit Centos 5.

Thanks,
Toni