Hello!

I use dovecot 2.1.12 locally on a 32bit Linux with an ext4 filesystem and after deleting a lot of emails from a mbox folder, I now get the following messages in the log:

dovecot: imap(amied): Panic: file mbox-sync.c: line 1351 (mbox_sync_handle_eof_updates): assertion failed: (offset == 0 || offset > 31) dovecot: imap(amied): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x4559a) [0x6f68959a] -> /usr/lib/dovecot/libdovecot.so.0(+0x45611) [0x6f689611] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x6f658fa0] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x2d707) [0x6f708707] -> /usr/lib/dovecot/libdovecot-storage.so.0(mbox_sync+0x53) [0x6f7091d3] -> /usr/lib/dovecot/libdovecot-storage.so.0(mbox_storage_sync_init+0x6d) [0x6f70936d] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x3b) [0x6f72333b] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x3f) [0x6f72347f] -> dovecot/imap(cmd_select_full+0x16b) [0x805529b] -> dovecot/imap(cmd_select+0x17) [0x8055c57] -> dovecot/imap(command_exec+0x32) [0x80596f2] -> dovecot/imap() [0x80586fd] -> dovecot/imap() [0x805880d] -> dovecot/imap(client_handle_input+0x125) [0x8058a05] -> dovecot/imap(client_input+0x60) [0x80592f0] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x44) [0x6f6981f4] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xce) [0x6f6991ce] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x6f697cd0] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x2e) [0x6f680dbe] -> dovecot/imap(main+0x279) [0x804fdd9] -> /lib/libc.so.6(__libc_start_main+0xf5) [0x6f49bad5] -> dovecot/imap() [0x804ff51]

The mbox file seems to be unchanged and a .lock file remains even after stopping dovecot. The folder is not accessible any more. A fix would be nice. :-)

dovecot config:

listen = 127.0.0.1 mail_fsync = never mail_location = maildir:/var/mails/%u 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 namespace { inbox = no location = mbox:/var/mails/mbox/%u prefix = mbox/ separator = / } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / } passdb { args = * driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap ssl_cert = </etc/ssl/dovecot/server.pem ssl_key = </etc/ssl/dovecot/server.key userdb { driver = passwd } protocol lda { mail_plugins = sieve }

Greetings Antje