I'm not sure how useful this is with optimization turned back on, but here it is anyway. This was just a one off that happened last night:
Jan 27 20:49:05 gehenna17.rutgers.edu dovecot: IMAP(user): fscking index file /rci/nqu/rci/u2/user/dovecot/.INBOX/dovecot.index Jan 27 20:49:05 gehenna17.rutgers.edu dovecot: IMAP(user): Panic: file mail-transaction-log-view.c: line 108 (mail_transaction_log_view_set): assertion failed: (min_file_seq <= max_file_seq) Jan 27 20:49:05 gehenna17.rutgers.edu dovecot: IMAP(user): Raw backtrace: /usr/libexec/dovecot/imap [0x49ede0] -> /usr/libexec/dovecot/imap [0x49ee43] -> /usr/libexec/dovecot/imap [0x49e4a6] -> /usr/libexec/dovecot/imap(mail_transaction_log_view_set+0x4ac) [0x486e1c] -> /usr/libexec/dovecot/imap(mail_index_sync_have_any+0x8f) [0x47c2bf] -> /usr/libexec/dovecot/imap [0x43cb8a] -> /usr/libexec/dovecot/imap(maildir_storage_sync_init+0x14e) [0x43cf0e] -> /usr/libexec/dovecot/imap(imap_sync_init+0x67) [0x4283e7] -> /usr/libexec/dovecot/imap(cmd_sync_delayed+0x174) [0x428634] -> /usr/libexec/dovecot/imap(client_handle_input+0x19e) [0x420c5e] -> /usr/libexec/dovecot/imap(client_input+0x5f) [0x42164f] -> /usr/libexec/dovecot/imap(io_loop_handler_run+0xf8) [0x4a6c68] -> /usr/libexec/dovecot/imap(io_loop_run+0x1d) [0x4a5d7d] -> /usr/libexec/dovecot/imap(main+0x620) [0x428f30] -> /lib64/libc.so.6(__libc_start_main+0xf4) [0x3ba081d994] -> /usr/libexec/dovecot/imap [0x419ad9]
#0 0x0000003ba0830265 in raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 pid = <value optimized out> selftid = <value optimized out> #1 0x0000003ba0831d10 in abort () at abort.c:88 act = Could not find the frame base for "abort". sigs = Could not find the frame base for "abort". #2 0x000000000049eded in default_fatal_finish (type=<value optimized out>, status=0) at failures.c:160 backtrace = 0x12be38a8 "/usr/libexec/dovecot/imap [0x49ede0] -> /usr/libexec/dovecot/imap [0x49ee43] -> /usr/libexec/dovecot/imap [0x49e4a6] -> /usr/libexec/dovecot/imap(mail_transaction_log_view_set+0x4ac) [0x486e1c] -> /us"... #3 0x000000000049ee43 in i_internal_fatal_handler (type=LOG_TYPE_PANIC, status=0, fmt=<value optimized out>, args=<value optimized out>) at failures.c:443 No locals. #4 0x000000000049e4a6 in i_panic (format=0x6 <Address 0x6 out of bounds>) at failures.c:207 args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fff2d949840, reg_save_area = 0x7fff2d949780}} #5 0x0000000000486e1c in mail_transaction_log_view_set (view=0x12c56ee0, min_file_seq=<value optimized out>, min_file_offset=9520, max_file_seq=95, max_file_offset=24636, reset_r=0x7fff2d9498cf) at mail-transaction-log-view.c:108 file = <value optimized out> files = <value optimized out> start_offset = <value optimized out> i = <value optimized out> seq = <value optimized out> ret = <value optimized out> __PRETTY_FUNCTION__ = "mail_transaction_log_view_set" #6 0x000000000047c2bf in mail_index_sync_have_any (index=<value optimized out>, flags=<value optimized out>) at mail-index-sync.c:506 view = (struct mail_index_view *) 0x12c56c40 #7 0x000000000043cb8a in maildir_sync_context (ctx=0x12be3728, forced=false, find_uid=0x0, lost_files_r=0x7fff2d949967) at maildir-sync.c:697 sync_flags = <value optimized out> flags = 314502464 new_changed = false cur_changed = false lock_failure = <value optimized out> fname = 0x49d85b "L\211�H\213\\$\bL\213d$\020H\203�\030�\017\037" ret = <value optimized out> __PRETTY_FUNCTION__ = "maildir_sync_context" #8 0x000000000043cf0e in maildir_storage_sync_init (box=0x12bf2a98, flags=0) at maildir-sync.c:924 _data_stack_cur_id = 3 mbox = <value optimized out> ctx = (struct maildir_sync_context *) 0x12be3728 lost_files = <value optimized out> ret = 0 __PRETTY_FUNCTION__ = "maildir_storage_sync_init" #9 0x00000000004283e7 in imap_sync_init (client=0x12beed40, box=0x12bf2a98, imap_flags=IMAP_SYNC_FLAG_SAFE, flags=0) at imap-sync.c:146 ctx = (struct imap_sync_context *) 0x12bf78b0 __PRETTY_FUNCTION__ = "imap_sync_init" #10 0x0000000000428634 in cmd_sync_delayed (client=<value optimized out>) at imap-sync.c:592 cmd = <value optimized out> first_expunge = <value optimized out> first_nonexpunge = (struct client_command_context *) 0x80 __PRETTY_FUNCTION__ = "cmd_sync_delayed" #11 0x0000000000420c5e in client_handle_input (client=0x12beed40) at client.c:729 remove_io = false handled_commands = true __PRETTY_FUNCTION__ = "client_handle_input" #12 0x000000000042164f in client_input (client=0x12beed40) at client.c:753 cmd = <value optimized out> output = (struct ostream *) 0x12bf00e8 bytes = 15 __PRETTY_FUNCTION__ = "client_input" #13 0x00000000004a6c68 in io_loop_handler_run (ioloop=<value optimized out>) at ioloop-epoll.c:208 ctx = <value optimized out> event = (const struct epoll_event *) 0x12bec350 list = (struct io_list *) 0x12bf01c0 io = (struct io_file *) 0x12bfb760 tv = {tv_sec = 1799, tv_usec = 999417} events_count = <value optimized out> t_id = 2 msecs = <value optimized out> ret = 1 i = 0 call = <value optimized out> #14 0x00000000004a5d7d in io_loop_run (ioloop=0x12bec0f0) at ioloop.c:335 No locals. #15 0x0000000000428f30 in main (argc=<value optimized out>, argv=<value optimized out>, envp=0x7fff2d949c18) at main.c:327 No locals.