[Dovecot] flock problems with index files and passwd-file

[Michal Soltys]

Michal Soltys wrote:
> 
> Below is the relevant fragment of ktrace:
> 

In addition, here's full backtrace of such "hanged" imap process. If there is
anything else that could help, just let me know.


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(gdb) attach 31971
Attaching to process 31971
0x0d352059 in ?? ()
(gdb) bt full
#0  0x0d352059 in ?? ()
No symbol table info available.
#1  0x1c0449fa in mail_index_lock_fd (index=0x8b20a300, path=0x893072c0 "/home/regular/test/Maildir/dovecot.index.log",
     fd=8, lock_type=3, timeout_secs=120) at mail-index-lock.c:103
	operation = 131
	ret = 3
#2  0x1c04c58a in mail_transaction_log_file_lock (file=0x8b9f7300) at mail-transaction-log.c:202
	ret = 131
#3  0x1c04e2c8 in mail_transaction_log_lock_head (log=0x8b9f7200) at mail-transaction-log.c:1385
	file = (struct mail_transaction_log_file *) 0x8b9f7300
	ret = 0
#4  0x1c04e348 in mail_transaction_log_sync_lock (log=0x8b9f7200, file_seq_r=0x83, file_offset_r=0x83)
     at mail-transaction-log.c:1417
No locals.
#5  0x1c0435a4 in mail_index_create (index=0x8b20a300, hdr=0xcfbc3040) at mail-index.c:1446
	path = 0xcfbc3018 "Ř0ĽĎ89\004\034"
	seq = 470075784
	offset = 6629139200
	ret = -2017967424
#6  0x1c043938 in mail_index_open_files (index=0x8b20a300, flags=41) at mail-index.c:1591
	hdr = {major_version = 7 '\a', minor_version = 0 '\0', base_header_size = 120, header_size = 120, record_size = 8,
   compat_flags = 1 '\001', unused = "\000\000", indexid = 1174041675, flags = 0, uid_validity = 0, next_uid = 1,
   messages_count = 0, recent_messages_count = 0, seen_messages_count = 0, deleted_messages_count = 0,
   first_recent_uid_lowwater = 0, first_unseen_uid_lowwater = 0, first_deleted_uid_lowwater = 0, log_file_seq = 0,
   log_file_int_offset = 0, log_file_ext_offset = 0, sync_size = 0, sync_stamp = 0, day_stamp = 0, day_first_uid = {0, 0, 0,
     0, 0, 0, 0, 0}}
	lock_id = 0
	ret = 0
	create = true
	created = false
#7  0x1c043b0b in mail_index_open (index=0x8b20a300, flags=41, lock_method=MAIL_INDEX_LOCK_FLOCK) at mail-index.c:1664
	i = 0
	ret = -2014570316
#8  0x1c03c829 in index_storage_mailbox_init (ibox=0x87ec1838, name=0x83 <Error reading address 0x83: Invalid argument>,
     flags=0, move_to_memory=false) at index-storage.c:366
	storage = (struct mail_storage *) 0x87ec1438
	index_flags = 41
	lock_method = MAIL_INDEX_LOCK_FLOCK
	ret = 131
#9  0x1c01ae9b in maildir_open (storage=0x87ec1438, name=0x3c002056 "INBOX", flags=0) at maildir-storage.c:548
	mbox = (struct maildir_mailbox *) 0x87ec1838
	index = (struct mail_index *) 0x8b20a300
	path = 0x87ec14f0 "/home/regular/test/Maildir"
	index_dir = 0x13c <Error reading address 0x13c: Invalid argument>
	control_dir = 0x87ec14f0 "/home/regular/test/Maildir"
	st = {st_dev = 1174041675, st_ino = 795541000, st_mode = 1174041675, st_nlink = 795541000, st_uid = 1174041675,
   st_gid = 795541000, st_rdev = 512, st_lspare0 = 0, st_atimespec = {tv_sec = 4, tv_nsec = 0}, st_mtimespec = {
     tv_sec = 16384, tv_nsec = 0}, st_ctimespec = {tv_sec = 0, tv_nsec = -799543376}, st_size = 2018082489208909584,
   st_blocks = -8652517760780462832, st_blksize = 1007603712, st_flags = 1, st_gen = 1007599432, st_lspare1 = -1,
   __st_birthtimespec = {tv_sec = 0, tv_nsec = -2014571464}, st_qspare = {4323491224065152056, 2018083833114276360}}
	shared = 0
	pool = 0x87ec1810
#10 0x1c01afb7 in maildir_mailbox_open (_storage=0x87ec1438, name=0x3c002056 "INBOX", input=0x0, flags=0)
     at maildir-storage.c:597
	path = 0x3c00205c "NAMESPACE_%u_HIDDEN"
	st = {st_dev = -2014572480, st_ino = 3485217516, st_mode = 3485217384, st_nlink = 469867939, st_uid = 2217791736,
   st_gid = 1006641238, st_rdev = 5, st_lspare0 = -1993314240, st_atimespec = {tv_sec = 1, tv_nsec = -809749780},
   st_mtimespec = {tv_sec = -809749896, tv_nsec = 17135864}, st_ctimespec = {tv_sec = 0, tv_nsec = 0},
   st_size = -8385860524382826248, st_blocks = -3477848820700712960, st_blksize = 3485217416, st_flags = 469868303,
   st_gen = 2280394816, st_lspare1 = -809749780, __st_birthtimespec = {tv_sec = 1, tv_nsec = 469836456}, st_qspare = {
     6596620352, 2017942159323050664}}
#11 0x1c053472 in mailbox_open (storage=0x83, name=0x3c002056 "INBOX", input=0x0, flags=0) at mail-storage.c:365
No locals.
#12 0x1c010cfe in _cmd_select_full (cmd=0x8b9f7048, readonly=false) at cmd-select.c:32
	client = (struct client *) 0x8b9f7000
	storage = (struct mail_storage *) 0x87ec1438
	box = (struct mailbox *) 0x2d32fcc0
	status = {messages = 1, recent = 2211005072, unseen = 3485217576, uidvalidity = 221532759, uidnext = 2279792712,
   first_unseen_seq = 1006636590, keywords = 0x8b9f7000, keywords__type = 0xcfbc3368}
	mailbox = 0x3c002056 "INBOX"
#13 0x1c010ea4 in cmd_select (cmd=0x8b9f7048) at cmd-select.c:92
No locals.
#14 0x1c0125f6 in client_handle_input (cmd=0x8b9f7048) at client.c:332
	client = (struct client *) 0x8b9f7000
#15 0x1c012570 in client_handle_input (cmd=0x8b9f7048) at client.c:389
	client = (struct client *) 0x8b9f7000
#16 0x1c0126de in _client_input (context=0x8b9f7000) at client.c:432
	client = (struct client *) 0x8b9f7000
	cmd = (struct client_command_context *) 0x8b9f7048
	ret = 2
#17 0x1c064ab8 in io_loop_handler_run (ioloop=0x89307000) at ioloop-kqueue.c:153
	ctx = (struct ioloop_handler_context *) 0x87b84100
	events = (struct kevent *) 0x2
	tv = {tv_sec = 9, tv_usec = 997652}
	ts = {tv_sec = 9, tv_nsec = 997652000}
	io = (struct io *) 0x87b842a0
	events_count = 3
	t_id = 2
	ret = 1
	i = 0
#18 0x1c0641ad in io_loop_run (ioloop=0x89307000) at ioloop.c:323
No locals.
#19 0x1c019823 in main (argc=3, argv=0xcfbc34ac, envp=0xcfbc34bc) at main.c:287
No locals.
(gdb) detach
Detaching from program: , process 31971
(gdb) quit