I setup new server with dovecot 2.1.12 and mboxes from backup (moboxes was used with dovecot 1.1.6). OS: FreeBSD 8.3-STABLE, amd64.

All index files from dovecot 1.1.6 has been deleted.

Some times dovecot processes aborted.

E. g.

Jan 25 03:01:52 ost dovecot: lda(user@example.ru): Panic: file mail-transaction-log-file.c: line 1694 (mail_transaction_log_file_map): assertion failed: (file->buffer != NULL)

(gdb) bt #0 0x0000000800bd610c in kill () from /lib/libc.so.7 #1 0x0000000800bd4f0b in abort () from /lib/libc.so.7 #2 0x000000080099b339 in default_fatal_finish (type=72898, status=0) at failures.c:191 #3 0x000000080099b3be in i_syslog_fatal_handler (ctx=<value optimized out>, format=<value optimized out>, args=<value optimized out>) at failures.c:413 #4 0x000000080099a8a3 in i_panic (format=<value optimized out>) at failures.c:263 #5 0x000000080081bdb6 in mail_transaction_log_file_map (file=0x801670e00, start_offset=40, end_offset=18446744073709551615) at mail-transaction-log-file.c:1694 #6 0x000000080081da41 in mail_transaction_log_view_set (view=0x801654a80, min_file_seq=1, min_file_offset=40, max_file_seq=2, max_file_offset=18446744073709551615, reset_r=0x7fffffffbedf) at mail-transaction-log-view.c:228 #7 0x000000080081519d in mail_index_sync_map (_map=0x801670b08, type=MAIL_INDEX_SYNC_HANDLER_HEAD, force=false) at mail-index-sync-update.c:950 #8 0x0000000800805be0 in mail_index_map (index=0x801670a80, type=MAIL_INDEX_SYNC_HANDLER_HEAD) at mail-index-map-read.c:415 #9 0x0000000800800bde in mail_index_refresh (index=<value optimized out>) at mail-index.c:735 #10 0x00000008007b2344 in mbox_sync_header_refresh (mbox=0x801680840) at mbox-sync.c:1652 #11 0x00000008007b24e2 in mbox_sync_has_changed_full (mbox=0x801680840, leave_dirty=true, empty_r=0x7fffffffe2e8) at mbox-sync.c:1729 #12 0x00000008007ae1a7 in mbox_save_begin (_ctx=0x80161a500, input=0x801669660) at mbox-save.c:296 #13 0x00000008018025ae in notify_save_begin (ctx=0x80161a500, input=0x801669660) at notify-storage.c:130 #14 0x00000008014261fd in quota_save_begin (ctx=0x80161a500, input=0x801669660) at quota-storage.c:251 #15 0x00000008007cfecc in mailbox_save_begin (ctx=0x7fffffffe3d0, input=0x801669660) at mail-storage.c:1652 #16 0x00000008007ca48d in mail_storage_copy (ctx=0x80161a500, mail=0x801637040) at mail-copy.c:68 #17 0x000000080180269d in notify_copy (ctx=0x80161a500, mail=0x801637040) at notify-storage.c:105 #18 0x00000008014262f6 in quota_copy (ctx=0x80161a500, mail=0x801637040) at quota-storage.c:200 #19 0x00000008007cfe04 in mailbox_copy (_ctx=<value optimized out>, mail=0x801637040) at mail-storage.c:1721 #20 0x0000000801b4b706 in act_store_execute (action=<value optimized out>, aenv=0x8016a3070, tr_context=<value optimized out>) at sieve-actions.c:551 #21 0x0000000801b428de in sieve_result_execute (result=0x8016a3040, keep=0x0) at sieve-result.c:1117 #22 0x0000000801b52d5a in sieve_execute (sbin=<value optimized out>, msgdata=<value optimized out>, senv=<value optimized out>, ehandler=<value optimized out>, flags=<value optimized out>, keep=0x0) at sieve.c:508 #23 0x0000000801a0aec6 in lda_sieve_deliver_mail (mdctx=0x7fffffffe970, storage_r=0x7fffffffe8e8) at lda-sieve-plugin.c:424 #24 0x0000000800651735 in mail_deliver (ctx=0x7fffffffe970, storage_r=0x7fffffffe8e8) at mail-deliver.c:390 #25 0x0000000000402ffa in main (argc=6, argv=0x7fffffffea78) at main.c:434 (gdb) f 5 (gdb) p *file $1 = {log = 0x8016463d0, next = 0x0, refcount = 5, filepath = 0x801620420 "(in-memory index).log", fd = -1, st_ino = 13919248, st_dev = 109, last_mtime = 1359082912, last_size = 0, hdr = {major_version = 1 '\001', minor_version = 2 '\002', hdr_size = 40, indexid = 1359082912, file_seq = 2, prev_file_seq = 0, prev_file_offset = 0, create_stamp = 1359082912, initial_modseq = 0, compat_flags = 1 '\001', unused = "\000\000", unused2 = 0}, mmap_buffer = {data = 0x0, used = 0, priv = {0x0, 0x0, 0x0, 0x0, 0x0}}, buffer = 0x0, buffer_offset = 0, mmap_base = 0x0, mmap_size = 0, sync_offset = 40, sync_highest_modseq = 0, saved_tail_offset = 0, max_tail_offset = 0, saved_tail_sync_offset = 0, index_deleted_offset = 0, index_undeleted_offset = 0, modseq_cache = {{offset = 0, highest_modseq = 0}, {offset = 0, highest_modseq = 0}, { offset = 0, highest_modseq = 0}, {offset = 0, highest_modseq = 0}, {offset = 0, highest_modseq = 0}, {offset = 0, highest_modseq = 0}, {offset = 0, highest_modseq = 0}, { offset = 0, highest_modseq = 0}, {offset = 0, highest_modseq = 0}, {offset = 0, highest_modseq = 0}}, file_lock = 0x0, lock_created = 0, locked = 0, locked_sync_offset_updated = 0, corrupted = 0}

Also same aborts can happen in imap processes: Jan 24 16:35:04 ost dovecot: imap(user@example.ru): Panic: file mail-transaction-log-file.c: line 1694 (mail_transaction_log_file_map): assertion failed: (file->buffer != NULL)

-- Anton Yuzhaninov