Hi, I just noticed a similar crash (well same assertion at least) on my production server. No idea what the user did, but I know it's a normal client, not some kind of script.
Since I don't know what the user did I can't reproduce the problem, but
I figured dropping a note won't hurt.
I'm running dovecot 2.2.11 on Arch Linux with ext4, config and
backtraces below.
PS: I'm not subscribed to the list, please make sure to CC me on replies.
Thanks,
Florian
###
> Apr 14 09:49:29 karif dovecot: imap(user): Panic: file
> mail-index-transaction-export.c: line 117 (log_append_ext_intro): assertion
> failed: (intro->ext_id == idx || idx == (uint32_t)-1)
> Apr 14 09:49:29 karif dovecot: imap(user): Error: Raw backtrace:
> /usr/lib/dovecot/libdovecot.so.0(+0x67450) [0x7f842e6c2450] ->
> /usr/lib/dovecot/libdovecot.so.0(+0x6752e) [0x7f842e6c252e] ->
> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f842e67d47e] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(+0xba112) [0x7f842e9e8112] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_transaction_export+0x200)
> [0x7f842e9e85e0] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb979f)
> [0x7f842e9e779f] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_transaction_commit_full+0x9d)
> [0x7f842e9e7bfd] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_transaction_commit+0xc)
> [0x7f842e9e7c9c] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x3e25a)
> [0x7f842e96c25a] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x3e4bc)
> [0x7f842e96c4bc] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x90e45)
> [0x7f842e9bee45] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_get_metadata+0x95)
> [0x7f842e9ab595] -> /us
r/lib/dovecot/libdovecot-storage.so.0(mailbox_list_index_sync_name+0x2a4)
[0x7f842e9bf754] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_list_index_sync+0x10a)
[0x7f842e9bfd7a] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_list_index_refresh+0x9e)
[0x7f842e9bac8e] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x90292)
[0x7f842e9be292] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x90f9b)
[0x7f842e9bef9b] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_get_status+0x31)
[0x7f842e9ab4b1] -> dovecot/imap(imap_status_get+0x67) [0x41d5d7] ->
dovecot/imap(cmd_status+0x123) [0x413133] -> dovecot/imap(command_exec+0x3c)
[0x4170ec] -> dovecot/imap() [0x41614f] -> dovecot/imap() [0x416205] ->
dovecot/imap(client_handle_input+0x115) [0x416505] ->
dovecot/imap(client_input+0x72) [0x416892] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7f842e6d2527] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7) [0x7f842e6d32b7] ->
/usr/lib/dovecot/libdovecot.so.0(io_loo
p_run+0x38) [0x7f842e6d20c8]
> Apr 14 09:49:29 karif dovecot: imap(user): Fatal: master: service(imap):
> child 20156 killed with signal 6 (core dumped)
backtrace from a core dump below, sadly it doesn't contain much
information since the dovecot build I'm running stripped.
> #0 0x00007f842e2e8389 in raise () from /usr/lib/libc.so.6
> #1 0x00007f842e2e9788 in abort () from /usr/lib/libc.so.6
> #2 0x00007f842e6c2446 in ?? () from /usr/lib/dovecot/libdovecot.so.0
> #3 0x00007f842e6c252e in ?? () from /usr/lib/dovecot/libdovecot.so.0
> #4 0x00007f842e67d47e in i_panic () from /usr/lib/dovecot/libdovecot.so.0
> #5 0x00007f842e9e8112 in ?? () from /usr/lib/dovecot/libdovecot-storage.so.0
> #6 0x00007f842e9e85e0 in mail_index_transaction_export () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #7 0x00007f842e9e779f in ?? () from /usr/lib/dovecot/libdovecot-storage.so.0
> #8 0x00007f842e9e7bfd in mail_index_transaction_commit_full () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #9 0x00007f842e9e7c9c in mail_index_transaction_commit () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #10 0x00007f842e96c25a in ?? () from /usr/lib/dovecot/libdovecot-storage.so.0
> #11 0x00007f842e96c4bc in ?? () from /usr/lib/dovecot/libdovecot-storage.so.0
> #12 0x00007f842e9bee45 in ?? () from /usr/lib/dovecot/libdovecot-storage.so.0
> #13 0x00007f842e9ab595 in mailbox_get_metadata () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #14 0x00007f842e9bf754 in mailbox_list_index_sync_name () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #15 0x00007f842e9bfd7a in mailbox_list_index_sync () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #16 0x00007f842e9bac8e in mailbox_list_index_refresh () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #17 0x00007f842e9be292 in ?? () from /usr/lib/dovecot/libdovecot-storage.so.0
> #18 0x00007f842e9bef9b in ?? () from /usr/lib/dovecot/libdovecot-storage.so.0
> #19 0x00007f842e9ab4b1 in mailbox_get_status () from
> /usr/lib/dovecot/libdovecot-storage.so.0
> #20 0x000000000041d5d7 in imap_status_get ()
> #21 0x0000000000413133 in cmd_status ()
> #22 0x00000000004170ec in command_exec ()
> #23 0x000000000041614f in ?? ()
> #24 0x0000000000416205 in ?? ()
> #25 0x0000000000416505 in client_handle_input ()
> #26 0x0000000000416892 in client_input ()
> #27 0x00007f842e6d2527 in io_loop_call_io () from
> /usr/lib/dovecot/libdovecot.so.0
> #28 0x00007f842e6d32b7 in io_loop_handler_run () from
> /usr/lib/dovecot/libdovecot.so.0
> #29 0x00007f842e6d20c8 in io_loop_run () from /usr/lib/dovecot/libdovecot.so.0
> #30 0x00007f842e682683 in master_service_run () from
> /usr/lib/dovecot/libdovecot.so.0
> #31 0x000000000040b44f in main ()
config:
> # 2.2.11: /etc/dovecot/dovecot.conf
> # OS: Linux 3.13.8-1-ARCH x86_64 Arch Linux
> auth_mechanisms = plain login
> auth_username_format = %Ln
> login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k
> mail_location = mdbox:~/.mdbox
> mail_plugins = " zlib notify mail_log"
> 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
> namespace inbox {
> hidden = no
> inbox = yes
> list = yes
> location =
> mailbox Drafts {
> auto = subscribe
> special_use = \Drafts
> }
> mailbox Junk {
> auto = subscribe
> special_use = \Junk
> }
> mailbox Sent {
> auto = subscribe
> special_use = \Sent
> }
> mailbox Trash {
> auto = subscribe
> special_use = \Trash
> }
> prefix =
> separator = .
> type = private
> }
> passdb {
> driver = pam
> }
> plugin {
> mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
> mail_log_fields = uid box msgid size
> sieve = ~/.dovecot.sieve
> sieve_dir = ~/.sieve
> sieve_global_dir = /etc/dovecot/sieve/global/
> sieve_global_path = /etc/dovecot/sieve/default.sieve
> zlib_save = gz
> zlib_save_level = 6
> }
> protocols = imap pop3 sieve lmtp
> service auth {
> unix_listener auth-client {
> group = postfix
> mode = 0660
> user = postfix
> }
> user = root
> }
> service imap-login {
> process_limit = 400
> process_min_avail = 5
> }
> service lmtp {
> unix_listener /var/spool/postfix/private/dovecot-lmtp {
> group = postfix
> mode = 0660
> user = postfix
> }
> }
> service managesieve-login {
> inet_listener sieve-obsolete {
> port = 2000
> }
> }
> ssl_cert = </etc/ssl/my-certs/mail.pem
> ssl_cipher_list =
> DHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-ECDSA-AES256-SHA384:DHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-ECDSA-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-SHA256:ECDHE-RSA-AES256-SHA256:DHE-ECDSA-AES128-SHA256:DHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:EDH-RSA-DES-CBC3-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ALL:!LOW:!SSLv2:!EXP:!aNULL
> ssl_key = </etc/ssl/private/server.key
> userdb {
> driver = passwd
> }
> protocol imap {
> imap_client_workarounds = tb-extra-mailbox-sep
> mail_max_userip_connections = 30
> mail_plugins = " zlib notify mail_log"
> }
> protocol lda {
> mail_plugins = " zlib notify mail_log sieve"
> postmaster_address = postmas...@server-speed.net
> }
> protocol lmtp {
> mail_plugins = " zlib notify mail_log sieve"
> postmaster_address = postmas...@server-speed.net
> }
> protocol sieve {
> managesieve_logout_format = bytes ( in=%i : out=%o )
> }
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