Dovecot process died with assertion failed

12 Feb 2020


      Hi,
I'm testing Dovecot v2.3.9.2.
So, I found a problem that a Dovecot process termed with Panic, like below:
Feb 10 08:50:09 imap(user1@example.com)<38440><p9ec0zSeSIQKEAIK>: Panic: file message-snippet.c: line 71 (snippet_add_content): assertion failed: (*count_r <= size)
Feb 10 08:50:09 imap(user1@example.com)<38440><p9ec0zSeSIQKEAIK>: Error: Raw backtrace: /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(backtrace_append+0x3b) [0x7fee4c46331b] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fee4c46346e] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(+0xfc90b) [0x7fee4c46f90b] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(+0xfc9c1) [0x7fee4c46f9c1] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fee4c3b470a] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(+0xdea53) [0x7fee4c451a53] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(+0xdcd98) [0x7fee4c80bd98] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(+0xdd1a5) [0x7fee4c80c1a5] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(index_mail_get_special+0x2c1) [0x7fee4c80c591] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(dbox_mail_get_special+0x48) [0x7fee4c7adeb8] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(+0x78f2b) [0x7fee4c7a7f2b] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(mail_get_special+0x10) [0x7fee4c76f3e0] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c5845b] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c559df] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c578b5] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c44aaf] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c535b9] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c50acf] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c50b87] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c51885] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c5206e] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x7b) [0x7fee4c48bcdb] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x105) [0x7fee4c48dd55] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x59) [0x7fee4c48bde9] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fee4c48c098] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fee4c3e9623] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c40d37] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fee4bfc7545] -> dovecot-backend-server/imap user1@example.com 10.16.2.10 UID FETCH [0x55ffc6c40fb4]
Feb 10 08:50:09 imap(user1@example.com)<38440><p9ec0zSeSIQKEAIK>: Fatal: master: service(imap): child 38440 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps)
It was occurred this by a mail had ISO-2022-JP content (Single part mail).
I saw that the mail was not strange.
When I appended the mail with IMAP APPEND command, that no problem happened.
I think the problem comes by LMTP only.
Any idea?
Regards,
--
Tachibana, Masashi  QUALITIA CO., LTD.
mailto:tachibana@qualitia.co.jp
https://www.qualitia.co.jp/

TACHIBANA Masashi

TACHIBANA Masashi

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