Hello,

The current version of LDA can crash (seg fault 11) under certain circumstances.

I don't know why it happens only with some accounts, but here is a backtrace. The user has a sieve filter in place :

(gdb) bt full #0 0x0000000800443434 in smtp_client_open () from /usr/lib/dovecot/libdovecot-lda.so.0 No symbol table info available. #1 0x00000008009943ab in lda_sieve_smtp_open.2406.2210 () from /usr/lib/dovecot/lib90_sieve_plugin.so No symbol table info available. #2 0x0000000800e80532 in sieve_smtp_open () from /usr/lib/dovecot/libdovecot-sieve.so.0 No symbol table info available. #3 0x0000000800e6157d in act_redirect_send.23018 () from /usr/lib/dovecot/libdovecot-sieve.so.0 No symbol table info available. #4 0x0000000800e7e175 in act_redirect_commit.23025 () from /usr/lib/dovecot/libdovecot-sieve.so.0 No symbol table info available. #5 0x0000000800e5f2bd in sieve_result_execute () from /usr/lib/dovecot/libdovecot-sieve.so.0 No symbol table info available. #6 0x0000000800e5ee7b in sieve_multiscript_execute.25305 () from /usr/lib/dovecot/libdovecot-sieve.so.0 No symbol table info available. #7 0x0000000800e496f8 in sieve_multiscript_run () from /usr/lib/dovecot/libdovecot-sieve.so.0 No symbol table info available. #8 0x0000000800994652 in lda_sieve_multiscript_execute.2399.2297 () from /usr/lib/dovecot/lib90_sieve_plugin.so No symbol table info available. #9 0x00000008009942c7 in lda_sieve_deliver_mail.2402.2206 () from /usr/lib/dovecot/lib90_sieve_plugin.so No symbol table info available. #10 0x00000008004435d8 in mail_deliver () from /usr/lib/dovecot/libdovecot-lda.so.0 No symbol table info available. #11 0x00000000004029f7 in main (argc=7, argv=0x7fffffffe830) at main.c:434 set_roots = {0x404520, 0x0} ctx = {pool = 0x800a0d820, set = 0x800a3cc98, session = 0x800a0d840, dup_ctx = 0x800abf0c0, session_id = 0x0, src_mail = 0x800a34840, src_envelope_sender = 0x800a0d858 "mailtest@example.com", dest_user = 0x800a89040, dest_addr = 0x7fffffffebfd "test@example.com", final_dest_addr = 0x7fffffffebfd "test@example.com", dest_mailbox_name = 0x40356b "INBOX", dest_mail = 0x0, var_expand_table = 0x0, tried_default_save = false, saved_mail = false, save_dest_mail = false, mailbox_full = false, dsn = false} service_flags = 1027 user = (const __unknown__ *) 0x7fffffffebcc "test@example.com" errstr = (const __unknown__ *) 0x0 path = (const __unknown__ *) 0x0 storage_service = (struct mail_storage_service_ctx *) 0x800a30840 service_user = (struct mail_storage_service_user *) 0x800a3c0a0 service_input = {module = 0x403567 "lda", service = 0x403567 "lda", username = 0x7fffffffebcc "test@example.com", session_id = 0x0, local_ip = {family = 0, u = {ip6 = {__u6_addr = {__u6_addr8 = '\0' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = { s_addr = 0}}}, remote_ip = {family = 0, u = {ip6 = {__u6_addr = {__u6_addr8 = '\0' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, local_port = 0, remote_port = 0, userdb_fields = 0x0, flags_override_add = 0, flags_override_remove = 0, no_userdb_lookup = 0} storage = (struct mail_storage *) 0x0 user_source = (const __unknown__ *) 0x4034c0 "" destaddr_source = (const __unknown__ *) 0x403576 "-a parameter" process_euid = 0 stderr_rejection = false ret = 1 c = -1 error = MAIL_ERROR_NONE

Cheers,

Olivier