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List:       dovecot
Subject:    Re: Latest Dovecot v2.2.devel (9bc8d9b) crashes on login and lmtp
From:       Aki Tuomi <aki.tuomi () dovecot ! fi>
Date:       2016-12-20 8:25:50
Message-ID: 1923034671.537.1482222351739 () appsuite-dev ! open-xchange ! com
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> On December 20, 2016 at 10:21 AM Thomas Leuxner <tlx@leuxner.net> wrote:
> 
> 
> I was unable to produce an IMAP core but have been successful with LMTP. Basically \
> it crashes right upon login or delivery: 
> Dec 20 08:55:23 nihlus dovecot: master: Dovecot v2.2.devel (9bc8d9b) starting up \
>                 for imap, lmtp
> Dec 20 08:56:15 nihlus dovecot: imap(tlx@leuxner.net): Fatal: master: \
>                 service(imap): child 5710 killed with signal 11 (core not dumped)
> Dec 20 08:57:23 nihlus dovecot: lmtp(5967): Connect from local
> Dec 20 08:57:23 nihlus dovecot: lmtp(5967): Fatal: master: service(lmtp): child \
> 5967 killed with signal 11 (core dumped) 
> $ gdb /usr/lib/dovecot/lmtp core_lmtp.5967.nihlus.leuxner.net
> GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
> Copyright (C) 2014 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
> <http://www.gnu.org/software/gdb/documentation/>.
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from /usr/lib/dovecot/lmtp...Reading symbols from \
> /usr/lib/debug/.build-id/ec/199069dd786feb54e5af43f983ce9c3bb4c29c.debug...done. \
> done. [New LWP 5967]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> Core was generated by `dovecot/lmtp'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  __memcpy_sse2_unaligned () at \
> ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:33 33      \
> ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S: No such file or directory. #0  \
> __memcpy_sse2_unaligned () at \
> ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:33 No locals.
> #1  0x00007f9177db4779 in memcpy (__len=<optimized out>, __src=0x0, \
> __dest=0x7f917a5c5bf8) at /usr/include/x86_64-linux-gnu/bits/string3.h:51 No \
> locals. #2  p_strconcat (pool=<optimized out>, str1=<optimized out>) at \
> strfuncs.c:218 args = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = \
> 0x7ffdcadea060, reg_save_area = 0x7ffdcade9f90}} temp = 0x0
> ret = <optimized out>
> len = 49
> #3  0x00007f91780744fd in mdbox_storage_create (_storage=0x7f917a5c5930, \
> ns=0x7f917a5b79d0, error_r=0x7ffdcadea1a0) at mdbox-storage.c:57 storage = \
> 0x7f917a5c5930 dir = <optimized out>
> #4  0x00007f917805952b in mail_storage_create_full (ns=ns@entry=0x7f917a5b79d0, \
> driver=<optimized out>, driver@entry=0x0, data=<optimized out>, \
> flags=flags@entry=(unknown: 0), storage_r=storage_r@entry=0x7ffdcadea170, \
> error_r=error_r@entry=0x7ffdcadea1a0) at mail-storage.c:395 storage = \
> 0x7f917a5c5930 list = 0x7f917a5c3ca0
> list_set = {layout = 0x7f91781083c6 "fs", root_dir = 0x7f917a52e100 \
> "/var/vmail/domains/leuxner.net/tlx/mdbox", index_dir = 0x0, index_pvt_dir = 0x0, \
> control_dir = 0x0, alt_dir = 0x0, inbox_path = 0x0, subscription_fname = \
> 0x7f917810f234 "subscriptions", list_index_fname = 0x7f917810925e \
> "dovecot.list.index", maildir_name = 0x7f917810bc17 "dbox-Mails", mailbox_dir_name \
> = 0x7f917810c301 "mailboxes", escape_char = 0 '\000', broken_char = 0 '\000', utf8 \
> = false, alt_dir_nocheck = false, index_control_use_maildir_name = false} \
> list_flags = <optimized out> p = <optimized out>
> __FUNCTION__ = "mail_storage_create_full"
> #5  0x00007f91780598cc in mail_storage_create (ns=ns@entry=0x7f917a5b79d0, \
> driver=driver@entry=0x0, flags=flags@entry=(unknown: 0), \
> error_r=error_r@entry=0x7ffdcadea1a0) at mail-storage.c:416 storage = \
> 0x7f917a5bfc90 #6  0x00007f9178051b89 in mail_namespaces_init_add \
> (user=user@entry=0x7f917a5bfc90, ns_set=<optimized out>, \
> unexpanded_ns_set=0x7f917a5c0178, ns_p=ns_p@entry=0x7ffdcadea200, \
> error_r=error_r@entry=0x7ffdcadea290) at mail-namespace.c:195 mail_set = <optimized \
> out> ns = 0x7f917a5b79d0
> driver = 0x0
> error = 0x0
> ret = <optimized out>
> #7  0x00007f9178052cd9 in mail_namespaces_init (user=0x7f917a5bfc90, \
> error_r=error_r@entry=0x7ffdcadea290) at mail-namespace.c:414 mail_set = \
> 0x7f917a5c0c58 ns_set = 0x7f917a5c0f70
> unexpanded_ns_set = 0x7f917a5c0150
> namespaces = 0x0
> ns_p = 0x7ffdcadea200
> i = <optimized out>
> count = <optimized out>
> count2 = <optimized out>
> __FUNCTION__ = "mail_namespaces_init"
> #8  0x00007f9178060b65 in mail_storage_service_init_post (ctx=<optimized out>, \
> error_r=0x7ffdcadea290, mail_user_r=<optimized out>, priv=0x7ffdcadea2a0, \
> user=0x7f917a573910) at mail-storage-service.c:728 mail_set = 0x7f917a5c0c58
> home = 0x7f917a59e761 "/var/vmail/domains/leuxner.net/tlx"
> mail_user = 0x7f917a5bfc90
> #9  mail_storage_service_next_real (mail_user_r=<optimized out>, \
> user=0x7f917a573910, ctx=<optimized out>) at mail-storage-service.c:1427 len = \
> <optimized out> temp_priv_drop = <optimized out>
> priv = {uid = 5000, gid = 5000, uid_source = 0x7f9178107684 "userdb lookup", \
> gid_source = 0x7f9178107684 "userdb lookup", home = 0x7f917a59e761 \
> "/var/vmail/domains/leuxner.net/tlx", chroot = 0x7f917a52d458 ""}
> error = 0x7f917a5b3830 ""
> disallow_root = <optimized out>
> use_chroot = <optimized out>
> #10 mail_storage_service_next (ctx=<optimized out>, user=0x7f917a573910, \
> mail_user_r=mail_user_r@entry=0x7f917a560b48) at mail-storage-service.c:1445 \
> old_log_prefix = 0x7f917a5ba530 "lmtp(5967, tlx@leuxner.net): " #11 \
> 0x00007f9178789f55 in client_deliver (session=0x7f917a5bf880, \
> src_mail=0x7f917a5bb060, rcpt=0x7f917a5621d0, client=0x7f917a560a10) at \
> commands.c:837 set_parser = <optimized out>
> line = <optimized out>
> str = <optimized out>
> mail_error = 2052462064
> ret = <optimized out>
> input = <optimized out>
> ns = <optimized out>
> delivery_time_started = {tv_sec = 1482220643, tv_usec = 129544}
> sets = <optimized out>
> storage = 0x7f917a5b3870
> mail_set = <optimized out>
> username = 0x7f917a52d070 "tlx@leuxner.net"
> dctx = {pool = 0x0, set = 0x7f917a560a10, session = 0x0, timeout_secs = 0, \
> session_time_msecs = 0, delivery_time_started = {tv_sec = 140262799447056, tv_usec \
> = 140262799447168}, dup_ctx = 0x2, session_id = 0x7f9177d980d8 \
> <i_stream_file_read+136> \
> "H\211\305H\211\350H\301\350?\204\300D\017\266\350\017\205\030\001", src_mail = \
> 0xf72, src_envelope_sender = 0xf65305b35804d500 <error: Cannot access memory at \
> address 0xf65305b35804d500>, dest_user = 0x0, dest_addr = 0x7f917a561410 "\001", \
> final_dest_addr = 0x7f917a561480 "q ", dest_mailbox_name = 0x2 <error: Cannot \
> access memory at address 0x2>, dest_mail = 0x0, var_expand_table = 0x7f9177d93c33 \
> <i_stream_read+83>, tempfail_error = 0x7f917a560a10 "", tried_default_save = 64, \
> saved_mail = 71, save_dest_mail = 83, mailbox_full = 122, dsn = 145} lda_set = \
> <optimized out> error = <optimized out>
> #12 client_deliver_next (session=0x7f917a5bf880, src_mail=0x7f917a5bb060, \
> client=0x7f917a560a10) at commands.c:930 count = <optimized out>
> #13 client_input_data_write_local (input=<optimized out>, client=0x7f917a560a10) at \
> commands.c:1026 src_mail = 0x7f917a5bb060
> first_uid = 4294967295
> session = 0x7f917a5bf880
> old_uid = 0
> #14 client_input_data_write (client=0x7f917a560a10) at commands.c:1161
> input = 0x7f917a57d1f0
> #15 client_input_data_handle (client=0x7f917a560a10) at commands.c:1256
> data = <optimized out>
> size = 110
> ret = <optimized out>
> #16 0x00007f9177d9d962 in io_loop_call_io (io=0x7f917a5615f0) at ioloop.c:599
> ioloop = 0x7f917a534740
> t_id = 2
> __FUNCTION__ = "io_loop_call_io"
> #17 0x00007f9177d9efba in io_loop_handler_run_internal \
> (ioloop=ioloop@entry=0x7f917a534740) at ioloop-epoll.c:222 ctx = 0x7f917a53a370
> io = <optimized out>
> tv = {tv_sec = 299, tv_usec = 984106}
> events_count = <optimized out>
> msecs = <optimized out>
> ret = 1
> i = 0
> j = <optimized out>
> call = <optimized out>
> __FUNCTION__ = "io_loop_handler_run_internal"
> #18 0x00007f9177d9d9fc in io_loop_handler_run (ioloop=ioloop@entry=0x7f917a534740) \
> at ioloop.c:648 No locals.
> #19 0x00007f9177d9dba8 in io_loop_run (ioloop=0x7f917a534740) at ioloop.c:623
> __FUNCTION__ = "io_loop_run"
> #20 0x00007f9177d25a83 in master_service_run (service=0x7f917a5345e0, \
> callback=<optimized out>) at master-service.c:641 No locals.
> #21 0x00007f9178788262 in main (argc=1, argv=0x7f917a534390) at main.c:125
> set_roots = {0x7f917855e400 <lda_setting_parser_info>, 0x7f917898f580 \
> <lmtp_setting_parser_info>, 0x0} service_flags = <optimized out>
> storage_service_flags = <optimized out>
> c = <optimized out>
> 

Hi!

Thank you for your report, we will look into it.

Aki


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