lmtp 2.3.2.1 segfault with backtrace

Tue Aug 14 12:44:31 EEST 2018

lmtp on Director crash with 2.3.2.1

# gdb /usr/libexec/dovecot/lmtp /var/core/60174
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-92.el6)
Copyright (C) 2010 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-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/libexec/dovecot/lmtp...Reading symbols from 
/usr/lib/debug/usr/libexec/dovecot/lmtp.debug...done.
done.
[New Thread 60174]
Reading symbols from /usr/lib64/dovecot/libdovecot-lda.so.0...Reading 
symbols from 
/usr/lib/debug/usr/lib64/dovecot/libdovecot-lda.so.0.0.0.debug...done.
done.
Loaded symbols for /usr/lib64/dovecot/libdovecot-lda.so.0
Reading symbols from 
/usr/lib64/dovecot/libdovecot-storage.so.0...Reading symbols from 
/usr/lib/debug/usr/lib64/dovecot/libdovecot-storage.so.0.0.0.debug...done.
done.
Loaded symbols for /usr/lib64/dovecot/libdovecot-storage.so.0
Reading symbols from /usr/lib64/dovecot/libdovecot.so.0...Reading 
symbols from 
/usr/lib/debug/usr/lib64/dovecot/libdovecot.so.0.0.0.debug...done.
done.
Loaded symbols for /usr/lib64/dovecot/libdovecot.so.0
Reading symbols from /lib64/libc.so.6...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/librt.so.1...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/librt.so.1
Reading symbols from /lib64/libdl.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols 
found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from 
/usr/lib64/dovecot/libssl_iostream_openssl.so...Reading symbols from 
/usr/lib/debug/usr/lib64/dovecot/libssl_iostream_openssl.so.debug...done.
done.
Loaded symbols for /usr/lib64/dovecot/libssl_iostream_openssl.so
Reading symbols from /usr/lib64/libssl.so.10...(no debugging symbols 
found)...done.
Loaded symbols for /usr/lib64/libssl.so.10
Reading symbols from /usr/lib64/libcrypto.so.10...(no debugging symbols 
found)...done.
Loaded symbols for /usr/lib64/libcrypto.so.10
Reading symbols from /lib64/libgssapi_krb5.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libgssapi_krb5.so.2
Reading symbols from /lib64/libkrb5.so.3...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libkrb5.so.3
Reading symbols from /lib64/libcom_err.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libcom_err.so.2
Reading symbols from /lib64/libk5crypto.so.3...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libk5crypto.so.3
Reading symbols from /lib64/libz.so.1...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libkrb5support.so.0...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libkrb5support.so.0
Reading symbols from /lib64/libkeyutils.so.1...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libkeyutils.so.1
Reading symbols from /lib64/libresolv.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libresolv.so.2
Reading symbols from /lib64/libselinux.so.1...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libselinux.so.1
Core was generated by `dovecot/lmtp'.
Program terminated with signal 11, Segmentation fault.
#0  smtp_client_command_set_replies (cmd=0x0, replies=1) at 
smtp-client-command.c:401
401             i_assert(cmd->replies_expected == 1 ||
Missing separate debuginfos, use: debuginfo-install 
glibc-2.12-1.212.el6.x86_64 keyutils-libs-1.4-5.el6.x86_64 
krb5-libs-1.10.3-65.el6.x86_64 libcom_err-1.41.12-24.el6.x86_64 
libselinux-2.0.94-7.el6.x86_64 openssl-1.0.1e-57.el6.x86_64 
zlib-1.2.3-29.el6.x86_64
(gdb) bt full
#0  smtp_client_command_set_replies (cmd=0x0, replies=1) at 
smtp-client-command.c:401
         __func__ = "smtp_client_command_set_replies"
#1  0x00007f5d14f40f3f in smtp_client_transaction_data_cb 
(reply=0x7ffe5cd19650, trans=0x7f5d176ae2b8) at 
smtp-client-transaction.c:658
         conn = 0x7f5d176ade80
         rcpt = 0x7f5d176ae560
         i = <value optimized out>
         count = 1
#2  0x00007f5d14f3e941 in smtp_client_command_fail_reply (_cmd=<value 
optimized out>, reply=0x7ffe5cd19650) at smtp-client-command.c:299
         cmd = 0x7f5d17600d18
         tmp_cmd = <value optimized out>
         conn = 0x7f5d176ade80
         state = <value optimized out>
         callback = 0x7f5d14f40e80 <smtp_client_transaction_data_cb>
#3  0x00007f5d14f4113f in smtp_client_transaction_fail_reply 
(trans=0x7f5d176ae2b8, reply=0x7ffe5cd19650) at 
smtp-client-transaction.c:365
         conn = 0x7f5d176ade80
         rcpts = <value optimized out>
         i = <value optimized out>
         count = <value optimized out>
         __func__ = "smtp_client_transaction_fail_reply"
#4  0x00007f5d14f41442 in smtp_client_transaction_timeout 
(trans=0x7f5d176ae2b8) at smtp-client-transaction.c:419
         reply = {status = 451, enhanced_code = {x = 4, y = 4, z = 0}, 
text_lines = 0x7f5d1759c090}
#5  0x00007f5d14fdbe7b in io_loop_handle_timeouts_real 
(ioloop=0x7f5d175a4c80) at ioloop.c:641
         timeout = 0x7f5d176299d0
         tv = {tv_sec = 0, tv_usec = 0}
         tv_call = {tv_sec = 1534202969, tv_usec = 770866}
         t_id = 3
         item = 0x7f5d176299d0
#6  io_loop_handle_timeouts (ioloop=0x7f5d175a4c80) at ioloop.c:655
         _data_stack_cur_id = 2
#7  0x00007f5d14fdd667 in io_loop_handler_run_internal 
(ioloop=0x7f5d175a4c80) at ioloop-epoll.c:195
         ctx = 0x7f5d175af300
         events = <value optimized out>
         event = <value optimized out>
         list = <value optimized out>
         io = <value optimized out>
         tv = {tv_sec = 34, tv_usec = 105308}
         events_count = <value optimized out>
         msecs = <value optimized out>
         ret = 0
         i = <value optimized out>
         call = <value optimized out>
         __func__ = "io_loop_handler_run_internal"
#8  0x00007f5d14fdb7c5 in io_loop_handler_run (ioloop=0x7f5d175a4c80) at 
ioloop.c:726
         __func__ = "io_loop_handler_run"
#9  0x00007f5d14fdb9e8 in io_loop_run (ioloop=0x7f5d175a4c80) at 
ioloop.c:699
         __func__ = "io_loop_run"
#10 0x00007f5d14f58963 in master_service_run (service=0x7f5d175a4b10, 
callback=<value optimized out>) at master-service.c:767
No locals.
#11 0x00007f5d159eb584 in main (argc=1, argv=0x7f5d175a48a0) at 
main.c:158
         set_roots = {0x7f5d15262e20, 0x7f5d157c2040, 0x7f5d15bf1540, 
0x0}
         service_flags = <value optimized out>
         storage_service_flags = <value optimized out>
         tmp_base_dir = 0x7f5d1759c040 "erver not answering (transaction 
timed out while waiting for reply to DATA)"
         c = <value optimized out>
         error = <value optimized out>


-- 
Tom