Re: debian10+dovecot-2.2.33.2

24 Jan 2019

      Hi
Thenx. Dump core:
Core was generated by `dovecot/auth'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fa910394c7a in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt full
#0  0x00007fa910394c7a in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00005604e6f98bc8 in password_scheme_register_crypt () at
password-scheme-crypt.c:144
i = 0
crypted = <optimized out>
#2  0x00005604e6f988dc in password_schemes_init () at password-scheme.c:875
i = <optimized out>
#3  0x00005604e6f737fb in main_preinit () at main.c:188
mod_set = {abi_version = 0x119a20dc , binary_name = 0x7fa9102c95e0 <_gnutls_log_level>
"", setting_name = 0x0,
filter_callback = 0x7fa910241cfb, filter_context =
0x756e654700000004, require_init_funcs = 1, debug = 0,
ignore_dlopen_errors = 1, ignore_missing = 0}
services = <optimized out>
mod_set = <optimized out>
services = <optimized out>
#4  main (argc=<optimized out>, argv=<optimized out>) at main.c:396
c = <optimized out>
On 24.01.2019 18:16, Aki Tuomi wrote:
...
Try
gdb /usr/local/dovecot/libexec/dovecot/auth /var/run/dovecot/core
bt full
Aki
...
On 24 January 2019 at 18:53 Maciej Milaszewski IQ PL <
maciej.milaszewski@iq.pl mailto:maciej.milaszewski@iq.pl> wrote:
Hi
Thenx but maby problem is in ssl or core file and gdb was incorrectly
used
# 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.24 (124e06aa)
# OS: Linux 4.19.0-1-amd64 x86_64 Debian buster/sid
Jan 24 16:56:38 thebe-postfix dovecot: master: Dovecot v2.2.36
(1f10bfa63) starting up for imap, pop3, lmtp, sieve
Jan 24 16:56:39 thebe-postfix dovecot: master: Error: service(auth):
command startup failed, throttling for 2 secs
Jan 24 16:56:39 thebe-postfix dovecot: auth: Fatal: master:
service(auth): child 11078 killed with signal 11 (core dumped)
Jan 24 16:56:39 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
telnet IP 143
..........
Escape character is '^]'.

OK Waiting for authentication process to respond..
BYE Disconnected: Auth process broken
Connection closed by foreign host.

Jan 24 16:56:48 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:56:56 thebe-postfix dovecot: master: Error: service(auth):
command startup failed, throttling for 16 secs
Jan 24 16:56:56 thebe-postfix dovecot: auth: Fatal: master:
service(auth): child 11082 killed with signal 11 (core dumped)
an 24 16:56:56 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:56:56 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:56:56 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:56:56 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:57:07 thebe-postfix dovecot: imap-login: Warning: Auth process
not responding, delayed sending initial response (greeting): user=<>,
rip=46.xxx.xxx.xxx, lip=46.xxx.xxx.xxx, secured,
session=
Jan 24 16:57:12 thebe-postfix dovecot: master: Error: service(auth):
command startup failed, throttling for 32 secs
Jan 24 16:57:12 thebe-postfix dovecot: auth: Fatal: master:
service(auth): child 11084 killed with signal 11 (core dumped)
Jan 24 16:5Core was generated by `dovecot/auth'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fa910394c7a in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt full
#0  0x00007fa910394c7a in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00005604e6f98bc8 in password_scheme_register_crypt () at
password-scheme-crypt.c:144
i = 0
crypted = <optimized out>
#2  0x00005604e6f988dc in password_schemes_init () at
password-scheme.c:875
i = <optimized out>
#3  0x00005604e6f737fb in main_preinit () at main.c:188
mod_set = {abi_version = 0x119a20dc , binary_name = 0x7fa9102c95e0
<_gnutls_log_level> "", setting_name = 0x0,
filter_callback = 0x7fa910241cfb, filter_context =
0x756e654700000004, require_init_funcs = 1, debug = 0,
ignore_dlopen_errors = 1, ignore_missing = 0}
services = <optimized out>
mod_set = <optimized out>
services = <optimized out>
#4  main (argc=<optimized out>, argv=<optimized out>) at main.c:396
c = <optimized out>7:12 thebe-postfix dovecot: director:
Error: Auth server
disconnected unexpectedly
Jan 24 16:57:12 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:57:12 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:57:12 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:57:12 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:57:12 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:57:12 thebe-postfix dovecot: imap-login: Disconnected: Auth
process broken (disconnected before auth was ready, waited 15 secs):
user=<>, rip=46.xxx.xxx.xxx, lip=46.xxx.xxx.xxx, secured,
session=
Jan 24 16:57:12 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
Jan 24 16:57:12 thebe-postfix dovecot: director: Error: Auth server
disconnected unexpectedly
core:
gdb --args /usr/local/dovecot/libexec/dovecot/imap-login
/var/run/dovecot/core
Starting program: /usr/local/dovecot-2.2.36/libexec/dovecot/imap-login
/var/run/dovecot/core
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/lib/x86_64-linux-gnu/libthread_db.so.1".
process 11878 is executing new program:
/usr/local/dovecot-2.2.36/bin/doveconf
process 11878 is executing new program:
/usr/local/dovecot-2.2.36/libexec/dovecot/imap-login
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/lib/x86_64-linux-gnu/libthread_db.so.1".
Fatal: settings_check(ssl) failed: ssl_verify_client_cert set, but
ssl_ca not
[Inferior 1 (process 11878) exited with code 0131]
Fatal: settings_check(ssl) failed: ssl_verify_client_cert set, but
ssl_ca not
If this true why works fine in debian 8.x ?
...
Hi!
Can you get backtrace from the core file?
https://dovecot.org/bugreport.html
Aki
...
On 24 January 2019 at 17:10 Maciej Milaszewski IQ PL <
maciej.milaszewski@iq.pl mailto:maciej.milaszewski@iq.pl mailto:maciej.milaszewski@iq.pl>> wrote:
Hi
Thenx for replay.
Finaly for a test in my lab
I upgrate to latest 2.2.36 and os debian 10
In this machine is dovecot director
But if i tested via telnet
root@postfix:~# telnet 46.xxx.xxx.xxx 143
Trying 46.xxx.xxx.xxx...
Connected to 46.xxx.xxx.xxx.
Escape character is '^]'.

BYE Disconnected: Auth process broken
Connection closed by foreign host.

In log:
Jan 24 16:02:07 postfix dovecot: master: Dovecot v2.2.36 (1f10bfa63)
starting up for imap, pop3, lmtp, sieve
Jan 24 16:02:07 postfix dovecot: master: Error: service(auth):
command
startup failed, throttling for 2 secs
Jan 24 16:02:07 postfix dovecot: auth: Fatal: master: service(auth):
child 10443 killed with signal 11 (core dumped)
Jan 24 16:02:07 postfix dovecot: director: Error: Auth server
disconnected unexpectedly
in strace:
ioctl(3, FIONBIO, [1])                  = 0
setsockopt(3, SOL_SOCKET, SO_OOBINLINE, [1], 4) = 0
select(4, [0 3], [], [3], {tv_sec=0, tv_usec=0}) = 0 (Timeout)
select(4, [0 3], [], [3], NULL)         = 1 (in [3])
recvfrom(3, "* BYE Disconnected: Auth process"..., 8191, 0, NULL,
NULL) = 41
select(4, [0 3], [1], [3], {tv_sec=0, tv_usec=0}) = 2 (in [3], out
[1],
left {tv_sec=0, tv_usec=0})
write(1, "* BYE Disconnected: Auth process"..., 40* BYE Disconnected:
Auth process broken
) = 40
recvfrom(3, "", 8151, 0, NULL, NULL)    = 0
......
ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo
...}) = 0
ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, FIONBIO, [0])                  = 0
ioctl(1, FIONBIO, [0])                  = 0
write(2, "Connection closed by foreign hos"..., 35Connection
closed by
foreign host.
) = 35
close(-1)                               = -1 EBADF (Bad file
descriptor)
exit_group(1)                           = ?
+++ exited with 1 +++
Second machine (backend with dovecot clinet) is old debian (8.11) and
2.2.32 | ( and tested 2.2.36)
telnet 10.0.0.24 143
Trying 10.0.0.24...
Connected to 10.0.0.24.
Escape character is '^]'.

OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE AUTH=PLAIN AUTH=LOGIN] Imap ready.

and works fine
In productions i have debian 8.11 and 9.x all workings fine (this
same
configurations etc)
Where i found solutions  etc ?
On 23.01.2019 08:35, Aki Tuomi via dovecot wrote:
...
Maybe you should try 2.2.36?
Aki
On 22.1.2019 16.47, Maciej Milaszewski IQ PL wrote:
...
Hi
I have little problem with debian10 and dovecot 2.2.33.2
ps -ax
21815 ?        S      0:00 dovecot/pop3-login director
21816 ?        S      0:00 dovecot/pop3-login director
21817 ?        S      0:00 dovecot/pop3-login director
21818 ?        S      0:00 dovecot/pop3-login director
21819 ?        S      0:00 dovecot/pop3-login director
21821 ?        S      0:00 dovecot/pop3-login director
21822 ?        S      0:00 dovecot/pop3-login director
But if I testes via telnet like this:
telnet 46.xxx.xxx.113 143
Trying 46.xxx.xxx.113...
Connected to 46.xxx.xxx.113.
Escape character is '^]'.

OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID
ENABLE
IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Imap ready.
^]
telnet> q
Connection closed.

and ps:
21808 ?        S      0:00 dovecot/imap-login  
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
...
...
...
...
21826 ?        S      0:00 dovecot/imap-login  
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
...
...
...
...
strace:
strace -p 21808
strace: Process 21808 attached
gettimeofday({tv_sec=1548168193, tv_usec=419420}, NULL) = 0
epoll_wait(14,
doveconf:
doveconf -n |head -n 4
# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.8 (0c4ae064f307+)
# OS: Linux 4.19.0-1-amd64 x86_64 Debian buster/sid
auth_cache_negative_ttl = 5 mins
Probably dovecot not closed correctly imap-login and this same for
imap-pop3. Any idea ?

Aki Tuomi

Aki Tuomi
--
Maciej Miłaszewski
IQ PL Sp. z o.o.
Starszy Administrator Systemowy
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