I am having some trouble with a listserver running Exim. Exim is
segfaulting. It is crashing here:
if (rc == DEFER && first_addr->basic_errno != ERRNO_AUTHFAIL
&& first_addr->basic_errno != ERRNO_TLSFAILURE)
write_logs(first_addr, host);
because rc==DEFER and first_addr==NULL. I read prepare_addresses and
it appears that prepare_addresses could return NULL if all the
addresses were PENDING_DEFER. I have no idea whether this is supposed
to be possible.
Can anyone help ?
I'm running Debian's exim4-daemon-light 4.89-2+deb9u3 on amd64.
Please find gdb backtrace and exim -d -M output below.
The problem is a nuisance because these are bouncing list mails which
ought to go back to the mailman bounce handler. But, I think because
of the segfault, they end up becoming frozen and generating lots of
postmaster mail.
Thanks for any help.
Ian.
Program received signal SIGSEGV, Segmentation fault.
0x000055b4b0f6a61b in smtp_transport_entry (tblock=0x55b4b2670748, addrlist=0x55b4b2679e28) at smtp.c:4031
4031 smtp.c: No such file or directory.
(gdb) bt
#0 0x000055b4b0f6a61b in smtp_transport_entry (tblock=0x55b4b2670748, addrlist=0x55b4b2679e28) at smtp.c:4031
#1 0x000055b4b0ef0a0c in do_remote_deliveries (fallback=fallback@entry=0) at deliver.c:4655
#2 0x000055b4b0ef5664 in deliver_message (id=0x7ffc41803e72 "1gmJgS-0002OT-QR", forced=<optimized out>, give_up=<optimized out>)
at deliver.c:7008
#3 0x000055b4b0edd661 in main (argc=<optimized out>, cargv=0x7ffc418037f8) at exim.c:4659
(gdb) print first_addr
$1 = (address_item *) 0x0
(gdb) print rc
$2 = 1
(gdb) print addrlist
$3 = (address_item *) 0x55b4b2679e28
(gdb) print *addrlist
$4 = {next = 0x0, parent = 0x0, first = 0x0, dupof = 0x0, start_router = 0x0, router = 0x55b4b266c4f0, transport = 0x55b4b2670748,
host_list = 0x55b4b267f398, host_used = 0x55b4b267f398, fallback_hosts = 0x0, reply = 0x0, retries = 0x0,
address = 0x55b4b2678388 "***@tiscali.it", unique = 0x55b4b2679fc8 "***@tiscali.it",
cc_local_part = 0x55b4b2679ff0 "***", lc_local_part = 0x55b4b267a000 "***", local_part = 0x55b4b267a000 "***",
prefix = 0x0, suffix = 0x0, domain = 0x55b4b2679fe0 "tiscali.it", address_retry_key = 0x55b4b267a020 "R:***@tiscali.it",
domain_retry_key = 0x55b4b267a010 "R:tiscali.it", current_dir = 0x0, home_dir = 0x0,
message = 0x55b4b267f690 "SMTP error from remote mail server after initial connection: 554 cmgw-2.mail.tiscali.it WcEN1z01n2cE3D401 IP: 192.237.175.120, You are not allowed to send mail. Please see https://app.abusix.ai/delis"..., user_message = 0x0,
onetime_parent = 0x0, pipe_expandn = 0x0, return_filename = 0x0, self_hostname = 0x0, shadow_message = 0x0, cipher = 0x0,
ourcert = 0x0, peercert = 0x0, peerdn = 0x0, ocsp = 0, authenticator = 0x0, auth_id = 0x0, auth_sndr = 0x0, dsn_orcpt = 0x0,
dsn_flags = 0, dsn_aware = 0, uid = 4294967295, gid = 4294967295, flags = 33554432, domain_cache = {15}, localpart_cache = {0},
mode = -1, more_errno = 77, basic_errno = 0, child_count = 0, return_file = -1, special_action = 0, transport_return = 2, prop = {
address_data = 0x0, domain_data = 0x0, localpart_data = 0x0, errors_address = 0x0, extra_headers = 0x0, remove_headers = 0x0}}
(gdb) print addrlist.transport_return
$5 = 2
(gdb)
>>>>>>>>>>>>>>>> Remote deliveries >>>>>>>>>>>>>>>>
--------> ***@tiscali.it <--------
search_tidyup called
set_process_info: 19542 delivering 1gmJgS-0002OT-QR: waiting for a remote delivery subprocess to finish
selecting on subprocess pipes
changed uid/gid: remote delivery to ***@tiscali.it with transport=remote_smtp
uid=102 gid=104 pid=19543
auxiliary group list: <none>
set_process_info: 19543 delivering 1gmJgS-0002OT-QR using remote_smtp
T: remote_smtp for ***@tiscali.it
remote_smtp transport entered
***@tiscali.it
hostlist:
etb-3.mail.tiscali.it:-1
etb-3.mail.tiscali.it:-1
etb-3.mail.tiscali.it:-1
etb-3.mail.tiscali.it:-1
imp-5.mail.tiscali.it:-1
checking status of etb-3.mail.tiscali.it
locking /var/spool/exim4/db/retry.lockfile
locked /var/spool/exim4/db/retry.lockfile
EXIM_DBOPEN(/var/spool/exim4/db/retry)
returned from EXIM_DBOPEN
opened hints database /var/spool/exim4/db/retry: flags=O_RDONLY
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.63
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.63:1gmJgS-0002OT-QR
closed hints database and lockfile
no host retry record
no message retry record
etb-3.mail.tiscali.it [213.205.33.63] status = usable
213.205.33.63 in serialize_hosts? no (option unset)
delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.63] (***@tiscali.it)
set_process_info: 19543 delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.63] (***@tiscali.it)
Connecting to etb-3.mail.tiscali.it [213.205.33.63]:25 ... 213.205.33.63 in hosts_try_fastopen? no (option unset)
connected
read response data: size=171
SMTP<< 554 cmgw-2.mail.tiscali.it WcEN1z01n2cE3D401 IP: 192.237.175.120, You are not allowed to send mail. Please see
https://app.abusix.ai/delist You are listed in Abusix RBL
SMTP>> QUIT
cmd buf flush 6 bytes
SMTP(close)>>
set_process_info: 19543 delivering 1gmJgS-0002OT-QR: just tried etb-3.mail.tiscali.it [213.205.33.63] for ***@tiscali.it: result ?
checking status of etb-3.mail.tiscali.it
locking /var/spool/exim4/db/retry.lockfile
locked /var/spool/exim4/db/retry.lockfile
EXIM_DBOPEN(/var/spool/exim4/db/retry)
returned from EXIM_DBOPEN
opened hints database /var/spool/exim4/db/retry: flags=O_RDONLY
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.61
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.61:1gmJgS-0002OT-QR
closed hints database and lockfile
no host retry record
no message retry record
etb-3.mail.tiscali.it [213.205.33.61] status = usable
213.205.33.61 in serialize_hosts? no (option unset)
delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.61] (***@tiscali.it)
set_process_info: 19543 delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.61] (***@tiscali.it)
Connecting to etb-3.mail.tiscali.it [213.205.33.61]:25 ... 213.205.33.61 in hosts_try_fastopen? no (option unset)
connected
read response data: size=171
SMTP<< 554 cmgw-1.mail.tiscali.it WcEe1z00Z2cE3D401 IP: 192.237.175.120, You are not allowed to send mail. Please see
https://app.abusix.ai/delist You are listed in Abusix RBL
SMTP>> QUIT
cmd buf flush 6 bytes
SMTP(close)>>
set_process_info: 19543 delivering 1gmJgS-0002OT-QR: just tried etb-3.mail.tiscali.it [213.205.33.61] for ***@tiscali.it: result ?
checking status of etb-3.mail.tiscali.it
locking /var/spool/exim4/db/retry.lockfile
locked /var/spool/exim4/db/retry.lockfile
EXIM_DBOPEN(/var/spool/exim4/db/retry)
returned from EXIM_DBOPEN
opened hints database /var/spool/exim4/db/retry: flags=O_RDONLY
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.62
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.62:1gmJgS-0002OT-QR
closed hints database and lockfile
no host retry record
no message retry record
etb-3.mail.tiscali.it [213.205.33.62] status = usable
213.205.33.62 in serialize_hosts? no (option unset)
delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.62] (***@tiscali.it)
set_process_info: 19543 delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.62] (***@tiscali.it)
Connecting to etb-3.mail.tiscali.it [213.205.33.62]:25 ... 213.205.33.62 in hosts_try_fastopen? no (option unset)
connected
read response data: size=171
SMTP<< 554 cmgw-2.mail.tiscali.it WcEs1z01j2cE3D401 IP: 192.237.175.120, You are not allowed to send mail. Please see
https://app.abusix.ai/delist You are listed in Abusix RBL
SMTP>> QUIT
cmd buf flush 6 bytes
SMTP(close)>>
set_process_info: 19543 delivering 1gmJgS-0002OT-QR: just tried etb-3.mail.tiscali.it [213.205.33.62] for ***@tiscali.it: result ?
checking status of etb-3.mail.tiscali.it
locking /var/spool/exim4/db/retry.lockfile
locked /var/spool/exim4/db/retry.lockfile
EXIM_DBOPEN(/var/spool/exim4/db/retry)
returned from EXIM_DBOPEN
opened hints database /var/spool/exim4/db/retry: flags=O_RDONLY
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.64
dbfn_read: key=T:etb-3.mail.tiscali.it:213.205.33.64:1gmJgS-0002OT-QR
closed hints database and lockfile
no host retry record
no message retry record
etb-3.mail.tiscali.it [213.205.33.64] status = usable
213.205.33.64 in serialize_hosts? no (option unset)
delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.64] (***@tiscali.it)
set_process_info: 19543 delivering 1gmJgS-0002OT-QR to etb-3.mail.tiscali.it [213.205.33.64] (***@tiscali.it)
Connecting to etb-3.mail.tiscali.it [213.205.33.64]:25 ... 213.205.33.64 in hosts_try_fastopen? no (option unset)
connected
read response data: size=171
SMTP<< 554 cmgw-2.mail.tiscali.it WcF61z03S2cE3D401 IP: 192.237.175.120, You are not allowed to send mail. Please see
https://app.abusix.ai/delist You are listed in Abusix RBL
SMTP>> QUIT
cmd buf flush 6 bytes
SMTP(close)>>
set_process_info: 19543 delivering 1gmJgS-0002OT-QR: just tried etb-3.mail.tiscali.it [213.205.33.64] for ***@tiscali.it: result ?
checking status of imp-5.mail.tiscali.it
locking /var/spool/exim4/db/retry.lockfile
locked /var/spool/exim4/db/retry.lockfile
EXIM_DBOPEN(/var/spool/exim4/db/retry)
returned from EXIM_DBOPEN
opened hints database /var/spool/exim4/db/retry: flags=O_RDONLY
dbfn_read: key=T:imp-5.mail.tiscali.it:213.205.33.244
dbfn_read: key=T:imp-5.mail.tiscali.it:213.205.33.244:1gmJgS-0002OT-QR
closed hints database and lockfile
no host retry record
no message retry record
imp-5.mail.tiscali.it [213.205.33.244] status = usable
213.205.33.244 in serialize_hosts? no (option unset)
delivering 1gmJgS-0002OT-QR to imp-5.mail.tiscali.it [213.205.33.244] (***@tiscali.it)
set_process_info: 19543 delivering 1gmJgS-0002OT-QR to imp-5.mail.tiscali.it [213.205.33.244] (***@tiscali.it)
hosts_max_try limit reached with this host
Connecting to imp-5.mail.tiscali.it [213.205.33.244]:25 ... 213.205.33.244 in hosts_try_fastopen? no (option unset)
connected
selecting on subprocess pipes
read response data: size=33
SMTP<< 421 4.2.1 Service not available
SMTP>> QUIT
cmd buf flush 6 bytes
SMTP(close)>>
--
Ian Jackson <ijackson@???> These opinions are my own.
If I emailed you from an address @fyvzl.net or @evade.org.uk, that is
a private address which bypasses my fierce spamfilter.
