Tracking down signaled to death by 11 errors

Tue Jun 1 09:03:55 EDT 2004

After the upgrade to Cyrus IMAP 2.2.5 (SASL 2.1.18), I've been seeing a 
lot of these errors in the logs:

Jun  1 08:42:19 cyrus master[21185]: [ID 970914 local6.error] process 
21886 exited, signaled to death by 11
Jun  1 08:43:26 cyrus master[21185]: [ID 970914 local6.error] process 
20660 exited, signaled to death by 11
Jun  1 08:43:43 cyrus master[21185]: [ID 970914 local6.error] process 
20133 exited, signaled to death by 11
Jun  1 08:47:02 cyrus master[21185]: [ID 970914 local6.error] process 
23236 exited, signaled to death by 11
Jun  1 08:47:20 cyrus master[21185]: [ID 970914 local6.error] process 
23972 exited, signaled to death by 11
Jun  1 08:47:58 cyrus master[21185]: [ID 970914 local6.error] process 
23751 exited, signaled to death by 11
Jun  1 08:48:05 cyrus master[21185]: [ID 970914 local6.error] process 
21258 exited, signaled to death by 11
Jun  1 08:49:53 cyrus master[21185]: [ID 970914 local6.error] process 
19939 exited, signaled to death by 11
Jun  1 08:51:27 cyrus master[21185]: [ID 970914 local6.error] process 
24807 exited, signaled to death by 11
Jun  1 08:51:37 cyrus master[21185]: [ID 970914 local6.error] process 
23457 exited, signaled to death by 11

I grepped for the process id's that exited in the log file and see that 
they are all imapd processes from various users.  I've been 
reconstructing their mailboxes hoping that was the cause, but I was 
wondering if there is a way to get a better trace of what is happening.  
It seems hard to get an strace or truss on the imap process since you 
don't know which one will die.  Is there any technique to watching these 
processes?   Is there anything else I should be looking for?  Below is 
the configure commands I used to build imap and sasl.  I used gcc 3.3.2 
on Solaris SPARC 9.

Thanks in advance for any advice,

  -Shawn Sivy
   The College of New Jersey

For Imap 2.2.5
-------------------
CC=gcc \
CPPFLAGS="-I/local/BerkeleyDB-4.2.52/include -I/local/cyrus/include" \
LDFLAGS="-L/local/BerkeleyDB-4.2.52/lib -R/local/BerkeleyDB-4.2.52/lib" \
LIBS="-lsocket -lnsl" \
./configure \
--prefix=/local/cyrus \
--with-cyrus-prefix=/local/cyrus \
--with-cyrus-user=cyrus \
--with-cyrus-group=mail \
--with-auth=unix \
--enable-netscapehack \
--with-perl=/local/perl/bin/perl \
--enable-murder \
--with-libwrap=/usr/sfw \
--with-openssl=/local/openssl-0.9.7d \
--with-dbdir=/local/BerkeleyDB-4.2.52 \
--with-sasl=/local/sasl2

For Sasl 2.1.18
-------------------
CC=gcc \
LDFLAGS="-L/local/Berkeley-4.2.52/lib -R/local/Berkeley-4.2.52/lib" \
CPPFLAGS="-I/local/Berkeley-4.2.52/include" \
LIBS="-lsocket -lnsl" \
./configure --prefix=/local/sasl2 \
--with-pwcheck \
--with-pam \
--enable-plain \
--enable-login \
--disable-gssapi \
--disable-otp \
--disable-digest \
--disable-cram \
--with-ldap=/local/openldap-2.1.30 \
--with-openssl=/local/openssl-0.9.7d

Here's my /etc/cyrus.conf
----------------------------------
# standard standalone server implementation

START {
  # do not delete this entry!
  recover       cmd="ctl_cyrusdb -r"

  # this is only necessary if using idled for IMAP IDLE
#  idled                cmd="idled"
}

# UNIX sockets start with a slash and are put into /var/imap/socket
SERVICES {
  # add or remove based on preferences
  imap          cmd="imapd" listen="imap" prefork=20
  imaps         cmd="imapd -s" listen="imaps" prefork=5
  pop3          cmd="pop3d" listen="pop3" prefork=0
  pop3s         cmd="pop3d" -s" listen="pop3s" prefork=0
  sieve         cmd="timsieved" listen="sieve" prefork=1

  # at least one LMTP is required for delivery
#  lmtp         cmd="lmtpd" listen="lmtp" prefork=0
  lmtpunix      cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=0

  # this is only necessary if using notifications
#  notify       cmd="notifyd" listen="/var/imap/socket/notify" 
proto="udp" prefork=1
}

EVENTS {
  # this is required
  checkpoint    cmd="ctl_cyrusdb -c" period=30

  # this is only necessary if using duplicate delivery suppression
  delprune      cmd="ctl_deliver -E 3" at=0400

  # this is only necessary if caching TLS sessions
  tlsprune      cmd="tls_prune" at=0400
}

And my imapd.conf
--------------------------
configdirectory: /var/imap
partition-default: /var/spool/imap
partition-imap2: /var/spool/imap2
partition-imap3: /var/spool/imap3
defaultpartition: default
admins: cyrus
#sasl_pwcheck_method: pwcheck
#pwcheck_method: pwcheck
sasl_pwcheck_method: saslauthd
pwcheck_method: saslauthd
sasl_ldap_servers: ldap://159.91.15.182/ ldap://159.91.15.179/
sasl_ldap_filter: uid=%u
sasl_ldap_auth_method: bind
sasl_ldap_search_base: ou=People,dc=tcnj,dc=edu
sasl_ldap_scope: one
ldap_uri: ldap://159.91.15.182/ ldap://159.91.15.179/
ldap_filter: uid=%u
ldap_auth_method: bind
ldap_search_base: ou=People,dc=tcnj,dc=edu
ldap_scope: one
netscapeurl: http://managemail.tcnj.edu/
tls_ca_file: /var/imap/ssl/ca-bundle.crt
tls_cert_file: /var/imap/ssl/imap2003.pem
tls_key_file: /var/imap/ssl/imap2003.pem
sievedir: /var/imap/sieve
# Modified 11/17/02 - BC - 35 is just over the base setting. Base is 
unknown.
# Modified 3/18/03 - BC - Changed to 50 - see man page for imapd.conf
#sieve_maxscriptsize: 32
#            Maximum size (in kilobytes) any sieve script can  be,
#            enforced at submission by timsieved(8).
sieve_maxscriptsize: 50
quotawarn: 90
lmtp_over_quota_perm_failure: 1
quota_db: quotalegacy

---
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