Using dovecot on debian oldstable (squeeze) with daily builded repository,
after an upgrade this morning, dovecot always shows the following error:
2013 Jun 10 11:07:22 mailstore imap(tblomenk): Fatal: master:
service(imap): child 3016 killed with signal 11 (core dumps disabled)
Jun 10 11:07:22 mailstore kernel: [ 1589.400741] imap[3016]: segfault at
7fffd9048ff8 ip 00007f91417e2c3b sp 00007fffd9049000 error 6 in
libdovecot.so.0.0.0[7f9141796000+bc000]
Please notice: I can reproduce the error by trying to access my mailbox
with alpine or mutt, while alpine only can access my inbox. If I try to
access my other folders, the error happens. Mutt always closes the
connection after trying to login. It is a little bit strange because with
a newer client like roundcube I can access all my folders successfully.
In all kernel error messages it seems that
error 6 in libdovecot.so.0.0.0[7f9141796000+bc000]
is always the same.
Also notice that dovecot is still running, it is just that you cannot
access other folders than your inbox with pine.
mailstore:~# dovecot --version
2.2.2 (45399357008a)
mailstore:~# dovecot -n
# 2.2.2 (45399357008a): /etc/dovecot/dovecot.conf
doveconf: Warning: service auth { client_limit=1000 } is lower than
required under max. load (1324)
doveconf: Warning: service anvil { client_limit=1000 } is lower than
required under max. load (1227)
# OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.7
auth_debug = yes
auth_gssapi_hostname = mailstore.math.uni-bielefeld.de
auth_mechanisms = plain login
auth_username_format = %n
auth_verbose = yes
lmtp_save_to_detail_mailbox = yes
log_timestamp = "%Y-%m-%d %H:%M:%S "
login_greeting = Hi, the IMAP Mail-System on
mailstore.math.uni-bielefeld.de is ready.
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c
mail_location = mdbox:~/mdbox
mail_plugins = acl
mail_privileged_group = mail
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags
copy include variables body enotify environment mailbox date ihave
spamtest spamtestplus imapflags notify
namespace {
list = children
location = mdbox:%%h/mdbox
prefix = shared/%%u/
separator = /
subscriptions = no
type = shared
}
namespace inbox {
inbox = yes
location =
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox Spam {
auto = subscribe
special_use = \Junk
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
separator = /
type = private
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf
driver = ldap
}
plugin {
acl = vfile
acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes.db
mail_log_events = delete undelete expunge copy mailbox_delete
mailbox_rename
mail_log_fields = uid box msgid size
mail_log_group_events = no
quota = maildir:User quota
quota_rule = *:storage=0
sieve = ~/.dovecot.sieve
sieve_dir = ~/sieve
sieve_extensions = +imapflags +notify +spamtest +spamtestplus
sieve_spamtest_max_value = 100
sieve_spamtest_status_header = X-PMX-Spam:
\.*Probability=([[:digit:]]+)%+\.*
sieve_spamtest_status_type = score
}
protocols = imap lmtp sieve
service auth {
unix_listener auth-master {
mode = 0600
user = vmail
}
unix_listener auth-userdb {
user = vmail
}
user = root
}
service imap-login {
inet_listener imap {
port = 143
}
inet_listener imaps {
port = 0
}
process_limit = 1024
process_min_avail = 10
service_count = 1
}
service imap {
process_limit = 1024
}
service lmtp {
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0660
user = postfix
}
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
service_count = 1
vsz_limit = 64 M
}
ssl_cert = </etc/dovecot/mailstore_cert_chain.pem
ssl_key = </etc/ssl/private/mcl_key.pem
userdb {
args = uid=vmail gid=vmail home=/var/vmail_san2/dovecot/%1Lu/%Lu
driver = static
}
protocol imap {
mail_plugins = acl imap_acl
}
protocol lmtp {
mail_plugins = acl sieve
}
protocol sieve {
mail_max_userip_connections = 50
managesieve_implementation_string = Dovecot Pigeonhole
managesieve_logout_format = bytes=%i/%o
managesieve_max_compile_errors = 5
managesieve_max_line_length = 65536
}
Regards,
Thomas
