Re: auth-worker: Error: double free or corruption (fasttop)

27 Jan 2019


      Hi,
Sorry fo my late answer. The hole disty are stripped. I must first
rebuild all with debug symbols.
Here comes the complete gdb backtrace:
(gdb) bt full
#0  0x00007f49738486f7 in raise () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f497384a091 in abort () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007f497389220f in __libc_message () from /lib64/libc.so.6
No symbol table info available.
#3  0x00007f4973899b5a in malloc_printerr () from /lib64/libc.so.6
No symbol table info available.
#4  0x00007f497389fcb4 in free () from /lib64/libc.so.6
No symbol table info available.
#5  0x00007f4974e2c7bd in mysql_close (mysql=0x55c7d97dd860) at
/usr/src/mariadb-10.3.11/libmariadb/libmariadb/mariadb_lib.c:1939
No locals.
#6  0x000055c7d7b15f4c in driver_sqlpool_disconnect (_db=0x55c7d97dca10)
at driver-sqlpool.c:590
conn__foreach_end = 0x55c7d97dd010
db = 0x55c7d97dca10
conn = 0x55c7d97dd000
#7  0x000055c7d7b07cd5 in db_sql_unref (_conn=0x55c7d97d4678) at
db-sql.c:128
conn = 0x55c7d97dbe28
#8  0x000055c7d7afefa9 in userdb_deinit (userdb=0x55c7d97d4650) at
userdb.c:191
idx = 0
__func__ = "userdb_deinit"
#9  0x000055c7d7ae31a9 in auth_deinit (auth=0x55c7d97d4f40) at
auth.c:335
passdb = <optimized out>
userdb = 0x55c7d97d5068
passdb = <optimized out>
userdb = <optimized out>
#10 auths_deinit () at auth.c:433
auth__foreach_end = 0x55c7d97dbda0
auth = 0x55c7d97dbd98
#11 0x000055c7d7ae1d73 in main_deinit () at main.c:271
l = <optimized out>
l = <optimized out>
l_end = <optimized out>
#12 main (argc=<optimized out>, argv=<optimized out>) at main.c:398
c = <optimized out>
(gdb)
Hope it helps...
Regards,
Marcel
Am 20.1.2019 12:51, schrieb Stephan Bosch:
...
Op 16/01/2019 om 12:35 schreef Marcel Lorenz:
...
Dear list,
since the distri upgrade to glibc 2.28, i can't build working dovecot
binary's.
Older with glibc 2.27 are working. The distri is LFS based.
MariaDB 10.2.18 and 10.3.11 makes no difference. Having this on
different systems.
Messages Log:
Dec 19 17:10:38 test kernel: traps: auth[30189] general protection
ip:7f4b96d6598c sp:7ffef1f31710 error:0 in
libmariadb.so.3[7f4b96d4e000+67000]
Dec 19 17:11:39 test kernel: auth[30299]: segfault at 560c57366c40 ip
0000560c57366c40 sp 00007fffe5b51f18 error 15
Dec 19 17:12:39 test kernel: traps: auth[30346] general protection
ip:7f55601f298c sp:7ffe597929c0 error:0 in
libmariadb.so.3[7f55601db000+67000]
Dec 19 17:13:39 test kernel: traps: auth[30392] general protection
ip:7fcd2317298c sp:7ffecd6f4cb0 error:0 in
libmariadb.so.3[7fcd2315b000+67000]
Dovecot log:
2018-12-19 17:07:37 auth-worker: Fatal: master: service(auth-worker):
child 30053 killed with signal 11 (core dumped)
2018-12-19 17:09:38 auth-worker: Error: double free or corruption
(fasttop)
2018-12-19 17:09:38 auth-worker: Fatal: master: service(auth-worker):
child 30098 killed with signal 6 (core dumped)
2018-12-19 17:10:38 auth-worker: Fatal: master: service(auth-worker):
child 30189 killed with signal 11 (core dumped)
It says "core dumped". Can you obtain a gdb backtrace from those?
https://www.dovecot.org/bugreport.html
Regards,
Stephan.
...
Output of dovecot -n:
# 2.3.4 (0ecbaf23d): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.4 (60b0f48d)
# OS: Linux 4.14.80 x86_64
# Hostname: test.testing.local
auth_mechanisms = plain login
auth_username_chars =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@+*#"
base_dir = /var/run/dovecot/
debug_log_path = /var/log/dovecot/debug.log
dict {
expire = mysql:/etc/dovecot/dovecot-dict-sql-expire.conf
sqldomainquota = mysql:/etc/dovecot/dovecot-dict-sql-domain.conf
sqluserquota = mysql:/etc/dovecot/dovecot-dict-sql-user.conf
}
info_log_path = /var/log/dovecot/info.log
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
listen = *
log_path = /var/log/dovecot/main.log
log_timestamp = "%Y-%m-%d %H:%M:%S "
login_greeting = dovecot ready
login_log_format = %s
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e
%c %k
mail_location = mdbox:/var/vmail/%d/%n/
mail_max_userip_connections = 4
mail_plugins = " zlib quota expire acl fts fts_lucene"
mailbox_idle_check_interval = 1 mins
maildir_very_dirty_syncs = yes
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 index ihave duplicate mime foreverypart
extracttext
namespace {
list = children
location = maildir:/var/vmail/%d/public:INDEXPVT=/var/vmail/%d/public
prefix = Public.
separator = .
subscriptions = no
type = public
}
namespace {
list = children
location =
maildir:/var/vmail/%d/%%u:CONTROL=/var/vmail/%d/shared/%%u:INDEX=/var/vmail/$
prefix = shared.%%n.
separator = .
subscriptions = yes
type = shared
}
namespace inbox {
inbox = yes
location =
mailbox Archive {
auto = subscribe
special_use = \Archive
}
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Junk {
auto = subscribe
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
separator = .
}
passdb {
args = /etc/dovecot/dovecot-sql.conf
driver = sql
}
plugin {
acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes
al = vfile
expire = Trash
expire2 = Trash/*
expire3 = Spam
expire_cache = yes
expire_dict = proxy::expire
fts = lucene
fts_lucene = whitespace_chars=@.-+_*:/\"'
last_login_key = # hidden, use -P to show it
quota = dict:User Quota::proxy::sqluserquota
quota_exceeded_message = Quota exceeded
quota_grace = 10%%
quota_rule2 = Trash:storage=+15%%
quota_rule3 = Spam:ignore
quota_status_nouser = DUNNO
quota_status_overquota = 552 5.2.2 Mailbox is over quota / Postfach
ist voll
quota_status_success = DUNNO
quota_warning = storage=95%% quota-warning 95 %u
quota_warning2 = storage=80%% quota-warning 80 %u
sieve = /var/vmail/%d/%n/sieve/active-script.sieve
sieve_before = /var/vmail/sieve/spam-global.sieve
sieve_dir = /var/vmail/%d/%n/sieve/scripts/
sieve_global = /var/lib/dovecot/sieve/global/
sieve_max_actions = 32
sieve_max_redirects = 4
sieve_max_script_size = 1M
trash = /etc/dovecot/dovecot-trash.conf
zlib_save = gz
zlib_save_level = 6
}
postmaster_address = postmaster@testing.local
protocols = imap pop3 lmtp sieve
service auth-worker {
user = doveauth
}
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
unix_listener auth-userdb {
mode = 0660
user = doveauth
}
}
service dict {
unix_listener dict {
mode = 0600
user = vmail
}
}
service imap-login {
inet_listener imap {
port = 143
}
inet_listener imaps {
port = 993
ssl = yes
}
process_min_avail = 0
}
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
}
service pop3-login {
inet_listener pop3 {
port = 110
}
inet_listener pop3s {
port = 995
ssl = yes
}
}
service quota-status {
client_limit = 1
executable = quota-status -p postfix
inet_listener {
port = 10022
}
}
service quota-warning {
executable = script /usr/local/bin/quota-warning.sh
user = vmail
}
ssl_alt_cert = </etc/ssl/certs/postfix-rsa.crt
ssl_alt_key = # hidden, use -P to show it
ssl_cert = </etc/ssl/certs/postfix-ecc.crt
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
ssl_min_protocol = TLSv1.2
ssl_prefer_server_ciphers = yes
userdb {
args = /etc/dovecot/dovecot-sql.conf
driver = sql
}
verbose_proctitle = yes
protocol imap {
imap_logout_format = in=%i out=%o
imap_max_line_length = 64 k
mail_max_userip_connections = 10
mail_plugins = " zlib quota expire acl fts fts_lucene acl imap_acl
imap_quota mail_log last_login notify imap_zlib trash"
}
protocol pop3 {
mail_max_userip_connections = 4
mail_plugins = " zlib quota expire acl fts fts_lucene last_login
expire"
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
pop3_enable_last = no
pop3_lock_session = no
pop3_logout_format = retr=%r/%b, del=%d/%m, size=%s
pop3_no_flag_updates = yes
pop3_reuse_xuidl = no
pop3_save_uidl = yes
pop3_uidl_format = %08Xu%08Xv
}
protocol lmtp {
mail_plugins = " zlib quota expire acl fts fts_lucene sieve"
postmaster_address = postmaster@test.local
}
protocol lda {
auth_socket_path = /var/run/dovecot/auth-master
info_log_path = /var/log/dovecot/deliver.log
log_path = /var/log/dovecot/deliver.log
mail_fsync = optimized
mail_plugins = " zlib quota expire acl fts fts_lucene trash autocreate
sieve"
postmaster_address = postmaster@testing.local
quota_full_tempfail = yes
rejection_reason = Your message to <%t> with subject of <%s> was
automatically rejected:%n%r
rejection_subject = Mailbox Full: %s
}
protocol sieve {
mail_max_userip_connections = 10
managesieve_implementation_string = Dovecot Pigeonhole
managesieve_logout_format = bytes=%i/%o
managesieve_max_compile_errors = 5
managesieve_max_line_length = 65536
}
Thanks in advance!
Marcel