New subject: [Dovecot] Panic: file buffer.c: assertion failed: (used_size <= buf->alloc)

12 Dec 2013


      Hi,
We have a crash in dovecot 2.2.7
2013-12-11 10:38:44 imap(xxx@example.com): Panic: file buffer.c: line 307
(buffer_set_used_size): assertion failed: (used_size <= buf->alloc)
2013-12-11 10:38:44 imap(xxx@example.com): Error: Raw backtrace: /opt/dovecot-
2.2.7/lib/dovecot/libdovecot.so.0(+0x672a2) [0x7f576b9742a2] -> /opt/dovecot-
2.2.7/lib/dovecot/libdovecot.so.0(+0x67306) [0x7f576b974306] -> /opt/dovecot-
2.2.7/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f576b92eb4f] -> /opt/dovecot-
2.2.7/lib/dovecot/libdovecot.so.0(+0x62d89) [0x7f576b96fd89] -> /opt/dovecot-
2.2.7/lib/dovecot/libdovecot-storage.so.0(mail_transaction_log_file_open+0x228)
[0x7f576bc85488] -> /opt/dovecot-2.2.7/lib/dovecot/libdovecot-storage.so.0
(mail_transaction_log_open+0xba) [0x7f576bc8229a] -> /opt/dovecot-2.2.7
/lib/dovecot/libdovecot-storage.so.0(+0x8dc94) [0x7f576bc69c94] -> /opt/dovecot-
2.2.7/lib/dovecot/libdovecot-storage.so.0(mail_index_open+0xf0)
[0x7f576bc69ee0] -> /opt/dovecot-2.2.7/lib/dovecot/libdovecot-storage.so.0
(index_storage_mailbox_open+0xad) [0x7f576bc5d0dd] -> /opt/dovecot-2.2.7
/lib/dovecot/libdovecot-storage.so.0(+0x4432a) [0x7f576bc2032a] -> /opt/dovecot-
2.2.7/lib/dovecot/libdovecot-storage.so.0(+0x443ff) [0x7f576bc203ff] ->
/opt/dovecot-2.2.7/lib/dovecot/libdovecot-storage.so.0(+0x564e4)
[0x7f576bc324e4] -> /opt/dovecot-2.2.7/lib/dovecot/libdovecot-storage.so.0
(mailbox_open+0xf) [0x7f576bc3269f] -> /opt/dovecot-2.2.7
/lib/dovecot/libdovecot-storage.so.0(mailbox_delete+0x1d) [0x7f576bc3287d] ->
dovecot/imap(cmd_delete+0xb4) [0x40cc24] -> dovecot/imap(command_exec+0x3d)
[0x416d0d] -> dovecot/imap() [0x415e30] -> dovecot/imap() [0x415f1d] ->
dovecot/imap(client_handle_input+0x11d) [0x41619d] -> dovecot/imap
(client_input+0x6f) [0x41650f] -> /opt/dovecot-2.2.7/lib/dovecot/libdovecot.so.0
(io_loop_call_io+0x36) [0x7f576b983b96] -> /opt/dovecot-2.2.7
/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xa7) [0x7f576b984bf7] ->
/opt/dovecot-2.2.7/lib/dovecot/libdovecot.so.0(io_loop_run+0x38)
[0x7f576b983b08] -> /opt/dovecot-2.2.7/lib/dovecot/libdovecot.so.0
(master_service_run+0x13) [0x7f576b9338f3] -> dovecot/imap(main+0x2a7)
[0x41fa27] -> /lib64/libc.so.6(__libc_start_main+0xfd) [0x7f576b598cdd] ->
dovecot/imap() [0x40ab79]
2013-12-11 10:38:44 imap(xx@example.com): Fatal: master: service(imap): child
6214 killed with signal 6 (core dumped)
We use CentOS 6.4:
# cat /etc/issue
CentOS release 6.4 (Final)
The output of dovecot -n:
# 2.2.7: /opt/dovecot-2.2.7/etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-358.23.2.el6.x86_64 x86_64 CentOS release 6.4 (Final)
auth_debug = yes
auth_master_user_separator = *
auth_username_format =
disable_plaintext_auth = no
dotlock_use_excl = no
first_valid_gid = 101
first_valid_uid = 102
imap_id_send =
import_environment = TZ
info_log_path = /var/log/dovecot.log
log_path = /var/log/dovecot.log
log_timestamp = "%Y-%m-%d %H:%M:%S "
mail_fsync = always
mail_gid = 101
mail_location = maildir:%h/Maildir
mail_nfs_index = yes
mail_nfs_storage = yes
mail_plugins = quota expire fts fts_lucene
mail_uid = 102
maildir_broken_filename_sizes = 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 ihave
mbox_write_locks = fcntl
mmap_disable = yes
namespace inbox {
inbox = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix = INBOX.
separator = .
subscriptions = yes
type = private
}
passdb {
args = /opt/dovecot-2.2.7/etc/dovecot/passwd.masterusers
driver = passwd-file
master = yes
}
passdb {
args = /opt/dovecot-2.2.7/etc/dovecot/dovecot-ldap.conf
driver = ldap
}
passdb {
args = /opt/dovecot-2.2.7/etc/dovecot/dovecot-ldap-multiuser.conf
driver = ldap
master = yes
}
plugin {
fts = lucene
fts_lucene =
quota = maildir
quota_rule2 = INBOX.Trash:storage=+100M
}
protocols = imap pop3
service anvil {
client_limit = 3000
}
service auth {
client_limit = 4096
unix_listener auth-userdb {
mode = 0600
}
}
service imap-login {
inet_listener imap {
address = xxx.xxx.xxx.xxx
port = 143
}
inet_listener imaps {
address = xxx.xxx.xxx.xxx
port = 993
ssl = yes
}
process_limit = 2500
process_min_avail = 5
}
service imap {
drop_priv_before_exec = yes
process_limit = 2500
process_min_avail = 5
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
process_min_avail = 0
service_count = 1
vsz_limit = 64 M
}
service managesieve {
drop_priv_before_exec = yes
process_limit = 1024
}
service pop3-login {
inet_listener pop3 {
address = xxx.xxx.xxx.xxx
port = 110
}
inet_listener pop3s {
address = xxx.xxx.xxx.xxx
port = 995
ssl = yes
}
process_limit = 300
process_min_avail = 5
}
service pop3 {
drop_priv_before_exec = yes
process_limit = 300
process_min_avail = 5
}
ssl_cert = 
Thanks

[Dovecot] Panic: file buffer.c: assertion failed: (used_size <= buf->alloc)

giom87＠libero.it

Robert Schetterer

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