Adam McDougall
2008-Feb-20 12:02 UTC
[Dovecot] dovecot: child 53439 (imap) killed with signal 11
For quite some time I have seen dovecot imap exit with a sig11 without
any other error message,
but usually with the frequency of between once per week and once per day
(per server). A few weeks
ago I finally enabled core dumping with debug symbols and it seemed to
happen less often. I finally
caught a coredump that wasn't overwritten. I have no idea what on the
client end may cause it, it has
happened to myself too.
dovecot 1.11b16
FreeBSD 6.3
amd64
Maildir on NFS
# 1.1.beta16: /usr/local/etc/dovecot.conf
ssl_cert_file: /usr/local/etc/apache22/ssl/mail.pem
ssl_key_file: /usr/local/etc/apache22/ssl/mail.pem
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
mail_max_userip_connections: 25
verbose_proctitle: yes
first_valid_uid: 1000
first_valid_gid: 1000
mail_extra_groups: postlocal
mail_location:
maildir:%h/Maildir:CONTROL=%h/Maildir/dovecot/private/control:INDEX=%h/Maildir/dovecot/private/indexes
mmap_disable: yes
mail_nfs_storage: yes
mail_nfs_index: yes
mail_drop_priv_before_exec: yes
mail_plugins: acl fts fts_squat
mail_log_max_lines_per_sec: 0
imap_client_workarounds: delay-newmail netscape-eoh tb-extra-mailbox-sep
namespace:
type: private
separator: /
inbox: yes
list: yes
subscriptions: yes
namespace:
type: private
separator: /
prefix: mail/
hidden: yes
subscriptions: yes
namespace:
type: private
separator: /
prefix: Mail/
hidden: yes
subscriptions: yes
namespace:
type: public
separator: /
prefix: #shared/decs/
location:
maildir:/egr/mail/shared/decs:CONTROL=%h/Maildir/dovecot/public/control/decs:INDEX=%h/Maildir/dovecot/public/indexes/decs
list: yes
subscriptions: yes
auth default:
passdb:
driver: pam
userdb:
driver: passwd
args: system_user socket:
type: listen
client:
path: /var/spool/postfix/private/auth
mode: 384
user: postfix
group: postfix
plugin:
acl: vfile:/usr/local/etc/dovecot-acls:cache_secs=10
fts: squat
# gdb /usr/local/libexec/dovecot/imap imap.53439.hill.core
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "amd64-marcel-freebsd"...
Core was generated by `imap'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/local/lib/libiconv.so.3...done.
Loaded symbols for /usr/local/lib/libiconv.so.3
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /usr/local/lib/dovecot/imap/lib01_acl_plugin.so...done.
Loaded symbols for /usr/local/lib/dovecot/imap/lib01_acl_plugin.so
Reading symbols from /usr/local/lib/dovecot/imap/lib20_fts_plugin.so...done.
Loaded symbols for /usr/local/lib/dovecot/imap/lib20_fts_plugin.so
Reading symbols from
/usr/local/lib/dovecot/imap/lib21_fts_squat_plugin.so...done.
Loaded symbols for /usr/local/lib/dovecot/imap/lib21_fts_squat_plugin.so
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0 0x0000000000435edd in maildir_uidlist_iter_next_rec (ctx=0x647120,
rec_r=0x7fffffffdeb0) at maildir-uidlist.c:1522
1522 maildir-uidlist.c: No such file or directory.
in maildir-uidlist.c
#0 0x0000000000435edd in maildir_uidlist_iter_next_rec (ctx=0x647120,
rec_r=0x7fffffffdeb0) at maildir-uidlist.c:1522
rec = (struct maildir_uidlist_rec *) 0x0
__PRETTY_FUNCTION__ = "maildir_uidlist_iter_next_rec"
#1 0x000000000043461a in maildir_uidlist_write_fd (uidlist=0x64a000, fd=9,
path=0x612a80
"/home/batesst/Maildir/dovecot/private/control/.INBOX/dovecot-uidlist",
first_idx=56,
file_size_r=0x7fffffffdf30) at maildir-uidlist.c:936
storage = (struct mail_storage *) 0x60a848
iter = (struct maildir_uidlist_iter_ctx *) 0x647120
output = (struct ostream *) 0x64a268
rec = (struct maildir_uidlist_rec *) 0x0
str = (string_t *) 0x602060
p = (const unsigned char *) 0x7fffffffdee0 "\200*a"
len = 0
ret = 6295912
__PRETTY_FUNCTION__ = "maildir_uidlist_write_fd"
#2 0x0000000000434ce4 in maildir_uidlist_sync_update (ctx=0x665040) at
maildir-uidlist.c:1095
uidlist = (struct maildir_uidlist *) 0x64a000
file_size = 227633266741
__PRETTY_FUNCTION__ = "maildir_uidlist_sync_update"
#3 0x0000000000435b9f in maildir_uidlist_sync_deinit (_ctx=0x601198) at
maildir-uidlist.c:1448
_data_stack_cur_id = 5
ctx = (struct maildir_uidlist_sync_ctx *) 0x665040
ret = 0
__PRETTY_FUNCTION__ = "maildir_uidlist_sync_deinit"
#4 0x0000000000430bab in maildir_sync_context (ctx=0x601168,
forced=false, find_uid=0x0, lost_files_r=0x7fffffffdfef)
at maildir-sync.c:836
sync_flags = MAILDIR_UIDLIST_SYNC_PARTIAL
flags = 4294959056
new_changed = true
cur_changed = false
ret = 1
__PRETTY_FUNCTION__ = "maildir_sync_context"
#5 0x0000000000430d11 in maildir_storage_sync_init (box=0x63e048,
flags=65) at maildir-sync.c:881
_data_stack_cur_id = 4
mbox = (struct maildir_mailbox *) 0x63e048
ctx = (struct maildir_sync_context *) 0x601168
lost_files = false
ret = 0
__PRETTY_FUNCTION__ = "maildir_storage_sync_init"
#6 0x000000000046b890 in mailbox_sync_init (box=0x63e048, flags=65) at
mail-storage.c:509
No locals.
#7 0x000000000046b949 in mailbox_sync (box=0x63e048, flags=65,
status_items=111, status_r=0x7fffffffe0a0)
at mail-storage.c:539
ctx = (struct mailbox_sync_context *) 0x60a848
sync_rec = {seq1 = 4294959216, seq2 = 0, type = 6545480}
#8 0x0000000000419627 in cmd_select_full (cmd=0x61e048, readonly=false)
at cmd-select.c:39
client = (struct client *) 0x60d200
storage = (struct mail_storage *) 0x60a848
box = (struct mailbox *) 0x63e048
status = {messages = 4294959328, recent = 32767, unseen =
6343088, uidvalidity = 0, uidnext = 24,
first_unseen_seq = 0, keywords = 0x41ca28}
mailbox = 0x4cea7b "INBOX"
#9 0x000000000041978a in cmd_select (cmd=0x61e048) at cmd-select.c:87
No locals.
#10 0x000000000041bf72 in client_command_input (cmd=0x61e048) at
client.c:546
client = (struct client *) 0x60d200
command = (struct command *) 0x7
__PRETTY_FUNCTION__ = "client_command_input"
#11 0x000000000041c17b in client_command_input (cmd=0x61e048) at
client.c:595
client = (struct client *) 0x60d200
command = (struct command *) 0x60c9b0
__PRETTY_FUNCTION__ = "client_command_input"
#12 0x000000000041c2a3 in client_handle_next_command (client=0x60d200,
remove_io_r=0x7fffffffe1f6) at client.c:636
size = 19
#13 0x000000000041c2f0 in client_handle_input (client=0x60d200) at
client.c:646
_data_stack_cur_id = 3
ret = false
remove_io = false
handled_commands = false
#14 0x000000000041c469 in client_input (client=0x60d200) at client.c:691
cmd = (struct client_command_context *) 0x20060b0e8
output = (struct ostream *) 0x60d368
bytes = 19
__PRETTY_FUNCTION__ = "client_input"
#15 0x00000000004b4076 in io_loop_handler_run (ioloop=0x600240) at
ioloop-kqueue.c:149
ctx = (struct ioloop_handler_context *) 0x60b0e0
events = (struct kevent *) 0x60f000
event = (const struct kevent *) 0x60f000
tv = {tv_sec = 1799, tv_usec = 999708}
ts = {tv_sec = 1799, tv_nsec = 999708000}
io = (struct io_file *) 0x600940
events_count = 3
t_id = 2
ret = 1
i = 0
__PRETTY_FUNCTION__ = "io_loop_handler_run"
#16 0x00000000004b3190 in io_loop_run (ioloop=0x600240) at ioloop.c:301
No locals.
#17 0x0000000000426c0e in main (argc=3, argv=0x7fffffffe340,
envp=0x7fffffffe360) at main.c:293
No locals.
(gdb)
Timo Sirainen
2008-Feb-21 11:07 UTC
[Dovecot] dovecot: child 53439 (imap) killed with signal 11
On Wed, 2008-02-20 at 07:02 -0500, Adam McDougall wrote:> For quite some time I have seen dovecot imap exit with a sig11 without > any other error message, > but usually with the frequency of between once per week and once per day > (per server). A few weeks > ago I finally enabled core dumping with debug symbols and it seemed to > happen less often. I finally > caught a coredump that wasn't overwritten. I have no idea what on the > client end may cause it, it has > happened to myself too.I can't reproduce this, but this is the only thing I can think of: http://hg.dovecot.org/dovecot-1.1/rev/4ac4e9ba1124 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part URL: <http://dovecot.org/pipermail/dovecot/attachments/20080221/7465b279/attachment-0002.bin>
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