I stumbled over another segmentation fault:
# /m/sw/dc/a/libexec/dovecot/imap -u cyrtest1 Debug: Loading modules from directory: /m/sw/dc/2.2-20130322/lib/dovecot Debug: Module loaded: /m/sw/dc/2.2-20130322/lib/dovecot/lib15_notify_plugin.so Debug: Module loaded: /m/sw/dc/2.2-20130322/lib/dovecot/lib20_mail_log_plugin.so Debug: auth input: cyrtest1@iai.uni-bonn.de uid=13004 gid=13004 home=/m/d/user/cyrtest1 Debug: changed username to cyrtest1@iai.uni-bonn.de Debug: Effective uid=13004, gid=13004, home=/m/d/user/cyrtest1 Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=sdbox:/m/d/imap/mbox/m/cyrtest1 Debug: fs: root=/m/d/imap/mbox/m/cyrtest1, index=, indexpvt=, control=, inbox=, alt= Debug: Namespace user: type=shared, prefix=user/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=sdbox:/m/d/imap/mbox/m/%n Debug: shared: root=/var/run/dovecot/, index=, indexpvt=, control=, inbox=, alt=
- PREAUTH [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE BINARY MOVE] Logged in as cyrtest1@iai.uni-bonn.de . namespace
- NAMESPACE (("" "/")) (("user/" "/")) NIL . OK Namespace completed. . lsub "" * Segmentation fault (core dumped)
I'm not familiar with gdb / debugging. gdb bt full is following but I'm afraid line numbers are not yet correct, are they? Compiler is gcc 4.5.2 output of make command while building dovecot does not show "-O"... (also tried "-O0" before ... as mentioned on some web pages)
file src/lib-storage/mailbox-tree.c function mailbox_tree_traverse() line number 103:
for (name = path;; path++) {
if (*path != tree->separator && *path != '\0')
^^^^^^^^^^^^^^^ and tree is 0x0#0 0xffff80ffb73d91cb in mailbox_tree_traverse (tree=0x0, path=0x472830 "user", create=false, created_r=0xffff80ffbffff187) at mailbox-tree.c:41
41 i_assert(mailbox_node_size >= sizeof(struct mailbox_node));
(gdb) bt full
#0 0xffff80ffb73d91cb in mailbox_tree_traverse (tree=0x0, path=0x472830 "user", create=false, created_r=0xffff80ffbffff187) at mailbox-tree.c:41
node = (struct mailbox_node **) 0x10
parent = (struct mailbox_node *) 0x0
name = 0x472830 "user"
str = (string_t *) 0x44d658
#1 0xffff80ffb73d9417 in mailbox_tree_lookup (tree=0x0, path=0x472830 "user") at mailbox-tree.c:41
_data_stack_cur_id = 5
node = (struct mailbox_node *) 0x0
created = false
#2 0xffff80ffb73f01c6 in mailbox_list_set_subscription_flags (list=0x46c4d0, vname=0x472830 "user", flags=0x4725e8) at mailbox-list-subscriptions.c:47
node = (struct mailbox_node *) 0xffff80ffbf760030
#3 0xffff80ffb73eb4bc in mailbox_list_ns_prefix_return (ctx=0x472540, ns=0x46c400, has_children=false) at mailbox-list-iter.c:98
subs_ns = (struct mail_namespace *) 0x46c400
box = (struct mailbox *) 0xffff80ffb73ecae8
existence = 4294934783
ret = 0
__FUNCTION__ = "mailbox_list_ns_prefix_return"
#4 0xffff80ffb73eb9d8 in mailbox_list_ns_iter_try_next (_ctx=0x472540, info_r=0xffff80ffbffff2c8) at mailbox-list-iter.c:98
ctx = (struct ns_list_iterate_context *) 0x472540
ns = (struct mail_namespace *) 0x3
info = (const struct mailbox_info *) 0x0
error = MAIL_ERROR_NONE
errstr = 0x472540 "(&G"
has_children = false
__FUNCTION__ = "mailbox_list_ns_iter_try_next"
#5 0xffff80ffb73ebb8d in mailbox_list_ns_iter_next (_ctx=0x472540) at mailbox-list-iter.c:98
info = (const struct mailbox_info *) 0x0
#6 0xffff80ffb73ec7f7 in mailbox_list_iter_next_call (ctx=0x472540) at mailbox-list-iter.c:98
info = (const struct mailbox_info *) 0x63207361206e6920
set = (const struct mailbox_settings *) 0x646567676f4c205d
#7 0xffff80ffb73ecad8 in mailbox_list_iter_next (ctx=0x472540) at mailbox-list-iter.c:98
_data_stack_cur_id = 4
info = (const struct mailbox_info *) 0xffff80ffbf770030
#8 0x000000000041ac70 in cmd_list_continue (cmd=0x46d900) at ../../src/lib/array.h:197
ctx = (struct cmd_list_context *) 0x46d9f8
info = (const struct mailbox_info *) 0x41ae1a
flags = 0
str = (string_t *) 0x44d410
mutf7_name = (string_t *) 0x44d560
name = 0xffff80ffbffff3a0 "0ôÿ¿ÿ\200ÿÿ!µA"
ret = 0
#9 0x000000000041b521 in cmd_list_full (cmd=0x46d900, lsub=true) at ../../src/lib/array.h:197
client = (struct client *) 0x46d0f0
args = (const struct imap_arg *) 0x4721c8
list_args = (const struct imap_arg *) 0xffff80ffbc1f8e79
arg_count = 4294934783
ctx = (struct cmd_list_context *) 0x46d9f8
patterns = {arr = {buffer = 0x46da38, element_size = 8}, v = 0x46da38, v_modifiable = 0x46da38}
ref = 0x46da28 ""
pattern = 0x46da30 "*"
patterns_strarr = (const char * const *) 0x46da70
str = (string_t *) 0x44d2b8
#10 0x000000000041b61d in cmd_lsub (cmd=0x46d900) at cmd-lsub.c:8
No locals.
#11 0x0000000000424697 in command_exec (cmd=0x46d900) at imap-commands.c:99
hook = (const struct command_hook *) 0x457ec0
ret = false
#12 0x00000000004235fb in client_command_input (cmd=0x46d900) at imap-client.c:119
client = (struct client *) 0x46d0f0
command = (struct command *) 0xffff80ffbffff4d0
__FUNCTION__ = "client_command_input"
#13 0x00000000004238fb in client_command_input (cmd=0x46d900) at imap-client.c:119
client = (struct client *) 0x46d0f0
command = (struct command *) 0x45ce58
__FUNCTION__ = "client_command_input"
#14 0x0000000000423a1b in client_handle_next_command (client=0x46d0f0, remove_io_r=0xffff80ffbffff55d) at imap-client.c:119
No locals.
#15 0x0000000000423a9b in client_handle_input (client=0x46d0f0) at imap-client.c:119
_data_stack_cur_id = 3
ret = false
remove_io = false
handled_commands = false
__FUNCTION__ = "client_handle_input"
#16 0x0000000000423c2e in client_input (client=0x46d0f0) at imap-client.c:119
cmd = (struct client_command_context *) 0x4663e8
output = (struct ostream *) 0x467968
bytes = 12
__FUNCTION__ = "client_input"
#17 0xffff80ffb753c1de in io_loop_call_io (io=0x458690) at ioloop.c:26
ioloop = (struct ioloop *) 0x457d00
t_id = 2
#18 0xffff80ffb753d851 in io_loop_handler_run (ioloop=0x457d00) at ioloop-poll.c:96
ctx = (struct ioloop_handler_context *) 0x455420
pollfd = (struct pollfd *) 0x45c6a8
tv = {tv_sec = 57, tv_usec = 597544}
io = (struct io_file *) 0x458690
msecs = 57598
ret = 0
call = true
#19 0xffff80ffb753c281 in io_loop_run (ioloop=0x457d00) at ioloop.c:26
No locals.
#20 0xffff80ffb74d40c2 in master_service_run (service=0x457bd0, callback=0x430806
And without the shared namespace "user" no such crash!
# 20130322: /m/sw/dc/2.2-20130322/etc/dovecot/dovecot.conf # OS: SunOS 5.11 i86pc zfs auth_debug = yes auth_debug_passwords = yes auth_default_realm = iai.uni-bonn.de auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = sha1 base_dir = /var/run/dovecot/ debug_log_path = /tmp/dcd imapc_features = rfc822.size imapc_host = mailbox.iai.uni-bonn.de imapc_list_prefix = INBOX imapc_master_user = ... imapc_password = ... imapc_port = 993 imapc_ssl = imaps imapc_ssl_verify = no imapc_user = %n log_path = /tmp/dce mail_debug = yes mail_gid = dovemail mail_location = sdbox:/m/d/imap/mbox/m/%n mail_plugins = notify mail_log mail_uid = dovemail namespace inbox { hidden = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / subscriptions = yes type = private } namespace user { hidden = no list = children location = sdbox:/m/d/imap/mbox/m/%%n prefix = user/%%u/ separator = / type = shared } passdb { args = scheme=CRYPT username_format=%u /m/d/etc/user/pw driver = passwd-file } passdb { args = username_format=%n /m/d/etc/user/global/pw-master-giat driver = passwd-file master = yes pass = yes } passdb { args = username_format=%n /m/d/etc/user/global/pw-master-top driver = passwd-file master = yes pass = yes } passdb { args = username_format=%n /m/d/etc/user/global/pw-master-top driver = passwd-file } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append mailbox_create save flag_change mail_log_fields = uid box msgid size } protocols = imap pop3 service auth-worker { user = doveauth } service auth { user = doveauth } service imap-login { process_min_avail = 4 service_count = 1 } service imap { executable = imap process_limit = 1024 } service pop3 { executable = pop3 process_limit = 64 } ssl_cert =