Re: [Dovecot] v2.2 getting NULL pointer reference with shared namespace in mailbox_tree?

2 Apr 2013


      ...
...
With todays nightly:
dsync(wsunpriv@iai.uni-bonn.de): Panic: file imapc-list.c: line 199 (imapc_list_get_vname): assertion failed: (strncmp(prefix, storage_name, prefix_len) == 0 && storage_name[prefix_len] == list->sep)
Oh, and this would be good to solve too. What does it say with gdb:
gdb dsync core
fr 5
p prefix
p storage_name
p prefix_len
p list.sep
p list.ns.prefix
Thank you very much for your support!
[ 20130401 nightly ]
The p commands say No symbol ... in current context.
Maybe it is "fr 7"?  (I'm no gdb user but most of the symbols are defined here)
(gdb) fr 7
#7  0xffff80ffb74bc606 in imapc_list_get_vname (_list=0x4b9840, storage_name=0xffff80ffb71d656c "") at imapc-list.c:77
77              if (!imap_arg_get_list(&args[0], &flags) ||
(gdb) p storage_name
$2 = 0xffff80ffb71d656c ""
(gdb) p prefix
$3 = 0x4c17a0 "INBOX"
(gdb) p prefix_len
$4 = 5
(gdb) p list.sep
$5 = 46 '.'
(gdb) p list.ns.prefix
There is no member named ns.
[ fr 12 and p ns.prefix => $6 = 0x498780 "" ]
(gdb) bt full
#0  0xffff80ffbc18aaaa in _lwp_kill () from /lib/64/libc.so.1
No symbol table info available.
#1  0xffff80ffbc17f2a1 in thr_kill () from /lib/64/libc.so.1
No symbol table info available.
#2  0xffff80ffbc12feb9 in raise () from /lib/64/libc.so.1
No symbol table info available.
#3  0xffff80ffbc106632 in abort () from /lib/64/libc.so.1
No symbol table info available.
#4  0xffff80ffb7694b6f in default_fatal_finish (type=LOG_TYPE_PANIC, status=0) at failures.c:142
backtrace = 0x4920f8 "/m/sw/dc/20130401/lib/dovecot/libdovecot.so.0.0.0'default_fatal_finish+0x26 [0xffff80ffb7694b48] -> /m/sw/dc/20130401/lib/dovecot/libdovecot.so.0.0.0'default_error_handler+0x0 [0xffff80ffb7694bd7] -> "...
#5  0xffff80ffb7694bd7 in default_fatal_handler (ctx=0xffff80ffbfffee90, format=0xffff80ffb7560590 "file %s: line %d (%s): assertion failed: (%s)",
args=0xffff80ffbfffee70) at failures.c:142
status = 0
#6  0xffff80ffb7694eb8 in i_panic (format=0xffff80ffb7560590 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:142
ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0}
args = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0xffff80ffbfffef70, reg_save_area = 0xffff80ffbfffeea0}}
#7  0xffff80ffb74bc606 in imapc_list_get_vname (_list=0x4b9840, storage_name=0xffff80ffb71d656c "") at imapc-list.c:77
list = (struct imapc_mailbox_list *) 0x4b9840
prefix = 0x4c17a0 "INBOX"
prefix_len = 5
__FUNCTION__ = "imapc_list_get_vname"
#8  0xffff80ffb74e603b in mailbox_list_get_vname (list=0x4b9840, name=0xffff80ffb71d656c "") at ../../src/lib/array.h:197
No locals.
#9  0xffff80ffb71cd0fa in acl_backend_vfile_object_init (_backend=0x4cad10, name=0xffff80ffb71d656c "") at ../../../src/lib/array.h:197
_data_stack_cur_id = 4
backend = (struct acl_backend_vfile *) 0x4cad10
aclobj = (struct acl_object_vfile *) 0x49b520
dir = 0xffff80ffbffff010 "0ðÿ¿ÿ\200ÿÿ\210\034·ÿ\200ÿÿle\035·ÿ\200ÿÿ\020L"
vname = 0x8 

#10 0xffff80ffb71cad88 in acl_object_init_from_name (backend=0x4cad10, name=0xffff80ffb71d656c "") at ../../../src/lib/array.h:197
No locals.
#11 0xffff80ffb71cc9b4 in acl_backend_get_default_rights (backend=0x4cad10, mask_r=0xffff80ffbffff0b8) at acl-backend.c:68
No locals.
#12 0xffff80ffb71d4ba7 in acl_mailbox_try_list_fast (ctx=0x4fcdb0) at acl-mailbox-list.c:63
alist = (struct acl_mailbox_list *) 0x4b9ad0
backend = (struct acl_backend *) 0x4cad10
idxp = (const unsigned int *) 0x4b9ba0
acl_mask = (const struct acl_mask *) 0xffff80ffb76717e7
nonowner_list_ctx = (struct acl_mailbox_list_context *) 0xffff80ffbffff100
ns = (struct mail_namespace *) 0x4b9770
update_ctx = {iter_ctx = 0x4fce60, tree_ctx = 0x4fce40, glob = 0xffff80ffbffff0b0, leaf_flags = 3077123268, parent_flags = 4294934783,
update_only = 0, match_parents = 0}
name = 0x2bffff0d0 
ret = 1
#13 0xffff80ffb71d4f2a in acl_mailbox_list_iter_init (list=0x4b9840, patterns=0xffff80ffbffff200, flags=12) at acl-mailbox-list.c:63
_data_stack_cur_id = 3
alist = (struct acl_mailbox_list *) 0x4b9ad0
ctx = (struct acl_mailbox_list_iterate_context *) 0x4fcdb0
pool = (pool_t) 0x4fcd90
p = 0x474a44 "*"
i = 1
inboxcase = true
#14 0xffff80ffb74fabb4 in mailbox_list_iter_init_multiple (list=0x4b9840, patterns=0xffff80ffbffff200, flags=12) at mailbox-list-iter.c:98
ctx = (struct mailbox_list_iterate_context *) 0x400
ret = 0
__FUNCTION__ = "mailbox_list_iter_init_multiple"
#15 0xffff80ffb74fa72a in mailbox_list_iter_init (list=0x4b9840, pattern=0x474a44 "*", flags=12) at mailbox-list-iter.c:68
patterns = {0x474a44 "*", 0x0}
#16 0x0000000000457d20 in dsync_mailbox_tree_fill (tree=0x51af50, ns=0x4b9770, box_name=0x0, box_guid=0x518768 "") at dsync-mailbox-tree-fill.c:23
list_flags = 12
subs_list_flags = 4356
iter = (struct mailbox_list_iterate_context *) 0x2f00002f004b335f
node = (struct dsync_mailbox_node *) 0x1bffff348
dup_node1 = (struct dsync_mailbox_node *) 0x455eaa
dup_node2 = (struct dsync_mailbox_node *) 0xffff80ffbffff280
info = (const struct mailbox_info *) 0x51bf60
list_pattern = 0x474a44 "*"
ret = 0
__FUNCTION__ = "dsync_mailbox_tree_fill"
#17 0x000000000044b060 in dsync_brain_mailbox_trees_init (brain=0x518740) at dsync-brain-mailbox-tree.c:31
ns = (struct mail_namespace *) 0x4b9770
#18 0x00000000004487ae in dsync_brain_slave_recv_handshake (brain=0x518740) at dsync-brain.c:99
ibc_set = (const struct dsync_ibc_settings *) 0x4b34a0
__FUNCTION__ = "dsync_brain_slave_recv_handshake"
#19 0x0000000000448af7 in dsync_brain_run_real (brain=0x518740, changed_r=0xffff80ffbffff386) at dsync-brain.c:99
changed = false
ret = true
#20 0x0000000000448ca1 in dsync_brain_run (brain=0x518740, changed_r=0xffff80ffbffff386) at dsync-brain.c:99
_data_stack_cur_id = 2
ret = true
#21 0x0000000000445a7e in cmd_dsync_run_local (ctx=0x4a1fe0, user=0x4aab80, brain=0x4b3720, ibc2=0x4b3390) at ../../../src/lib/array.h:197
brain2 = (struct dsync_brain *) 0x518740
user2 = (struct mail_user *) 0x4c03e0
set_parser = (struct setting_parser_context *) 0x4a89f0
set_line = 0x490f60 "mail_location=imapc:"
location = 0xffff80ffbffff96b "imapc:"
brain1_running = true
brain2_running = true
changed1 = true
changed2 = false
ret = 0
__FUNCTION__ = "cmd_dsync_run_local"
#22 0x00000000004460ae in cmd_dsync_run (_ctx=0x4a1fe0, user=0x4aab80) at ../../../src/lib/array.h:197
ctx = (struct dsync_cmd_context *) 0x4a1fe0
ibc = (struct dsync_ibc *) 0x4a1400
ibc2 = (struct dsync_ibc *) 0x4b3390
brain = (struct dsync_brain *) 0x4b3720
sync_ns = (struct mail_namespace *) 0x0
brain_flags = 13
remote_errors_logged = false
status = 0
ret = 0
#23 0x0000000000429a9a in doveadm_mail_next_user (ctx=0x4a1fe0, input=0xffff80ffbffff520, error_r=0xffff80ffbffff588) at doveadm-mail.c:73
error = 0xffff80ffbffff6a8 "kùÿ¿ÿ\200ÿÿ"
ret = 0
__FUNCTION__ = "doveadm_mail_next_user"
#24 0x0000000000429c60 in doveadm_mail_single_user (ctx=0x4a1fe0, input=0xffff80ffbffff520, error_r=0xffff80ffbffff588) at doveadm-mail.c:73
__FUNCTION__ = "doveadm_mail_single_user"
#25 0x000000000042a504 in doveadm_mail_cmd (cmd=0x4a1808, argc=5, argv=0xffff80ffbffff6a8) at doveadm-mail.c:73
input = {module = 0x0, service = 0x46b752 "doveadm", username = 0xffff80ffbffff968 "ws", session_id = 0x0, local_ip = {family = 0, u = {ip6 = {
_S6_un = {_S6_u8 = '\0' , _S6_u32 = {0, 0, 0, 0}, __S6_align = 0}}, ip4 = {S_un = {S_un_b = {s_b1 = 0 '\0', s_b2 = 0 '\0',
s_b3 = 0 '\0', s_b4 = 0 '\0'}, S_un_w = {s_w1 = 0, s_w2 = 0}, S_addr = 0}}}}, remote_ip = {family = 0, u = {ip6 = {_S6_un = {
_S6_u8 = '\0' , _S6_u32 = {0, 0, 0, 0}, __S6_align = 0}}, ip4 = {S_un = {S_un_b = {s_b1 = 0 '\0', s_b2 = 0 '\0', s_b3 = 0 '\0',
s_b4 = 0 '\0'}, S_un_w = {s_w1 = 0, s_w2 = 0}, S_addr = 0}}}}, local_port = 0, remote_port = 0, userdb_fields = 0x0, flags_override_add = 0,
flags_override_remove = 0, no_userdb_lookup = 0}
ctx = (struct doveadm_mail_cmd_context *) 0x4a1fe0
getopt_args = 0x48edb8 "+dEfg:l:m:n:Nr:Rs:RAS:u:"
wildcard_user = 0x0
error = 0x0
ret = 0
c = -1
#26 0x000000000042a77b in doveadm_mail_try_run (cmd_name=0xffff80ffbffff95b "backup", argc=5, argv=0xffff80ffbffff688) at doveadm-mail.c:73
cmd__foreach_end = (const void *) 0x4a1940
cmd = (const struct doveadm_mail_cmd *) 0x4a1808
cmd_name_len = 6
__FUNCTION__ = "doveadm_mail_try_run"
#27 0x000000000043489c in main (argc=5, argv=0xffff80ffbffff688) at doveadm.c:63
service_flags = 10
cmd_name = 0xffff80ffbffff95b "backup"
i = 16
quick_init = false
c = -1
# doveadm ... output:
dsync(ws@iai.uni-bonn.de): Debug: brain M: in state=recv_handshake
dsync(ws@iai.uni-bonn.de): Debug: brain M: out state=send_mailbox_tree_deletes changed=1
dsync(ws@iai.uni-bonn.de): Panic: file imapc-list.c: line 199 (imapc_list_get_vname): assertion failed: (strncmp(prefix, storage_name, prefix_len) == 0 && storage_name[prefix_len] == list->sep)
dsync(ws@iai.uni-bonn.de): Error: Raw backtrace: /m/sw/dc/20130401/lib/dovecot/libdovecot.so.0.0.0'default_fatal_finish+0x26 [0xffff80ffb7694b48] -> /m/sw/dc/20130401/lib/dovecot/libdovecot.so.0.0.0'default_error_handler+0x0 [0xffff80ffb7694bd7] -> /m/sw/dc/20130401/lib/dovecot/libdovecot.so.0.0.0'i_fatal+0x0 [0xffff80ffb7694eb8] -> /m/sw/dc/20130401/lib/dovecot/libdovecot-storage.so.0.0.0'imapc_list_get_vname+0xdb [0xffff80ffb74bc606] -> /m/sw/dc/20130401/lib/dovecot/libdovecot-storage.so.0.0.0'mailbox_list_get_vname+0x28 [0xffff80ffb74e603b] -> /m/sw/dc/20130401/lib/dovecot/lib01_acl_plugin.so'acl_backend_vfile_object_init+0x92 [0xffff80ffb71cd0fa] -> /m/sw/dc/20130401/lib/dovecot/lib01_acl_plugin.so'acl_object_init_from_name+0x2b [0xffff80ffb71cad88] -> /m/sw/dc/20130401/lib/dovecot/lib01_acl_plugin.so'acl_backend_get_default_rights+0x30 [0xffff80ffb71cc9b4] -> /m/sw/dc/20130401/lib/dovecot/lib01_acl_plugin.so'acl_mailbox_try_list_fast+0xb2 [0xffff80ffb71d4ba7] -> /m/sw/dc/20130401/lib/dovecot/lib01_acl_plugin.so'acl_mailbox_list_iter_init+0x188 [0xffff80ffb71d4f2a] -> /m/sw/dc/20130401/lib/dovecot/libdovecot-storage.so.0.0.0'mailbox_list_iter_init_multiple+0x91 [0xffff80ffb74fabb4] -> /m/sw/dc/20130401/lib/dovecot/libdovecot-storage.so.0.0.0'mailbox_list_iter_init+0x39 [0xffff80ffb74fa72a] -> /m/sw/dc/20130401/bin/doveadm'dsync_mailbox_tree_fill+0x107 [0x457d20] -> /m/sw/dc/20130401/bin/doveadm'dsync_brain_mailbox_trees_init+0x128 [0x44b060] -> /m/sw/dc/20130401/bin/doveadm'dsync_brain_slave_recv_handshake+0x1ad [0x4487ae] -> /m/sw/dc/20130401/bin/doveadm'dsync_brain_run_real+0xe7 [0x448af7] -> /m/sw/dc/20130401/bin/doveadm'dsync_brain_run+0x61 [0x448ca1] -> /m/sw/dc/20130401/bin/doveadm'cmd_dsync_run_local+0x335 [0x445a7e] -> /m/sw/dc/20130401/bin/doveadm'cmd_dsync_run+0x26a [0x4460ae] -> /m/sw/dc/20130401/bin/doveadm'doveadm_mail_next_user+0x189 [0x429a9a] -> /m/sw/dc/20130401/bin/doveadm'doveadm_mail_single_user+0x157 [0x429c60] -> /m/sw/dc/20130401/bin/doveadm'doveadm_mail_cmd+0x3bc [0x42a504] -> /m/sw/dc/20130401/bin/doveadm'doveadm_mail_try_run+0xac [0x42a77b] -> /m/sw/dc/20130401/bin/doveadm'main+0x28b [0x43489c] -> /m/sw/dc/20130401/bin/doveadm'_start+0x6c [0x42906c]
Abort (core dumped)
# doveconf -n
# 20130401 (c75b26e1d17f+): /m/sw/dc/20130401/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 acl quota
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 {
acl = vfile:/m/d/etc/acl:cache_secs=300
acl_shared_dict = file:/m/d/etc/shared/mailboxes
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 =

Re: [Dovecot] v2.2 getting NULL pointer reference with shared namespace in mailbox_tree?

Walter Steiner