dovecot - Oct 2007 - do 1.1b4 assertion failed: (mailbox_list_is_valid_existing_name

I think this is where I left off last weekend.  Instead of this happening at the
base
of one of my shared mail namespaces, it happens when I try to select a top level
folder
inside the namespace, or try to directly select an entire path to a folder. 
This only
happens when ACL is enabled.  Let me know if I need to provide more.  Thanks.

Oct 27 16:03:27 gribble dovecot: IMAP(mcdouga9): file mailbox-list-maildir.c:
line 186
(maildir_list_get_path): assertion failed:
(mailbox_list_is_valid_existing_name(_list, name))
Oct 27 16:03:27 gribble dovecot: child 51261 (imap) killed with signal 6

a0011 LIST "" "#shared/decs/backups/%"
IMAP(mcdouga9): Info: acl vfile: file /usr/local/etc/dovecot-acls//.DEFAULT not
found
IMAP(mcdouga9): Info: acl vfile: file /home/mcdouga9/Maildir/dovecot-acl not
found
IMAP(mcdouga9): Info: acl vfile: file /usr/local/etc/dovecot-acls//.DEFAULT not
found
IMAP(mcdouga9): Info: acl vfile: reading file /egr/mail/shared/decs/dovecot-acl
IMAP(mcdouga9): Panic: file mailbox-list-maildir.c: line 186
(maildir_list_get_path): assertion failed:
(mailbox_list_is_valid_existing_name(_list, name))

Program received signal SIGABRT, Aborted.
0x00000008009c34bc in kill () from /lib/libc.so.6
(gdb) bt full
#0  0x00000008009c34bc in kill () from /lib/libc.so.6
No symbol table info available.
#1  0x00000008009c234d in abort () from /lib/libc.so.6
No symbol table info available.
#2  0x00000000004a1414 in default_fatal_handler (type=LOG_TYPE_PANIC, status=0,
    format=0x4bc930 "file %s: line %d (%s): assertion failed: (%s)",
args=0x7fffffffda50) at failures.c:177
        backtrace = 0x5f38c0 "\200T`"
#3  0x00000000004a167b in i_panic (format=0x4bc930 "file %s: line %d (%s):
assertion failed: (%s)")
    at failures.c:211
        args = {{gp_offset = 8, fp_offset = 48, overflow_arg_area =
0x7fffffffdb40,
    reg_save_area = 0x7fffffffda80}}
#4  0x0000000000429b07 in maildir_list_get_path (_list=0x603048, name=0x602900
"#shared/decs/receipts",
    type=MAILBOX_LIST_PATH_TYPE_MAILBOX) at mailbox-list-maildir.c:186
        list = (struct maildir_mailbox_list *) 0x603048
        __PRETTY_FUNCTION__ = "maildir_list_get_path"
#5  0x000000000048e4e1 in mailbox_list_get_path (list=0x603048, name=0x602900
"#shared/decs/receipts",
    type=MAILBOX_LIST_PATH_TYPE_MAILBOX) at mailbox-list.c:265
No locals.
#6  0x000000000048ce69 in mail_storage_get_mailbox_path (storage=0x5fdc48,
name=0x602900
"#shared/decs/receipts",
    is_file_r=0x7fffffffdc07) at mail-storage.c:389
No locals.
#7  0x0000000800b07720 in acl_backend_vfile_object_init () from 
/usr/local/lib/dovecot/imap/lib01_acl_plugin.so
No symbol table info available.
#8  0x0000000800b08708 in acl_backend_vfile_acllist_rebuild () from 
/usr/local/lib/dovecot/imap/lib01_acl_plugin.so
No symbol table info available.
#9  0x0000000800b08beb in acl_backend_vfile_acllist_refresh () from 
/usr/local/lib/dovecot/imap/lib01_acl_plugin.so
No symbol table info available.
#10 0x0000000800b08ce2 in acl_backend_vfile_acllist_verify () from 
/usr/local/lib/dovecot/imap/lib01_acl_plugin.so
No symbol table info available.
#11 0x0000000800b083a9 in acl_backend_vfile_object_refresh_cache ()
   from /usr/local/lib/dovecot/imap/lib01_acl_plugin.so
No symbol table info available.
#12 0x0000000800b07546 in acl_backend_get_default_rights () from 
/usr/local/lib/dovecot/imap/lib01_acl_plugin.so
No symbol table info available.
#13 0x0000000800b0a9ed in acl_mailbox_list_iter_init () from
/usr/local/lib/dovecot/imap/lib01_acl_plugin.so
No symbol table info available.
#14 0x000000000048e85f in mailbox_list_iter_init_multiple (list=0x603048,
patterns=0x5f4298,
    flags=MAILBOX_LIST_ITER_RETURN_CHILDREN) at mailbox-list.c:357
        __PRETTY_FUNCTION__ = "mailbox_list_iter_init_multiple"
#15 0x000000000041752c in list_namespace_init (ctx=0x60d0b0) at cmd-list.c:642
        ns = (struct mail_namespace *) 0x5fd848
        cur_ns_prefix = 0x5fd880 "#shared/decs/"
        cur_ref = 0x5f4318 ""
        pat = (const char * const *) 0x5f4298
        pattern = 0x611178 "#shared/decs/backups/%"
        inbox_match = IMAP_MATCH_NO
        used_patterns = {arr = {buffer = 0x5f4260, element_size = 8}, v =
0x5f4260, v_modifiable = 0x5f4260}
        inboxcase = false
#16 0x0000000000417738 in cmd_list_continue (cmd=0x60d048) at cmd-list.c:673
        ctx = (struct cmd_list_context *) 0x60d0b0
        ret = 1
#17 0x0000000000417e1c in cmd_list_full (cmd=0x60d048, lsub=false) at
cmd-list.c:847
        client = (struct client *) 0x602100
        args = (const struct imap_arg *) 0x6110c0
        arg = (const struct imap_arg *) 0x41bb68
        ctx = (struct cmd_list_context *) 0x60d0b0
        patterns = {arr = {buffer = 0x60d0f8, element_size = 8}, v = 0x60d0f8,
v_modifiable = 0x60d0f8}
        pattern = 0x611178 "#shared/decs/backups/%"
        patterns_strarr = (const char * const *) 0x60d130
#18 0x0000000000417e8a in cmd_list (cmd=0x60d048) at cmd-list.c:862
No locals.
#19 0x000000000041b0b2 in client_command_input (cmd=0x60d048) at client.c:505
        client = (struct client *) 0x602100
        __PRETTY_FUNCTION__ = "client_command_input"
#20 0x000000000041b2b1 in client_command_input (cmd=0x60d048) at client.c:562
        client = (struct client *) 0x602100
        __PRETTY_FUNCTION__ = "client_command_input"
#21 0x000000000041b3e2 in client_handle_next_command (client=0x602100) at
client.c:598
        size = 39
#22 0x000000000041b505 in client_input (client=0x602100) at client.c:633
        cmd = (struct client_command_context *) 0x2005fe0a8
        ret = 32767
        __PRETTY_FUNCTION__ = "client_input"
#23 0x00000000004ab987 in io_loop_handler_run (ioloop=0x5f3140) at
ioloop-kqueue.c:149
        ctx = (struct ioloop_handler_context *) 0x5fe0a0
        events = (struct kevent *) 0x600000
        event = (const struct kevent *) 0x600000
        tv = {tv_sec = 9, tv_usec = 996738}
        ts = {tv_sec = 9, tv_nsec = 996738000}
        io = (struct io_file *) 0x5f36c0
        events_count = 2
        t_id = 2
        msecs = 9997
        ret = 1
        i = 0
        __PRETTY_FUNCTION__ = "io_loop_handler_run"
#24 0x00000000004aaaa0 in io_loop_run (ioloop=0x5f3140) at ioloop.c:305
No locals.
#25 0x000000000042525e in main (argc=1, argv=0x7fffffffe320,
envp=0x7fffffffe330) at main.c:293
No locals.

On Sat, 2007-10-27 at 16:31 -0400, Adam McDougall wrote:
> Oct 27 16:03:27 gribble dovecot: IMAP(mcdouga9): file
mailbox-list-maildir.c: line 186
> (maildir_list_get_path): assertion failed:
(mailbox_list_is_valid_existing_name(_list, name))
Are you using patched beta4 or all changes from hg? I thought
http://hg.dovecot.org/dovecot/rev/1478fc5cf632 fixed this.

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On Sat, Oct 27, 2007 at 11:38:58PM +0300, Timo Sirainen wrote:

  On Sat, 2007-10-27 at 16:31 -0400, Adam McDougall wrote:
  > Oct 27 16:03:27 gribble dovecot: IMAP(mcdouga9): file
mailbox-list-maildir.c: line 186
  > (maildir_list_get_path): assertion failed:
(mailbox_list_is_valid_existing_name(_list, name))
  
  Are you using patched beta4 or all changes from hg? I thought
  http://hg.dovecot.org/dovecot/rev/1478fc5cf632 fixed this.
  
Patched beta4.  I assumed beta4 contained all the patches you came up with
for me that apply to b3, and I can confirm the patch you mention above is 
applied.  Last weekend it allowed me to list the folders in the namespace,
but it did, and still, crashes when trying to go further.

On Sat, 2007-10-27 at 16:31 -0400, Adam McDougall wrote:
> Oct 27 16:03:27 gribble dovecot: IMAP(mcdouga9): file
mailbox-list-maildir.c: line 186
> (maildir_list_get_path): assertion failed:
(mailbox_list_is_valid_existing_name(_list, name))
OK, this should fix a lot of things:
http://hg.dovecot.org/dovecot/rev/e1fde9940f7e

One bug with ACL plugin still is that if you have a "foo/bar" mailbox
in
a public namespace but no "foo", LIST "" % doesn't show
"foo" as
placeholder mailbox. This happens with v1.0 too I think. I'll try to get
that fixed soon.


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On Sun, Oct 28, 2007 at 01:57:52AM +0300, Timo Sirainen wrote:

  On Sat, 2007-10-27 at 16:31 -0400, Adam McDougall wrote:
  > Oct 27 16:03:27 gribble dovecot: IMAP(mcdouga9): file
mailbox-list-maildir.c: line 186
  > (maildir_list_get_path): assertion failed:
(mailbox_list_is_valid_existing_name(_list, name))
  
  OK, this should fix a lot of things:
  http://hg.dovecot.org/dovecot/rev/e1fde9940f7e

No crashes yet, folder access seems fine so far.  Thanks!
  
  One bug with ACL plugin still is that if you have a "foo/bar"
mailbox in
  a public namespace but no "foo", LIST "" % doesn't
show "foo" as
  placeholder mailbox. This happens with v1.0 too I think. I'll try to get
  that fixed soon.
  
I've probably noticed this back when I moved some courier shared mailboxes
to
dovecot and created the placeholder mailboxes to satisfy the requirement. 
If later I don't need these folders it would be nice so I can clean up some
directories and scripts, but I'll still need to be able to fake a
subscription
to them for the sake of some IMAP clients that display folders strangely when
the entire path down to a subfolder is not subscribed.  For example,
squirrelmail
can do shared folders, but if I have folders subscribed as below marked with *:

* some-private-folder
* some-private-folder/subfolder
* another-private-folder
  folderA
* folderA/In
  folderB
* folderB/In
  
Squirrelmail shows subscribed folders in tree form:

some-private-folder
  subfolder
another-private-folder
  In
  In

I can definitely understand if this is felt to be something I should continue
making
folders for, just mentioning a particular need I would need still need to
satisfy if
these folders are not required by the acl plugin someday.