Found out what triggers the crashes: it is *not* the lexicographically
lowest someotheruser,
it is a someotheruser with a group acl active on its INBOX. If you
manually remove the group acl
from the affected mailbox's acl file, access is possible as granted to
users in the remaining acl lines.
This can be tested just by dovecot acl debug - it crashes the same way
as the imap process and is
much easier to debug. To provoke crashing, just issue something like:
$ doveadm acl add -u someuser shared/someotheruser/INBOX group=somegroup
lookup
This command will try to rmdir someotheruser's inbox file, then crash,
plus any subsequent calls like
$ doveadm acl debug -u someuser shared/someotheruser/INBOX
will crash as well.
The rmdir phaenomenon is showing with doveadm acl debug, as well. It
doesn't appear to be
directly related to the crashes on group acls, however. For example,
after "repairing" the ACL:
$ doveadm acl debug -u someuser shared/someotheruser
(note: /INBOX is missing here, as explicit inbox is configured), will
try to rmdir /var/mail/someotheruser
and then will show that noch such Mailbox exists, whereas
$ doveadm acl debug -u someuser shared/someotheruser2
simply shows that such a Mailbox doesn't exist in the given namespace.
I have no idea what is triggering the different behaviour between
someotheruser and someotheruser2.
_______________________________________________
dovecot mailing list -- [email protected]
To unsubscribe send an email to [email protected]
