Timo,

I finally got around to testing this; actually with 2.2.13rc1, which I was quite sure had the fix included. It *did* solve my problem.

thank you for the resolution

Tom Lieuallen

On 5/2/14, 1:59 AM, Timo Sirainen wrote:
On 17.4.2014, at 3.05, Tom Lieuallen <t...@engr.orst.edu> wrote:

We're currently running 2.1.16.  I've been wanting to update to a 2.2.X 
version, but have been running into problems, even with the latest (2.2.12).  
I'm not sure at what version this issue appeared, but I believe I've tried 
2.2.10, 2.2.11, and now 2.2.12.

We have a shared maildir setup.  With that configuration in place and with a 
user in the dovecot-acl file, I can do the following to make it segfault every 
time.  Note if I comment out the shared namespace config, it does not segfault.

#0  mailbox_settings_find (user=0x6866c0,
    vname=0x670800 "sharedimap/support-reports") at mail-storage.c:624
        box_set = <value optimized out>
        ns = <value optimized out>
#1  0x00007f1cb0323fd0 in mailbox_list_get_storage (list=0x7fff73b39088,
    vname=<value optimized out>, storage_r=0x7fff73b39080)
    at mailbox-list.c:821
        set = <value optimized out>
#2  0x00007f1cb03164a7 in mail_namespace_find_shared (
    namespaces=<value optimized out>,
    mailbox=0x670800 "sharedimap/support-reports") at mail-namespace.c:651
        list = 0x68ea30
        storage = 0x0
#3  mail_namespace_find (namespaces=<value optimized out>,
    mailbox=0x670800 "sharedimap/support-reports") at mail-namespace.c:669
        ns = 0x68ad70
        __FUNCTION__ = "mail_namespace_find"
....
....

Fixed: http://hg.dovecot.org/dovecot-2.2/rev/930b6b1346bd

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