[sr-dev] [tracker] Task opened: modules/usrloc deadlock on load/restart (Attachment added)

[sip-router]

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User who did this - Seudin Kasumovic (seudin) 

Attached to Project - sip-router
Summary - modules/usrloc deadlock on load/restart
Task Type - Bug Report
Category - Modules kamailio
Status - Unconfirmed
Assigned To - 
Operating System - Linux
Severity - Critical
Priority - Normal
Reported Version - Development
Due in Version - Undecided
Due Date - Undecided
Details - Hi,

kamailio stops responding when location and location_attr table contains non expired contacts and attributes.

I have these settings for usrloc module:

modparam("usrloc", "nat_bflag", FLB_NATB)
modparam("usrloc", "xavp_contact", "ulattrs")
modparam("usrloc", "db_mode", 2)

output of 'bt full' is attached. 

function uldb_preload_attrs locks table by lock_udomain function and then calls get_urecord_by_ruid which again try to locks table.

Workaround by removing lock/unloc domain helps, but then operation is not atomic.

Regards,
Seudin

--
version: kamailio 4.1.0 (i386/linux) 
flags: STATS: Off, EXTRA_DEBUG, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 4MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id:  
compiled on 16:45:39 Dec  6 2013 with gcc 4.5.4

One or more files have been attached.

More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=378

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