RHEL6.2 Multipathd crashes suddenly for segfault

Issue

The occurrence of the problem is the following.

7/17 2:38
8/16 13:51

Multipathd crashes suddenly in customer's box and it doesn't revive automatically.

Aug 16 13:51:56 localhost multipathd: sdf: add path (uevent)
Aug 16 13:51:56 localhost multipathd: 36019cb71d0eb50f8da2015a311166902: load table [0 419450880 multipath 0 0 1 1 round-robin 0 1 1 8:80 1]
Aug 16 13:51:56 localhost multipathd: 36019cb71d0eb50f8da2015a311166902: event checker started
Aug 16 13:51:56 localhost multipathd: sdf path added to devmap 36019cb71d0eb50f8da2015a311166902
Aug 16 13:51:57 localhost multipathd: reconfigure (operator)
Aug 16 13:51:57 localhost multipathd: clct-ora-arch02-clone: stop event checker thread (140708110862080)
Aug 16 13:51:57 localhost multipathd: BACKUP: stop event checker thread (140708111193856)
Aug 16 13:51:57 localhost multipathd: 36d4ae520a2a58600183545d80b13e281: stop event checker thread (140708111062784)
Aug 16 13:51:57 localhost multipathd: 36019cb71d0eb50f8da2015a311166902: stop event checker thread (140708110796544)
Aug 16 13:51:57 localhost kernel: multipathd[17807]: segfault at 4 ip 0000003fd6823a1b sp 00007ff928fc0380 error 4 in libmultipath.so[3fd6800000+48000]
Aug 16 13:51:57 localhost abrt[18335]: saved core dump of pid 3589 (/sbin/multipathd) to /var/spool/abrt/ccpp-2013-08-16-13:51:57-3589.new/coredump (12140544 bytes)
Aug 16 13:51:57 localhost abrtd: Directory 'ccpp-2013-08-16-13:51:57-3589' creation detected