rpc.statd dumps core, but continues

Since upgrading our NFS server from -6 to -8, repeatedly dumpd core, but 
seems (according to ps -u) to continue to run.

The gdb backtrace is:

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x000000017e402698 in sm_notify_1_svc ()
(gdb) bt
#0  0x000000017e402698 in sm_notify_1_svc ()
#1  0x000000017e4017b5 in sm_prog_1 ()
#2  0x00007a090b4b29d3 in svc_getreq_common () from /usr/lib/libc.so.12
#3  0x00007a090b4b2a21 in svc_getreqset2 () from /usr/lib/libc.so.12
#4  0x00007a090b44a46f in svc_run () from /usr/lib/libc.so.12
#5  0x000000017e4029fe in main ()

Interestingly, two of the three core files I got so far are the exact same 
time (04:36) on different days.