RHEL 7.0 NFS Server panics in nfsd_reply_cache_free_locked

Issue

PID: 15957  TASK: ffff8810092b2220  CPU: 7   COMMAND: "nfsd"
 #0 [ffff881008dcfaf0] machine_kexec at ffffffff81041191
 #1 [ffff881008dcfb48] crash_kexec at ffffffff810cf2b2
 #2 [ffff881008dcfc18] oops_end at ffffffff815eb648
 #3 [ffff881008dcfc40] die at ffffffff810162fb
 #4 [ffff881008dcfc70] do_general_protection at ffffffff815eaf4e
 #5 [ffff881008dcfca0] general_protection at ffffffff815ea868
    [exception RIP: nfsd_reply_cache_free_locked+34]
    RIP: ffffffffa03c9c02  RSP: ffff881008dcfd58  RFLAGS: 00010282
    RAX: dead000000200200  RBX: ffff880114d89770  RCX: 00000001810000f1
    RDX: ffff880114d89620  RSI: ffffea000b771a00  RDI: 0000000040000000
    RBP: ffff881008dcfd60   R8: ffff8802ddc68ba0   R9: 00000001810000f1
    R10: ffffea000b771a00  R11: ffffffffa03c9c68  R12: 000000000001d4c0
    R13: ffff88012a767f50  R14: 0000000000000000  R15: ffff881008cc8000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #6 [ffff881008dcfd68] prune_cache_entries at ffffffffa03c9cdd [nfsd]
 #7 [ffff881008dcfd88] nfsd_cache_lookup at ffffffffa03ca285 [nfsd]
 #8 [ffff881008dcfde0] nfsd_dispatch at ffffffffa03bed18 [nfsd]
 #9 [ffff881008dcfe18] svc_process_common at ffffffffa05a99c0 [sunrpc]
#10 [ffff881008dcfe78] svc_process at ffffffffa05a9d37 [sunrpc]
#11 [ffff881008dcfea0] nfsd at ffffffffa03be73f [nfsd]
#12 [ffff881008dcfec8] kthread at ffffffff81085aff
#13 [ffff881008dcff50] ret_from_fork at ffffffff815f316c