sshd crash

[Howard Su]

I running freebsd in BeagleBone Black.
root at beaglebone:~ # uname -a
FreeBSD beaglebone 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r257039: Thu Oct 24
11:39:07 CET 2013
root at testbed:/usr/home/howard/bbb/crochet-freebsd/work/obj/arm.armv6/usr/src/sys/BEAGLEBONE
arm

debug1: HPN Disabled: 0, HPN Buffer Size: 65536
debug1: Client protocol version 2.0; client software version
PuTTY_Release_0.63
debug1: no match: PuTTY_Release_0.63
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.3_hpn13v11 FreeBSD-20130918
debug1: permanently_set_uid: 22/22 [preauth]
debug1: list_hostkey_types: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256 [preauth]
debug1: SSH2_MSG_KEXINIT sent [preauth]
debug1: SSH2_MSG_KEXINIT received [preauth]
debug1: kex: client->server aes256-ctr hmac-sha2-256 none [preauth]
debug1: kex: server->client aes256-ctr hmac-sha2-256 none [preauth]
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST_OLD received [preauth]
<jemalloc>: jemalloc_arena.c:387: Failed assertion: "p[i] == 0"
debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent [preauth]
debug1: monitor_read_log: child log fd closed
debug1: do_cleanup
debug1: Killing privsep child 807

I find the workaround with the history, add UsePrivilegeSeparation no into
/etc/ssh/sshd_config. I just wondering if anyone is working on this issue?
I would like to dig into more details if no one is active looking at this.

-- 
-Howard