Parent proxy CONNECT crash

gistfile1.txt

Thread 9 "[ET_NET 6]" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff28a0700 (LWP 17636)]
0x0000000000516898 in Mutex_trylock (location=..., ahandler=0x0, m=0x0, t=0x7ffff33b3010)
    at /home/jpeach/src/trafficserver.git/iocore/eventsystem/I_Lock.h:289
289	  if (m->thread_holding != t) {
(gdb) 
(gdb) where
#0  0x0000000000516898 in Mutex_trylock (location=..., ahandler=0x0, m=0x0, t=0x7ffff33b3010)
    at /home/jpeach/src/trafficserver.git/iocore/eventsystem/I_Lock.h:289
#1  0x0000000000516c15 in MutexTryLock::MutexTryLock (this=0x7ffff289fae0, location=..., ahandler=0x0, am=..., 
    t=0x7ffff33b3010) at /home/jpeach/src/trafficserver.git/iocore/eventsystem/I_Lock.h:555
#2  0x00000000007e6a4f in read_from_net (nh=0x7ffff33b6cf0, vc=0x7fffa8017480, thread=0x7ffff33b3010)
    at UnixNetVConnection.cc:251
#3  0x00000000007e9453 in UnixNetVConnection::net_read_io (this=0x7fffa8017480, nh=0x7ffff33b6cf0, 
    lthread=0x7ffff33b3010) at UnixNetVConnection.cc:987
#4  0x00000000007deba0 in NetHandler::mainNetEvent (this=0x7ffff33b6cf0, event=5, e=0x11fe8e0) at UnixNet.cc:509
#5  0x0000000000516d1a in Continuation::handleEvent (this=0x7ffff33b6cf0, event=5, data=0x11fe8e0)
    at /home/jpeach/src/trafficserver.git/iocore/eventsystem/I_Continuation.h:153
#6  0x000000000080a4b0 in EThread::process_event (this=0x7ffff33b3010, e=0x11fe8e0, calling_code=5)
    at UnixEThread.cc:143
#7  0x000000000080aace in EThread::execute (this=0x7ffff33b3010) at UnixEThread.cc:270
#8  0x0000000000809aca in spawn_thread_internal (a=0x11887c0) at Thread.cc:84
#9  0x00007ffff63d65ca in start_thread () from /lib64/libpthread.so.0
#10 0x00007ffff56640ed in clone () from /lib64/libc.so.6