Tvheadend

Upgraded to 4.3-1638~gf0524db (from a ~5 day older version) and crashes on playback request

2018-12-10 02:46:36.629 [  ALERT] CRASH: Signal: 6 in PRG: tvheadend (4.3-1638~gf0524db) [b1e3084b82da029a1fe68c8479577cf3049b92aa] CWD: /home/hts
2018-12-10 02:46:36.629 [  ALERT] CRASH: Fault address 0x6f0000114c (N/A)
2018-12-10 02:46:36.629 [  ALERT] CRASH: Loaded libraries: /usr/lib/x86_64-linux-gnu/libdvbcsa.so.1 /lib/x86_64-linux-gnu/libssl.so.1.0.0 /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 /lib/x86_64-linux-gnu/libz.so.1 /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0 /usr/lib/x86_64-linux-gnu/liburiparser.so.1 /usr/lib/x86_64-linux-gnu/libavahi-common.so.3 /usr/lib/x86_64-linux-gnu/libavahi-client.so.3 /lib/x86_64-linux-gnu/libdbus-1.so.3 /lib/x86_64-linux-gnu/libdl.so.2 /lib/x86_64-linux-gnu/libpthread.so.0 /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/librt.so.1 /usr/lib/x86_64-linux-gnu/libstdc++.so.6 /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libsystemd.so.0 /lib64/ld-linux-x86-64.so.2 /lib/x86_64-linux-gnu/libgcc_s.so.1 /lib/x86_64-linux-gnu/libselinux.so.1 /lib/x86_64-linux-gnu/liblzma.so.5 /lib/x86_64-linux-gnu/libgcrypt.so.20 /lib/x86_64-linux-gnu/libpcre.so.3 /lib/x86_64-linux-gnu/libgpg-error.so.0
2018-12-10 02:46:36.629 [  ALERT] CRASH: Register dump [23]: 00007f36363d470000000000000000210000000000000008000000000000020200007f3610029570000055e181711db000007f36100296380000000000000000000000000000114c0000000000001156000000005c0e440b00007f36100288880000000000000006000000000000000000007f3638caa42800007f36363b363800007f3638caa4280000000000000202000000000000003300000000000000000000000000000000fffffffe7ffbba130000000000000000
2018-12-10 02:46:36.629 [  ALERT] CRASH: STACKTRACE
2018-12-10 02:46:36.920 [  ALERT] CRASH: /project/repo/checkout/src/trap.c:176 0x55e18163fded 0x55e18142c000
2018-12-10 02:46:37.177 [  ALERT] CRASH: ??:0 0x7f36398e3390 0x7f36398d2000
2018-12-10 02:46:37.177 [  ALERT] CRASH: gsignal+0x38  (/lib/x86_64-linux-gnu/libc.so.6)
2018-12-10 02:46:37.177 [  ALERT] CRASH: abort+0x16a  (/lib/x86_64-linux-gnu/libc.so.6)
2018-12-10 02:46:37.390 [  ALERT] CRASH: /project/repo/checkout/src/tvh_thread.c:437 0x55e181600ef9 0x55e18142c000
2018-12-10 02:46:37.611 [  ALERT] CRASH: /project/repo/checkout/src/tvh_thread.h:75 0x55e1815f2ee8 0x55e18142c000
2018-12-10 02:46:37.837 [  ALERT] CRASH: /project/repo/checkout/src/input/mpegts/iptv/iptv_http.c:258 0x55e181711f9e 0x55e18142c000
2018-12-10 02:46:38.053 [  ALERT] CRASH: /project/repo/checkout/src/httpc.c:1112 0x55e181654911 0x55e18142c000
2018-12-10 02:46:38.274 [  ALERT] CRASH: /project/repo/checkout/src/httpc.c:1195 0x55e181654f08 0x55e18142c000
2018-12-10 02:46:38.489 [  ALERT] CRASH: /project/repo/checkout/src/httpc.c:1453 0x55e1816550c1 0x55e18142c000
2018-12-10 02:46:38.705 [  ALERT] CRASH: /project/repo/checkout/src/tvh_thread.c:91 0x55e1816000d5 0x55e18142c000

Ran A gdb for first time not sure if correct.

#0  0x00007ff99ac5b428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
        resultvar = 0
        pid = 5099
        selftid = 5109
#1  0x00007ff99ac5d187 in __GI_abort () at abort.c:118
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {18446744073709551615 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x0}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00005556692e9ef9 in tvh_mutex_not_held (file=<optimized out>, line=<optimized out>) at src/tvh_thread.c:437
No locals.
#3  0x00005556692dbee8 in lock_assert0 (line=365, file=0x55566a236248 "src/main.c", l=0x55566a9f4800 <global_lock>) at /project/repo/checkout/src/tvh_thread.h:75
No locals.
#4  gtimer_arm_absn (gti=0x7ff97802aef8, callback=0x5556693fadb0 <iptv_http_kick_cb>, opaque=0x7ff97802b0e0, when=1544439590) at src/main.c:365
No locals.
#5  0x00005556693faf9e in iptv_http_header (hc=0x7ff97802b0e0) at src/input/mpegts/iptv/iptv_http.c:258
        hp = 0x7ff97802aee0
        im = <optimized out>
        argv = {0x7ff964002680 "video/mpeg", 0x0, 0x0}
        s = 0x7ff964002680 "video/mpeg" 
        n = <optimized out>
#6  0x000055566933d911 in http_client_run0 (hc=hc@entry=0x7ff97802b0e0) at src/httpc.c:1112
        buf = 0x7ff9983647f0 "HTTP/1.0 200 OK\r\nContent-Type: video/mpeg\r\nConnection: close\r\nX-Playback-Id: 4c18524de191c214ffbc9b605568374809d50dcd\r\n\r\ned\r\nConnection: close\r\nSet-Cookie: __cfduid=d53e3f2b7a6654ada485df95f6918ae3d15"...
        saveptr = 0x7ff964000935 "" 
        argv = {0x7ff9640008c0 "HTTP/1.0", 0x7ff9640008c9 "200", 0x7ff9640008cd "OK"}
        d = <optimized out>
        p = <optimized out>
        ver = 0
        res = <optimized out>
        delimsize = <optimized out>
        r = <optimized out>
        len = <optimized out>
#7  0x000055566933df08 in http_client_run (hc=hc@entry=0x7ff97802b0e0) at src/httpc.c:1195
        r = <optimized out>
#8  0x000055566933e0c1 in http_client_thread (p=<optimized out>) at src/httpc.c:1453
        n = <optimized out>
        ev = {fd = -1, events = 1, ptr = 0x7ff97802b0e0}
        hc = <optimized out>
        c = 0 '\000'
#9  0x00005556692e90d5 in thread_wrapper (p=0x55566c6e0e60) at src/tvh_thread.c:91
        set = {__val = {16388, 0 <repeats 15 times>}}
        r = <optimized out>
#10 0x00007ff99b88a6ba in start_thread (arg=0x7ff998385700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7ff998385700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140709977413376, 5972386818762493052, 0, 140727857073791, 140709977414080, 5, -5975961851218867076, -5975967491943674756}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread" 
#11 0x00007ff99ad2d41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109