most likely introduced somewhen since 26f3394e

Panic at: Tue, 16 May 2017 08:10:37 GMT
Assert error in WS_Assert_Allocated(), cache/cache_ws.c line 84:
  Condition(p >= ws->s && (p + len) < ws->f) not true.
version = varnish-trunk revision c2ecb4d, vrt api = 6.1
ident = Linux,3.10.0-327.13.1.el7.x86_64,x86_64,-jnone,-smalloc,-smalloc,-hcritbit,epoll
now = 32136798.615207 (mono), 1494922235.224495 (real)
Backtrace:
  0x441e2e: /opt/varnish/sbin/varnishd() [0x441e2e]
  0x442323: /opt/varnish/sbin/varnishd() [0x442323]
  0x463836: /opt/varnish/sbin/varnishd(WS_Assert_Allocated+0x8c) [0x463836]
  0x7f99c1df99da: ./vmod_cache/_vmod_re.ULPFRKSQUETAUXS@AK@LSMKDVYIUYJHP(+0x19da) [0x7f99c1df99da]
  0x7f99c1df9d7d: ./vmod_cache/_vmod_re.ULPFRKSQUETAUXS@AK@LSMKDVYIUYJHP(vmod_regex_backref+0xb3) [0x7f99c1df9d7d]
  0x7f99ca46d261: vcl_boot.1494901856.060504436/vgc.so(VGC_function_vcl_deliver+0x571) [0x7f99ca46d261]
  0x454a42: /opt/varnish/sbin/varnishd() [0x454a42]
  0x455161: /opt/varnish/sbin/varnishd(VCL_deliver_method+0x164) [0x455161]
  0x445e74: /opt/varnish/sbin/varnishd() [0x445e74]
  0x449547: /opt/varnish/sbin/varnishd(CNT_Request+0x51b) [0x449547]
thread = (cache-worker)
thr.req = 0x7f99bb486020 {
  vxid = 13565958, transport = HTTP/1 {
    state = HTTP1::Proc
  }
  step = R_STP_DELIVER,
  req_body = R_BODY_NONE,
  restarts = 0, esi_level = 0,
  sp = 0x7f99bb00f620 {
    fd = 31, vxid = 13565957,
    t_open = 1494922235.218907,
    t_idle = 1494922235.218907,
    transport = HTTP/1 {
      state = HTTP1::Proc
    }
    client = *redacted* 5229,
    privs = 0x7f99bb00f688 {
      priv {p 0x7f99bb488708 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f800
      priv {p 0x7f99bb488770 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80fa10
      priv {p 0x7f99bb4887d8 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f9b0
      priv {p 0x7f99bb488840 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f9a0
      priv {p 0x7f99bb4888a8 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f7e0
      priv {p 0x7f99bb488910 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f910
      priv {p 0x7f99bb488978 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f8c0
      priv {p 0x7f99bb4889e0 l -1 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f7f0
      priv {p 0x7f99bb488a90 l 104 f (nil)} vcl 0x7f99dc8a93c0 id 7f99bb486020 vmod 7f99dc80f950
    },
  },
  worker = 0x7f998f780c30 {
    stack = {0x7f998f781000 -> 0x7f998f761000},
    ws = 0x7f998f780e30 {
      id = \"wrk\",
      {s, f, r, e} = {0x7f998f7803f0, +0, (nil), +2040},
    },
    VCL::method = inside DELIVER,
    VCL::return = 0x0,
    VCL::methods = {RECV, HASH, MISS, DELIVER},
  },
  ws = 0x7f99bb486208 {
    id = \"req\",
    {s, f, r, e} = {0x7f99bb488008, +2888, (nil), +122864},
  },
  http_conn = 0x7f99bb486130 {
    fd = 31 (@0x7f99bb00f638),
    doclose = NULL,
    ws = 0x7f99bb486208 {
      [Already dumped, see above]
    },
    {rxbuf_b, rxbuf_e} = {0x7f99bb488320, 0x7f99bb488617},
    {pipeline_b, pipeline_e} = {(nil), (nil)},
   content_length = -1,
    body_status = none,
    first_byte_timeout = 0.000000,
    between_bytes_timeout = 0.000000,
  },
  http[req] = 0x7f99bb4862a0 {
    ws = 0x7f99bb486208 {
      [Already dumped, see above]
    },
    hdrs {
      \"GET\",
      *REDACTED*,
    },
  },
  http[resp] = 0x7f99bb486b90 {
    ws = 0x7f99bb486208 {
      [Already dumped, see above]
    },
    hdrs {
      \"HTTP/1.1\",
      \"301\",
      \"Moved Permanently\",
      *REDACTED*,
    },
  },
  vcl = {
    name = \"boot\",
    busy = 124,
    discard = 0,
    state = auto,
    temp = warm,
    conf = {
      srcname = {
        \"/opt/varnish/etc/varnish/active.vcl\",
        \"Builtin\",
      },
    },
  },
  vmods = {
    std = {Varnish trunk c2ecb4d, 6.1},
    header = {Varnish trunk c2ecb4d, 6.1},
    cookie = {Varnish trunk c2ecb4d, 6.1},
    directors = {Varnish trunk c2ecb4d, 6.1},
    re = {Varnish trunk c2ecb4d, 6.1},
    blobcode = {Varnish trunk c2ecb4d, 6.1},
    blobdigest = {Varnish trunk c2ecb4d, 6.1},
    var = {Varnish trunk c2ecb4d, 6.1},
    bipa = {Varnish trunk c2ecb4d, 6.1},
  },
  objcore[REQ] = 0x7f9995882020 {
    refcnt = 2,
    flags = {},
    exp_flags = {refd},
    exp = {1494922235.224136, 3.000000, 0.000000, 0.000000},
    objhead = 0x7f9995896080,
    stevedore = 0x7f99dc8a9180 (malloc Transient) {
      Simple = 0x7f9994c50300,
      Obj = 0x7f9994c4c248 {priv=0x7f9994c4c240, ptr=0x7f9994c50300, len=680, space=680},
      LEN = 0x0...0,
      VXID = 0x00cf0007,
      FLAGS = 0x00,
      GZIPBITS = 0x0...0,
      LASTMODIFIED = 0x41d646acfec00000,
      VARY = {len=0, ptr=(nil)},
      HEADERS = {len=560, ptr=0x7f9994c50378},
    },
  },
  flags = {
    hash_ignore_busy,
  },
},
thr.busyobj = (nil) {
},