#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
        set = {__val = {0, 139838393825344, 139838390057684, 226670640, 140720725487200, 139835545223171, 140720725487184, 139838390088376, 0, 3805341024256, 139838335791488, 37, 1978972555, 226670640, 139838395451504, 140720725487352}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007f2ea992c535 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x555e76fa83e0, sa_sigaction = 0x555e76fa83e0}, sa_mask = {__val = {93864211416144, 93864197664060, 13984943375087777792, 1, 140720725487440, 93864197664111, 93864197664060, 428, 93864216124128, 139838335772864, 93864193754405, 93864216141632, 50, 50, 93864211416032, 93864197664111}}, sa_flags = 2081372160, sa_restorer = 0x1ac}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x0000555e75e2f531 in xassert (msg=msg@entry=0x555e7628ad6f "!isOpen(conn->fd)", file=file@entry=0x555e7628ad3c "comm.cc", line=line@entry=428) at debug.cc:618
        __FUNCTION__ = <optimized out>
#3  0x0000555e760a521a in comm_init_opened (conn=..., note=note@entry=0x555e7629a065 "Pinger Socket", AI=0x555e76fe78a0) at comm.cc:428
        __FUNCTION__ = "comm_init_opened"
        F = <optimized out>
#4  0x0000555e760add82 in comm_openex (sock_type=<optimized out>, proto=<optimized out>, addr=..., flags=2, note=0x555e7629a065 "Pinger Socket") at comm.cc:403
        new_socket = <optimized out>
        AI = 0x555e76fe78a0
        __FUNCTION__ = "comm_openex"
        xerrno = 11
        conn = {p_ = 0x555e77425a20}
#5  0x0000555e75f5c35f in ipcCreate (type=type@entry=2, prog=0x555e76fe8d20 "/usr/lib/squid/pinger", args=args@entry=0x7ffc18daf380, name=name@entry=0x555e7629a065 "Pinger Socket", local_addr=..., rfd=rfd@entry=0x7ffc18daf378, wfd=0x7ffc18daf37c, hIpc=0x555e764f2c28 <_ZL4hIpc>) at ipc.cc:111
        pid = <optimized out>
        ChS = {mSocketAddr_ = {sin6_family = 0, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}, static STRLEN_IP4A = 16, static STRLEN_IP4R = 28, static STRLEN_IP4S = 21, static MAX_IP4_STRLEN = 28, static STRLEN_IP6A = 42, static STRLEN_IP6R = 75, static STRLEN_IP6S = 48, static MAX_IP6_STRLEN = 75, static v4_localhost = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\177\000\000\001", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 127, 256}, __u6_addr32 = {0, 0, 4294901760, 16777343}}}, static v4_anyaddr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\000\000\000", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 0, 0}, __u6_addr32 = {0, 0, 4294901760, 0}}}, static v4_noaddr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\377\377\377\377", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 65535, 65535}, __u6_addr32 = {0, 0, 4294901760, 4294967295}}}, static v6_noaddr = {__in6_u = {__u6_addr8 = '\377' <repeats 16 times>, __u6_addr16 = {65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535}, __u6_addr32 = {4294967295, 4294967295, 4294967295, 4294967295}}}}
        PaS = {mSocketAddr_ = {sin6_family = 0, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}, static STRLEN_IP4A = 16, static STRLEN_IP4R = 28, static STRLEN_IP4S = 21, static MAX_IP4_STRLEN = 28, static STRLEN_IP6A = 42, static STRLEN_IP6R = 75, static STRLEN_IP6S = 48, static MAX_IP6_STRLEN = 75, static v4_localhost = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\177\000\000\001", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 127, 256}, __u6_addr32 = {0, 0, 4294901760, 16777343}}}, static v4_anyaddr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\000\000\000", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 0, 0}, __u6_addr32 = {0, 0, 4294901760, 0}}}, static v4_noaddr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\377\377\377\377", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 65535, 65535}, __u6_addr32 = {0, 0, 4294901760, 4294967295}}}, static v6_noaddr = {__in6_u = {__u6_addr8 = '\377' <repeats 16 times>, __u6_addr16 = {65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535}, __u6_addr32 = {4294967295, 4294967295, 4294967295, 4294967295}}}}
        AI = 0x0
        crfd = -1
        prfd = -1
        cwfd = -1
        pwfd = -1
        fd = <optimized out>
        t1 = <optimized out>
        t2 = <optimized out>
        t3 = <optimized out>
        x = <optimized out>
        xerrno = <optimized out>
        __FUNCTION__ = "ipcCreate"
        _dbg_level = <optimized out>
        _dbo = <optimized out>
        _dbg_level = <optimized out>
        _dbo = <optimized out>
#6  0x0000555e7616f4d0 in IcmpSquid::Open (this=0x555e764f0ba0 <icmpEngine>) at IcmpSquid.cc:212
        args = {0x555e7629a05c "(pinger)", 0x0}
        rfd = -1
        wfd = -1
        localhost = {mSocketAddr_ = {sin6_family = 10, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, "\001", __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 256}, __u6_addr32 = {0, 0, 0, 16777216}}}, sin6_scope_id = 0}, static STRLEN_IP4A = 16, static STRLEN_IP4R = 28, static STRLEN_IP4S = 21, static MAX_IP4_STRLEN = 28, static STRLEN_IP6A = 42, static STRLEN_IP6R = 75, static STRLEN_IP6S = 48, static MAX_IP6_STRLEN = 75, static v4_localhost = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\177\000\000\001", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 127, 256}, __u6_addr32 = {0, 0, 4294901760, 16777343}}}, static v4_anyaddr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\000\000\000", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 0, 0}, __u6_addr32 = {0, 0, 4294901760, 0}}}, static v4_noaddr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\377\377\377\377\377\377", __u6_addr16 = {0, 0, 0, 0, 0, 65535, 65535, 65535}, __u6_addr32 = {0, 0, 4294901760, 4294967295}}}, static v6_noaddr = {__in6_u = {__u6_addr8 = '\377' <repeats 16 times>, __u6_addr16 = {65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535}, __u6_addr32 = {4294967295, 4294967295, 4294967295, 4294967295}}}}
        __FUNCTION__ = <optimized out>
#7  0x0000555e75f65844 in mainRotate () at main.cc:1056
No locals.
#8  SignalEngine::checkEvents (this=<optimized out>) at main.cc:248
No locals.
#9  0x0000555e75efb072 in EventLoop::checkEngine (this=this@entry=0x7ffc18daf6e0, engine=0x7ffc18daf4f8, primary=primary@entry=false) at EventLoop.cc:34
        requested_delay = <optimized out>
        __FUNCTION__ = "checkEngine"
#10 0x0000555e75efb23a in EventLoop::runOnce (this=this@entry=0x7ffc18daf6e0) at EventLoop.cc:105
        i = {_M_current = 0x555e774272d0}
        sawActivity = <optimized out>
        waitingEngine = 0x7ffc18daf508
        __FUNCTION__ = <optimized out>
#11 0x0000555e75efb378 in EventLoop::run (this=this@entry=0x7ffc18daf6e0) at EventLoop.cc:83
No locals.
#12 0x0000555e75f63dc9 in SquidMain (argc=<optimized out>, argv=<optimized out>) at main.cc:1707
        cmdLine = {argv_ = {<std::_Vector_base<char*, std::allocator<char*> >> = {_M_impl = {<std::allocator<char*>> = {<__gnu_cxx::new_allocator<char*>> = {<No data fields>}, <No data fields>}, _M_start = 0x555e76c48050, _M_finish = 0x555e76c48078, _M_end_of_storage = 0x555e76c48078}}, <No data fields>}, shortOptions_ = 0x555e76c48020 "CDFNRSYXa:d:f:hk:m::n:sl:u:vz?", longOptions_ = {<std::_Vector_base<LongOption, std::allocator<LongOption> >> = {_M_impl = {<std::allocator<LongOption>> = {<__gnu_cxx::new_allocator<LongOption>> = {<No data fields>}, <No data fields>}, _M_start = 0x555e76c48190, _M_finish = 0x555e76c48230, _M_end_of_storage = 0x555e76c48290}}, <No data fields>}}
        WIN32_init_err = 0
        __FUNCTION__ = "SquidMain"
        mainLoop = {errcount = 0, static Running = 0x7ffc18daf6e0, last_loop = false, engines = {<std::_Vector_base<AsyncEngine*, std::allocator<AsyncEngine*> >> = {_M_impl = {<std::allocator<AsyncEngine*>> = {<__gnu_cxx::new_allocator<AsyncEngine*>> = {<No data fields>}, <No data fields>}, _M_start = 0x555e774272d0, _M_finish = 0x555e774272f0, _M_end_of_storage = 0x555e774272f0}}, <No data fields>}, timeService = 0x7ffc18daf510, primaryEngine = 0x7ffc18daf508, loop_delay = 1000, error = false, runOnceResult = true}
        signalEngine = {<AsyncEngine> = {_vptr.AsyncEngine = 0x555e763718a0 <vtable for SignalEngine+16>}, <No data fields>}
        store_engine = {<AsyncEngine> = {_vptr.AsyncEngine = 0x555e76371878 <vtable for StoreRootEngine+16>}, <No data fields>}
        comm_engine = {<AsyncEngine> = {_vptr.AsyncEngine = 0x555e76380f68 <vtable for CommSelectEngine+16>}, <No data fields>}
        time_engine = {_vptr.TimeEngine = 0x555e76372578 <vtable for TimeEngine+16>}
#13 0x0000555e75e54c01 in SquidMainSafe (argv=0x7ffc18dafb18, argc=4) at main.cc:1415
        __FUNCTION__ = <optimized out>
        _dbg_level = <optimized out>
        _dbo = <optimized out>
#14 main (argc=4, argv=0x7ffc18dafb18) at main.cc:1403
No locals.