Major Description
See a new core dump in v5.2.0 after running stable for over 48 hours. Below is the bt and some gdb info.
(gdb) bt #0 0x0000000000773056 in EThread::is_event_type (this=0x0, et=2) at UnixEThread.cc:121 #1 0x0000000000750cfe in UnixNetProcessor::connect_re_internal (this=0x1032fc0, cont=0x2aad4590d080, target=0x2aad4590d728, opt=0x2aac8b367600) at UnixNetProcessor.cc:247 #2 0x000000000052b498 in NetProcessor::connect_re (this=0x1032fc0, cont=0x2aad4590d080, addr=0x2aad4590d728, opts=0x2aac8b367600) at ../iocore/net/P_UnixNetProcessor.h:85 #3 0x00000000005e64e5 in HttpSM::do_http_server_open (this=0x2aad4590d080, raw=false) at HttpSM.cc:4796 #4 0x00000000005edec7 in HttpSM::set_next_state (this=0x2aad4590d080) at HttpSM.cc:7141 #5 0x00000000005ed2f2 in HttpSM::call_transact_and_set_next_state (this=0x2aad4590d080, f=0x607320 <HttpTransact::HandleResponse(HttpTransact::State*)>) at HttpSM.cc:6961 #6 0x00000000005e7b72 in HttpSM::handle_server_setup_error (this=0x2aad4590d080, event=104, data=0x2aade42edae8) at HttpSM.cc:5308 #7 0x00000000005dc57c in HttpSM::state_send_server_request_header (this=0x2aad4590d080, event=104, data=0x2aade42edae8) at HttpSM.cc:1989 #8 0x00000000005de6a2 in HttpSM::main_handler (this=0x2aad4590d080, event=104, data=0x2aade42edae8) at HttpSM.cc:2570 #9 0x0000000000502eae in Continuation::handleEvent (this=0x2aad4590d080, event=104, data=0x2aade42edae8) at ../iocore/eventsystem/I_Continuation.h:146 #10 0x00000000007524c3 in read_signal_and_update (event=104, vc=0x2aade42ed9d0) at UnixNetVConnection.cc:138 #11 0x000000000075261e in read_signal_done (event=104, nh=0x2aac89a53ad0, vc=0x2aade42ed9d0) at UnixNetVConnection.cc:169 #12 0x0000000000754cd4 in UnixNetVConnection::readSignalDone (this=0x2aade42ed9d0, event=104, nh=0x2aac89a53ad0) at UnixNetVConnection.cc:922 #13 0x000000000073e088 in SSLNetVConnection::net_read_io (this=0x2aade42ed9d0, nh=0x2aac89a53ad0, lthread=0x2aac89a50010) at SSLNetVConnection.cc:596 #14 0x000000000074c50d in NetHandler::mainNetEvent (this=0x2aac89a53ad0, event=5, e=0x282fb30) at UnixNet.cc:399 #15 0x0000000000502eae in Continuation::handleEvent (this=0x2aac89a53ad0, event=5, data=0x282fb30) at ../iocore/eventsystem/I_Continuation.h:146 #16 0x0000000000773172 in EThread::process_event (this=0x2aac89a50010, e=0x282fb30, calling_code=5) at UnixEThread.cc:144 #17 0x000000000077367c in EThread::execute (this=0x2aac89a50010) at UnixEThread.cc:268 #18 0x000000000077272d in spawn_thread_internal (a=0x2e1b740) at Thread.cc:88 #19 0x00002aabd3d04851 in start_thread () from /lib64/libpthread.so.0 #20 0x0000003296ee890d in clone () from /lib64/libc.so.6
(gdb) frame 1 #1 0x0000000000750cfe in UnixNetProcessor::connect_re_internal (this=0x1032fc0, cont=0x2aad4590d080, target=0x2aad4590d728, opt=0x2aac8b367600) at UnixNetProcessor.cc:247 247 UnixNetProcessor.cc: No such file or directory. in UnixNetProcessor.cc (gdb) print mutex $28 = (ProxyMutex *) 0x2aadf004d070 (gdb) print *mutex $29 = {<RefCountObj> = {<ForceVFPTToTop> = {_vptr.ForceVFPTToTop = 0x77e890}, m_refcount = 16}, the_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}, thread_holding = 0x0, nthread_holding = 0} (gdb) print t $30 = (EThread *) 0x0 (gdb) print cont $31 = (Continuation *) 0x2aad4590d080 (gdb) print *cont $32 = {<force_VFPT_to_top> = {_vptr.force_VFPT_to_top = 0x7aaef0}, handler = (int (Continuation::*)(Continuation *, int, void *)) 0x5de4ce <HttpSM::main_handler(int, void*)>, mutex = { m_ptr = 0x2aadf004d070}, link = {<SLink<Continuation>> = {next = 0x0}, prev = 0x0}}