I'm try to fix the TVC double close bug with https://github.com/apache/trafficserver/pull/1765 .
But the PR#1765 does not fix it and makes new crash. The 2nd solution to fix the issue https://github.com/apache/trafficserver/pull/2907 . That's all about the bug. - oknet xu 发自我的 iPhone > 在 2018年6月29日，00:23，gksa...@gmail.com <gksa...@gmail.com> 写道： > > > >> On 2018/05/22 08:56:56, Chao Xu <ok...@apache.org> wrote: >> Hi salil, >> >> please try to apply >> https://github.com/apache/trafficserver/commit/49c903b0c13a2fd2c085325f6942326c4f9c926a >> . >> >> - Oknet >> >> 2018-05-14 22:03 GMT+08:00 salil GK <gksa...@gmail.com>: >> >>> Hello >>> >>> I am using ATS 6.2.2 and found a crash happening in >>> TransformVConnection::do_io_close:467. This looks like bug 1765. But >>> while looking at that bug - it looks like that defect is not resolved >>> completely. >>> >>> Stack trace from my machine is as follows >>> >>>>>> >>> >>> #1 0x00007f42727282a8 in _Unwind_Backtrace () from >>> /lib/x86_64/libgcc_s.so.1 >>> #2 0x00007f427245fa88 in backtrace () from /lib/x86_64/libc.so.6 >>> #3 0x00007f4274c9bd7f in ink_stack_trace_dump () at ink_stack_trace.cc:61 >>> #4 0x00007f4274c9e2f3 in signal_crash_handler (signo=11) at signals.cc:180 >>> #5 0x00005575fdf9f68a in crash_logger_invoke (signo=11, >>> info=0x7f427174e630, ctx=0x7f427174e500) at Crash.cc:169 >>> #6 <signal handler called> >>> #7 0x00000000000000b8 in ?? () >>> #8 0x00005575fdff8b5e in TransformVConnection::do_io_close >>> (this=0x5575ff57eb20, error=20600) at Transform.cc:467 >>> #9 0x00005575fe08d691 in HttpTunnel::chain_abort_all >>> (this=0x7f426a9d54e8, p=0x7f426a9d56e8) at HttpTunnel.cc:1444 >>> #10 0x00005575fe03761a in HttpSM::tunnel_handler_post_ua >>> (this=0x7f426a9d41b0, event=104, p=0x7f426a9d56e8) at HttpSM.cc:3505 >>> #11 0x00005575fe08cdeb in HttpTunnel::producer_handler >>> (this=0x7f426a9d54e8, event=104, p=0x7f426a9d56e8) at >>> HttpTunnel.cc:1240 >>> #12 0x00005575fe08dc3b in HttpTunnel::main_handler >>> (this=0x7f426a9d54e8, event=104, data=0x5575ff201e18) at >>> HttpTunnel.cc:1623 >>> #13 0x00005575fdfa282f in Continuation::handleEvent >>> (this=0x7f426a9d54e8, event=104, data=0x5575ff201e18) at >>> ../iocore/eventsystem/I_Continuation.h:153 >>> #14 0x00005575fe1f9a08 in read_signal_and_update (event=104, >>> vc=0x5575ff201d00) at UnixNetVConnection.cc:148 >>> #15 0x00005575fe1f9da1 in read_signal_done (event=104, >>> nh=0x7f4271858cd0, vc=0x5575ff201d00) at UnixNetVConnection.cc:209 >>> #16 0x00005575fe1fa61f in read_from_net (nh=0x7f4271858cd0, >>> vc=0x5575ff201d00, thread=0x7f4271855010) at UnixNetVConnection.cc:359 >>> #17 0x00005575fe1fc78a in UnixNetVConnection::net_read_io >>> (this=0x5575ff201d00, nh=0x7f4271858cd0, lthread=0x7f4271855010) at >>> UnixNetVConnection.cc:933 >>> #18 0x00005575fe1f0bc1 in NetHandler::mainNetEvent >>> (this=0x7f4271858cd0, event=5, e=0x5575ff06ec40) at UnixNet.cc:513 >>> #19 0x00005575fdfa282f in Continuation::handleEvent >>> (this=0x7f4271858cd0, event=5, data=0x5575ff06ec40) at >>> ../iocore/eventsystem/I_Continuation.h:153 >>> #20 0x00005575fe21fe1f in EThread::process_event (this=0x7f4271855010, >>> e=0x5575ff06ec40, calling_code=5) at UnixEThread.cc:148 >>> #21 0x00005575fe22037c in EThread::execute (this=0x7f4271855010) at >>> UnixEThread.cc:275 >>> #22 0x00005575fe21f312 in spawn_thread_internal (a=0x5575ff03ee10) at >>> Thread.cc:86 >>> #23 0x00007f4272ecb633 in start_thread (arg=0x7f4271753700) at >>> pthread_create.c:463 >>> #24 0x00007f427245198f in clone () from /lib/x86_64/libc.so.6 >>> >>> <<<<<< >>> >>> What can I do to handle this ... Can I apply the solution mentioned >>> in that bug in my 6.2.2 source. >>> >>> Thanks in advance >>> ~S >>> >> >> >> >> -- >> - Oknet Xu >> > > Do you have pointers on what circumstance, this issue could happen ?
