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https://issues.apache.org/jira/browse/TS-4732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15417566#comment-15417566
]
Bryan Call commented on TS-4732:
--------------------------------
Backtrace:
{code}
Breakpoint 1, UnixNetVConnection::do_io_read (this=0x61800003fc80, c=0x0,
nbytes=0, buf=0x0) at UnixNetVConnection.cc:627
627 Error("do_io_read invoked on closed vc %p, cont %p, nbytes %"
PRId64 ", buf %p", this, c, nbytes, buf);
#0 UnixNetVConnection::do_io_read (this=0x61800003fc80, c=0x0, nbytes=0,
buf=0x0) at UnixNetVConnection.cc:627
#1 0x00000000007796ac in Http2ClientSession::release_netvc
(this=0x61900009d880) at Http2ClientSession.h:188
#2 0x00000000005c6295 in ProxyClientSession::handle_api_return
(this=0x61900009d880, event=0) at ProxyClientSession.cc:186
#3 0x00000000005c5bff in ProxyClientSession::state_api_callout
(this=0x61900009d880, event=0, data=0x0) at ProxyClientSession.cc:131
#4 0x00000000005c5f13 in ProxyClientSession::do_api_callout
(this=0x61900009d880, id=TS_HTTP_SSN_CLOSE_HOOK) at ProxyClientSession.cc:157
#5 0x00000000007736b8 in Http2ClientSession::destroy (this=0x61900009d880) at
Http2ClientSession.cc:82
#6 0x00000000007829f2 in Http2ConnectionState::release_stream
(this=0x61900009dac8, stream=0x0) at Http2ConnectionState.cc:985
#7 0x00000000007810ab in Http2ConnectionState::main_event_handler
(this=0x61900009dac8, event=2252, edata=0x61900009d880) at
Http2ConnectionState.cc:802
#8 0x0000000000534e8d in Continuation::handleEvent (this=0x61900009dac8,
event=2252, data=0x61900009d880) at ../iocore/eventsystem/I_Continuation.h:153
#9 0x00000000007731f1 in send_connection_event (cont=0x61900009dac8,
event=2252, edata=0x61900009d880) at Http2ClientSession.cc:58
#10 0x0000000000775635 in Http2ClientSession::do_io_close (this=0x61900009d880,
alerrno=-1) at Http2ClientSession.cc:265
#11 0x0000000000775c71 in Http2ClientSession::main_event_handler
(this=0x61900009d880, event=105, edata=0x61800003fda0) at
Http2ClientSession.cc:316
#12 0x0000000000534e8d in Continuation::handleEvent (this=0x61900009d880,
event=105, data=0x61800003fda0) at ../iocore/eventsystem/I_Continuation.h:153
#13 0x0000000000a242c7 in read_signal_and_update (event=105, vc=0x61800003fc80)
at UnixNetVConnection.cc:153
#14 0x0000000000a2c124 in UnixNetVConnection::mainEvent (this=0x61800003fc80,
event=1, e=0x60900000cd70) at UnixNetVConnection.cc:1199
#15 0x0000000000534e8d in Continuation::handleEvent (this=0x61800003fc80,
event=1, data=0x60900000cd70) at ../iocore/eventsystem/I_Continuation.h:153
#16 0x0000000000a15455 in InactivityCop::check_inactivity (this=0x60600001a900,
event=2, e=0x60900000cd70) at UnixNet.cc:102
#17 0x0000000000534e8d in Continuation::handleEvent (this=0x60600001a900,
event=2, data=0x60900000cd70) at ../iocore/eventsystem/I_Continuation.h:153
#18 0x0000000000a6fe31 in EThread::process_event (this=0x2b09a602a800,
e=0x60900000cd70, calling_code=2) at UnixEThread.cc:148
#19 0x0000000000a70845 in EThread::execute (this=0x2b09a602a800) at
UnixEThread.cc:230
#20 0x0000000000a6e793 in spawn_thread_internal (a=0x6040000187d0) at
Thread.cc:84
#21 0x00002b09a120edc5 in start_thread (arg=0x2b09a68cd700) at
pthread_create.c:308
#22 0x00002b09a1f9fced in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113
{code}
> Still seeing VC errors on master
> --------------------------------
>
> Key: TS-4732
> URL: https://issues.apache.org/jira/browse/TS-4732
> Project: Traffic Server
> Issue Type: Bug
> Components: Network
> Affects Versions: 6.2.0
> Reporter: Bryan Call
> Assignee: Bryan Call
> Fix For: 7.0.0
>
>
> Seeing this in the error logs *a lot*:
> {code}
> [Jun 13 17:14:26.606] Server {0x2b1a9f010700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x634000c186a0, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:26.606] Server {0x2b1a9f010700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x634000c186a0, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:26.631] Server {0x2b1a9e3eb700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x634000c0f220, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:26.631] Server {0x2b1a9e3eb700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x634000c0f220, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:26.727] Server {0x2b1aa0433700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x634000c13240, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:26.727] Server {0x2b1aa0433700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x634000c13240, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:26.765] Server {0x2b1aa083a700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x6340002364e0, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:26.765] Server {0x2b1aa083a700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x6340002364e0, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:26.914] Server {0x2b1a9e7f2700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x63400088c2e0, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:26.914] Server {0x2b1a9e7f2700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x63400088c2e0, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:26.938] Server {0x2b1a9e3eb700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x6340004f7fe0, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:26.938] Server {0x2b1a9e3eb700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x6340004f7fe0, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:27.004] Server {0x2b1aa3487700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x63400025a860, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:27.004] Server {0x2b1aa3487700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x63400025a860, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:27.048] Server {0x2b1aa144f700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x634000ad2820, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:27.048] Server {0x2b1aa144f700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x634000ad2820, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:27.248] Server {0x2b1a9dbdd700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x6340003fa1a0, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:27.248] Server {0x2b1a9dbdd700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x6340003fa1a0, cont (nil), nbytes 0, reader (nil)
> [Jun 13 17:14:27.388] Server {0x2b1aa3080700} ERROR:
> <UnixNetVConnection.cc:629 (do_io_read)> do_io_read invoked on closed vc
> 0x634000807f60, cont (nil), nbytes 0, buf (nil)
> [Jun 13 17:14:27.388] Server {0x2b1aa3080700} ERROR:
> <UnixNetVConnection.cc:653 (do_io_write)> do_io_write invoked on closed vc
> 0x634000807f60, cont (nil), nbytes 0, reader (nil)
> {code}
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