[GitHub] [trafficserver] bneradt commented on pull request #8698: Remove intermediate buffer in PluginVC

[GitBox <gi...@apache.org>]

bneradt commented on pull request #8698:
URL: https://github.com/apache/trafficserver/pull/8698#issuecomment-1074365699


   In case it's helpful, I reproduced this locally on my Mac using rockylinux:8 like so:
   
   ```
   docker pull controller.trafficserver.org/ats/rockylinux:8
   docker run --name test_serris_patch -it controller.trafficserver.org/ats/rockylinux:8 /bin/bash
   
   # Now, from within the running container.
   cd /var/tmp
   git clone https://github.com/serrislew/trafficserver.git
   cd trafficserver/
   git checkout pluginvc_opt
   source /opt/rh/gcc-toolset-11/enable
   autoreconf -fiv
   ./configure --with-openssl=/opt/openssl-quic --enable-experimental-plugins --enable-example-plugins --prefix=/tmp/ats/ --enable-werror --enable-debug --enable-luajit --enable-ccache
   make -j4 V=1 Q=
   make install
   /tmp/ats/bin/traffic_server -K -k -R 1
   
   ```
   
   That triggered this PluginVC assertion:
   
   ```
   REGRESSION TEST PVC started
   [SDK_API_TSContSchedule] TSContScheduleOnPool : [TestCase1] <<PASS>> { ok }
   [SDK_API_TSContDataGet] TSContDataSet : [TestCase1] <<PASS>> { ok }
   [SDK_API_TSContDataGet] TSContDataGet : [TestCase1] <<PASS>> { ok }
   [SDK_API_TSActionCancel] TSActionCancel : [TestCase1] <<PASS>> { ok }
   Fatal: PluginVC.cc:310: failed assertion `!closed`
   [Mar 21 20:06:23.089] traffic_crashlo NOTE: crashlog started, target=59214, debug=false syslog=true, uid=65534 euid=0
   [Mar 21 20:06:23.090] traffic_crashlo WARNING: failed to initialize management API: [5] Error establishing socket connection.
   [Mar 21 20:06:23.090] traffic_crashlo NOTE: logging to 0x2365e60
   [Mar 21 20:06:23.090] traffic_crashlo NOTE: readlink failed with Permission denied
   [Mar 21 20:06:23.092] traffic_crashlo ERROR: wrote crash log to /tmp/ats/var/log/trafficserver/crash-2022-03-21-200623.log
   traffic_server: received signal 6 (Aborted)
   traffic_server - STACK TRACE: 
   /tmp/ats/bin/traffic_server(_Z19crash_logger_invokeiP9siginfo_tPv+0xc3)[0x82079c]
   /lib64/libpthread.so.0(+0x12c20)[0x7f2e3e2c6c20]
   /lib64/libc.so.6(gsignal+0x10f)[0x7f2e3d3f337f]
   /lib64/libc.so.6(abort+0x127)[0x7f2e3d3dddb5]
   /tmp/ats//lib/libtscore.so.10(_Z11ink_warningPKcz+0x0)[0x7f2e3f8cb72c]
   /tmp/ats//lib/libtscore.so.10(_Z17ats_base64_encodePKhmPcmPm+0x0)[0x7f2e3f8c70b1]
   /tmp/ats/bin/traffic_server(_ZN8PluginVC8reenableEP3VIO+0x3d)[0xb15b7f]
   /tmp/ats/bin/traffic_server(_ZN3VIO8reenableEv+0x47)[0x825c7d]
   /tmp/ats/bin/traffic_server(_ZN8PluginVC18process_write_sideEv+0xc61)[0xb17273]
   /tmp/ats/bin/traffic_server(_ZN8PluginVC12main_handlerEiPv+0x66f)[0xb15515]
   /tmp/ats/bin/traffic_server(_ZN12Continuation11handleEventEiPv+0xdd)[0x825a81]
   /tmp/ats/bin/traffic_server(_ZN7EThread13process_eventEP5Eventi+0x157)[0xbfc17f]
   /tmp/ats/bin/traffic_server(_ZN7EThread13process_queueEP5QueueI5EventNS1_9Link_linkEEPiS5_+0xb2)[0xbfc384]
   /tmp/ats/bin/traffic_server(_ZN7EThread15execute_regularEv+0x2dc)[0xbfc746]
   /tmp/ats/bin/traffic_server(_ZN7EThread7executeEv+0x107)[0xbfca5d]
   /tmp/ats/bin/traffic_server[0xbfb234]
   /lib64/libpthread.so.0(+0x817a)[0x7f2e3e2bc17a]
   /lib64/libc.so.6(clone+0x43)[0x7f2e3d4b8dc3]
   Aborted
   ```


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