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From "Ganesh Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DISPATCH-855) Router crash when disconnecting from console
Date Fri, 20 Oct 2017 19:11:00 GMT

     [ https://issues.apache.org/jira/browse/DISPATCH-855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ganesh Murthy resolved DISPATCH-855.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.0.0

This issue cannot be reproduced in the 1.0.x or master branches.

> Router crash when disconnecting from console
> --------------------------------------------
>
>                 Key: DISPATCH-855
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-855
>             Project: Qpid Dispatch
>          Issue Type: Bug
>          Components: Container
>    Affects Versions: 0.8.0
>            Reporter: Ernest Allen
>             Fix For: 1.0.0
>
>
> The router will crash if it receives a connection from a console and then the console
disconnects.
> To reproduce:
> - dnf install qpid-dispatch-router
> - dnf install qpid-dispatch-tools
> - create a config file with an http listener named A.conf that contains:
> router {
>     mode: standalone
>     id: A
> }
> listener {
>     port: 5673
>     host: 0.0.0.0
>     http: true
>     saslMechanisms: ANONYMOUS
>     name: Console Listener
> }
> - start the router
> $ qdrouterd --config <path/to/>A.conf
> - connect a console: browse to localhost:5673
> - close the browser window
> - the router crashes
> Here is the output from the router:
> qdrouterd --config /usr/local/etc/qpid-dispatch/A.conf 
> 2017-10-10 13:37:20.279849 -0400 SERVER (info) Container Name: A
> 2017-10-10 13:37:20.279926 -0400 ROUTER (info) Router started in Standalone mode
> 2017-10-10 13:37:20.280273 -0400 ROUTER_CORE (info) Router Core thread running. 0/A
> 2017-10-10 13:37:20.280290 -0400 ROUTER_CORE (info) In-process subscription M/$management
> 2017-10-10 13:37:20.333194 -0400 AGENT (info) Activating management agent on $_management_internal
> 2017-10-10 13:37:20.333276 -0400 ROUTER_CORE (info) In-process subscription L/$management
> 2017-10-10 13:37:20.333310 -0400 ROUTER_CORE (info) In-process subscription L/$_management_internal
> 2017-10-10 13:37:20.333608 -0400 CONN_MGR (info) Configured Listener: localhost:5673
proto=any, role=normal, http
> 2017-10-10 13:37:20.333725 -0400 SERVER (info) HTTP server thread running
> 2017-10-10 13:37:20.333825 -0400 SERVER (notice) Listening for HTTP on localhost:5673
> 2017-10-10 13:37:20.336628 -0400 POLICY (info) Policy configured maxConnections: 65535,
policyDir: '', access rules enabled: 'false'
> 2017-10-10 13:37:20.341923 -0400 POLICY (info) Policy fallback defaultVhost is defined:
'$default'
> 2017-10-10 13:37:20.342088 -0400 SERVER (info) Operational, 4 Threads Running
> 2017-10-10 13:37:57.114258 -0400 CONTAINER (notice) Aborting link '68c3979a-9bdf-7e4e-b578-ecfcd8925acb'
due to parent connection end
> 2017-10-10 13:37:57.114304 -0400 CONTAINER (notice) Aborting link '5ec6b95c-3885-984e-995d-297f2841ca02'
due to parent connection end
> Segmentation fault (core dumped)
> Here is a backtrace:
> (gdb) bt
> #0  0x0000000000000010 in ?? ()
> #1  0x00007ffff79379fe in pn_class_decref (clazz=0x7fffe4019b60, 
>     clazz@entry=0x7ffff7b6ec00 <PN_OBJECT>, object=0x7fffe4019b40)
>     at /usr/src/debug/qpid-proton-0.17.0/proton-c/src/core/object/object.c:91
> #2  0x00007ffff7937c2f in pn_decref (object=<optimized out>)
>     at /usr/src/debug/qpid-proton-0.17.0/proton-c/src/core/object/object.c:253
> #3  0x00007ffff7944732 in pn_collector_free (collector=<optimized out>)
>     at /usr/src/debug/qpid-proton-0.17.0/proton-c/src/core/event.c:108
> #4  0x00007ffff7bb6bcc in qd_connection_free (ctx=0x7fffe400c290)
>     at /usr/src/debug/qpid-dispatch-0.8.0/src/server.c:169
> #5  0x00007ffff7bbaa21 in callback_amqpws (wsi=0x7fffe400a640, 
>     reason=<optimized out>, user=0x7fffe400a850, in=0x0, len=0)
>     at /usr/src/debug/qpid-dispatch-0.8.0/src/http-libwebsockets.c:496
> #6  0x00007ffff6cffe6c in lws_close_free_wsi (wsi=wsi@entry=0x7fffe400a640, 
>     reason=reason@entry=LWS_CLOSE_STATUS_NOSTATUS)
>     at /usr/src/debug/libwebsockets-2.1.1/lib/libwebsockets.c:518
> #7  0x00007ffff6d0179e in lws_service_fd_tsi (
>     context=context@entry=0x5555559e08d0, pollfd=<optimized out>, 
>     tsi=tsi@entry=0) at /usr/src/debug/libwebsockets-2.1.1/lib/service.c:1117
> #8  0x00007ffff6d0bc73 in lws_plat_service_tsi (context=0x5555559e08d0, 
>     timeout_ms=<optimized out>, tsi=tsi@entry=0)
>     at /usr/src/debug/libwebsockets-2.1.1/lib/lws-plat-unix.c:184
> #9  0x00007ffff6d0be47 in lws_plat_service (context=<optimized out>, 
>     timeout_ms=<optimized out>)
>     at /usr/src/debug/libwebsockets-2.1.1/lib/lws-plat-unix.c:204
> #10 0x00007ffff6d01d55 in lws_service (context=<optimized out>, 
>     timeout_ms=<optimized out>)
>     at /usr/src/debug/libwebsockets-2.1.1/lib/service.c:1139
> #11 0x00007ffff7bbb76c in http_thread_run (v=0x5555559f45f0)
>     at /usr/src/debug/qpid-dispatch-0.8.0/src/http-libwebsockets.c:536
> #12 0x00007ffff770e6ca in start_thread () from /lib64/libpthread.so.0
> #13 0x00007ffff6a39f7f in clone () from /lib64/libc.so.6
> Notes:
> $ rpm -qa | grep dispatch
> qpid-dispatch-debuginfo-0.8.0-2.fc25.x86_64
> qpid-dispatch-tools-0.8.0-2.fc25.x86_64
> qpid-dispatch-router-0.8.0-2.fc25.x86_64
> $ rpm -qa | grep proton
> python-qpid-proton-0.17.0-5.fc25.x86_64
> qpid-proton-c-0.17.0-5.fc25.x86_64
> qpid-proton-debuginfo-0.17.0-5.fc25.x86_64
> router was started from root account
> I can't reproduce from a source build, only from 0.8.0 packages



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