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https://issues.apache.org/jira/browse/DISPATCH-358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15322464#comment-15322464
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Ted Ross commented on DISPATCH-358:
-----------------------------------

I believe this may be an instance of PROTON-992, which is fixed in proton 0.13.
The issue has to do with thread safety in the way Proton uses Cyrus SASL.  
Crashes have been observed in cases where multiple connections are established 
concurrently.

> Intermittent crashes in qdrouterd under load from parallel senders
> ------------------------------------------------------------------
>
>                 Key: DISPATCH-358
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-358
>             Project: Qpid Dispatch
>          Issue Type: Bug
>          Components: Routing Engine
>    Affects Versions: 0.6.0
>         Environment: Debian 8.3, Apache Qpid Proton 0.12.2 for drivers and 
> dependencies, Hardware: 2 CPUs, 15 GB RAM, 60 GB HDD on 2 separate machines
>            Reporter: Vishal Sharda
>            Assignee: Ted Ross
>            Priority: Critical
>         Attachments: Crash_EXTERNAL.png, Crash_Java_Router_3.png, 
> Crash_Java_Send.png, Crash_Java_free_qd_connection.png, 
> Crash_Java_same_router.png, Crash_Java_same_router_another.png, 
> Crash_Java_same_router_another_bt.png, Crash_SASL.png, Crash_SASL_2.png, 
> Crash_SR_1.png, Crash_SR_2.png, Crash_bt_double_free_Java_RES_266MB.png, 
> Crash_double_free_Java_RES_266MB.png, Crash_free.png, 
> Crash_sasl_server_done.png, Crash_watch_qdstat.png, Overflow_Error.png
>
>
> In my setup of two inter-connected routers, several senders connecting to one 
> router while few receivers connecting to the other router, I see several 
> crashes in the router to which senders connect.  These crashes are 
> intermittent and happen once in every 10 runs or so.  I have collected the 
> backtraces of all the crashes but do not yet have a test case that can 
> reliably reproduce any of them.



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