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https://issues.apache.org/jira/browse/PROTON-989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15031842#comment-15031842
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Ted Ross commented on PROTON-989:
---------------------------------
Dispatch has worked around this problem by using a mutex to serialize calls to
"pn_sasl()". The issue remains that if an application invokes pn_sasl() in
multiple threads concurrently, the library can crash.
This is probably worthy of a release note or a mention in the API docs.
> Multi-threaded creation of outgoing connections can crash inside the Cyrus
> SASL library
> ---------------------------------------------------------------------------------------
>
> Key: PROTON-989
> URL: https://issues.apache.org/jira/browse/PROTON-989
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c
> Affects Versions: 0.10
> Reporter: Ted Ross
> Priority: Critical
>
> Qpid Dispatch router can be configured to make multiple outgoing connections.
> This often results in a crash in the Cyrus sasl library.
> Using the tests/config-6/A.conf configuration file in Dispatch causes this
> problem. You don't need to run more than one Dispatch process.
> This configuration attempts to create three outgoing connections
> simultaneously in different threads. Apparently there's a thread-safety
> issue in Cyrus's sasl_client_init.
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