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Posted to dev@qpid.apache.org by "Alan Conway (JIRA)" <ji...@apache.org> on 2014/12/16 16:33:13 UTC
[jira] [Resolved] (DISPATCH-87) Double load of libqpid-dispatch.so
[ https://issues.apache.org/jira/browse/DISPATCH-87?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Conway resolved DISPATCH-87.
---------------------------------
Resolution: Fixed
> Double load of libqpid-dispatch.so
> ----------------------------------
>
> Key: DISPATCH-87
> URL: https://issues.apache.org/jira/browse/DISPATCH-87
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Management Agent, Router Node
> Affects Versions: 0.2
> Reporter: Alan Conway
> Assignee: Alan Conway
> Fix For: 0.3
>
>
> qdrouterd can load the libqpid-dispatch.so twice - once by the executable, again via ctypes. ctypes is supposed to be using the same copy of the library that is loaded by the exe but for some reason is not.
> This has been observed to cause crashes, but even when it doesn't it can be observed as follows:
> {noformat}$ LD_DEBUG=files router/qdrouterd |& grep libqpid-dispatch
> 18591: file=libqpid-dispatch.so.0 [0]; needed by router/qdrouterd [0]
> 18591: file=libqpid-dispatch.so.0 [0]; generating link map
> 18591: calling init: /home/aconway/dispatch/debug/src/libqpid-dispatch.so.0
> 18591: file=/usr/local/lib64/libqpid-dispatch.so.0 [0]; dynamically loaded by /usr/lib64/python2.7/lib-dynload/_ctypes.so [0]
> 18591: file=/usr/local/lib64/libqpid-dispatch.so.0 [0]; generating link map
> 18591: calling init: /usr/local/lib64/libqpid-dispatch.so.0
> 18591: opening file=/usr/local/lib64/libqpid-dispatch.so.0 [0]; direct_opencount=1
> {noformat}
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