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https://issues.apache.org/jira/browse/QPID-4790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13664415#comment-13664415
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Ken Giusti commented on QPID-4790:
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Root cause of this issue is actually a bug in the RHEL6 version I've been using:
https://bugzilla.redhat.com/show_bug.cgi?id=741897
The bug affects RHEL6.4 running on Xenon hardware. It can be worked-around by
blacklisting the "ioatdma" kernel module in /etc/modprobe.d/blacklist.conf
Given that the bug can cause rare but unpredictable corruption of data read
from a socket, I'd recommend implementing the work-around if you are using the
target hardware and software.
Resolving this as it is not a bug in the qpid code.
> CI test failure:
> queue_flow_limit_tests.QueueFlowLimitTests.test_blocked_queue_delete ....fail
> ----------------------------------------------------------------------------------------------
>
> Key: QPID-4790
> URL: https://issues.apache.org/jira/browse/QPID-4790
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker, Python Client
> Affects Versions: 0.22
> Reporter: Ken Giusti
> Assignee: Ken Giusti
>
> Occasional failure seen for above test. Hard to reproduce.
> Additional details:
> 1) Failure occurs when test attempts to delete a queue that has messages on
> it, and a producer that is blocked by flow control.
> 2) The broker log trace shows that the queue.delete message is received. The
> queue is deleted and all messages released. The delete command is completed
> and the session.completed response is sent.
> 3) The python client library (used by the test) receives the
> session.completed frame. However, when the test fails the frame appears to
> be corrupted - it is completely zeroed.
> I've determined (3) by dumping the data as it is read from the socket by the
> python client library.
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