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https://issues.apache.org/jira/browse/DISPATCH-2094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17484245#comment-17484245
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Jiri Daněk commented on DISPATCH-2094:
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https://github.com/apache/qpid-dispatch/runs/4993345231?check_suite_focus=true#step:27:5602
first time on GHA
> System tests can freeze, observed especially on AArch64 or s390x
> ----------------------------------------------------------------
>
> Key: DISPATCH-2094
> URL: https://issues.apache.org/jira/browse/DISPATCH-2094
> Project: Qpid Dispatch
> Issue Type: Test
> Affects Versions: 1.16.0
> Reporter: Jiri Daněk
> Priority: Minor
> Fix For: 1.19.0
>
>
> Sometimes the system tests freeze. This is especially frequent on AArch64. It
> is possible this is caused by architecture-specific behavior regarding
> threading. AMD64 is strongly memory consistent, while AArch64 is not. Maybe
> some undefined behavior on AArch64 causes the races to be more serious than
> elsewhere.
> https://travis-ci.com/github/apache/qpid-dispatch/jobs/502066462#L9193
> {noformat}
> 64: test_05_no_settlement_same_interior
> (system_tests_stuck_deliveries.RouterTest) ... ok
> {noformat}
> https://travis-ci.com/github/apache/qpid-dispatch/jobs/502066461#L7611
> {noformat}
> 70: test_01_concurrent_requests
> (system_tests_http1_adaptor.Http1AdaptorEdge2EdgeTest)
> {noformat}
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