<html><body><p>I think the root problem is that some of the dispatch tests, including this one, are trying to test that timers/events happen within a "reasonable" interval of time from when they are supposed to. If deadlines are missed too badly, then the test is marked as failing.<br><br>If we completely disabled all such tests, we run the risk of breaking the timer/event subsystem of libdispatch and not noticing.<br><br>However, on the CI system there is unpredictable load, so "reasonable" is hard to specify and with some probability, deadlines will be missed no matter how loosely they are set.<br><br>If this test is failing frequently and the infrastructure does not support rerunning or ignoring a flagged "flakey" test then disabling it is probably the expedient option.<br><br>Probably what we need to do is strip down to (1) a very reliable subset of the dispatch tests that are run on most CI jobs and a (2) more comprehensive set of tests that is run in a separate job just for libdispatch testing. Job (2) can afford to include tests with low probability failures because only the dispatch team would need to pay attention to them and decide if they were real failures or not. Is something like this possible to set up?<br><br>--dave<br><br><img width="16" height="16" src="cid:1__=0ABB0ACCDFF1B1ED8f9e8a93df938690918c0AB@" border="0" alt="Inactive hide details for Doug Coleman via swift-corelibs-dev ---11/02/2016 01:48:39 PM---It has also been reported as a dup he"><font color="#424282">Doug Coleman via swift-corelibs-dev ---11/02/2016 01:48:39 PM---It has also been reported as a dup here: <a href="https://bugs.swift.org/browse/SR-3110">https://bugs.swift.org/browse/SR-3110</a> It’s important that w</font><br><br><font size="2" color="#5F5F5F">From: </font><font size="2">Doug Coleman via swift-corelibs-dev <swift-corelibs-dev@swift.org></font><br><font size="2" color="#5F5F5F">To: </font><font size="2">Jordan Rose <jordan_rose@apple.com></font><br><font size="2" color="#5F5F5F">Cc: </font><font size="2">swift-dev <swift-dev@swift.org>, swift-corelibs-dev <swift-corelibs-dev@swift.org></font><br><font size="2" color="#5F5F5F">Date: </font><font size="2">11/02/2016 01:48 PM</font><br><font size="2" color="#5F5F5F">Subject: </font><font size="2">Re: [swift-corelibs-dev] [swift-dev] [Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 15.10 (master) #8568</font><br><font size="2" color="#5F5F5F">Sent by: </font><font size="2">swift-corelibs-dev-bounces@swift.org</font><br><hr width="100%" size="2" align="left" noshade style="color:#8091A5; "><br><br><br><font size="4">It has also been reported as a dup here: </font><a href="https://bugs.swift.org/browse/SR-3110"><u><font size="4" color="#0000FF">https://bugs.swift.org/browse/SR-3110</font></u></a><br><br><font size="4">It’s important that we fix this one so we stop wasting five minutes of many peoples’ time several times a day.</font><br><br><font size="4">Maybe we should disable it until it’s fixed?</font><br>
<ul><ul><font size="4">On Nov 2, 2016, at 10:46 AM, Jordan Rose <</font><a href="mailto:jordan_rose@apple.com"><u><font size="4" color="#0000FF">jordan_rose@apple.com</font></u></a><font size="4">> wrote:</font><br><br><font size="4">Adding swift-corelibs-dev, since that’s where the Dispatch folks hang out.</font><br>
<ul><ul><font size="4">On Nov 2, 2016, at 10:44, Doug Coleman via swift-dev <</font><a href="mailto:swift-dev@swift.org"><u><font size="4" color="#0000FF">swift-dev@swift.org</font></u></a><font size="4">> wrote:</font><br><br><a href="https://bugs.swift.org/browse/SR-2931"><u><font size="4" color="#0000FF">https://bugs.swift.org/browse/SR-2931</font></u></a><br><br>
<ul><ul><font size="4">On Nov 2, 2016, at 10:43 AM, </font><a href="mailto:no-reply@swift.org"><u><font size="4" color="#0000FF">no-reply@swift.org</font></u></a><font size="4"> wrote:</font><br><br><b><font size="7" color="#393939" face="Helvetica Neue">[</font></b><b><font size="7" color="#FF0000" face="Helvetica Neue">FAILURE</font></b><b><font size="7" color="#393939" face="Helvetica Neue">] oss-swift-incremental-RA-linux-ubuntu-15_10 [#8568]</font></b><table border="0" cellspacing="0" cellpadding="0"><tr valign="top"><td width="78" valign="middle"><div align="center"><b><font size="2" color="#393939" face="Helvetica Neue">Build URL:</font></b></div></td><td width="369" valign="middle"><a href="https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-15_10/8568/"><font size="2" color="#007AFF" face="Helvetica Neue">https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-15_10/8568/</font></a></td></tr>
<tr valign="top"><td width="78" valign="middle"><div align="center"><b><font size="2" color="#393939" face="Helvetica Neue">Project:</font></b></div></td><td width="369" valign="middle"><font size="2" color="#393939" face="Helvetica Neue">oss-swift-incremental-RA-linux-ubuntu-15_10</font></td></tr>
<tr valign="top"><td width="78" valign="middle"><div align="center"><b><font size="2" color="#393939" face="Helvetica Neue">Date of build:</font></b></div></td><td width="369" valign="middle"><font size="2" color="#393939" face="Helvetica Neue">Wed, 02 Nov 2016 10:17:41 -0700</font></td></tr>
<tr valign="top"><td width="78" valign="middle"><div align="center"><b><font size="2" color="#393939" face="Helvetica Neue">Build duration:</font></b></div></td><td width="369" valign="middle"><font size="2" color="#393939" face="Helvetica Neue">25 min</font></td></tr></table><b><font size="6" color="#393939" face="Helvetica Neue">Tests:</font></b><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr valign="top"><td class="bg1" width="100%" valign="middle"><img width="1" height="1" src="cid:2__=0ABB0ACCDFF1B1ED8f9e8a93df938690918c0AB@" border="0" alt=""></td></tr>
<tr valign="top"><td class="bg2" width="100%" valign="middle"><font size="2" color="#393939" face="Helvetica Neue">Name: </font><b><font size="2" color="#393939" face="Helvetica Neue">Swift(linux-x86_64)</font></b><font size="2" color="#393939" face="Helvetica Neue"><br>Failed: 0 test(s), Passed: 8487 test(s), Total: 8487 test(s)</font></td></tr>
<tr valign="top"><td width="100%" valign="middle"><img width="1" height="1" src="cid:2__=0ABB0ACCDFF1B1ED8f9e8a93df938690918c0AB@" border="0" alt=""></td></tr>
<tr valign="top"><td class="bg2" width="100%" valign="middle"><font size="2" color="#393939" face="Helvetica Neue">Name: </font><b><font size="2" color="#393939" face="Helvetica Neue">Swift-Unit</font></b><font size="2" color="#393939" face="Helvetica Neue"><br>Failed: 0 test(s), Passed: 299 test(s), Total: 299 test(s)</font></td></tr>
<tr valign="top"><td width="100%" valign="middle"><img width="1" height="1" src="cid:2__=0ABB0ACCDFF1B1ED8f9e8a93df938690918c0AB@" border="0" alt=""></td></tr></table><b><font size="6" color="#393939" face="Helvetica Neue">Changes</font></b><ul><ul type="disc"><li><font size="2" color="#393939" face="Helvetica Neue">Commit </font><b><font size="2" color="#393939" face="Helvetica Neue">3575ee1954ea68f3d569c1f4481ca850d9fe87a3</font></b><font size="2" color="#393939" face="Helvetica Neue"> by </font><b><font size="2" color="#393939" face="Helvetica Neue">practicalswift:</font></b><p><font size="2" color="#393939">[swiftc (94 vs. 5180)] Add crasher in ?</font><ul><ul type="disc"><li><b><font size="2" color="#393939" face="Helvetica Neue">add</font></b><font size="2" color="#393939" face="Helvetica Neue">: validation-test/compiler_crashers/28463-child-source-range-not-contained-within-its-parent-guard-stmt.swift</font></ul></ul></ul></ul></ul></ul><br><font size="4">_______________________________________________<br>swift-dev mailing list</font><u><font size="4" color="#0000FF"><br></font></u><a href="mailto:swift-dev@swift.org"><u><font size="4" color="#0000FF">swift-dev@swift.org</font></u></a><u><font size="4" color="#0000FF"><br></font></u><a href="https://lists.swift.org/mailman/listinfo/swift-dev"><u><font size="4" color="#0000FF">https://lists.swift.org/mailman/listinfo/swift-dev</font></u></a></ul></ul></ul></ul><tt>_______________________________________________<br>swift-corelibs-dev mailing list<br>swift-corelibs-dev@swift.org<br></tt><tt><a href="https://lists.swift.org/mailman/listinfo/swift-corelibs-dev">https://lists.swift.org/mailman/listinfo/swift-corelibs-dev</a></tt><tt><br></tt><br><br><BR>
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