<div dir="ltr"><div><div>I've run Herman's experiment-scripts works with the latest branch(93ff7fd26181f2e9544613fa7658ef75b693f681) over 6 hours. It works fine now. I'll start compiling this branch on ARM tomorrow.<br><br></div>Thanks,<br><br></div>Namhoon <br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 4, 2015 at 2:51 AM, Björn Brandenburg <span dir="ltr"><<a href="mailto:bbb@mpi-sws.org" target="_blank">bbb@mpi-sws.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><span class=""><br><div><blockquote type="cite"><div>On 28 Jul 2015, at 22:51, Björn Brandenburg <<a href="mailto:bbb@mpi-sws.org" target="_blank">bbb@mpi-sws.org</a>> wrote:</div><br><div><div style="font-family:Helvetica;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><blockquote type="cite"><div><br>On 28 Jul 2015, at 19:38, Björn Brandenburg <<a href="mailto:bbb@mpi-sws.org" target="_blank">bbb@mpi-sws.org</a>> wrote:</div><br><div><blockquote type="cite" style="font-family:Menlo-Regular;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><br>On 27 Jul 2015, at 18:00, Björn Brandenburg <<a href="mailto:bbb@mpi-sws.org" target="_blank">bbb@mpi-sws.org</a>> wrote:<br><br>On 21 Jul 2015, at 19:08, Björn Brandenburg <<a href="mailto:bbb@mpi-sws.org" target="_blank">bbb@mpi-sws.org</a>> wrote:<br><blockquote type="cite"><br><br><blockquote type="cite">On 20 Jul 2015, at 19:16, Björn Brandenburg <<a href="mailto:bbb@mpi-sws.org" target="_blank">bbb@mpi-sws.org</a>> wrote:<br><br>However, there are also some known problem:<br><br>1) When switching to the PFAIR plugin, there’s sometimes a deadlock (+ report from lockdep). Probably some minor fix to adjust to code churn, but this needs to be investigated.<span> </span><br><br>2) Budget enforcement is broken: self-suspending tasks + strict budget enforcement causes BUG_ON violations. This also needs further investigation.<br></blockquote><br>These should both be fixed now. At the moment, the next branch seems to be quite stable in Qemu. Please test with your setups.<br></blockquote><br>I’ve pushed a couple more fixes today. The liblitmus test suite has also seen a couple of improvements.<br></blockquote><br style="font-family:Menlo-Regular;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="font-family:Menlo-Regular;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">Another bunch of patches. One of them fixes the preemption state machine, which in turn has uncovered a bug in the SRP implementation due to the Linux scheduler changes. The corresponding SRP tests are currently failing.</span><br style="font-family:Menlo-Regular;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"></div></blockquote></div><br style="font-family:Helvetica;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div style="font-family:Helvetica;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">Last update for now: I’ve pushed a few more patches that fix the SRP test failure and another race in PFAIR that happened rarely if a task resumed just before the end of a quantum in which it exhausted its current budget. The current version passes all tests and seems to run ok in both Qemu and on my 4-core x86 test machine. Further testing is very welcome, of course.</div></div></blockquote><br></div></span><div>I’ve pushed another significant update. This bunch includes a number of crash fixes, a fix for the trace infrastructure, and a simplification of the cache-topology relevant parts of LITMUS^RT.</div><div><br></div><div>This version seems to be quite stable on my test platforms. I’ll let it run stress tests for a few days, and if nothing else crops up, this will become the next release. I’d appreciate additional test reports, especially on ARM, which I can’t test at the moment.</div><div><br></div><div>Thanks,</div><div>Björn</div><div><br></div></div><br>_______________________________________________<br>
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