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<p class="MsoNormal">Hi Joel,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I just now noticed this detailed analysis from you on the issue recently brought up by Aurelian as well, thank you so much.
<o:p></o:p></p>
<p class="MsoNormal">Sorry I was not watching panama-dev closely and missed this altogether.
<o:p></o:p></p>
<p class="MsoNormal">I have added a link to your analysis in the bug report (<a href="https://bugs.openjdk.org/browse/JDK-8321215">https://bugs.openjdk.org/browse/JDK-8321215</a>).<o:p></o:p></p>
<p class="MsoNormal">Also, the corresponding pull request is at (<a href="https://github.com/openjdk/jdk/pull/16957">https://github.com/openjdk/jdk/pull/16957</a>).
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best Regards,<o:p></o:p></p>
<p class="MsoNormal">Sandhya<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> panama-dev <panama-dev-retn@openjdk.org> <b>On Behalf Of
</b>Joel Knighton<br>
<b>Sent:</b> Thursday, November 30, 2023 4:10 PM<br>
<b>To:</b> Paul Sandoz <paul.sandoz@oracle.com>; panama-dev@openjdk.org<br>
<b>Subject:</b> Re: Guidance regarding reporting a bug probably related with VectorAPI<o:p></o:p></p>
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<p class="MsoNormal">This appears to be the same issue I reported in an earlier thread:
<a href="https://mail.openjdk.org/pipermail/panama-dev/2023-October/020072.html">
https://mail.openjdk.org/pipermail/panama-dev/2023-October/020072.html</a>. I can reproduce on an AVX-512 machine with hsdis, and the crash is at an indexed load.<o:p></o:p></p>
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<p class="MsoNormal">Best,<o:p></o:p></p>
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<p class="MsoNormal">Joel<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Thu, Nov 30, 2023 at 5:28 PM Paul Sandoz <<a href="mailto:paul.sandoz@oracle.com" target="_blank">paul.sandoz@oracle.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Thanks. Based on the CPU flags I think we need to attempt to reproduce on an AVX-512 system.<br>
<br>
Paul.<br>
<br>
> On Nov 30, 2023, at 3:12 PM, Aurelian Tutuianu <<a href="mailto:padreati@yahoo.com" target="_blank">padreati@yahoo.com</a>> wrote:<br>
> <br>
> Hi Paul, <br>
> <br>
> Thank you for looking into it. This is what is shown when I run the code on my machine:<br>
> <br>
> #<br>
> # A fatal error has been detected by the Java Runtime Environment:<br>
> #<br>
> # SIGSEGV (0xb) at pc=0x00007f89e053bcac, pid=398556, tid=398558<br>
> #<br>
> # JRE version: OpenJDK Runtime Environment (21.0.1+12) (build 21.0.1+12-29)<br>
> # Java VM: OpenJDK 64-Bit Server VM (21.0.1+12-29, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)<br>
> # Problematic frame:<br>
> # J 1119 c2 bugs.VectorTest.vdotVectorizedFailure([DII[DIIII)D <a href="mailto:rapaio.experiment@6.0.0">
rapaio.experiment@6.0.0</a> (273 bytes) @ 0x00007f89e053bcac [0x00007f89e053b980+0x000000000000032c]<br>
> #<br>
> # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again<br>
> #<br>
> # An error report file with more information is saved as:<br>
> # /home/ati/work/rapaio/hs_err_pid398556.log<br>
> [4.582s][warning][os] Loading hsdis library failed<br>
> #<br>
> # If you would like to submit a bug report, please visit:<br>
> # <a href="https://urldefense.com/v3/__https:/bugreport.java.com/bugreport/crash.jsp__;!!PbtH5S7Ebw!ffQA4oWz3uhNP7-Kx1ueAVxl9AMrQePX7u7dWdrEkjZEbUKcVuUQLBPa2aszsFwDHQQqS_x70iEHruTcTokBVx3CAA$" target="_blank">https://urldefense.com/v3/__https://bugreport.java.com/bugreport/crash.jsp__;!!PbtH5S7Ebw!ffQA4oWz3uhNP7-Kx1ueAVxl9AMrQePX7u7dWdrEkjZEbUKcVuUQLBPa2aszsFwDHQQqS_x70iEHruTcTokBVx3CAA$</a>
<br>
> #<br>
> <br>
> The Hotspot error file can be found at the following link: <a href="https://gist.github.com/padreati/a0170291023640c013a9b9733478245b" target="_blank">
https://gist.github.com/padreati/a0170291023640c013a9b9733478245b</a><br>
> I didn't test it with other JVM versions than 21.0.1 and the Ubuntu machine that I have.<br>
> <br>
> Thank you again,<br>
> Aurelian<br>
> <br>
> <br>
> <o:p></o:p></p>
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