RFR: 8265750: Fatal error in safepoint.cpp after backport of 8258414

Jaroslav Bachorík jaroslav.bachorik at datadoghq.com
Fri Apr 23 17:34:01 UTC 2021

On Fri, Apr 23, 2021 at 7:22 PM Severin Gehwolf <sgehwolf at redhat.com> wrote:
> On Fri, 2021-04-23 at 18:57 +0200, Jaroslav Bachorík wrote:
> > In 16 and 17 this crash is not happening.
> Why?

I assume because the safepoint assumptions are slightly different?
The fix for jdk head was pushed more than a month ago. The push was
done by Markus Gronlund and I assume he wouldn't have pushed that
without going through the whole shebang of Oracle internal test rigs.
The backport for 16u is identical to 17. All the affected code in JFR
is identical. Although there still might be a chance for error the
same test that failed in 11u did pass for 16 as a part of the
pre-commit GH actions.

AFAICT, the issue we are talking about was filed as a reaction to
failure observed in 11u. The adjustments for the differences between
JDK head and 11u are the most likely the cause of this failure. There
is no indication this should apply to any other version than 11u
unless I am missing something.



> Thanks,
> Severin

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