RFR(xxs): 8214229: Enable ShowRegistersOnAssert by default

[Thomas Stüfe]

Thank you Coleen.

For now I like to keep it switchable, just in case something goes
wrong. Note that "something going wrong" means, worst case, that an
assertion is hidden by a false segfault when accessing the assertion
poison page.

Still, I do not want to get chased by annoyed VM developers :) so for
now I rather leave the switch in.

Thanks, Thomas

On Wed, Nov 28, 2018 at 1:08 AM <coleen.phillimore at oracle.com> wrote:
>
>
> This seems fine with me.  Maybe we'll decide that this doesn't need to
> be an option in the future.
> Thanks,
> Coleen
>
> On 11/22/18 6:21 AM, Thomas Stüfe wrote:
> > Hi,
> >
> > 8191101 (Show register content in hs-err file on assert) added a small
> > facility which would show register content in hs-err files at the
> > point where asserts/guarantees happened.
> >
> > This feature has been very useful to us, and since its inception has
> > been enabled by default in our nightlies without problems showing up.
> > So we would like to enable this feature by default .
> >
> > Please note that this feature is stubbed out on Non-Linux platforms so
> > this only affects Linux.
> >
> > Bug: https://bugs.openjdk.java.net/browse/JDK-8214229
> > cr: http://cr.openjdk.java.net/~stuefe/webrevs/8214229-enable-ShowRegistersOnAssert-by-default/webrev.00/webrev/
> >
> > Thank you,
> >
> > Thomas
>