RFR(s) (JDK10): 8166944: Hanging Error Reporting steps may lead to torn error logs.

[Thomas Stüfe]

Dear all,

please review (or re-review) this enhancement. It was already reviewed
extensively for JDK9 in Oct 16, but pushed back to JDK10. Now that JDK10
repo is open, I would like to close this issue.

In short, this enhancement lets the hotspot cancel hanging error reporting
steps (when writing the hs-err file), in order to allow subsequent error
reporting steps to run. In our JVM variant, this has been active for a long
time and has proven to make error reporting more stable in the face of
deadlocks or file system stalls.

Issue:
https://bugs.openjdk.java.net/browse/JDK-8166944

Webrev:
http://cr.openjdk.java.net/~stuefe/webrevs/8166944-Hanging-Error-Reporting/jdk10-webrev.02/webrev/

Old Diskussion for JDK9:
http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2016-October/021582.html

The webrev is unchanged from version 2 discussed in october, just got
rebased atop of JDK10/hs.

Thank you,

Kind Regards, Thomas