[jdk8u-dev] RFR: 8360869: jcstress is able to crash jdk8 on aarch64 with jfr on [v2]

[Jiří Vaněk]

> We are seeing rare crashes in jcstress with jdk8 on aarch64 with jfron. Those crashes are real, however we were not able to reproduce with builds on gcc 5 and up. The real culprint was not found. but gcc version on aarch64 should be checked.  Ideal version seems 7, but I'm not that bold.
> 
> I think this change must be accompanied by regenerating  `generated-configure` but am not sure with process on it.

Jiří Vaněk has updated the pull request incrementally with one additional commit since the last revision:

  Moved compiler version result to earlier stage

-------------

Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/697/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/697/files/1a23a459..dc7efed9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=697&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=697&range=00-01

  Stats: 3 lines in 1 file changed: 1 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/697.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/697/head:pull/697

PR: https://git.openjdk.org/jdk8u-dev/pull/697