RFR (S): JDK-8026154: [TESTBUG] runtime/CDSCompressedKPtrs/XShareAuto.java failed due to exception
mikhailo.seledtsov at oracle.com
Mon Mar 10 18:54:00 UTC 2014
Thank you for the review.
On 3/10/2014 11:41 AM, Christian Tornqvist wrote:
> Looks good! Thanks for fixing this.
> -----Original Message-----
> From: hotspot-runtime-dev-bounces at openjdk.java.net
> [mailto:hotspot-runtime-dev-bounces at openjdk.java.net] On Behalf Of Mikhailo
> Sent: Thursday, March 6, 2014 8:10 AM
> To: hotspot-runtime-dev
> Subject: RFR (S): JDK-8026154: [TESTBUG]
> runtime/CDSCompressedKPtrs/XShareAuto.java failed due to exception
> Please review this change that fixes several tests.
> The issues addressed by this change have similar root cause, hence I
> have consolidated them under the umbrella of JDK-8026154 and hope to submit
> them as one change set.
> In detail, these changes are introduced to cover situation where
> mapping of the shared (CDS) archive into memory fails. Such situation is a
> random occurance, and is most likely due
> to ASLR (Adress Space Layout Randomization). ASLR is a security
> feature managed by OS that randomizes the address where shared libraries are
> loaded; if the shared library is mapped
> into the space intended for the CDS archive, the mapping of the archive
> will fail. With this change, these tests take such situation into account.
> JBS: https://bugs.openjdk.java.net/browse/JDK-8026154
> Webrev: http://cr.openjdk.java.net/~mseledtsov/8026154/webrev.00/
> Exercises these tests on all standard platforms via JPRT -> PASS
> Local testing with number of iterations, especially on Windows
> where ASLR
> seems to be more aggressive
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