8372589: VM crashes on init when NonNMethodCodeHeapSize is set too small and UseTransparentHugePages is enabled

[dbriemann]

Aligning upwards instead of downwards not only solves the crash in large huge page scenarios but also ensures that the cache sizes are at least as big as they were set.

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed (2 reviews required, with at least 1 Reviewer, 1 Author)

Issue

• JDK-8372589: VM crashes on init when NonNMethodCodeHeapSize is set too small and UseTransparentHugePages is enabled (Bug - P4)

Reviewers

• Martin Doerr (@TheRealMDoerr - Reviewer)

Reviewing

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[bridgekeeper]

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[openjdk]

@dbriemann This change is no longer ready for integration - check the PR body for details.

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[mlbridge]

Webrevs

• 00: Full (346e7d4c)

[TheRealMDoerr]

This make sense. Please make sure to commit it when JDK27 is started in head and after a 2nd review.
/reviewers 2

[openjdk]

@TheRealMDoerr
The total number of required reviews for this PR (including the jcheck configuration and the last /reviewers command) is now set to 2 (with at least 1 Reviewer, 1 Author).