[jdk21u] RFR: 8312394: [linux] SIGSEGV if kernel was built without hugepage support

[Thomas Stuefe]

On Thu, 24 Aug 2023 06:24:57 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> Hi all,
> 
> This patch is one in a small line of preparatory patches that aim, ultimately, to fix https://bugs.openjdk.org/browse/JDK-8312182 ("THPs cause huge RSS due to thread start timing issue").
> 
> This particular patch fixes an issue where the JVM would crash on startup when started on a linux box with a kernel that does not support hugepages (mostly affected by this are small SBCs)

Tests clean, apart from riscv, which is an infrastructure issue. Got approval.

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PR Comment: https://git.openjdk.org/jdk21u/pull/97#issuecomment-1694174433