JDK11/arm32 builds are hanging on javac near start of build (strace/JDK10 issue?)

[sxa]

Thank you for reporting a broken build! Please fill in the following details:

• Jenkins link to the failing log: https://ci.adoptium.net/job/build-scripts/job/jobs/job/release/job/jobs/job/jdk11u/job/jdk11u-release-linux-arm-temurin/19/console
• Which platforms (OS+arch) are affected?: Linux/arm32
• If you look at the historic logs, does the problem appear to be specific to one machine?: TBC
• Link to any upstream project bug report (e.g. OpenJ9/JBS): n/a

Builds are timing out after 8 hours. An attempt to build with JDK11 boot JDK at https://ci.adoptium.net/job/build-scripts/job/jobs/job/jdk11u/job/jdk11u-linux-arm-temurin/347/console appears to be progressing normally (albeit on the Ubuntu 22.04 machine instead of the 20.04 one from the release job linked above). Noting that https://ci.adoptium.net/job/build-scripts/job/jobs/job/release/job/jobs/job/jdk11u/job/jdk11u-release-linux-arm-temurin/20/console was run on the 22.04 machine and seemed to show the same hang (it was aborted 5 minutes into the part of the build that showed the problem). This is likely happening after the sbom-strace functionality was enabled in adoptium/ci-jenkins-pipelines#1065

[sxa]

Build tests:

• 347 - Listed above - strace, JDK11 boot, --with-jobs=4, Ubuntu 22.04 host
• 348 - strace, JDK10 boot, --with-jobs=4, Ubuntu 22.04 host
• 349 - strace, JDK11 boot, --with-jobs=4, Ubuntu 20.04 host
• 350 - strace, JDK10 boot, --with-jobs=1, Ubuntu 22.04 host

We have a couple of options here for the release:

• Disable --enable-sbom-strace on JDK11/arm32 only (Will result in the sbom potentially being less complete than the other Linux platforms, but I don't think it will be any different from the April release).
• Switch to using JDK11 to bootstrap this build (Should have no negative impact, but means it will be different from most of the other platforms)

I'm not sure I can think of anything else that would be practical.

FYI @smlambert

[jiekang]

Either option is fine in my opinion; whichever is the easiest to do maybe? Option 1 feels just a tad 'safer' to me if the SBOM is truly unchanged since the April release.