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Allocate all RAMClass memory segments using the Sub4G allocator on
pLinux to mitigate the memory regression introduced after RAMClass
segregation. This restores the previous behaviour where all RAMClass
segments were placed in Sub4G.

This change is a temporary workaround until the regression analysis
is complete and a proper fix is implemented.

Allocate all RAMClass memory segments using the Sub4G allocator on
pLinux to mitigate the memory regression introduced after RAMClass
segregation. This restores the previous behaviour where all RAMClass
segments were placed in Sub4G.

This change is a temporary workaround until the regression analysis
is complete and a proper fix is implemented.

Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
@tajila
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tajila commented Dec 12, 2025

LGTM

@babsingh
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jenkins test sanity amac,plinux jdk21

@babsingh babsingh marked this pull request as ready for review December 23, 2025 15:29
@babsingh babsingh requested a review from hangshao0 December 23, 2025 15:29
@babsingh
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PR builds look good. The only observed failure is #23128, which is known and unrelated.

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2 participants