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

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Reviewed-by: mdoerr, chagedorn
This commit is contained in:
David Briemann 2025-12-10 10:21:42 +00:00
parent b60ac710be
commit 8eaeb6990b
1 changed files with 4 additions and 10 deletions
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14
src/hotspot/share/code/codeCache.cpp
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@ -227,11 +227,6 @@ void CodeCache::initialize_heaps() {
if (!non_nmethod.set) {
non_nmethod.size += compiler_buffer_size;
// Further down, just before FLAG_SET_ERGO(), all segment sizes are
// aligned down to the next lower multiple of min_size. For large page
// sizes, this may result in (non_nmethod.size == 0) which is not acceptable.
// Therefore, force non_nmethod.size to at least min_size.
non_nmethod.size = MAX2(non_nmethod.size, min_size);
}
if (!profiled.set && !non_profiled.set) {
@ -307,11 +302,10 @@ void CodeCache::initialize_heaps() {
// Note: if large page support is enabled, min_size is at least the large
// page size. This ensures that the code cache is covered by large pages.
non_profiled.size += non_nmethod.size & alignment_mask(min_size);
non_profiled.size += profiled.size & alignment_mask(min_size);
non_nmethod.size = align_down(non_nmethod.size, min_size);
profiled.size = align_down(profiled.size, min_size);
non_profiled.size = align_down(non_profiled.size, min_size);
non_nmethod.size = align_up(non_nmethod.size, min_size);
profiled.size = align_up(profiled.size, min_size);
non_profiled.size = align_up(non_profiled.size, min_size);
cache_size = non_nmethod.size + profiled.size + non_profiled.size;
FLAG_SET_ERGO(NonNMethodCodeHeapSize, non_nmethod.size);
FLAG_SET_ERGO(ProfiledCodeHeapSize, profiled.size);