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7087583: Hotspot fails to allocate heap with mmap(MAP_HUGETLB)

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Try using small pages when transparent huge pages allocation fails

Reviewed-by: ysr
This commit is contained in:
Igor Veresov 2011-09-06 21:03:51 -07:00
parent 4a09997f51
commit a9cd50a1c8
1 changed files with 6 additions and 2 deletions
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8
hotspot/src/os/linux/vm/os_linux.cpp
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@ -2531,10 +2531,14 @@ bool os::commit_memory(char* addr, size_t size, size_t alignment_hint,
} }
return true; return true;
} }
return false; // Fall through and try to use small pages
} }
return commit_memory(addr, size, exec); if (commit_memory(addr, size, exec)) {
realign_memory(addr, size, alignment_hint);
return true;
}
return false;
} }
void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) {