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8161079: Default heap size causes native memory exhaustion on 32 bit Windows

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Reviewed-by: tschatzl, sjohanss
This commit is contained in:
Mikael Gerdin 2016-09-02 16:45:16 +02:00
parent 37b36db885
commit 50fb03349c
1 changed files with 5 additions and 0 deletions
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5
hotspot/src/os/windows/vm/os_windows.cpp
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@ -3796,6 +3796,11 @@ void os::win32::initialize_system_info() {
GlobalMemoryStatusEx(&ms); GlobalMemoryStatusEx(&ms);
_physical_memory = ms.ullTotalPhys; _physical_memory = ms.ullTotalPhys;
if (FLAG_IS_DEFAULT(MaxRAM)) {
// Adjust MaxRAM according to the maximum virtual address space available.
FLAG_SET_DEFAULT(MaxRAM, MIN2(MaxRAM, (uint64_t) ms.ullTotalVirtual));
}
OSVERSIONINFOEX oi; OSVERSIONINFOEX oi;
oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
GetVersionEx((OSVERSIONINFO*)&oi); GetVersionEx((OSVERSIONINFO*)&oi);