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src/os_cpu/linux_ppc/vm/os_linux_ppc.cpp
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rev 12283 : 8169373: Work around linux NPTL stack guard error.
Summary: Also streamline OS guard page handling on linuxs390, linuxppc, aixppc.
*** 533,543 ****
}
////////////////////////////////////////////////////////////////////////////////
// thread stack
! size_t os::Posix::_compiler_thread_min_stack_allowed = 128 * K;
size_t os::Posix::_java_thread_min_stack_allowed = 128 * K;
size_t os::Posix::_vm_internal_thread_min_stack_allowed = 128 * K;
// return default stack size for thr_type
size_t os::Posix::default_stack_size(os::ThreadType thr_type) {
--- 533,545 ----
}
////////////////////////////////////////////////////////////////////////////////
// thread stack
! // These sizes exclude OS stack guard pages, but include
! // the VM guard pages.
! size_t os::Posix::_compiler_thread_min_stack_allowed = 192 * K;
size_t os::Posix::_java_thread_min_stack_allowed = 128 * K;
size_t os::Posix::_vm_internal_thread_min_stack_allowed = 128 * K;
// return default stack size for thr_type
size_t os::Posix::default_stack_size(os::ThreadType thr_type) {
*** 545,555 ****
size_t s = (thr_type == os::compiler_thread ? 4 * M : 1024 * K);
return s;
}
size_t os::Linux::default_guard_size(os::ThreadType thr_type) {
! return 2 * page_size();
}
// Java thread:
//
// Low memory addresses
--- 547,559 ----
size_t s = (thr_type == os::compiler_thread ? 4 * M : 1024 * K);
return s;
}
size_t os::Linux::default_guard_size(os::ThreadType thr_type) {
! // Creating guard page is very expensive. Java thread has HotSpot
! // guard page, only enable glibc guard page for non-Java threads.
! return (thr_type == java_thread ? 0 : page_size());
}
// Java thread:
//
// Low memory addresses
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