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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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