< prev index next >
src/os_cpu/linux_s390/vm/os_linux_s390.cpp
Print this page
rev 12307 : 8169373: Work around linux NPTL stack guard error.
Summary: Also streamline OS guard page handling on linuxs390, linuxppc, aixppc.
rev 12308 : imported patch new_os_guard_for_java_thread.patch
*** 471,485 ****
}
////////////////////////////////////////////////////////////////////////////////
// thread stack
! // These sizes exclude OS stack guard pages, but include
! // the VM guard pages.
! 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) {
// Default stack size (compiler thread needs larger stack).
size_t s = (thr_type == os::compiler_thread ? 4 * M : 1024 * K);
--- 471,485 ----
}
////////////////////////////////////////////////////////////////////////////////
// thread stack
! // Minimum usable stack sizes required to get to user code. Space for VM
! // guard pages is added later.
! size_t os::Posix::_compiler_thread_min_stack_allowed = (52 DEBUG_ONLY(+32)) * K;
! size_t os::Posix::_java_thread_min_stack_allowed = (32 DEBUG_ONLY(+8)) * K;
! size_t os::Posix::_vm_internal_thread_min_stack_allowed = 32 * K;
// Return default stack size for thr_type.
size_t os::Posix::default_stack_size(os::ThreadType thr_type) {
// Default stack size (compiler thread needs larger stack).
size_t s = (thr_type == os::compiler_thread ? 4 * M : 1024 * K);
*** 487,497 ****
}
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
--- 487,497 ----
}
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 || thr_type == os::compiler_thread) ? 0 : page_size());
}
// Java thread:
//
// Low memory addresses
< prev index next >