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src/os_cpu/linux_ppc/vm/os_linux_ppc.cpp
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rev 12363 : 8169373: Work around linux NPTL stack guard error.
Summary: Also skip libc guard page for compiler thread, merge similar code on linux platforms, and streamline libc guard page handling on linuxs390, linuxppc, aixppc.
Reviewed-by: dholmes, dcubed
rev 12364 : [mq]: compilerGuardFix.patch
@@ -533,19 +533,19 @@
}
////////////////////////////////////////////////////////////////////////////////
// thread stack
-// These sizes exclude libc stack guard pages, but include
-// the HotSpot guard pages.
-size_t os::Posix::_compiler_thread_min_stack_allowed = 384 * K;
-size_t os::Posix::_java_thread_min_stack_allowed = 384 * K;
-size_t os::Posix::_vm_internal_thread_min_stack_allowed = 128 * K;
+// Minimum usable stack sizes required to get to user code. Space for
+// HotSpot guard pages is added later.
+size_t os::Posix::_compiler_thread_min_stack_allowed = 64 * K;
+size_t os::Posix::_java_thread_min_stack_allowed = 64 * K;
+size_t os::Posix::_vm_internal_thread_min_stack_allowed = 64 * K;
-// return default stack size for thr_type
+// 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)
+ // Default stack size (compiler thread needs larger stack).
size_t s = (thr_type == os::compiler_thread ? 4 * M : 1024 * K);
return s;
}
/////////////////////////////////////////////////////////////////////////////
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