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src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp
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rev 12364 : imported patch compilerGuardFix.patch
@@ -84,23 +84,27 @@
# include <sys/procfs.h> // see comment in <sys/procfs.h>
#define MAX_PATH (2 * K)
-// Minimum stack sizes for the VM. It's easier to document a constant value
-// but it's different for x86 and sparc because the page sizes are different.
-#ifdef AMD64
-size_t os::Posix::_compiler_thread_min_stack_allowed = 394 * K;
-size_t os::Posix::_java_thread_min_stack_allowed = 224 * K;
+// Minimum usable stack sizes required to get to user code. Space for
+// HotSpot guard pages is added later.
+#ifdef _LP64
+size_t os::Posix::_compiler_thread_min_stack_allowed = 202 * K;
+size_t os::Posix::_java_thread_min_stack_allowed = 48 * K;
size_t os::Posix::_vm_internal_thread_min_stack_allowed = 224 * K;
+#else
+size_t os::Posix::_compiler_thread_min_stack_allowed = 32 * K;
+size_t os::Posix::_java_thread_min_stack_allowed = 32 * K;
+size_t os::Posix::_vm_internal_thread_min_stack_allowed = 64 * K;
+#endif // _LP64
+
+#ifdef AMD64
#define REG_SP REG_RSP
#define REG_PC REG_RIP
#define REG_FP REG_RBP
#else
-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;
#define REG_SP UESP
#define REG_PC EIP
#define REG_FP EBP
// 4900493 counter to prevent runaway LDTR refresh attempt
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