--- a/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp Thu Sep 15 18:18:39 2016 +0300
+++ b/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp Mon Sep 26 15:56:39 2016 -0400
@@ -191,7 +191,9 @@
// method returns the Java sender of the current frame.
*fr = os::fetch_frame_from_ucontext(thread, uc);
if (!fr->is_first_java_frame()) {
- assert(fr->safe_for_sender(thread), "Safety check");
+ // get_frame_at_stack_banging_point() is only called when we
+ // have well defined stacks so java_sender() calls do not need
+ // to assert safe_for_sender() first.
*fr = fr->java_sender();
}
} else {
@@ -209,8 +211,8 @@
intptr_t* sp = os::Linux::ucontext_get_sp(uc);
*fr = frame(sp + 1, fp, (address)*sp);
if (!fr->is_java_frame()) {
- assert(fr->safe_for_sender(thread), "Safety check");
assert(!fr->is_first_frame(), "Safety check");
+ // See java_sender() comment above.
*fr = fr->java_sender();
}
}