diff -r 34cd99df9940 -r f88b9c394e42 hotspot/src/share/vm/runtime/os.cpp --- a/hotspot/src/share/vm/runtime/os.cpp Wed Jul 10 09:14:25 2013 -0700 +++ b/hotspot/src/share/vm/runtime/os.cpp Fri Jul 05 22:17:47 2013 +0200 @@ -1020,7 +1020,7 @@ // if C stack is walkable beyond current frame. The check for fp() is not // necessary on Sparc, but it's harmless. bool os::is_first_C_frame(frame* fr) { -#if defined(IA64) && !defined(_WIN32) +#if (defined(IA64) && !defined(AIX)) && !defined(_WIN32) // On IA64 we have to check if the callers bsp is still valid // (i.e. within the register stack bounds). // Notice: this only works for threads created by the VM and only if