http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52089
John David Anglin <danglin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED --- Comment #2 from John David Anglin <danglin at gcc dot gnu.org> 2012-12-23 02:46:59 UTC --- Fail is fixed by kernel patch to fix handling of the PSW branch taken bit. There is still an issue with nullified PSW bit (N). It's probably a gdb issue as it affects both linux and hpux.