On Mon, Dec 21, 2009 at 07:18:37PM +0530, Ananth N Mavinakayanahalli wrote: > On Fri, Dec 18, 2009 at 02:11:40AM +0100, Oleg Nesterov wrote: > > The patch adds the new file, kernel/ptrace-utrace.c, which contains > > the new implementation of ptrace over utrace. > > > > This file is not compiled until we have CONFIG_UTRACE option, will be > > added by the next "utrace core" patch. > > > > It's supposed to be an invisible implementation change, nothing should > > change to userland when CONFIG_UTRACE is enabled. > > > > Signed-off-by: Roland McGrath <rol...@redhat.com> > > Signed-off-by: Oleg Nesterov <o...@redhat.com> > > --- > > Oleg, > > ptrace/utrace performs better with the ptrace-tests [1] testsuite (1 failure > vs. 3 with vanilla ptrace [1]). The gdb testsuite also has no > regressions. In fact, the results on the gdb testsuite are identical.
Forgot to mention the tests were on powerpc.