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SubjectRe: [PATCH 6/7] implement utrace-ptrace
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 <roland@redhat.com>
> > Signed-off-by: Oleg Nesterov <oleg@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.


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