Re: linux-next: add utrace tree

2010-01-28 Thread Benjamin Herrenschmidt
On Mon, 2010-01-25 at 08:52 -0800, Linus Torvalds wrote: That said, I also suspect that people should still look seriously at simply just improving ptrace. For example, I suspect that the biggest problem with ptrace is really just the signalling, and that creating a new extension for

Re: powerpc: syscall_dotrace() retcode (Was: powerpc: fork stepping)

2009-12-01 Thread Benjamin Herrenschmidt
On Tue, 2009-12-01 at 11:27 -0800, Roland McGrath wrote: If the powerpc maintainers want to change the behavior here, that is fine by me. But there is no need for that just to satisfy general ptrace cleanups (or utrace). Normal concerns require that no such change break the ptrace behavior

Re: powerpc: syscall_dotrace() retcode (Was: powerpc: fork stepping)

2009-11-29 Thread Benjamin Herrenschmidt
On Sun, 2009-11-29 at 22:07 +0100, Oleg Nesterov wrote: On 11/28, Ananth N Mavinakayanahalli wrote: syscall-reset is the only failure I see on powerpc: errno 14 (Bad address) syscall-reset: syscall-reset.c:95: main: Assertion `(*__errno_location ()) == 38' failed. unexpected child

Re: [PATCH] powerpc ptrace block-step

2009-04-01 Thread Benjamin Herrenschmidt
On Wed, 2009-04-01 at 14:59 -0700, Roland McGrath wrote: diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index c9c678f..d7692b8 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -135,7 +135,9 @@ do {