From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Steven Rostedt <rostedt@goodmis.org>,
Christoph Hellwig <hch@infradead.org>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andi Kleen <andi@firstfloor.org>, Oleg Nesterov <oleg@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jim Keniston <jkenisto@linux.vnet.ibm.com>,
Roland McGrath <roland@hack.frob.com>,
Alexander van Heukelum <heukelum@fastmail.fm>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] [PATCH x86 2/2] Cleanup do_int3
Date: Fri, 18 Nov 2011 15:11:18 +0530 [thread overview]
Message-ID: <20111118094118.GA8311@linux.vnet.ibm.com> (raw)
In-Reply-To: <4EAA0A3D.90102@hitachi.com>
> (2011/10/25 23:21), Srikar Dronamraju wrote:
> > Since there is a possibility of !KPROBES int3 listeners and since
> > DIE_TRAP is currently not being used by anybody, notify all listeners
> > with DIE_INT3.
>
> I'm not sure why this CONFIG_KPROBES dependency had been introduced,
> but it's the time to fix it. do_int3 should send DIE_INT3 always.
>
> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
>
> Thank you!
>
Hi Ingo,
Is there a reason for not taking this patch?
Oleg, Masami, Alexander(who was the last to modify this code) have
all been in favour of this patch.
I didnt get any response from you for the other patch in this series
too.
--
Thanks and Regards
Srikar
> >
> > Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
> > Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
> > ---
> > arch/x86/kernel/traps.c | 7 +------
> > 1 files changed, 1 insertions(+), 6 deletions(-)
> >
> > diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
> > index 6913369..c9a4be5 100644
> > --- a/arch/x86/kernel/traps.c
> > +++ b/arch/x86/kernel/traps.c
> > @@ -461,15 +461,10 @@ dotraplinkage void __kprobes do_int3(struct pt_regs *regs, long error_code)
> > == NOTIFY_STOP)
> > return;
> > #endif /* CONFIG_KGDB_LOW_LEVEL_TRAP */
> > -#ifdef CONFIG_KPROBES
> > +
> > if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP)
> > == NOTIFY_STOP)
> > return;
> > -#else
> > - if (notify_die(DIE_TRAP, "int3", regs, error_code, 3, SIGTRAP)
> > - == NOTIFY_STOP)
> > - return;
> > -#endif
> >
> > preempt_conditional_sti(regs);
> > do_trap(3, SIGTRAP, "int3", regs, error_code, NULL);
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
>
>
> --
> Masami HIRAMATSU
> Software Platform Research Dept. Linux Technology Center
> Hitachi, Ltd., Yokohama Research Laboratory
> E-mail: masami.hiramatsu.pt@hitachi.com
>
next prev parent reply other threads:[~2011-11-18 10:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-25 14:18 [RESEND] [RFC][PATCH X86_32 1/2]: Call do_notify_resume() with interrupts enabled Srikar Dronamraju
2011-10-25 14:21 ` [RFC] [PATCH x86 2/2] Cleanup do_int3 Srikar Dronamraju
2011-10-25 15:52 ` Oleg Nesterov
2011-10-28 1:49 ` Masami Hiramatsu
2011-11-18 9:41 ` Srikar Dronamraju [this message]
2011-12-06 9:42 ` [tip:x86/asm] x86: Clean up and extend do_int3() tip-bot for Srikar Dronamraju
2011-10-25 16:14 ` [RESEND] [RFC][PATCH X86_32 1/2]: Call do_notify_resume() with interrupts enabled Oleg Nesterov
2011-10-26 12:38 ` Linus Torvalds
2011-10-26 15:10 ` Russell King
2011-10-26 17:34 ` Roland McGrath
2011-10-26 18:58 ` Oleg Nesterov
2011-11-03 4:43 ` Srikar Dronamraju
2011-12-06 9:42 ` [tip:x86/asm] x86: " tip-bot for Srikar Dronamraju
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