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From: Ingo Molnar <mingo@elte.hu>
To: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	David Miller <davem@davemloft.net>,
	Steven Rostedt <rostedt@goodmis.org>,
	Archs <linux-arch@vger.kernel.org>,
	"H . Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 0/7] perf updates and fixes
Date: Fri, 26 Mar 2010 08:58:17 +0100	[thread overview]
Message-ID: <20100326075817.GA27394@elte.hu> (raw)
In-Reply-To: <20100326060229.GA5259@drongo>


* Paul Mackerras <paulus@samba.org> wrote:

> On Fri, Mar 26, 2010 at 02:52:35AM +0100, Frederic Weisbecker wrote:
> 
> > The series is not yet mergeable because it would break PowerPc (hot regs 
> > snapshot API has been changed, and I don't know how to update PowerPc for 
> > that).
> > 
> > But if you're fine with the ideas, I can integrate the necessary changes 
> > to fix this, and also separate fixes and updates.
> 
> The patch below adds the necessary stuff for powerpc.  You could fold it 
> into your "perf: Move perf_arch_fetch_caller_regs into a macro" patch, or 
> keep it as a separate patch in the series (though that would make preserving 
> bisectability more difficult).

Since the series needs a resend anyway folding back ought to be fine i think.

I'm wondering whether this should get into tip:perf/urgent - or in 
tip:perf/core for 2.6.35.

It fixes sw event call trace ugliness, but is that a 2.6.34 regression? Is 
there any other aspect of the series that points towards accelerating this 
into .34?

Thanks,

	Ingo

  reply	other threads:[~2010-03-26  7:58 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-26  1:52 [PATCH 0/7] perf updates and fixes Frederic Weisbecker
2010-03-26  1:52 ` [PATCH 1/7] perf: Drop the frame reliablity check Frederic Weisbecker
2010-03-26  1:52 ` [PATCH 2/7] perf: Fetch hot regs from the template caller Frederic Weisbecker
2010-03-26  1:52 ` [PATCH 3/7] x86: Unify dumpstack.h and stacktrace.h Frederic Weisbecker
2010-03-26  1:52 ` [PATCH 4/7] perf: Move perf_arch_fetch_caller_regs into a macro Frederic Weisbecker
2010-03-26  1:52   ` Frederic Weisbecker
2010-03-26  1:52   ` Frederic Weisbecker
2010-03-26  1:52 ` [PATCH 5/7] perf: Make perf_fetch_caller_regs rewind to the first caller only Frederic Weisbecker
2010-03-26  1:52   ` Frederic Weisbecker
2010-03-26  1:52   ` Frederic Weisbecker
2010-04-08  9:57   ` [BUG perf] perf_fetch_caller_regs / rewind_frame_pointer can panic Eric Dumazet
2010-04-08 10:59     ` Frederic Weisbecker
2010-04-08 12:32     ` [PATCH] perf: Fix unsafe frame rewinding with hot regs fetching Frederic Weisbecker
2010-04-08 12:32       ` Frederic Weisbecker
2010-04-08 13:52       ` Eric Dumazet
2010-04-08 17:31         ` [GIT PULL] perf fix Frederic Weisbecker
2010-04-13 22:51           ` Ingo Molnar
2010-03-26  1:52 ` [PATCH 6/7] perf: Use hot regs with software sched/migrate events Frederic Weisbecker
2010-03-26  1:52 ` [PATCH 7/7] perf: Correctly align perf event tracing buffer Frederic Weisbecker
2010-03-26  6:02 ` [PATCH 0/7] perf updates and fixes Paul Mackerras
2010-03-26  7:58   ` Ingo Molnar [this message]
2010-03-26 17:38     ` Frederic Weisbecker
2010-03-26 17:45   ` Frederic Weisbecker

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