linux-kernel - Re: HW breakpoints perf

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Message-ID: <20100119145337.GC8061@nowhere>
Date:	Tue, 19 Jan 2010 15:53:40 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	"K.Prasad" <prasad@...ux.vnet.ibm.com>
Cc:	Joshua Pincus <joshua.pincus@...il.com>, peterz@...radead.org,
	paulus@...ba.org, acme@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: HW breakpoints perf_events request

On Mon, Jan 18, 2010 at 11:15:05PM +0530, K.Prasad wrote:
> Signal generation happens by default for all user-space breakpoint
> requests (and not just for ptrace requests).


Ah? That's not a good thing. We should be able to
set userspace breakpoints later on perf without
generating signals.

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