From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Ingo Molnar <mingo@elte.hu>,
prasad@linux.vnet.ibm.com,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Roland McGrath <roland@redhat.com>
Subject: Re: [patch 02/11] x86 architecture implementation of Hardware Breakpoint interfaces
Date: Sat, 14 Mar 2009 14:41:15 +1100 [thread overview]
Message-ID: <1237002075.25062.78.camel@pasglop> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0903101620390.4325-100000@iolanthe.rowland.org>
On Tue, 2009-03-10 at 16:30 -0400, Alan Stern wrote:
> Suppose we never allow callers to register more breakpoints than will
> fit in the CPU's registers. Do we then use a simple first-come
> first-served algorithm, with no prioritization? If we do prioritize
> some breakpoint registrations more highly than others, how do we
> inform
> callers that their breakpoint has been kicked out by one of higher
> priority? And how do we let them know when the higher-priority
> breakpoint has been unregistered, so they can try again?
Do we really need such a mess ? Honestly ... We've been living fine
before without any of that.
Ben.
next prev parent reply other threads:[~2009-03-14 3:43 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090305043440.189041194@linux.vnet.ibm.com>
2009-03-05 4:37 ` [patch 01/11] Introducing generic hardware breakpoint handler interfaces prasad
2009-03-10 13:50 ` Ingo Molnar
2009-03-10 14:19 ` Alan Stern
2009-03-10 14:50 ` Ingo Molnar
2009-03-11 12:57 ` K.Prasad
2009-03-11 13:35 ` Ingo Molnar
2009-03-05 4:38 ` [patch 02/11] x86 architecture implementation of Hardware Breakpoint interfaces prasad
2009-03-10 14:09 ` Ingo Molnar
2009-03-10 14:59 ` Alan Stern
2009-03-10 15:18 ` Ingo Molnar
2009-03-10 17:11 ` Alan Stern
2009-03-10 17:26 ` Ingo Molnar
2009-03-10 20:30 ` Alan Stern
2009-03-11 12:12 ` Ingo Molnar
2009-03-11 12:50 ` K.Prasad
2009-03-11 13:10 ` Ingo Molnar
2009-03-14 3:46 ` Benjamin Herrenschmidt
2009-03-11 16:39 ` Alan Stern
2009-03-11 16:32 ` Alan Stern
2009-03-11 17:41 ` K.Prasad
2009-03-14 3:47 ` Benjamin Herrenschmidt
2009-03-14 3:43 ` Benjamin Herrenschmidt
2009-03-14 3:41 ` Benjamin Herrenschmidt [this message]
2009-03-14 3:40 ` Benjamin Herrenschmidt
2009-03-12 2:46 ` Roland McGrath
2009-03-13 3:43 ` Ingo Molnar
2009-03-13 14:04 ` Alan Stern
2009-03-13 14:13 ` Ingo Molnar
2009-03-13 19:01 ` K.Prasad
2009-03-13 21:21 ` Alan Stern
2009-03-14 12:24 ` Ingo Molnar
2009-03-14 16:10 ` Alan Stern
2009-03-14 16:39 ` Ingo Molnar
2009-03-14 3:51 ` Benjamin Herrenschmidt
2009-03-05 4:38 ` [patch 03/11] Modifying generic debug exception to use virtual debug registers prasad
2009-03-05 4:38 ` [patch 04/11] Introduce virtual debug register in thread_struct and wrapper-routines around process related functions prasad
2009-03-10 14:35 ` Ingo Molnar
2009-03-10 15:53 ` Alan Stern
2009-03-10 17:06 ` Ingo Molnar
2009-03-12 2:26 ` Roland McGrath
2009-03-05 4:38 ` [patch 05/11] Use wrapper routines around debug registers in processor " prasad
2009-03-05 4:40 ` [patch 06/11] Use virtual debug registers in process/thread handling code prasad
2009-03-10 14:49 ` Ingo Molnar
2009-03-10 16:05 ` Alan Stern
2009-03-10 16:58 ` Ingo Molnar
2009-03-10 17:07 ` Ingo Molnar
2009-03-10 20:10 ` Alan Stern
2009-03-11 11:53 ` Ingo Molnar
2009-03-05 4:40 ` [patch 07/11] Modify signal handling code to refrain from re-enabling HW Breakpoints prasad
2009-03-05 4:40 ` [patch 08/11] Modify Ptrace routines to access breakpoint registers prasad
2009-03-10 14:40 ` Ingo Molnar
2009-03-10 15:54 ` Alan Stern
2009-03-12 3:14 ` Roland McGrath
2009-03-05 4:41 ` [patch 09/11] Cleanup HW Breakpoint registers before kexec prasad
2009-03-10 14:42 ` Ingo Molnar
2009-03-05 4:41 ` [patch 10/11] Sample HW breakpoint over kernel data address prasad
2009-03-05 4:43 ` prasad
2009-03-05 4:43 ` [patch 11/11] ftrace plugin for kernel symbol tracing using HW Breakpoint interfaces prasad
2009-03-05 6:37 ` Frederic Weisbecker
2009-03-05 9:16 ` Ingo Molnar
2009-03-05 13:15 ` K.Prasad
2009-03-05 13:28 ` Ingo Molnar
2009-03-05 11:33 ` K.Prasad
2009-03-05 12:19 ` K.Prasad
2009-03-05 12:30 ` Frederic Weisbecker
2009-03-05 12:28 ` Frederic Weisbecker
2009-03-05 15:00 ` Steven Rostedt
2009-03-05 14:54 ` Steven Rostedt
[not found] <20090307045120.039324630@linux.vnet.ibm.com>
2009-03-07 5:05 ` [Patch 02/11] x86 architecture implementation of Hardware " prasad
[not found] <20090319234044.410725944@K.Prasad>
2009-03-19 23:48 ` K.Prasad
[not found] <20090324152028.754123712@K.Prasad>
2009-03-24 15:25 ` K.Prasad
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