From: "H. Peter Anvin" <hpa@zytor.com>
To: Sasha Levin <sasha.levin@oracle.com>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: vegard.nossum@oracle.com, penberg@kernel.org,
jamie.iles@oracle.com, mingo@redhat.com, tglx@linutronix.de,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/4] x86/insn: Extract more information about instructions
Date: Thu, 17 Apr 2014 08:28:30 -0700 [thread overview]
Message-ID: <534FF31E.1000104@zytor.com> (raw)
In-Reply-To: <534FF135.40404@oracle.com>
On 04/17/2014 08:20 AM, Sasha Levin wrote:
>
> It's not like the instruction decoder is a generic piece of code right now anyways,
> it only serves mostly [k,u]probes and was built around the their requirements, and
> now everybody are surprised that kmemcheck has different requirements than kprobes.
>
What *ARE* kmemcheck's requirements? That's the real issue, I believe.
I also have seen several attempts at using the generic instruction
decoder which has resulted in more complexity, not less, because of
excess generality, so it is not an obvious thing.
-hpa
next prev parent reply other threads:[~2014-04-17 15:29 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-14 17:44 [PATCH 1/4] kmemcheck: add additional selfchecks Sasha Levin
2014-04-14 17:44 ` [PATCH 2/4] x86: Move instruction decoder data into header Sasha Levin
2014-04-15 1:41 ` Masami Hiramatsu
2014-04-15 2:28 ` Sasha Levin
2014-04-15 3:10 ` Masami Hiramatsu
2014-04-15 14:24 ` Sasha Levin
2014-04-16 3:06 ` Masami Hiramatsu
2014-04-14 17:44 ` [PATCH 3/4] x86/insn: Extract more information about instructions Sasha Levin
2014-04-15 3:12 ` Masami Hiramatsu
2014-04-15 4:36 ` Masami Hiramatsu
2014-04-15 15:10 ` Sasha Levin
2014-04-16 3:26 ` H. Peter Anvin
2014-04-16 3:47 ` Sasha Levin
2014-04-16 3:54 ` H. Peter Anvin
2014-04-16 4:03 ` Sasha Levin
2014-04-16 4:31 ` H. Peter Anvin
2014-04-16 5:30 ` Masami Hiramatsu
2014-04-17 15:20 ` Sasha Levin
2014-04-17 15:28 ` H. Peter Anvin [this message]
2014-04-17 17:31 ` Sasha Levin
2014-04-18 3:40 ` Masami Hiramatsu
2014-04-18 3:45 ` H. Peter Anvin
2014-04-18 15:47 ` Sasha Levin
2014-04-18 16:48 ` H. Peter Anvin
2014-04-16 5:44 ` Masami Hiramatsu
2014-04-17 15:33 ` Sasha Levin
2014-04-18 3:25 ` Masami Hiramatsu
2014-04-14 17:44 ` [PATCH 4/4] kmemcheck: Switch to using kernel disassembler Sasha Levin
2014-04-15 8:17 ` Pekka Enberg
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