From: Ingo Molnar <mingo@elte.hu>
To: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Subject: Re: [PATCH v2] x86 mmiotrace: dynamically disable non-boot CPUs
Date: Sat, 26 Apr 2008 13:13:07 +0200 [thread overview]
Message-ID: <20080426111307.GA401@elte.hu> (raw)
In-Reply-To: <20080424223947.55c053f6@daedalus.pq.iki.fi>
* Pekka Paalanen <pq@iki.fi> wrote:
> From 8979ee55cb6a429c4edd72ebec2244b849f6a79a Mon Sep 17 00:00:00 2001
> From: Pekka Paalanen <pq@iki.fi>
> Date: Sat, 12 Apr 2008 00:18:57 +0300
> Subject: [PATCH] x86 mmiotrace: dynamically disable non-boot CPUs
>
> Mmiotrace is not reliable with multiple CPUs and may miss events. Drop
> to single CPU when mmiotrace is activated.
>
> Signed-off-by: Pekka Paalanen <pq@iki.fi>
> ---
>
> I've tested this patch on my Core 2 Duo laptop, and with "[PATCH v2]
> Check for breakpoint in text_poke to eliminate bug_on" cpu hotplug
> seems to work fine on a sched-devel/latest SMP kernel both with and
> without CONFIG_HOTPLUG_CPU.
thanks Pekka, applied.
Ingo
prev parent reply other threads:[~2008-04-26 11:13 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20080413224207.4430a09c@daedalus.pq.iki.fi>
2008-04-13 19:48 ` [PATCH] mmiotrace: add user documentation Pekka Paalanen
2008-04-14 15:49 ` Steven Rostedt
2008-04-14 18:20 ` Pekka Paalanen
2008-04-13 20:05 ` [BUG/PATCH] x86 mmiotrace: dynamically disable non-boot CPUs Pekka Paalanen
2008-04-14 6:57 ` Ingo Molnar
2008-04-14 18:02 ` Pekka Paalanen
2008-04-16 11:46 ` Ingo Molnar
2008-04-16 17:59 ` Pekka Paalanen
2008-04-16 18:32 ` Ingo Molnar
2008-04-16 19:07 ` Steven Rostedt
2008-04-16 20:42 ` Pekka Paalanen
2008-04-16 20:47 ` Ingo Molnar
2008-07-24 15:34 ` [Nouveau] " Stephane Marchesin
2008-04-19 15:41 ` [BUG] kmalloc_node(GFP_KERNEL) while smp_alt spinlocked Pekka Paalanen
2008-04-19 16:19 ` [PATCH] Fix SMP alternatives : use mutex instead of spinlock, text_poke is sleepable Mathieu Desnoyers
2008-04-19 21:06 ` Pekka Paalanen
2008-04-19 21:52 ` [BUG] CPU hotplug reboots machine (Re: [PATCH] Fix SMP alternatives : use mutex instead of spinlock, text_poke is sleepable) Pekka Paalanen
2008-04-19 21:58 ` [PATCH] Check for breakpoint in text_poke to eliminate bug_on Mathieu Desnoyers
2008-04-19 22:42 ` Pekka Paalanen
2008-04-20 0:05 ` Mathieu Desnoyers
2008-04-20 7:14 ` Pekka Paalanen
2008-04-20 19:44 ` Mathieu Desnoyers
2008-04-20 20:18 ` Pekka Paalanen
2008-04-20 20:25 ` Mathieu Desnoyers
2008-04-21 18:48 ` [PATCH] x86_64: fix kernel rodata NX setting Pekka Paalanen
2008-04-21 18:57 ` Steven Rostedt
2008-04-21 19:03 ` Ingo Molnar
2008-04-22 18:42 ` [repost PATCH] Fix SMP alternatives : use mutex instead of spinlock, text_poke is sleepable Pekka Paalanen
2008-04-22 19:09 ` Ingo Molnar
2008-04-22 20:22 ` Mathieu Desnoyers
2008-04-24 19:39 ` [PATCH v2] x86 mmiotrace: dynamically disable non-boot CPUs Pekka Paalanen
2008-04-26 11:13 ` Ingo Molnar [this message]
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