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From: Ingo Molnar <mingo@elte.hu>
To: Nathan Lynch <nathanl@austin.ibm.com>
Cc: Zwane Mwaikambo <zwane@linuxpower.ca>,
	Andrew Morton <akpm@osdl.org>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [PATCH] i386 CPU hotplug updated for -mm
Date: Tue, 12 Oct 2004 08:04:10 +0200	[thread overview]
Message-ID: <20041012060410.GE1479@elte.hu> (raw)
In-Reply-To: <1097560787.6557.99.camel@biclops>


* Nathan Lynch <nathanl@austin.ibm.com> wrote:

> I fixed up the warning in cpu_down with the following patch and now am
> running with that + 2.6.9-rc4-mm1 + your patch while doing continuous
> online/offline and make -j8.  It's been running for about 45 minutes
> and I haven't seen the panic yet, although I'm at a loss to explain
> why the change would fix it.  Will let it run overnight and report
> back...

>  	/* Move it here so it can run. */
> -	kthread_bind(p, smp_processor_id());
> +	kthread_bind(p, get_cpu());
> +	put_cpu();

>  	/* CPU is completely dead: tell everyone.  Too late to complain. */
>  	if (notifier_call_chain(&cpu_chain, CPU_DEAD, (void *)(long)cpu)

hm, is there any assurance that smp_processor_id() == cpu?

but i agree, this fix shouldnt impact the bio-destruct slab crash you
were seeing.

	Ingo

  reply	other threads:[~2004-10-12  6:04 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-01 20:45 [patch 0/5, 2.6.9-rc3] generic irq subsystem, description Ingo Molnar
2004-10-01 20:46 ` [patch 1/5, 2.6.9-rc3] generic irq subsystem, core Ingo Molnar
2004-10-01 20:47   ` [patch 2/5, 2.6.9-rc3] generic irq subsystem, x86 port Ingo Molnar
2004-10-01 20:48     ` [patch 3/5, 2.6.9-rc3] generic irq subsystem, x64 port Ingo Molnar
2004-10-01 20:48       ` [patch 4/5, 2.6.9-rc3] generic irq subsystem, ppc port Ingo Molnar
2004-10-01 20:49       ` [patch 5/5, 2.6.9-rc3] generic irq subsystem, ppc64 port Ingo Molnar
     [not found]   ` <20041001143332.7e3a5aba.akpm@osdl.org>
     [not found]     ` <Pine.LNX.4.61.0410091550300.2870@musoma.fsmlabs.com>
2004-10-11  8:19       ` [PATCH] i386 CPU hotplug updated for -mm Zwane Mwaikambo
2004-10-12  5:59         ` Nathan Lynch
2004-10-12  6:04           ` Ingo Molnar [this message]
2004-10-12 14:16             ` Nathan Lynch
2004-10-12 14:38               ` Zwane Mwaikambo
2004-10-12  6:23           ` Dave Hansen
2004-10-12 14:47           ` Zwane Mwaikambo
2004-10-18 15:10         ` Pavel Machek
2004-10-21 14:47           ` Zwane Mwaikambo

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