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From: Ingo Molnar <mingo@elte.hu>
To: Andi Kleen <andi@firstfloor.org>
Cc: Borislav Petkov <bp@amd64.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Huang Ying <ying.huang@intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Borislav Petkov <petkovbb@googlemail.com>,
	linux-kernel@vger.kernel.org, mauro@elte.hu
Subject: Re: [RFC][PATCH] irq_work
Date: Thu, 24 Jun 2010 15:46:09 +0200	[thread overview]
Message-ID: <20100624134609.GB30323@elte.hu> (raw)
In-Reply-To: <20100624133323.GN578@basil.fritz.box>


* Andi Kleen <andi@firstfloor.org> wrote:

> > If its a critical error you do all the handling in the kernel and you
> 
> I assume you mean in MCE.  And the answer is no.
> 
> MCE generally can only panic or log, everything else
> needs other contexts.
> 
> > don't need task context at all, no? 
> 
> Process context is needed for various recovery schemes, all
> that need to sleep for example.

Please, as Peter and Boris asked you already, quote a concrete, specific 
example:

  'Specific event X occurs, kernel wants/needs to do Y. This cannot be done
   via the suggested method due to Z.'

Your generic arguments look wrong (to the extent they are specified) and it 
makes it much easier and faster to address your points if you dont blur them 
by vagaries.

Thanks,

	Ingo

  parent reply	other threads:[~2010-06-24 13:46 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-24  3:04 [RFC 1/5] Make soft_irq NMI safe Huang Ying
2010-06-24  3:04 ` [RFC 2/5] NMI return notifier Huang Ying
2010-06-24  3:04 ` [RFC 3/5] x86, trigger NMI return notifier soft_irq earlier Huang Ying
2010-06-24  6:03   ` Peter Zijlstra
2010-06-24  3:04 ` [RFC 4/5] x86, Use NMI return notifier in MCE Huang Ying
2010-06-24 10:00   ` Andi Kleen
2010-06-24  3:04 ` [RFC 5/5] Use NMI return notifier in perf pending Huang Ying
2010-06-24  6:00   ` Peter Zijlstra
2010-06-24  6:09 ` [RFC 1/5] Make soft_irq NMI safe Peter Zijlstra
2010-06-24  6:45   ` Huang Ying
2010-06-24  6:35 ` [RFC][PATCH] irq_work Peter Zijlstra
2010-06-24  6:43   ` Huang Ying
2010-06-24  6:47     ` Peter Zijlstra
2010-06-24  6:50       ` Huang Ying
2010-06-24  6:58         ` Peter Zijlstra
2010-06-24  7:04           ` Huang Ying
2010-06-24  7:19             ` Peter Zijlstra
2010-06-24  7:27               ` Huang Ying
2010-06-24  7:32                 ` Peter Zijlstra
2010-06-24 10:27                   ` Andi Kleen
2010-06-24 10:30                     ` Peter Zijlstra
2010-06-24 10:52                       ` Andi Kleen
2010-06-24 10:58                         ` Peter Zijlstra
2010-06-24 11:08                           ` Andi Kleen
2010-06-24 11:10                             ` Peter Zijlstra
2010-06-24 11:20                               ` Andi Kleen
2010-06-24 11:33                                 ` Peter Zijlstra
2010-06-24 11:55                                   ` Andi Kleen
2010-06-24 11:57                                     ` Peter Zijlstra
2010-06-24 12:02                                       ` Andi Kleen
2010-06-24 12:18                                         ` Peter Zijlstra
2010-06-24 12:38                                           ` Andi Kleen
2010-06-25 10:38                                             ` Peter Zijlstra
2010-06-24 11:42                                 ` Peter Zijlstra
2010-06-24 11:58                                   ` Andi Kleen
2010-06-24 12:02                                     ` Peter Zijlstra
2010-06-24 11:23                               ` Ingo Molnar
2010-06-24 11:34                                 ` Peter Zijlstra
2010-06-24 12:35                                   ` Ingo Molnar
2010-06-24 13:02                                     ` Andi Kleen
2010-06-24 13:20                                       ` Borislav Petkov
2010-06-24 13:33                                         ` Andi Kleen
2010-06-24 13:42                                           ` Ingo Molnar
2010-06-24 13:46                                           ` Ingo Molnar [this message]
2010-06-24 14:01                                             ` Andi Kleen
2010-06-24 15:41                                               ` Borislav Petkov
2010-06-24 16:09                                                 ` Andi Kleen
2010-06-25  2:12   ` Huang Ying
2010-06-25  7:48     ` Peter Zijlstra
2010-06-25  9:17       ` Huang Ying
2010-06-25  9:23         ` Frederic Weisbecker
2010-06-25  9:30           ` Huang Ying
2010-06-25  9:44             ` Frederic Weisbecker
2010-06-25  9:30         ` Peter Zijlstra
2010-06-25 11:58           ` huang ying
2010-06-25  9:08     ` Andi Kleen
2010-06-25 18:30   ` [RFC][PATCH] irq_work -v2 Peter Zijlstra
2010-06-25 19:30     ` Andi Kleen
2010-06-25 19:39       ` Peter Zijlstra
2010-06-25 19:49         ` Peter Zijlstra
2010-06-25 22:29         ` Andi Kleen
2010-06-26  8:36           ` Peter Zijlstra
2010-06-26 10:08             ` Andi Kleen
2010-06-26 10:32               ` Peter Zijlstra
2010-06-25 19:47       ` Peter Zijlstra
2010-06-26  1:26     ` huang ying

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