From: Ingo Molnar <mingo@elte.hu>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Pavel Machek <pavel@ucw.cz>, Tejun Heo <tj@kernel.org>,
"Ahmed S. Darwish" <darwish.07@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, X86-ML <x86@kernel.org>,
Tony Luck <tony.luck@intel.com>, Dave Jones <davej@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Randy Dunlap <rdunlap@xenotime.net>,
Willy Tarreau <wtarreau@hera.kernel.org>,
Willy Tarreau <w@1wt.eu>, Dirk Hohndel <hohndel@infradead.org>,
Dirk.Hohndel@intel.com, IDE-ML <linux-ide@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Fr?d?ric Weisbecker <fweisbec@gmail.com>,
Borislav Petkov <bp@alien8.de>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic
Date: Thu, 3 Feb 2011 18:57:21 +0100 [thread overview]
Message-ID: <20110203175721.GB8785@elte.hu> (raw)
In-Reply-To: <4D4AC996.4070307@zytor.com>
* H. Peter Anvin <hpa@zytor.com> wrote:
> On 02/03/2011 06:36 AM, Pavel Machek wrote:
> >
> > Could we read the log area, first, verify it contains signature, write
> > it back?
> > Pavel
>
> Yes, but that doesn't guarantee no data corruption caused by handing
> over from one driver to another.
Waiting a few seconds? Is there any sufficiently high number of X where waiting X
seconds would make it safe to touch the hardware? (i.e. it would guarantee that
pending commands are flushed, etc.)
Thanks,
Ingo
next prev parent reply other threads:[~2011-02-03 17:58 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-25 13:47 [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic Ahmed S. Darwish
2011-01-25 13:51 ` [PATCH -next 1/2][RFC] x86: Saveoops: Switch to real-mode and call BIOS Ahmed S. Darwish
2011-01-25 17:26 ` H. Peter Anvin
2011-01-25 13:53 ` [PATCH -next 2/2][RFC] x86: Saveoops: Reserve low memory and register code Ahmed S. Darwish
2011-01-25 17:29 ` H. Peter Anvin
2011-01-26 9:04 ` Ahmed S. Darwish
2011-01-25 14:09 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic Ingo Molnar
2011-01-25 15:08 ` Tejun Heo
2011-01-25 17:33 ` H. Peter Anvin
2011-01-26 11:44 ` Ahmed S. Darwish
2011-02-03 14:36 ` Pavel Machek
2011-02-03 15:28 ` H. Peter Anvin
2011-02-03 17:57 ` Ingo Molnar [this message]
2011-02-03 21:07 ` H. Peter Anvin
2011-01-25 15:36 ` Ahmed S. Darwish
2011-01-25 16:02 ` James Bottomley
2011-01-25 17:05 ` Ahmed S. Darwish
2011-01-25 17:20 ` James Bottomley
2011-01-25 22:10 ` Mark Lord
2011-01-25 22:16 ` Randy Dunlap
2011-01-25 22:45 ` Jeff Garzik
2011-01-25 22:58 ` H. Peter Anvin
2011-01-26 0:26 ` Jeff Garzik
2011-01-31 2:59 ` Rusty Russell
2011-01-31 10:45 ` Ingo Molnar
2011-01-25 17:32 ` Tony Luck
2011-01-25 17:36 ` H. Peter Anvin
2011-01-25 19:04 ` Jeff Garzik
2011-01-25 14:49 ` Tejun Heo
2011-01-28 7:59 ` Jan Ceuleers
2011-01-25 20:25 ` Linus Torvalds
[not found] ` <20110126124954.GC24527@laptop>
2011-01-26 23:07 ` Luck, Tony
[not found] ` <20110126231620.GA14807@redhat.com>
[not found] ` <987664A83D2D224EAE907B061CE93D53019438EB02@orsmsx505.amr.corp.intel.com>
[not found] ` <20110126233033.GB14807@redhat.com>
[not found] ` <987664A83D2D224EAE907B061CE93D53019438EBB6@orsmsx505.amr.corp.intel.com>
[not found] ` <4D40F7F1.3020509@zytor.com>
[not found] ` <20110127120039.GD20279@elte.hu>
2011-01-27 18:35 ` Luck, Tony
[not found] ` <4D4197CB.9070201@zytor.com>
[not found] ` <20110127162429.GB26437@elte.hu>
2011-01-27 18:56 ` Luck, Tony
[not found] ` <20110127021338.GA20334@redhat.com>
[not found] ` <4D40F81E.1030009@zytor.com>
[not found] ` <20110127052639.GA16289@laptop>
[not found] ` <m1sjweyeax.fsf@fess.ebiederm.org>
2011-02-02 11:13 ` Ahmed S. Darwish
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