From: Jeff Garzik <jeff@garzik.org>
To: Tony Luck <tony.luck@intel.com>
Cc: "Ahmed S. Darwish" <darwish.07@gmail.com>,
"Ingo Molnar" <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>, X86-ML <x86@kernel.org>,
"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>,
"Frédéric 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: Tue, 25 Jan 2011 14:04:15 -0500 [thread overview]
Message-ID: <4D3F1EAF.1080609@garzik.org> (raw)
In-Reply-To: <AANLkTikHe8Bq1f-nv8hiAeY7rs7t5MWTvEUSYT81py4S@mail.gmail.com>
On 01/25/2011 12:32 PM, Tony Luck wrote:
> One more "is this bit of the BIOS code safe" concern that I have is that
> you'll be using the "write" path of the INT 0x13 code ... which isn't the
> path that is tested by booting ... it *ought* to be OK - but untested paths
> in BIOS seem to be broken paths all too often.
Not really... as others have noted, we reprogram the controller in a
different mode, once the kernel starts.
Jeff
next prev parent reply other threads:[~2011-01-25 19:04 UTC|newest]
Thread overview: 75+ 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
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 [this message]
2011-01-25 14:49 ` Tejun Heo
2011-01-28 7:59 ` Jan Ceuleers
2011-01-25 20:25 ` Linus Torvalds
[not found] ` <AANLkTinU0KYiCd4p=z+=ojbkeEoT2G+CAYvdRU02KJEn-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-01-26 12:49 ` Ahmed S. Darwish
2011-01-26 12:49 ` Ahmed S. Darwish
2011-01-26 12:58 ` Ingo Molnar
2011-01-26 12:58 ` Ingo Molnar
[not found] ` <20110126125813.GA26952-X9Un+BFzKDI@public.gmane.org>
2011-01-26 13:34 ` Ahmed S. Darwish
2011-01-26 13:34 ` Ahmed S. Darwish
2011-01-26 14:00 ` Ingo Molnar
2011-01-26 14:00 ` Ingo Molnar
[not found] ` <20110126140030.GB30064-X9Un+BFzKDI@public.gmane.org>
2011-01-27 4:35 ` H. Peter Anvin
2011-01-27 4:35 ` H. Peter Anvin
[not found] ` <4D40F5FD.6090507-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2011-01-27 11:41 ` Ingo Molnar
2011-01-27 11:41 ` Ingo Molnar
[not found] ` <20110127114113.GB20279-X9Un+BFzKDI@public.gmane.org>
2011-01-27 15:47 ` Eric W. Biederman
2011-01-27 15:47 ` Eric W. Biederman
[not found] ` <m1aaimxs9h.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2011-01-27 16:12 ` H. Peter Anvin
2011-01-27 16:12 ` H. Peter Anvin
2011-01-26 23:07 ` Luck, Tony
2011-01-26 23:07 ` Luck, Tony
2011-01-26 23:07 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon Luck, Tony
2011-01-26 23:07 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic Luck, Tony
[not found] ` <987664A83D2D224EAE907B061CE93D53019438EABF-osO9UTpF0URqS6EAlXoojrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2011-01-26 23:16 ` Dave Jones
2011-01-26 23:16 ` Dave Jones
[not found] ` <20110126231620.GA14807-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-01-26 23:21 ` Luck, Tony
2011-01-26 23:21 ` Luck, Tony
[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
2011-01-27 18:35 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon Luck, Tony
2011-01-27 18:35 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic Luck, Tony
[not found] ` <4D4197CB.9070201@zytor.com>
[not found] ` <20110127162429.GB26437@elte.hu>
2011-01-27 18:56 ` Luck, Tony
2011-01-27 18:56 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon Luck, Tony
2011-01-27 18:56 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic Luck, Tony
2011-01-27 1:09 ` Ahmed S. Darwish
2011-01-27 1:09 ` Ahmed S. Darwish
[not found] ` <20110127021338.GA20334@redhat.com>
[not found] ` <20110127021338.GA20334-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-01-27 3:33 ` Ahmed S. Darwish
2011-01-27 3:33 ` Ahmed S. Darwish
2011-01-27 4:44 ` H. Peter Anvin
2011-01-27 4:44 ` H. Peter Anvin
[not found] ` <4D40F81E.1030009-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2011-01-27 5:26 ` Ahmed S. Darwish
2011-01-27 5:26 ` Ahmed S. Darwish
2011-01-27 7:51 ` Eric W. Biederman
2011-01-27 7:51 ` Eric W. Biederman
2011-02-02 11:13 ` Ahmed S. Darwish
2011-02-02 11:13 ` Ahmed S. Darwish
2011-02-02 11:13 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk Ahmed S. Darwish
2011-02-02 11:13 ` [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic Ahmed S. Darwish
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