From: Roland Dreier <rdreier@cisco.com>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: Yinghai Lu <yinghai@kernel.org>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
"linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Bisected regression
Date: Thu, 10 Dec 2009 11:34:45 -0800 [thread overview]
Message-ID: <ada638emxm2.fsf@roland-alpha.cisco.com> (raw)
In-Reply-To: <20091210192659.GV8742@kernel.dk> (Jens Axboe's message of "Thu, 10 Dec 2009 20:26:59 +0100")
> Roland, are you filing a report for this?
Yes, I'll try to track this down.
> I can test other patches if you have good ideas, otherwise I suggest we
> revert the commit.
I'll definitely try to get the BIOS fixed but I do also think that the
kernel shouldn't panic on bad info from the BIOS -- we used to be able
to run fine with what the BIOS gave us. BIOSes are always going to be
crap, and we can print nasty messages in those cases, but the kernel
shouldn't panic unless things are really hopeless.
The benefit of the commit in question seemed to be code cleanup and
reducing use of bootmem -- which I don't think is enough benefit to
justify increasing fragility at runtime.
- R.
next prev parent reply other threads:[~2009-12-10 19:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-10 9:10 current -git fails to boot on nehalem-ex Jens Axboe
2009-12-10 10:39 ` Bisected regression (Was Re: current -git fails to boot on nehalem-ex) Jens Axboe
2009-12-10 16:06 ` Ingo Molnar
2009-12-10 17:26 ` Yinghai
2009-12-10 18:07 ` Jens Axboe
2009-12-10 18:34 ` Yinghai Lu
2009-12-10 18:41 ` Bisected regression Roland Dreier
2009-12-10 18:44 ` Jens Axboe
2009-12-10 19:13 ` Yinghai Lu
2009-12-10 18:44 ` Yinghai Lu
2009-12-10 18:42 ` Bisected regression (Was Re: current -git fails to boot on nehalem-ex) Yinghai Lu
2009-12-10 18:45 ` Jens Axboe
2009-12-10 19:07 ` Jens Axboe
2009-12-10 19:19 ` Yinghai Lu
2009-12-10 19:26 ` Jens Axboe
2009-12-10 19:34 ` Roland Dreier [this message]
2009-12-10 21:07 ` Yinghai Lu
2009-12-10 21:15 ` Jens Axboe
2009-12-10 22:39 ` H. Peter Anvin
2009-12-10 22:45 ` Yinghai Lu
2009-12-10 22:54 ` H. Peter Anvin
2009-12-10 22:47 ` Bisected regression Roland Dreier
2009-12-10 22:50 ` H. Peter Anvin
2009-12-11 8:19 ` Bisected regression (Was Re: current -git fails to boot on nehalem-ex) Jens Axboe
2009-12-11 8:32 ` Ingo Molnar
2009-12-11 8:55 ` [tip:x86/urgent] x86: Use find_e820() instead of hard coded trampoline address tip-bot for Yinghai Lu
2009-12-10 19:28 ` Bisected regression Roland Dreier
2009-12-10 19:33 ` Yinghai Lu
2009-12-10 19:36 ` Roland Dreier
2009-12-10 19:50 ` Yinghai Lu
2009-12-10 22:44 ` H. Peter Anvin
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