From: Russell King <rmk@arm.linux.org.uk>
To: Christoph Lameter <cl@linux-foundation.org>
Cc: Matthew Wilcox <matthew@wil.cx>, "H. Peter Anvin" <hpa@zytor.com>,
Yinghai Lu <yinghai@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Rabin Vincent <rabin@rab.in>, lkml <linux-kernel@vger.kernel.org>,
penberg@cs.helsinki.fi,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
linux-arch@vger.kernel.org
Subject: Re: start_kernel(): bug: interrupts were enabled early
Date: Wed, 31 Mar 2010 22:54:11 +0100 [thread overview]
Message-ID: <20100331215411.GB17715@flint.arm.linux.org.uk> (raw)
In-Reply-To: <alpine.DEB.2.00.1003311640410.30456@router.home>
On Wed, Mar 31, 2010 at 04:42:25PM -0500, Christoph Lameter wrote:
> Do not run the checks while we are in a single threaded context?
>
> I thought we had some dynamic code patching thingamy that could change
> those when we go to smp mode?
You have to remember that on embedded architectures, such as ARM,
where XIP is supported we can't change the text segment at run time -
which means dynamic code patching won't work.
However, the kernel should still work in such situations.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of:
next prev parent reply other threads:[~2010-03-31 21:57 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-25 19:41 start_kernel(): bug: interrupts were enabled early Rabin Vincent
2010-03-31 20:40 ` Andrew Morton
2010-03-31 20:47 ` Yinghai Lu
2010-03-31 20:52 ` Andrew Morton
2010-03-31 21:12 ` H. Peter Anvin
2010-03-31 21:28 ` Andrew Morton
2010-03-31 22:35 ` Benjamin Herrenschmidt
2010-04-01 16:13 ` Linus Torvalds
2010-04-01 14:27 ` Andrew Morton
2010-04-01 20:12 ` Linus Torvalds
2010-04-02 14:46 ` David Howells
2010-04-02 14:54 ` Linus Torvalds
2010-04-07 19:09 ` Kevin Hilman
2010-04-08 15:55 ` Américo Wang
2010-03-31 21:01 ` Matthew Wilcox
2010-03-31 21:05 ` H. Peter Anvin
2010-03-31 21:17 ` Matthew Wilcox
2010-03-31 21:42 ` Christoph Lameter
2010-03-31 21:54 ` Russell King [this message]
2010-03-31 21:57 ` H. Peter Anvin
2010-03-31 22:30 ` Russell King
2010-03-31 22:37 ` Benjamin Herrenschmidt
2010-03-31 22:49 ` Andrew Morton
2010-04-01 1:17 ` Benjamin Herrenschmidt
2010-03-31 22:26 ` Andrew Morton
2010-04-01 6:26 ` H. Peter Anvin
2010-04-01 3:33 ` Andrew Morton
2010-04-01 6:48 ` Benjamin Herrenschmidt
2010-04-01 16:15 ` H. Peter Anvin
2010-04-01 11:06 ` David Howells
2010-04-01 15:55 ` Christoph Lameter
2010-04-01 23:00 ` Benjamin Herrenschmidt
2010-04-01 6:50 ` Benjamin Herrenschmidt
2010-03-31 22:36 ` Benjamin Herrenschmidt
2010-04-01 15:57 ` Christoph Lameter
2010-03-31 21:05 ` Russell King
2010-03-31 21:08 ` H. Peter Anvin
2010-03-31 22:31 ` Benjamin Herrenschmidt
2010-03-31 22:36 ` H. Peter Anvin
2010-03-31 22:58 ` David Howells
2010-04-01 9:41 ` Jamie Lokier
2010-04-01 11:23 ` Matthew Wilcox
2010-04-01 10:50 ` David Howells
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