From: Zan Lynx <zlynx@acm.org>
To: Dave Jones <davej@redhat.com>
Cc: Steve Snyder <swsnyder@insightbb.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Where to call L2 cache enabling code from?
Date: Fri, 14 Apr 2006 11:08:26 -0600 [thread overview]
Message-ID: <1145034507.9218.4.camel@localhost> (raw)
In-Reply-To: <20060414170052.GA22463@redhat.com>
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On Fri, 2006-04-14 at 12:00 -0500, Dave Jones wrote:
[snip]
> arch/i386/kernel/cpu/intel.c has a bunch of workarounds for various
> issues. Is there a valid use-case for ever booting with cache disabled
> though? If so, this should probably be a boot-time option to enable it.
Yes, disabling the cache is useful to debug bad hardware. If the CPU
cache is bad, then disabling it might make things work again and you
know what needs to be replaced.
--
Zan Lynx <zlynx@acm.org>
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prev parent reply other threads:[~2006-04-14 17:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-14 15:05 Where to call L2 cache enabling code from? Steve Snyder
2006-04-14 15:46 ` Alan Cox
2006-04-14 16:49 ` Steve Snyder
2006-04-14 17:00 ` Dave Jones
2006-04-14 17:08 ` Zan Lynx [this message]
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