From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@osdl.org>
Cc: herbert@gondor.apana.org.au, len.brown@intel.com,
linux-kernel@vger.kernel.org
Subject: Re: [APIC] Avoid change apic_id failure panic
Date: Thu, 3 Jun 2004 16:48:19 -0700 [thread overview]
Message-ID: <20040603234819.GO21007@holomorphy.com> (raw)
In-Reply-To: <20040603164415.06a7098c.akpm@osdl.org>
William Lee Irwin III <wli@holomorphy.com> wrote:
>> They're usually not insane. xAPIC's have 8-bit physical ID's, not 4-bit,
>> but no one's bothered tracking whether the APIC's found were serial APIC
>> or xAPIC, and then dispatching on that in the IO-APIC physid check to
>> avoid unnecessarily renumbering the things or panicking.
On Thu, Jun 03, 2004 at 04:44:15PM -0700, Andrew Morton wrote:
> So... what should we do?
In all likelihood, make the thing a variable or return a value based
on the result of GET_APIC_VERSION(), particularly since guessing wrong
either way takes out machines before console_init(). Returning values
based on the result of GET_APIC_VERSION() has a predecent, get_maxlvt().
-- wli
prev parent reply other threads:[~2004-06-03 23:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-03 10:13 Herbert Xu
2004-06-03 23:20 ` Andrew Morton
2004-06-03 23:37 ` William Lee Irwin III
2004-06-03 23:44 ` Andrew Morton
2004-06-03 23:48 ` William Lee Irwin III [this message]
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