linux-kernel - Re: why Linux kernel will update BIOS's interrupt remapping table base address ? why does Linux Kernel create a new table instead of the one that BIOS provided ?

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Message-ID: <CAE9FiQUw_kZ_cMh3H1eyzgifMdK=mZO6aR6GJkoweeESSDDUVw@mail.gmail.com>
Date:	Mon, 9 Jul 2012 21:41:36 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Lin-Bao Zhang <2004.zhang@...il.com>
Cc:	flyboy@...il.com, suresh.b.siddha@...el.com,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: why Linux kernel will update BIOS's interrupt remapping table
 base address ? why does Linux Kernel create a new table instead of the one
 that BIOS provided ?

On Mon, Jul 9, 2012 at 8:17 PM, Lin-Bao Zhang <2004.zhang@...il.com> wrote:
> for this thing , we have known that , we can append "x2apic_phys" to
> tell linux kernel we support x2apic physical mode.
> but I found that x2apic_phys is not enough .we still found panic info
> in RHEL6.2(2.6.32) kernel,but on linux kernel-3.4.4 ,no this issue
> again.  any comment for this bug ?

please post full boot log with kernel 3.4.4 and acpidump.

Thanks

Yinghai
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