linux-kernel - Re: kexec boot regression

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Date:	Tue, 15 Dec 2009 11:04:55 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jens Axboe <jens.axboe@...cle.com>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>, mingo@...e.hu,
	rdreier@...co.com, Suresh Siddha <suresh.b.siddha@...el.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: Re: kexec boot regression

Jens Axboe wrote:
> On Tue, Dec 15 2009, Yinghai Lu wrote:
>> [   13.018720] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0x80000000-0x8fffffff] (base 0x80000000)
>>
>> [   13.100724] [Firmware Bug]: PCI: MMCONFIG at [mem 0x80000000-0x8fffffff] not reserved in ACPI motherboard resources
> 
> On a "normal" non-kexec boot, I get:
> 
> [   12.173583] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0x80000000-0x8fffffff] (base 0x80000000)
> [   12.184075] PCI: MMCONFIG at [mem 0x80000000-0x8fffffff] reserved in E820
> [   12.216874] PCI: Using configuration type 1 for base access
> 

can you run following scripts in first kernel?

cd /sys/firmware/memmap
for dir in * ; do
  start=$(cat $dir/start)
  end=$(cat $dir/end)
  type=$(cat $dir/type)
  printf "%016x-%016x (%s)\n" $start $[ $end +1] "$type" >> /tmp/memmap.txt
done

and send out /tmp/memmap.txt

what is your kexec tools version? could be too old?

YH

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