linux-kernel - Re: [mm] Crashkernel memory reservation fails with 2.6.24-rc8-mm1

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Message-ID: <47A804A2.5020208@in.ibm.com>
Date:	Tue, 05 Feb 2008 12:09:30 +0530
From:	"Sachin P. Sant" <sachinp@...ibm.com>
To:	Vivek Goyal <vgoyal@...hat.com>, bwalle@...e.de
CC:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [mm] Crashkernel memory reservation fails with 2.6.24-rc8-mm1

Sachin P. Sant wrote:
> Bernhard Walle wrote:
>> * Vivek Goyal <vgoyal@...hat.com> [2008-02-04 19:38]:  
>>> Bernahard, any idea who is the competitor here?     
>> Hm ..., can you boot the kernel without crashkernel= and provide the
>> /proc/iomem?   
> Attached is the /proc/iomem output with and without crashkernel
> parameter.
>
> Adding debug gives this extra information.
>
> hm, page 02a9d000 reserved twice.
> crashkernel reservation failed - memory is in use
>
> Will try to add more debug statements.
Hm . no problem with 2.6.24-mm1.

early res: 4 [9dc00-a0bff] EBDA
early res: 5 [8000-11fff] PGTABLE
Reserving 128MB of memory at 32MB for crashkernel (System RAM: 9088MB)
 [ffffe20000000000-ffffe200001fffff] PMD ->ffff810001200000 on node 0

# cat /proc/iomem
......
 008b8000-0099dc8b : Kernel bss
  02000000-09ffffff : Crash kernel
c7fcae00-c7fcf7ff : ACPI Tables
.....

Thanks
-Sachin

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