Re: Crash Dump Region

["Zou, Nanhai" <nanhai.zou@xxxxxxxxx>]

> -----Original Message-----
> From: Zou, Nanhai
> Sent: 2007年3月6日 10:11
> To: 'Horms'
> Cc: Linux-IA64; fastboot
> Subject: RE: Crash Dump Region
> 
> > -----Original Message-----
> > From: Horms [mailto:horms@xxxxxxxxxxxx]
> > Sent: 2007年3月6日 9:57
> > To: Zou, Nanhai
> > Cc: Linux-IA64; fastboot
> > Subject: Crash Dump Region
> >
> > Hi,
> >
> > I am currently looking over the code that places the crashdump
> > region into /proc/iomem, and the code that determines its base
> > address if it is not passed on the kernel comamnd. It seems to me that
> > the current code allows the crashkernel to be placed incide a
> > /proc/iomem region of any type. Is this behaviour correct?
> > If not, should it be restricted to "System RAM" regions?
> >
>  I not sure if I understand your question.
>  Kernel will find a big enough region inside efi memmap with WB attribute,
> excluding all the other reserved regions.
> 
Oh, 
  You mean we should check is_memory_available(md) instead of only check efi_wb(md) in kdump_find_rsvd_region? 
 Yes, I think that is better.
 
 Thanks
 Zou Nanhai

>  Zou Nanhai.
> 
> > --
> > Horms
> >   H: http://www.vergenet.net/~horms/
> >   W: http://www.valinux.co.jp/en/

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