Re: Re: Memory allocation problem

anand kumar
2003-05-04T19:40:37Z

Hi,

Thanks for immediate response. I used 2.4.20 kernel patched with
bigphys
area and got it working. I know that this patch is part of Suse
distribution. Is there any plans to incorporate this patch in
Redhat?
Is redhat 9.0 kernel equipped with this patch?

Rgds
Anand

On Thu, 01 May 2003 Mark_H_Johnson@Raytheon.com wrote :
>
> >The kernel version we are using is 2.4.18 (Redhat 8.0) and the
>total
> >amount of memory available in the box is 128MB
>
> >Is there any other mechanism to allocate large amount of
>physically
> >contiguous memory blocks during normal run time of the driver?
>Is this
> >being addressed in later kernels.
>
>I regularly use a patch (bigphysarea) recommended by Dolphin for
>use with
>their SCI cards. The copy I use is from a relatively old kernel
>(2.4.4)
>which applies with a few warnings but is otherwise OK. I did a
>quick search
>with Google for
> bigphysarea linux 2.4.18
>and found
>
>http://frmb.home.cern.ch/frmb/download/bigphysarea-2.4.18.patch
>or a more readable page at
> http://frmb.home.cern.ch/frmb/linux.html
>which appears to be a version updated for 2.4.18. I believe the
>original
>patch is maintained at
>
>http://www.uni-paderborn.de/fachbereich/AG/heiss/linux/bigphysarea.html
>
>There are apparently several drivers that already use this
>interface, but
>it does require a patched kernel.
>
>I am not aware of any effort to merge this into the main line
>kernel
>(though I would certainly appreciate that).
>
>--Mark H Johnson
> <mailto:Mark_H_Johnson@raytheon.com>
>
>

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