Re: passing mem= at boot with 2.2.14pre9 and above?

[Designer Seven <designer_7 yahoo com>]

Jay,

Thanks for replying. I have already figured it out
with mem=256M. However, in previous kernels, 2.2.13
and below, you could actually put quotes around it
like mem="256M" and it still worked. I guess something
changed that resulted in quotes not being parsed
correctly?

D.

--- Jay.Estabrook@compaq.com wrote:
> 
> >>> Designer Seven said:
> > 
> > I just wanted to confirm if anyone else is having
> this
> > problem... or if they could try to verify it.
> > 
> > All kernels between 2.2.14pre9 and 2.2.14pre17
> have
> > had this problem on my Miata.
> > 
> > The problem is, if I specify the amount of RAM at
> > MILO:
> > 
> > boot sda3:boot/vmlinux.gz mem="256M"
> > 
> > the kernel boots and decides that there is 0MB of
> RAM.
> > If I leave out the mem= parameter, it recognizes
> the
> > 256MB or RAM and I can boot fine.
> 
> Syntax should simply be:
> 
>     boot sda3:boot/vmlinux.gz mem=256M
> 
> I tested this on an LX booting a generic 2.2.14
> kernel from SRM, and it
> worked fine. Note that earlier 2.2.14-preX kernels
> might have had this
> broken, which may be what you see. Or possibly it's
> something that MILO
> is actually doing something with, and getting it
> wrong.
> 
> Please try the released 2.2.14 and see if it works
> better for you.
> 
> Just out of curiosity, why bother to specify what it
> already knows?
> 
> The functionality was added for various reasons, one
> of which is to
> "reserve" some physically contiguous memory that
> won't be managed by
> the kernel; can you say DMA memory for 3D
> accelerators? ;-}
> 
> --Jay++
> 
>
-----------------------------------------------------------------------------
> Jay A Estabrook                            Alpha
> Engineering - LINUX Project
> Compaq Computer Corp. - MRO1-2/K20         (508)
> 467-2080
> 200 Forest Street, Marlboro, MA  01752    
> Jay.Estabrook@compaq.com
>
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> 
> 
> 
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