| To: | "Anoop P.A." <Anoop_P.A@pmc-sierra.com> |
|---|---|
| Subject: | Re: Help in enabling HIGHMEM support |
| From: | Ralf Baechle <ralf@linux-mips.org> |
| Date: | Mon, 14 Dec 2009 17:35:09 +0000 |
| Cc: | linux-mips@linux-mips.org |
| In-reply-to: | <A7DEA48C84FD0B48AAAE33F328C020140457EE41@BBY1EXM11.pmc_nt.nt.pmc-sierra.bc.ca> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <Pine.LNX.4.64.0912131240100.24267@ask.diku.dk> <A7DEA48C84FD0B48AAAE33F328C020140457EE41@BBY1EXM11.pmc_nt.nt.pmc-sierra.bc.ca> |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mutt/1.5.20 (2009-08-17) |
On Mon, Dec 14, 2009 at 05:34:13AM -0800, Anoop P.A. wrote: > We have a requirement to use a bigger RAM (1 GB / 2GB) with a RM9000 > based SOC. I thought of going with HIGHMEM path rather than enabling > 64bit support thinking it will be easier. This sounds like sawing off 32 legs just to be able to make use of a free [1] wheelchair. > I have tried enabling HIGMEM in kernel. Board boots fine with a 512 MB > RAM plugged in. But if I connect a 1 GB RAM kernel will not boot. I am > not even getting single print from kernel. I am using linux-2.6.18 > kernel. > > It will be great if get any pointers suggestions in debugging this? With this amount of RAM, use a 64-bit kernel if you can. You'll be happy not to know about all the headaches you will never encounter. Ralf [1] Conditions apply. |
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