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Re: limited Memory question...

To: "machael thailer" <dony.he@huawei.com>
Subject: Re: limited Memory question...
From: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Date: Wed, 9 Jan 2002 01:05:30 -0200
Cc: <linux-mips@oss.sgi.com>
In-reply-to: <001b01c198ba$0fc82b00$9b6e0b0a@huawei.com>
References: <003301c198af$1c0d0a80$9b6e0b0a@huawei.com> <20020109015128.GB23506@conectiva.com.br> <000f01c198b6$d627ffe0$9b6e0b0a@huawei.com> <20020109024443.GD23506@conectiva.com.br> <001b01c198ba$0fc82b00$9b6e0b0a@huawei.com>
Sender: owner-linux-mips@oss.sgi.com
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Em Wed, Jan 09, 2002 at 11:02:23AM +0800, machael thailer escreveu:
> 
> > Em Wed, Jan 09, 2002 at 10:39:18AM +0800, machael thailer escreveu:
> > > > > I have a question to need you help. Our MIPS-based custom board has 
> > > > > only
> > > > > 8M memory.When I want to insmod a 24M module, it often panics and says
> > > > > "out of memory...".
> > > > 
> > > > a kernel module? 24MiB? ouch, if that is the case, the only way is to 
> > > > get
> > > > more memory for your board, as kernel memory is not swappable...
> > > 
> > > Yes, it is a kernel module.  
> > > But unfortunately, the memory is fixed on our board and we cannot add 
> > > more memory.
> > > Any other ideas?
> > 
> > What does this module does that takes so much memory? One possible idea
> > akpm talked about was to reduce NR_CPUS to the number of CPUs in your eval
> > board if that is something relevant to the reason why your module takes so
> > much memory, does it have a firmware linked? If so, don't link it and load
> > it from userspace, block by block, if this is possible, etc, other than
> > these suggestions one could only give more ideas if the source code is
> > available for review.
> 
> 24M is the size of the module, not the memory that it takes.

what is the output of:

size your_module.o

?

- Arnaldo

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