Re: Run linux in ramdisk(tmpfs) and use a mounted HD for files cause memory and CPU overflow!

[Jan Hudec <bulb@ucw.cz>]

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On Tue, Jun 28, 2005 at 15:06:55 -0300, Ewerton Romulo wrote:
> Thanks for answer Jan
> 
> > > I am building a very small linux system to boot off an IDE-HD module
> > > and run from a ramdisk.
> > 
> > Ramdisk *OR* tmpfs? They are completely different things.
> 
>   Sorry. I can say that is a ramdisk formatted to use tmpfs
> filesystem! If I need to select one, so can I say that is a tmpfs!

Sorry, it isn't. Nothing can be formated to use tmpfs, because tmpfs is
no-device filesystem. Tmpfs lives in RAM, but directly, without
a ramdisk. On the other hand ramdisk emulates a block device with memory
and has to be formated with some block device filesystem -- which tmpfs
isn't.

[skipped lot of exclamation marks with intersparsed small bits of text]

> > Anyway, could you provide contents of /proc/meminfo, /proc/slabinfo,
> > /proc/mounts and /proc/swaps when the bad things are happening?
> 
>   I´ll take a look in it and post here!

Ok. _when_ you post it, there will be something to talk about.

Oh, include also exact version of kernel you are using (including from
which distribution or whether it's official kernel), contents of
/proc/modules and if it's a kernel you compiled it's config.

>    In this case I only use it to see if I had different result! I try
> to mount a fat partion too!! Same result!!!

That mostly rules out the filesystem driver. Ok.

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						 Jan 'Bulb' Hudec <bulb@ucw.cz>

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