using mfs of size > 64Mb and system stability

[Barath S]

Thank you Arne. 
I didn't try with 'swap' option as my requirement is
to have the files in memory. I will test with 5.3 and
see it that works.
regards
--- Arne Wörner <arne_woerner at yahoo.com> wrote:   
> --- Barath S <barath_yes at yahoo.com.sg> wrote:
> > My intention is create a file system in memory of
> size
> > > 128Mb and use that for my application. But, I
> > couldn't do that as my system hangs whenever I
> create
> > a mfs of size > 64Mb. I did the following...
> > 
> > a) Configured memory file system of size 128Mb
> using
> > 'mdmfs' command with 'malloc' option. When I tried
> to
> > copy files to this mfs, m/c hanged after copying
> some
> > files. 
> > b) Then I rebooted by m/c and configured memory
> file
> > system of size 64Mb and this time the copying
> > operation was successful
> > c) I observed that the system hanged whenever I
> > configure a mfs of size > 64Mb and used that mfs
> > 
> > a) Can someone provide me hints on what could be
> the
> > problem ?
> >  
> I use R5.3. According to the man page mdconfig(8) a
> md of type
> malloc should use "-o reserve", if it is large and
> to be "filled"
> (I think the man page means "filled quickly"):
>   "If the -o reserve option is not set, creating and
> filling
>    a large malloc-backed memory disk is a very easy
> way to
>    panic a system."
> 
> Maybe that helps?
> 
> Did you try type "swap"?
> 
> -Arne
> 
> 
> 
> 		
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