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List:       linux-smp
Subject:    Re: Flag for switching back to conservative memory management ?
From:       "Michael T. Bird" <bird () sd ! aetc ! com>
Date:       1999-06-30 17:57:32
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Joachim Gantenberg wrote:
> 
> Oliver Stahlhut wrote:
> >
> > Hello all!
> >
> > In the last months I had to "ALT-PRN-B"/reset many "almost dead" Linux
> > numbercrunchers (kernel 2.2.[0-10], glibc2 based, >=512MB mem, 1GB Swap,
> > 2 PentiumII) here in our cluster, who seem to have died because of
> > memory mismanagement. If I start the following "wicked" ;) program twice
> > (in parallel) any of our "better" machine crashes silently once the mem
> > & swap are used up. If I start it on a 2.0.x machine, the job won't do
> > any harm.
> >
> > Can anyone else reproduce my problem ... is it due to memory
> > overcommitment ? - if yes, how can I turn it off ;)
> >
> 
> I can reproduce it with only one program eating all memory. That why I asked
> the memory allocation question over 2 month ago. I want to have hard limits
> so that even requests for more memory lets say than MEM+SWAP-10MB (for kernel
> and shells) are refused. Unfortunately I got no answer. But I think there is
> no memory "accounting" at the moment
> 
> Cheers
> Joachim
> --
> 
> ------------------------------------------------------------------------------
> Joachim Gantenberg
> ------------------------------------------------------------------------------
> Biomedizinische Technik | email : J.Gantenberg@biomed.ruhr-uni-bochum.de
> MA 4 / 55               | WWW   : http://www.biomed.ruhr-uni-bochum.de/~ganti/
> Ruhr-Uni-Bochum         | tel   : (+49) 234 700 6683
> 44780 Bochum / Germany  | fax   : (+49) 234 7094 117
> ------------------------------------------------------------------------------
> -
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Doesn't `limit memoryuse N` do what you want?

-- 
Michael T. Bird               
bird@sd.aetc.com
-
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