[PD-dev] memory locking policy

Tom Schouten doelie at zzz.kotnet.org
Wed Oct 20 11:28:05 CEST 2004


On Wed, Oct 20, 2004 at 11:26:56AM +0200, Tom Schouten wrote:
> On Wed, Oct 20, 2004 at 12:29:36PM +0200, Tim Blechmann wrote:
> > > what sets the upper limit actually?
> > from what i understand there is no actual limitation in memory ...
> > 
> > i found this posting on the linux kernel mailing list by Chris Friesen:
> > > and that the apps may segfault if
> > > they try to write to newly allocated memory and there is no more left.
> > > It will still be possible to segfault on newly allocated stack as
> > > well. 
> > 
> > so it depends on _when_ it's written to the memory ...
> > 
> > cheers ... tim
> >
> 
> it seems this indeed can only be solved by allocating everything
> in advance.. so what you suggest might be a good idea.
> 
> maybe a special-purpose malloc would do the trick?

i mean, one that does not free the pages to the kernel.
like pdp works :)





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