Messages in this thread | | | Date | Wed, 15 Sep 2004 08:07:01 -0700 | From | "Martin J. Bligh" <> | Subject | Re: [patch] tune vmalloc size |
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--Andi Kleen <ak@muc.de> wrote (on Wednesday, September 15, 2004 15:29:53 +0200):
> Ingo Molnar <mingo@elte.hu> writes: > >> there are a few devices that use lots of ioremap space. vmalloc space is >> a showstopper problem for them. >> >> this patch adds the vmalloc=<size> boot parameter to override >> __VMALLOC_RESERVE. The default is 128mb right now - e.g. vmalloc=256m >> doubles the size. > > Ah, Karsten Keil did a similar patch some months ago. There is > clearly a need. > > But I think this should be self tuning instead. For a machine with > less than 900MB of memory the vmalloc area can be automagically increased, > growing into otherwise unused address space. > > This way many users wouldn't need to specify weird options. So far > most machines still don't have more than 512MB.
It already does that, IIRC.
M.
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