Messages in this thread | | | From | yodaiken@chelm ... | Subject | Re: MM deadlock [was: Re: arca-vm-8...] | Date | Sat, 30 Jan 1999 00:01:00 -0700 (MST) |
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> > Hi, > > On Tue, 26 Jan 1999 15:46:23 +0000 (GMT), alan@lxorguk.ukuu.org.uk (Alan > Cox) said: > > We don't need to solve the 100% case. Simply being sure we can (slowly) > > allocate up to 25% of RAM in huge chunks is going to be enough. Good point > > Ingo on one thing I'd missed - the big chunks themselves need some kind > > of handles since the moment we hand out 512K chunks we may not be able to > > shuffle and get a 4Mb block > > The idea was to decide what region to hand out, _then_ to clear it. > Standard best-fit algorithms apply when carving up the region.
If clearing involves remapping kernel address space, then its a rather complex process. kmalloc give virt_to_bus to device ... remap
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