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KernelTrap.org: Interview: Rik van Riel

Feb 26, 2002, 22:36 (3 Talkback[s])
(Other stories by Jeremy Andrews)
JA: You continue to develop your VM, frequent updates being made available. How has the VM changed since it was part of the main kernel? How stable is it?

Rik van Riel:The fact that my VM code is no longer in the kernel has two positive effects. First I don't have to worry too much about stability or code freezes, I can just develop the code in the direction of better quality without having to be afraid of changes. Secondly I can integrate bugfixes much quicker.

This has lead to my reverse mapping based VM becoming stable within a few months of me picking it up again; it is now stable to the point where it survives the kernel torture lab Bob Matthews is running at RedHat and both Alan Cox and Michael Cohen have integrated the patch into their kernel tree. I suspect the rmap VM isn't as fast as some of the other VM code out there, but it does seem to hold up somewhat better in strange situations.

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