Messages in this thread | | | Date | Sun, 20 Apr 2008 17:21:31 +0300 | From | Adrian Bunk <> | Subject | Re: x86: 4kstacks default |
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On Sun, Apr 20, 2008 at 09:05:40AM -0500, Eric Sandeen wrote: > Adrian Bunk wrote: > > > But the more users will get 4k stacks the more testing we have, and the > > better both existing and new bugs get shaken out. > > > > And if there were only 4k stacks in the vanilla kernel, and therefore > > all people on i386 testing -rc kernels would get it, that would give a > > better chance of finding stack regressions before they get into a > > stable kernel. > > Heck, maybe you should make it 2k by default in all -rc kernels; that > way when people run -final with the 4k it'll be 100% bulletproof, right? > 'cause all those piggy drivers that blow a 2k stack will finally have > to get fixed?
I'm arguing for aiming at having all 32bit architectures with 4k page size using the same stack size. Not for having -rc kernels differ from release kernels.
> Or leave it at 2k and find a way to share pages for > stacks, think how much memory you could save and how many java threads > you could run!
The only architecture that already defaults to 4k stacks is m68knommu, and I doubt they do it for many java threads...
>... > -Eric >...
cu Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed
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