On Tue, Nov 15, 2005 at 11:46:30AM -0500, Giridhar Pemmasani wrote:
> Arjan van de Ven wrote:
>
> > the same as 2.4 effectively. 2.6 also has (and I wish it becomes "had"
> > soon) an option to get 6Kb effective stack space instead. This is an
> > increase of 2Kb compared to 2.4.
>
> It has been asked couple of times before in this context and no one cared to
> answer:
>
> Using 4k stacks may have advantages, but what compelling reasons are there
> to drop the choice of 4k/8k stacks? You can make 4k stacks default, but why
> throw away the option of 8k stacks, especially since the impact of this
> option on the kernel implementation is very little?
One important point is to get remaining problems reported:
All the known issues in e.g. xfs, dm or reiser4 should have been
addressed.
But how many issues have never been reported because people noticed that
disabling CONFIG_4KSTACKS fixed the problem for them and therefore
didn't report it?
I experienced something similar with my patch to schedule OSS drivers
with ALSA replacements for removal - when someone reported he needed an
OSS driver for $reason I asked him for bug numbers in the ALSA bug
tracking system - and the highest number were 4 new bugs against one
ALSA driver.
Unconditionally enabling 4k stacks is the only way to achieve this.
And the fact that it might force people to help with the development or
at least use open source drivers for their hardware instead of
binary-only Windows drivers isn't exactly a disadvantage for the
development of Linux.
> Giri
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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