On Tue, 2005-05-17 at 10:45 +1200, Mike Honeyfield wrote: > On 5/17/05, Ignacio Vazquez-Abrams <ivazquez@xxxxxxxxxxxx> wrote: > > On Tue, 2005-05-17 at 10:29 +1200, Mike Honeyfield wrote: > > > I am just wondering the reasoning behind having the experimental > > > option "Use register arguments" on in the kernel config. > > > > > > It has caused some issues for me, have since fixed it, but was > > > wondering why an experimental feature that could/can break the ABI for > > > 3rd party binary only modules would be enabled? > > > > Speed. Pushing data onto the stack takes longer than just shoving it > > into a register. > > > > So the speed improvement is enough to justify this? > > I could understand Fedora Core's kernels have this feature, but was a > bit suprised to see the same issue in RHEL. why? This only impacts binary modules, and in the process of porting those to 2.6 the vendor needs to "fix" this up just as well. That is the same for FC and RHEL.
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