Re: [gentoo-hardened] hardened-sources shrinks Processor Family list

[Tóth Attila]

Patch needs a minor modification for a single hunk in order to get it
applied on 3.6.7-hardened to 3.7.0-hardened. MCORE2 has also specified for
X86_ALIGNMENT_16 and X86_P6_NOP, but the patch would not introduce COREI7*
for those options. Also there are two instances of CORE2 in
security/Kconfig. I've applied a modified patch on hardened sources 3.7.0
and compiled it on two machines using corei7 (E5620) and corei7-avx
(2630QM). Both kernels are seem to do fine, I notice nothing unusual.

However I have to also add, that on the png images mentioned in the git
entry showing the result of the ANOVA analysis I notice only P values over
0.05, not below. So for me it seems all these optimizations are
non-significant. Despite of the clear tendency, even for core2 compared to
generic_x86. Also I don't see the comparison between core2 and corei7*.
Which would be the most important. Since most users would start changing
from core2 to corei7* and not from generic_x86. Although it's highly
possible, that I'm reading the results wrong. So please confirm.

Merry Christmas:
Dwokfur
-- 
dr Tóth Attila, Radiológus, 06-20-825-8057
Attila Toth MD, Radiologist, [phone]

2012.December 21.(P) 23:42 időpontban Francisco Blas Izquierdo Riera
(klondike) ezt írta:
> El 21/12/12 22:05, Grant escribió:
>> It turns out the extra choices are due to this patch:
>> https://github.com/init6/init_6/blob/master/sys-kernel/geek-sources/files/3.7.1/fix/kernel-37-gcc47-1.patch
>> I'm sorry to have bothered the hardened list with this. - Grant
> Actually looks like a quite interesting patch on the Gentoo spirit of
> letting the user choose an it doesn't imply big changes to the source
> (since only config seems to be changed), have you thought bringing it up
> to the kernel team? I'm CCing them here so they can share what they think.
>
>
>