When compiling LFS for my first time under Fedora core 2 (2.6.5-1.358) Ive built glibc using the --enable-add-ons=linuxthreads instead of --enable-add-ons=npt1 as the book says. The reasoning being that when i used npt1 this is all i get back:
Ive managed to get through to the final LFS system build of glibc without any further problems, but will my final system be stable or crumble like cheesecake?

hi

use nptl not npt1 it is an "l" not a 1
l comes after k alphateical order

thats a common problem when looking at terminal fonts that make the differences between characters that are almost identical - NULL.
1 looks like l with some fonts. (and the l looks like the bar/pipe: |)

It makes me wont to shoot those font designers sometimes....

Damn... Well now i feel really stupid....

Well i finished compiling lfs and its working using linuxthreads but there are a few glitches ive noticed, mainy when there is high hard disk activity everything tends to lag. At first i thought there might be a glitch in ex3 journaling, but i switched back to ex2 and the problem is still there...

Anyway i want to make the best of this mistake. Whats the difference between linux threads and nptl?

Type that in a search in any search engine.
should result in more than enough information.

Easiest answer is that nptl is "New PThread Library", which supports dynamic stacks, whereas linuxthreads is static.
(you will see this issue in Windows Emulation Gaming: like on Cedega...)

nptl will help make processes run faster, while using as little space as possible..

For apps to benefit from NPTL, do they have to be compiled against glibc that supports NPTL? Or will a previously compiled program automatically benefit from running on a kernel that supports NPTL?

Thanks.

http://www.slackware.com/changelog/current.php?cpu=i386

win32sux posted part of this earlier in the slackware forum, might want to keep an eye on that thread and see what experience others are having with this method.

Just to tie this up, the new build of lfs is working awsomly. KDE compiled without a hitch, and looks and works awsome. If you compare fedora core 3 to my newly built system there is no chance... It boots in a fraction of the time, many times more stable. Even seems to multitask better. On fedora when i am compiling everything seems to run sluggish, but with the new lfs i dont even notice (as long as i dont try to play ut2004 :P).

Im looking foreward to testing the latest wine out but havent gotten around to it yet...

System:
CPU: AMD Sempron 2800+
RAM: Dual DDR400
Mobo: Asus K7