Why do I have to use LD_ASSUME_KERNEL=2.2.5

[Chong Yu Meng]

LD_ASSUME_KERNEL tells the kernel not to use the New Posix Thread 
Library (NPTL), as far as I can tell. Java 1.3.x will also not work 
without it. Someone said on the Tomcat mailing list that this will slow 
the system down, but I don't think so. At least not on my system, as far 
as I can tell.

Regards,
pascal chong


James McDonald wrote:

> I recently found that mplayer was segfaulting every time I launched it 
> under my 2.6.test10 kernel. I thought it may have been a bodgy fedora 
> mplayer_1.0-0.2.pre2.fr_i386.rpm but when I uninstalled it and 
> compiled mplayer from source I had the same segfault problem.
>
> However if I export LD_ASSUME_KERNEL=2.2.5 it works.
>
> My standard install of rpm which is rpm-4.2-0.69 also will not work 
> unless the above is in the environment.
>
> Can anyone explain If there is any way to compile these apps under a 
> 2.6 kernel so that I don't need to use the LD_ASSUME_KERNEL option 
> when using them.
>
> I have ended up making the LD_ASSUME_KERNEL=2.2.5 system wide 
> environment but don't know if this is a bad thing or not.
>