[ibm jdk 1.3.1] Segmentation fault with Fedora core 1

[M A Young]

On Thu, 13 Nov 2003, Jakub Jelinek wrote:

> On Thu, Nov 13, 2003 at 09:12:02AM +0100, pascal.rapaz at LesRP.ch wrote:
> > Yes!
> >
> > But I'm very surprised because the LD_ASSUME_KERNEL=2.2.5 must desactive
> > the nptl option and that work fine in RH 9.0 but not in Fedora Core.
> > Moreover this option is part of the Fedroa release notes.
>
> LD_ASSUME_KERNEL=2.2.5 works, just run:
>
> LD_ASSUME_KERNEL=2.2.5 ldd someprog
> LD_ASSUME_KERNEL=2.4.19 ldd someprog
> ldd someprog
>
> and see what libraries are used (should be /lib/libc.so.6 in the first case,
> /lib/i686/libc.so.6 in second and /lib/tls/libc.so.6 in third).
>
> Some buggy JDKs don't work even with LinuxThreads, or just with one
> of LinuxThreads alternatives (non-FLOATING_STACKS (2.2.5)
> or FLOATING_STACKS (2.4.19)).

The other thing that can cause problems is exec-shield (though if it does
there is probably a fault in the program). Try
echo "0" >/proc/sys/kernel/exec-shield
echo "0" >/proc/sys/kernel/exec-shield-randomize
and see if your program runs.

	Michael Young