Re: randomize_va_space

Peter Ruprecht schrieb:
> It looks like randomize_va_space has been turned on by default in the
> recent RHEL 5 kernels as a security feature.
>
> We have a really ancient application that gives strange I/O errors when
> that kernel parameter is set, though.  It's easy enough to unset it
> (echo 0 > /proc/sys/kernel/randomize_va_space) but before I start doing
> that wholesale I wonder if any of you kernel experts out there know
> whether there would be any unanticipated adverse effects or interactions
> from doing so.  Besides less security of course.

have the user start a new shell with
setarch -R i386 tcsh
or some such. The new shell has then a personality where 
randomize_va_space is 0.

Works for me.

HTH,
Kay

> Thanks,
> Peter