On Thu, 2009-02-05 at 15:44 -0800, tgo wrote: > Package: linux-image-2.6.24-e > Version: 2.6.24-6~etchnhalf.7 > On both vmlinuz-2.6.18-5-686 and vmlinuz-2.6.24-etchnhalf.1-686 > kernels, the debian system maps the heap, binary data, and other data > sections as rwx, instead of the normal and sensible rw-. This is a hardware limitation of i386 page tables - these permissions cannot be set independently. To overcome this limitation, you need a kernel that uses PAE page tables (-686-bigmem or -amd64 flavour) and a processor that supports the "NX" flag (look for "nx" on the "flags" line in /proc/cpuinfo"). Ben.
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