You are not logged in.
- Topics: Active | Unanswered
#1 2007-10-24 23:24:08
- wooptoo
- Member
- Registered: 2007-04-23
- Posts: 78
- Website
How to enable NX bit/eXecute Disable on Arch?
I have a CPU that supports NX bit / eXecute Disable extension, how can i enable it on arch? do i have to recompile the kernel (i have 2.6.23-ARCH) to use HIGHMEM64 or is there another way?
Thanks
Offline
#2 2007-10-25 00:37:58
- lucke
- Member
- From: Poland
- Registered: 2004-11-30
- Posts: 4,018
Re: How to enable NX bit/eXecute Disable on Arch?
If I'm not mistaken - if you're using i686, you indeed have to recompile the kernel with HIGHMEM64 enabled.
Offline
#3 2009-02-24 10:51:03
- wooptoo
- Member
- Registered: 2007-04-23
- Posts: 78
- Website
Re: How to enable NX bit/eXecute Disable on Arch?
I recently switched to Arch64 and NX bit is still not enabled. Why?
I have a 64 bit CPU, NX bit is enabled in BIOS, I can't find HIGHMEM64 in /proc/config.gz, there is also no line in the logs stating that NX is enabled.
Offline
#4 2009-04-24 11:26:57
- ckristi
- Member
- From: Bucharest, Romania
- Registered: 2006-11-21
- Posts: 225
Re: How to enable NX bit/eXecute Disable on Arch?
You have to add this to your boot line (/boot/grub/menu.lst -> the kernel line):
noexec=on noexec32=onIn love I believe and in Linux I trust
Offline