Re: A few kernel-related questions: UVM, W^X and PAE

2011-10-03 Thread Mark Kettenis
Date: Sun, 2 Oct 2011 18:55:00 +0100 From: Stuart Henderson s...@spacehopper.org On 2011/10/02 07:38, Barbier, Jason wrote: 3. What's the point in keeping sys/arch/i386/i386/pmapae.c? Are there any plans for re-enabling PAE support? PAE will always be needed for 32bit processors as I

Re: A few kernel-related questions: UVM, W^X and PAE

2011-10-03 Thread Vadim Zhukov
Thank you all who replied! 2011/10/2 Ted Unangst t...@tedunangst.com: On Fri, Sep 30, 2011, Vadim Zhukov wrote: Hello all. After some talks on opennet.ru I dived into the sys/uvm/ and other places, having a few more or less tech-nical questions raised now. Can anybody answer them? Very

Re: A few kernel-related questions: UVM, W^X and PAE

2011-10-02 Thread Barbier, Jason
3. What's the point in keeping sys/arch/i386/i386/pmapae.c? Are there any plans for re-enabling PAE support? PAE will always be needed for 32bit processors as I understand it. There are some 32bit processors out there that the boards will allow for more than 4 gigs of ram But you will need PAE to

Re: A few kernel-related questions: UVM, W^X and PAE

2011-10-02 Thread Stuart Henderson
On 2011/10/02 07:38, Barbier, Jason wrote: 3. What's the point in keeping sys/arch/i386/i386/pmapae.c? Are there any plans for re-enabling PAE support? PAE will always be needed for 32bit processors as I understand it. There are some 32bit processors out there that the boards will allow for

Re: A few kernel-related questions: UVM, W^X and PAE

2011-10-02 Thread Ted Unangst
On Fri, Sep 30, 2011, Vadim Zhukov wrote: Hello all. After some talks on opennet.ru I dived into the sys/uvm/ and other places, having a few more or less tech-nical questions raised now. Can anybody answer them? Very nice. 1. amap_share_protect() in sys/uvm/uvm_amap.c is totally unused,

A few kernel-related questions: UVM, W^X and PAE

2011-09-29 Thread Vadim Zhukov
Hello all. After some talks on opennet.ru I dived into the sys/uvm/ and other places, having a few more or less tech-nical questions raised now. Can anybody answer them? 1. amap_share_protect() in sys/uvm/uvm_amap.c is totally unused, is there any point for keeping it around? 2. Am I right