Re: [coLinux-users] DEP/PAE

[Rasmus A. <ra...@ab...>]

>>> Strange, I run 0.6.3. with PAE on my Athlon64 without
>>> any problems. Is this only a problem when it runs as a service?
>>
>> I have no problem at all with hardware DEP enabled on my Thinkpad X41 
>> (intel CPU, intel chipset) whether I run it as a service or user 
>> process. Possibly the problem is tied to specific hardware.
> 
> http://www.intel.com/products/processor_number/index_sitelet_view2.htm
> All CPUs with "Execute Disable Bit" (last column in tab) _AND_
> SP2 installed have this poblem.

It still is not the case here. I do have an intel Centrino with Execute 
Disable Bit. I do have SP2 installed. I run 0.6.3 and I have *no* 
problems running with /NoExecute=OptOut (also note that I haven't opted 
out CoLinux or any part of it). And I run CoLinux a lot, it's 
auto-starting as service. I haven't had one single problem except that 
if I set CoLinux memory to exactly 128 MB, I always get a hard hang 
(physical power-off needed) the moment the service starts. Less or more 
memory to CoLinux works fine.

I've done some testing with DEP, running rough software, and it does 
protect my system as intended.

I never ran any previous versions of CoLinux, but I got the impression 
from wikis that it was a problem with earlier versions, not 0.6.3. On 
the other hand, you (Henry) seem to be a developer so I take your word 
on it when you say it's not fixed even in 0.7.1. Maybe the Centrino has 
a slightly different implementation that happens to work better with 
CoLinux? I've run it on 1,50 GHz (M 758) and 1,60 GHz (M 778) Centrinos.