[geeks] Project Etude

Jonathan C. Patschke jp at celestrion.net
Mon Sep 10 13:07:47 CDT 2007


On Mon, 10 Sep 2007, Francois Dion wrote:

>>> On Mon, Sep 10, 2007 at 12:42:38PM -0500, Jonathan C. Patschke wrote:
>>>> However, since the system ID is cached in (true) kernel memory, it's
>>>> shared across zones.  In fact, nothing you can do in a zone is
>>>> supposed to give you write access to it.
>>>
>>> You can't run the hostid hack within a zone?
>>
>> Nope, because it's cached in true kernel memory, which is not writable
>> from any but the global zone.
>
> One word: Dtrace

That works for programs that call sysinfo, not programs that sift
through kmem.

-- 
Jonathan Patschke     )  "So far, 99% of illegal activity has been caused
Elgin, TX            (    by criminals."
USA                   )                                    --David Willis



More information about the geeks mailing list