[Xorg] The big multiconsole nasty
eich at pdx.freedesktop.org
Wed Jul 7 05:36:44 PDT 2004
Keith Packard writes:
> Around 1 o'clock on Jul 7, Michel =?ISO-8859-1?Q?D=E4nzer?= wrote:
> > I basically agree, let's not pretend a root daemon is all that much
> > better though. Either will probably be better in some aspects, worse in
> > others.
> I concur with this sentiment -- any code directly manipulating the device
> registers runs a reasonable risk of corrupting the machine state. This
> makes the X server or this proposed daemon equal in many ways to the
For HW access this is certainly true, but it also deosn't make the kernel
a better choice than user land.
On the other hand a sloppy written user land code will probably just
segfault while similar flaws in a kernel module may mess up your entire
> One thing I'd like to see is a general reduction of code that runs in the
> same address space as the 'scary' bits. Starting with the device
> initialization and mode selection logic makes good sense as none of that is
> particularily performance sensitive. This should give us significant
> freedom of choice in implementation.
>From a security point of view it is certainly the correct apporach to
separate the scary parts from the rest of the Xserver.
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