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DateSun, 25 Apr 2004 04:19:07 +0100 (BST)
FromJames Simmons <>
SubjectRe: Change number of tty devices
> First off, thanks for the reply. Does lowering the number of tty devices
> interfer with the creation of serial consoles? Can't they start at the
> same major number without an issue?

No. It when we need more than 64 VCs.

> > What is even more is that there exist ioctls that return shorts 
> > which means only 16 VCs can be accounted for on a VT. 
> 
> So is my limit wrong? Should I up the lower limit to 16 to account for
> this? 

I would recommend it. 

> > When the kernel supports multi-desktop systems we will have to deal
> > with the serial and VT issue. Most likely the serial tty drivers will
> > be given a different major number. 
> 
> Why isn't this done now?

We are in a stable release.

> > I personally believe that because
> > of the 16 bit limit that there should be 16 VCs per VT terminal. 
> 
> That does make sense.
> 
> Just a side note: I have been running with 12 (0 - 11) tty devices
> without issue. I haven't tried a serial console, but will shortly, just
> to see if it interferes with serial console creation.

It should be no problem. I hate hard limits tho. I rather have a lean 
system that only allocates resources when we want them.


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