Per-instance devpts

H. Peter Anvin hpa at
Fri Aug 1 12:37:57 PDT 2008

Dave Hansen wrote:
> On Fri, 2008-08-01 at 11:12 -0700, H. Peter Anvin wrote:
>> 1. /dev/ptmx would have to change to a symlink, ptmx -> pts/ptmx.
> ...
>> I worry #1 would have substantial user-space impact, but I don't see a 
>> way around it, since there would be no obvious way to associate 
>> /dev/ptmx with a filesystem.
> Are your worries just about replacing what is now a normal file with a
> symlink, and the behavioral changes that come with that?  
> I wonder if using a bind mount for the file would be more robust.  We
> wouldn't, of course, be able to do it persistently, but I bet it would
> be something we could count on udev to do for us.

No, I'm concerned about the changes needed for udev and setup scripts.


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