On April 19, 2016 12:03:47 PM PDT, ebied...@xmission.com wrote:
>"H. Peter Anvin" <h...@zytor.com> writes:
>
>>>- Support for reserving ptys for the system devpts instance using
>>>  /proc/sys/kernel/pty/reserve needs to be removed.
>>>
>>>Eric
>>
>> pty capping should probably be a devpts mount option
>
>There is a max option so pty capping is a per devpts option.
>
>> , and perhaps a
>> sufficiently privileged user could be allowed to set another mount
>> option to allow that instance to dip into the reserved pool or exempt
>> it completely from the global limit as set in sysctl.
>
>I agree that we could keep the reserved pool, and add a new way to
>access it.  However no piece of existing userspace could use it.  So
>the
>simplest thing to do (unless something actually breaks), is to just
>remove the reserve pool.
>
>Eric

Perhaps a (privileged) option to exempt from the global limit, then.  Something 
we can implement if asked for.

However, I wouldn't be 100% that the reserved pool isn't used.  Someone added 
it presumably for a reason.  An administrator could say it and we'd have no 
idea.
-- 
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