From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sukadev Bhattiprolu <sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Subject: Re: [RFC] fix devpts mount behavior
Date: Tue, 24 Jan 2012 15:25:02 -0800
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To: Serge Hallyn <serge.hallyn-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>, Dave Hansen <haveblue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>, "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>, Andy Whitcroft <apw-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>, Linus Torvalds <torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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Serge Hallyn [serge.hallyn-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org] wrote:
| 
| That has nothing to do with /dev/pts/ptmx, whose perms are set based on
| the '-o ptmxmode=" argument, and default to 000 if not specified.  If
| /dev/ptmx is going to be a symlink to /dev/pts/ptmx, then we have to set
| the /dev/pts/ptmx perms to not be 000, or users won't be able to create
| ptys.

If we are going to make 'newinstance' the default, maybe the default
ptmx mode could be changed to 0666 in the kernel too ?