[tor-bugs] #20773 [Applications/Tor Browser Sandbox]: Stop mounting `/proc` in the various containers once this is feasable.

[Tor Bug Tracker & Wiki]

#20773: Stop mounting `/proc` in the various containers once this is feasable.
----------------------------------------------+-------------------------
 Reporter:  yawning                           |          Owner:  yawning
     Type:  enhancement                       |         Status:  new
 Priority:  Medium                            |      Milestone:
Component:  Applications/Tor Browser Sandbox  |        Version:
 Severity:  Normal                            |     Resolution:
 Keywords:                                    |  Actual Points:
Parent ID:                                    |         Points:
 Reviewer:                                    |        Sponsor:
----------------------------------------------+-------------------------

Comment (by yawning):

 As far as I can tell, the tor process container can do without `/proc`.
 It's clear cut for the no PT case since tor appears to only use
 `/proc/meminfo` to derive `MaxMemInQueues` which is irrelevant for this
 use case.

 obfs4proxy appears to read from `/proc` as well upon cursory examination
 via `strings`, but it doesn't appear to crash and I can browse the web in
 a container sans procfs.  However before I disable mounting it in the
 container, I'd like to see what exactly it's doing.

 I need to strace tor + obfs4proxy anyway when I decide to tackle #20782...

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20773#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online