Re: [BProc] BProc & /dev/tty - anything to watch out?

[<ha...@no...>]

Hi, me again :-)

Seemes to be possible to let this always hold for masq-ed process:

  current->pgrp == current->bproc.masq->pgrp
  current->session == current->bproc.masq->session

(these values therefore mostly differ from current->pid)

Looks strange at first, some basic BProc ideas seemes to be shaken,
but it may be workable approach. Comments welcome, of course.

There are hunderds of places where pgrp/session is used in some
way. No chance to even look at all of them.

However there are just few places where kernel compares pid to
pgrp/session. Should be easy to fix any broken details.

I modified masq_setsid() and masq_setpgid() to also save new values to
normal pgrp and session and things look promissing.  Now I can login
to node via ssh without any complaints, run some commands and try to
logout - where it hangs now (in select(), do not have details yet).

Now it also complains (on master) once per every command run from
login bash:

   kernel: bproc: ghost(2124): failed to wait on 2132.options=2  err=-10

But I guess I would work these things out. Most of all, I would like
to here your comments on the idea of using master's pgrp and session
also in normal non-masq-ed process information on slave.

Best Regards

Vaclav