When we open tty, we don't want to set it as controlling terminal.
[xemul: We do it in all the other places, this one is forgotten.
The "controlling tty" feature is setup explicitly later with
the ioctl (TIOCSCTTY) call. ]
This bug was caught by pty04. Where we get unexpected SIGCONT,
which is sent after closing a controlling terminal.
./pty04 --pidfile=pty04.pid --outfile=pty04.out
Dump 9578
Restore
Test: zdtm/live/static/pty04, Result: FAIL
==================================== ERROR ====================================
Test: zdtm/live/static/pty04, Namespace:
Dump log : /home/jenkins/workspace/Rpi-CRIU/test/dump/static/pty04/9578/1/dump.log
--------------------------------- grep Error ---------------------------------
------------------------------------- END -------------------------------------
Restore log: /home/jenkins/workspace/Rpi-CRIU/test/dump/static/pty04/9578/1/restore.log
--------------------------------- grep Error ---------------------------------
(00.083420) Error (cr-restore.c:1092): 9578 killed by signal 0
(00.083708) Error (cr-restore.c:1713): Restoring FAILED.
------------------------------------- END -------------------------------------
================================= ERROR OVER =================================
Reported-by: Mr Jenkins
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
criu
====
An utility to checkpoint/restore tasks. Using this tool, you can
freeze a running application (or part of it) and checkpoint it to
a hard drive as a collection of files. You can then use the files
to restore and run the application from the point it was frozen
at. The distinctive feature of the CRIU project is that it is
mainly implemented in user space.
The project home is at http://criu.org
Pages worth starting with are
* Kernel configuration, compilation, etc: http://criu.org/Installation
* A simple example of usage: http://criu.org/Simple_loop
* More sophisticated example with graphical app: http://criu.org/VNC
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