[Devel] [PATCH libvzctl] Workaround for cgroups freezer

[Cyrill Gorcunov]

Guys, there is a problem with signal delivery when we checkpoint
container together with freezer cgroup help. So until I resolve
the problem on kernel level, lets drop it from criu options so
it won't block the tests.
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>From a3e2d49f4753b24a6b6fed6d83ef9e2ae8b01c96 Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov at openvz.org>
Date: Fri, 15 Jan 2016 13:50:28 +0300
Subject: [PATCH] scripts/vz-cpt.in: Disable cgroup freezer for a while

We've found a problem in signal delivery when cgroup
freezer is used for dumping stage. So disable it for
a while until kernel get fixed.

https://jira.sw.ru/browse/PSBM-43089

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 scripts/vz-cpt.in | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/scripts/vz-cpt.in b/scripts/vz-cpt.in
index 972a325..1cc1718 100755
--- a/scripts/vz-cpt.in
+++ b/scripts/vz-cpt.in
@@ -30,6 +30,10 @@ exec 1>&2
 dumpdir="$VE_DUMP_DIR".tmp
 [ -d $dumpdir ] && rm -rf $dumpdir
 
+# Disable cgroup freezer for a while due to PSBM-43089
+# --freeze-cgroup $VE_FREEZE_CG		\
+# once kernel get fixed we move it back
+
 mkdir -p $dumpdir &&
 criu dump -vvvv -o dump.log				\
 		--file-locks				\
@@ -41,7 +45,6 @@ criu dump -vvvv -o dump.log				\
 		--enable-external-shari			\
 		--enable-external-maste			\
 		--root $VE_ROOT				\
-		--freeze-cgroup $VE_FREEZE_CG		\
 		--ghost-limit 5M			\
 		-t $VE_PID				\
 		-D $dumpdir				\
-- 
2.5.0