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|description=Basic tests for OpenVZ Linux Containers and Checkpoint/Restore In Userspace (CRIU) | |description=Basic tests for OpenVZ Linux Containers and Checkpoint/Restore In Userspace (CRIU) | ||
==Known issues== | ==Known issues== | ||
* criu: command not found | |||
** On not x8_64 arches CRIU not working. Work in progress. | |||
* Problems with SELinux | * Problems with SELinux | ||
** Temporary fix: <code>setenforce 0</code> | ** Temporary fix: <code>setenforce 0</code> | ||
| Line 11: | Line 13: | ||
** You shall execute <code>vzctl exec 101 killall udevd</code> | ** You shall execute <code>vzctl exec 101 killall udevd</code> | ||
===4.3.1 specific=== | ===4.3.1 specific=== | ||
* criu: command not found | |||
** <code>yum install crtools</code> (Patch sent to maintainers) | |||
* Doesn't work <code>vzctl exec 101 ps axf</code> (proc is not mounted) | * Doesn't work <code>vzctl exec 101 ps axf</code> (proc is not mounted) | ||
** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2658 2658] | ** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2658 2658] | ||
* Doesn't work <code>vzctl restore 101</code> (VE_VETH_DEVS failure) | * Doesn't work <code>vzctl restore 101</code> (VE_VETH_DEVS failure) | ||
** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2659 2659] | ** OpenVZ # [https://bugzilla.openvz.org/show_bug.cgi?id=2659 2659] | ||
Latest revision as of 16:52, 23 July 2013
Description
Basic tests for OpenVZ Linux Containers and Checkpoint/Restore In Userspace (CRIU)
Known issues
- criu: command not found
- On not x8_64 arches CRIU not working. Work in progress.
- Problems with SELinux
- Temporary fix:
setenforce 0 - In version 4.4 we introduced new script for disable SELinux
/usr/libexec/vzctl/scripts/vz-postinstall
- Temporary fix:
- Random system freezes
- RHBZ # 982489
- Kernel older or equal 3.10
- You shall execute
vzctl exec 101 killall udevd
- You shall execute
4.3.1 specific
- criu: command not found
yum install crtools(Patch sent to maintainers)
- Doesn't work
vzctl exec 101 ps axf(proc is not mounted)- OpenVZ # 2658
- Doesn't work
vzctl restore 101(VE_VETH_DEVS failure)- OpenVZ # 2659
Bug Reports
- If something went wrong you can see dump.log in
/var/lib/vz/dump/Dump.101.fail/and send bugreport. - For bugreport you shall create archive dump and attach to BZ. Create archive (as root):
cd /var/lib/vz/dump/Dump.101.fail/ && tar -cJf /Dump.101.fail.tar.xz *
- For problems with ethernet you shall send to us
ip addr; ip routefrom host and guest in two files. - New bug
Setup
- Open terminal
- Switch to root user:
su - - Install:
yum install vzctl
How to test
- Create new container:
vzctl create 101 --ostemplate centos-6-x86_64 - Start container:
vzctl start 101 - Exec ps in container:
vzctl exec 101 ps axf - Enter to container:
vzctl enter 101 - Exec ps in container directly:
ps axf - Exit from container:
logout - Suspend container:
vzctl suspend 101 - Restore container:
vzctl restore 101orvzctl resume 101 - Stop container:
vzctl stop 101
Expected Results
- All steps completes without error
- Steps #3, #5 shows the same. Like this:
Directory /proc/vz not found, assuming non-OpenVZ kernel
PID TTY STAT TIME COMMAND
551 pts/0 R+ 0:00 ps axf
1 ? Ss 0:00 init
59 ? S<s 0:00 /sbin/udevd -d
299 ? S< 0:00 \_ /sbin/udevd -d
459 ? Sl 0:00 /sbin/rsyslogd -i /var/run/syslogd.pid -c 5
488 ? Ss 0:00 /usr/sbin/sshd
495 ? Ss 0:00 xinetd -stayalive -pidfile /var/run/xinetd.pid
502 ? Ss 0:00 /usr/sbin/saslauthd -m /var/run/saslauthd -a pam -n 2
503 ? S 0:00 \_ /usr/sbin/saslauthd -m /var/run/saslauthd -a pam -n 2
518 ? Ss 0:00 sendmail: accepting connections
526 ? Ss 0:00 sendmail: Queue runner@01:00:00 for /var/spool/clientmqueue
534 ? Ss 0:00 /usr/sbin/httpd
537 ? S 0:00 \_ /usr/sbin/httpd
542 ? Ss 0:00 crond