<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Times New Roman; font-size: 12pt; color: #000000'><font size="2"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><font size="3"><span style="font-family: times new roman,new york,times,serif;">Hi !<br><br>To reproduce the "mount bug" : <br><br>You have stop some services inside the container (cron,syslog,bind9) :</span></font><br><br>dns:~# ps xua</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 1 0.0 0.0 1984 696 ? Ss 19:03 0:00 init [2] </span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 349 0.0 0.0 3040 984 ? Ss 19:03 0:00 /sbin/syslogd</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 358 0.0 0.0 1648 404 ? Ss 19:03 0:00 /sbin/klogd -x</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">bind 375 0.2 0.0 108284 17524 ? Ssl 19:03 0:00 /usr/sbin/named -u bind</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 396 0.0 0.0 5276 976 ? Ss 19:03 0:00 /usr/sbin/sshd</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 420 0.0 0.0 2384 804 ? Ss 19:03 0:00 /usr/sbin/cron</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 438 0.0 0.0 6028 2912 console Ss 19:03 0:00 /bin/login -- </span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 439 0.0 0.0 1992 568 tty1 Ss+ 19:03 0:00 /sbin/getty 38400 tty1 linux</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 440 0.0 0.0 1992 572 tty2 Ss+ 19:03 0:00 /sbin/getty 38400 tty2 linux</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 441 0.0 0.0 1992 572 tty3 Ss+ 19:03 0:00 /sbin/getty 38400 tty3 linux</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 442 0.0 0.0 1992 572 tty4 Ss+ 19:03 0:00 /sbin/getty 38400 tty4 linux</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 443 0.7 0.0 4132 2652 console S 19:03 0:00 -bash</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">root 456 0.0 0.0 2644 948 console R+ 19:04 0:00 ps xua</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">dns:~# mount -o remount,ro /</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">mount: / is busy</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">dns:~# /etc/init.d/sysklogd stop</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">Stopping system log daemon....</span><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;"></span><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;"> </span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">dns:~# /etc/init.d/cron stop</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">Stopping periodic command scheduler: crond.</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">dns:~# /etc/init.d/bind9 stop</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">Stopping domain name service...: bind9 waiting for pid 375 to die.</span><br style="font-family: Courier New,courier,monaco,monospace,sans-serif;"><span style="font-family: Courier New,courier,monaco,monospace,sans-serif;">dns:~# mount -o remount,ro /</span></font><br><br>Regards,<br><br>Elias Olivares<br><br><br>----- Mail Original -----<br>De: "Elias Olivares" <eolivares@1g6.biz><br>À: lxc-devel@lists.sourceforge.net<br>Envoyé: Mardi 5 Janvier 2010 15:34:53<br>Objet: [lxc-devel] bugs with LXC container : mount and rmmod command<br><br><style>p { margin: 0; }</style><div style="font-family: Times New Roman; font-size: 12pt; color: rgb(0, 0, 0);">Hello,<br><br>My company is looking for migrate from OpenVz to LXC container tools but we have found some isolation problems.<br><br>I've created a dedicated partition to share my containers in : /mnt/vmr1/<br><br>I've created a container with an debian debootstrap there : /mnt/vmr1/debiandebootstrap<br><br>Then I enter into a container (lxc-console -n debiandebootstrap) and I use this specific mount command : " mount -o remount,ro / " .<br><br>When I return to the Host , /mnt/vmr1/ is set in "read only". The mount command ran in the guest has interacted with the host. <br><br>I have the same problem with "rmmod" command. When I try to remove some module in the guest container it remove it on the Host machine.<br><br>Someone can help me ?<br><br>Regards,<br><br>Elias Olivares<br><br><br><br><br></div><br>------------------------------------------------------------------------------<br>This SF.Net email is sponsored by the Verizon Developer Community<br>Take advantage of Verizon's best-in-class app development support<br>A streamlined, 14 day to market process makes app distribution fast and easy<br>Join now and get one step closer to millions of Verizon customers<br>http://p.sf.net/sfu/verizon-dev2dev <br>_______________________________________________<br>Lxc-devel mailing list<br>Lxc-devel@lists.sourceforge.net<br>https://lists.sourceforge.net/lists/listinfo/lxc-devel<br></div></body></html>