Hi Kir,<br><br>1. The underlying 30G file system is 25% full - the failed ploop-based CT creation attempts were sandwiched between successful simfs -based CT creations: Create simfs CT, attempt to create ploop CT and fail, create simfs CT, attempt to create ploop Ct and fail.<br>
<br>2. There was no hint of the problem in dmesg output.<br><br>3. The underlying filesystem is ext4.<br><br>Joe<br><br><div class="gmail_quote">On Sun, Apr 22, 2012 at 8:22 AM, Kir Kolyshkin <span dir="ltr"><<a href="mailto:kir@openvz.org">kir@openvz.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 04/22/2012 10:41 AM, jjs - mainphrame wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
A data point concerning my openvz test setup: Centos 6.2 i386, vzkernel-2.6.32-042stab054.5, ploop-1.2.1 -<br>
<br>
Creation of simfs CTs proceeds normally normal, but creation of ploop-based CT runs into problem when nothing can be written to the ploop device.<br>
</blockquote>
<br></div>
I was unable to reproduce it locally, although my setup is slightly different.<br>
1. do you have enough disk space available on the underlying FS (ie the one you use for /vz/private/775 or whatever your VE_PRIVATE is)?<br>
2. anything bad/suspicious in dmesg?<br>
3. what is the underlying filesystem?<div class="HOEnZb"><div class="h5"><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
See CT creation attempt below:<br>
<br>
[root@mrmber]# vzctl create 775 --layout=ploop --config=vswap-256m --diskspace="10000000:<u></u>12000000" --ostemplate=centos-6.2-x86-<u></u>devel<br>
Creating image: /vz/private/775.tmp/root.hdd/<u></u>root.hdd size=12000000K<br>
Creating delta /vz/private/775.tmp/root.hdd/<u></u>root.hdd bs=2048 size=24000000 sectors<br>
Storing /vz/private/775.tmp/root.hdd/<u></u>DiskDescriptor.xml<br>
Adding delta dev=/dev/ploop1 img=/vz/private/775.tmp/root.<u></u>hdd/root.hdd (rw)<br>
/sbin/mkfs -t ext4 -j -b4096 /dev/ploop1p1 </dev/null<br>
mke2fs 1.41.12 (17-May-2010)<br>
Discarding device blocks: failed - Operation not supported<br>
Filesystem label=<br>
OS type: Linux<br>
Block size=4096 (log=2)<br>
Fragment size=4096 (log=2)<br>
Stride=0 blocks, Stripe width=0 blocks<br>
750720 inodes, 2999552 blocks<br>
149977 blocks (5.00%) reserved for the super user<br>
First data block=0<br>
Maximum filesystem blocks=<a href="tel:3074424832" value="+13074424832" target="_blank">3074424832</a><br>
92 block groups<br>
32768 blocks per group, 32768 fragments per group<br>
8160 inodes per group<br>
Superblock backups stored on blocks:<br>
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208<br>
<br>
Writing inode tables: done<br>
Creating journal (32768 blocks): done<br>
Writing superblocks and filesystem accounting information: done<br>
<br>
This filesystem will be automatically checked every 30 mounts or<br>
180 days, whichever comes first. Use tune2fs -c or -i to override.<br>
/sbin/tune2fs -o user_xattr,acl /dev/ploop1p1 </dev/null >/dev/null<br>
Creating balloon file .balloon-c3a5ae3d-ce7f-43c4-<u></u>a1ea-c61e2b4504e8<br>
Mounting /dev/ploop1p1 at /vz/private/775.tmp/root.hdd/<u></u>root.hdd.mnt fstype=ext4 data=''<br>
Umounting fs at /vz/private/775.tmp/root.hdd/<u></u>root.hdd.mnt<br>
Unmounting device /dev/ploop1<br>
Adding delta dev=/dev/ploop1 img=/vz/private/775.tmp/root.<u></u>hdd/root.hdd (rw)<br>
Mounting /dev/ploop1p1 at /vz/root/775 fstype=ext4 data='balloon_ino=12,'<br>
Creating container private area (centos-6.2-x86-devel)<br>
tar: ./etc/rc.d/init.d/saslauthd: Cannot write: No space left on device<br>
tar: ./etc/rc.d/init.d/nscd: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/rdisc: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/killall: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/single: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/snmptrapd: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/nmb: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/crond: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/smb: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/named: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/network: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/httpd: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/udev-post: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/xinetd: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/iptables: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/rpcbind: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/postfix: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/snmpd: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/functions: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/netconsole: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/netfs: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/rsyslog: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/modules_dep: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/halt: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/sshd: Cannot open: No space left on device<br>
tar: ./etc/rc.d/init.d/quota_nld: Cannot open: No space left on device<br>
tar: ./etc/rc.d/rc.local: Cannot open: No space left on device<br>
tar: ./etc/rc.d/rc3.d: Cannot mkdir: No space left on device<br>
tar: ./etc/rc.d/rc3.d/K50snmptrapd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K75quota_nld: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S12rsyslog: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K87named: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K75udev-post: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K75netfs: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K35smb: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S80postfix: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S56xinetd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/<u></u>K50netconsole: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S10network: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K74nscd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K10saslauthd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S99local: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S55sshd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K89rdisc: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S90crond: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K35nmb: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S08modules_<u></u>dep: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S08iptables: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/S85httpd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K87rpcbind: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc3.d/K50snmpd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d: Cannot mkdir: No space left on device<br>
tar: ./etc/rc.d/rc2.d/K50snmptrapd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K75quota_nld: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S12rsyslog: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K87named: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K75netfs: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K35smb: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S80postfix: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S26udev-post: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/<u></u>K50netconsole: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S10network: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K15httpd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K74nscd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K10saslauthd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S99local: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S55sshd: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K89rdisc: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S90crond: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K35nmb: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S13rpcbind: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S08modules_<u></u>dep: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/S08iptables: Cannot open: No such file or directory<br>
tar: ./etc/rc.d/rc2.d/K50xinetd: Cannot open: No such file or directory<br>
^Z<br>
[1]+ Stopped vzctl create 775 --layout=ploop --config=vswap-256m --diskspace="10000000:<u></u>12000000" --ostemplate=centos-6.2-x86-<u></u>devel<br>
</blockquote>
<br>
</div></div></blockquote></div><br>