Subject: testfs on 3.18.17-vs2.3.7.4. some errors ext4
From: Ghislain <gadnet@aqueos.com>
Date: Mon, 06 Jul 2015 15:17:30 +0200

hi,

  For information. i got some errors on  testfs on this kernel:

bash testfs.sh  -v -v -y -z -D /dev/vserverpool/iozone -M /mnt/testfs -F 
ext4


[202]# succeeded.

[203]# failed.
         do_dlimit_inodes /mnt/testfs 3 300 301 600 900
         vtag --migrate --tag 300 -- rm -f /mnt/testfs/inodes-300*
         vtag --migrate --tag 300 -- touch /mnt/testfs/inodes-300-1
touch: cannot touch `/mnt/testfs/inodes-300-1': No space left on device
[204]# failed.
         do_dlimit_verify /mnt/testfs 300 301 600 900
/mnt/
/mnt/aqueos10btrfs
/mnt/testfs
/mnt/testfs/lost+found
/mnt/testfs/file_8971
/mnt/testfs/space-300
/mnt/testfs/dir_8971
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs 
(rw,relatime,size=10240k,nr_inodes=2046366,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=1637872k,mode=755)
/dev/disk/by-uuid/d78a2f2c-6f75-44f7-94a1-5d731dd907ee on / type ext4 
(rw,noatime,errors=remount-ro,data=ordered)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=4056840k)
/dev/md127 on /boot type ext4 (rw,noatime,stripe=4,data=ordered)
/dev/mapper/vserverpool-VSERVERS_ROOT on /vservers type ext4 
(rw,noatime,tag,data=ordered)
/dev/mapper/vserverpool-VSERVERS_TMP on /vservers/tmp type ext4 
(rw,nosuid,nodev,noexec,noatime,tag,data=ordered)
vserver on /dev/cgroup type cgroup 
(rw,relatime,cpuset,cpu,cpuacct,memory,devices,freezer,net_cls,blkio,net_prio)
/dev/mapper/vserverpool-iozone on /mnt/testfs type ext4 
(rw,relatime,tag,data=ordered)
Filesystem                     1K-blocks  Used Available Use% Mounted on
/dev/mapper/vserverpool-iozone  30832636 45016  29198372   1% /mnt/testfs
300 /mnt/testfs
space_used=16
space_total=32
inodes_used=5
inodes_total=5
reserved=0
Filesystem                      Inodes IUsed   IFree IUse% Mounted on
/dev/mapper/vserverpool-iozone 1966080    14 1966066    1% /mnt/testfs
         verify 300: space 0 = 0
         verify 300: inode 0 = 0


[208]# failed.
         do_dlimit_add /mnt/testfs 128 10 300 301 600 900

[212]# failed.
         do_dlimit_verify /mnt/testfs 300 301 600 900
/mnt/
/mnt/aqueos10btrfs
/mnt/testfs
/mnt/testfs/cow-300
/mnt/testfs/lost+found
/mnt/testfs/file_8971
/mnt/testfs/space-300
/mnt/testfs/dir_8971
/mnt/testfs/cow-300-0
/mnt/testfs/cow-300-1
/mnt/testfs/cow-300-2
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs 
(rw,relatime,size=10240k,nr_inodes=2046366,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=1637872k,mode=755)
/dev/disk/by-uuid/d78a2f2c-6f75-44f7-94a1-5d731dd907ee on / type ext4 
(rw,noatime,errors=remount-ro,data=ordered)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=4056840k)
/dev/md127 on /boot type ext4 (rw,noatime,stripe=4,data=ordered)
/dev/mapper/vserverpool-VSERVERS_ROOT on /vservers type ext4 
(rw,noatime,tag,data=ordered)
/dev/mapper/vserverpool-VSERVERS_TMP on /vservers/tmp type ext4 
(rw,nosuid,nodev,noexec,noatime,tag,data=ordered)
vserver on /dev/cgroup type cgroup 
(rw,relatime,cpuset,cpu,cpuacct,memory,devices,freezer,net_cls,blkio,net_prio)
/dev/mapper/vserverpool-iozone on /mnt/testfs type ext4 
(rw,relatime,tag,data=ordered)
Filesystem                     1K-blocks  Used Available Use% Mounted on
/dev/mapper/vserverpool-iozone  30832636 45024  29198364   1% /mnt/testfs
300 /mnt/testfs
space_used=24
space_total=128
inodes_used=14
inodes_total=10
reserved=0
Filesystem                      Inodes IUsed   IFree IUse% Mounted on
/dev/mapper/vserverpool-iozone 1966080    17 1966063    1% /mnt/testfs
         verify 300: space 24 = 24
         verify 300: inode 3 = 14
         verify 300: 3 ~ 14
[213]# failed.
         do_dlimit_cowtest /mnt/testfs 43 3 300 301 600 900
         vtag --migrate --tag 300 -- rm -f /mnt/testfs/cow-300 
/mnt/testfs/cow-300-0 /mnt/testfs/cow-300-1 /mnt/testfs/cow-300-2
         vtag --migrate --tag 300 -- dd if=/dev/zero 
of=/mnt/testfs/cow-300 bs=1k count=43
dd: opening `/mnt/testfs/cow-300': No space left on device

------------------------------------

   LV Path                /dev/vserverpool/iozone
   LV Name                iozone
   VG Name                vserverpool
   LV Write Access        read/write
   LV Status              available
   # open                 0
   LV Size                30.00 GiB