Hide Forgot
Description of problem: No error to handle overcommit storage Version-Release number of selected component (if applicable): libvirt-0.8.2-20.el5 2.6.18-264.el5xen xen-3.0.3-132.el5 How reproducible: always Steps to Reproduce: 1. Prepare a little size storage and mkfs.ext3 # fdisk -l /dev/sda3 Disk /dev/sda3: 16 MB, 16450560 bytes 255 heads, 63 sectors/track, 2 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sda3 doesn't contain a valid partition table # mkfs.ext3 /dev/sda3 2. Prepare the followng pool xml: <pool type='fs'> <name>mypool</name> <source> <device path='/dev/sda3'/> <format type='auto'/> </source> <target> <path>/var/lib/libvirt/images/mypool</path> </target> </pool> Define, build and start the pool # virsh pool-define fs-pool.xml # virsh pool-build mypool # virsh pool-start mypool 3. # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 48G 20G 26G 45% / tmpfs 3.7G 0 3.7G 0% /dev/shm none 3.7G 104K 3.7G 1% /var/lib/xenstored /dev/sda3 16M 16M 0 100% /var/lib/libvirt/images/mypool 4. # for i in `seq 100`; do sed "s/#NUMBER#/$i/g" vol-disk-template.xml > vol-disk.xml; virsh vol-create mypool vol-disk.xml; done Vol disk1.img created from vol-disk.xml Vol disk2.img created from vol-disk.xml Vol disk3.img created from vol-disk.xml .... Vol disk99.img created from vol-disk.xml Vol disk100.img created from vol-disk.xml 5. # virsh vol-list --pool mypool Name Path ----------------------------------------- disk1.img /var/lib/libvirt/images/mypool/disk1.img disk10.img /var/lib/libvirt/images/mypool/disk10.img disk100.img /var/lib/libvirt/images/mypool/disk100.img .... 6. # cd /var/lib/libvirt/images/mypool/ # ls disk10.img disk19.img disk27.img disk35.img disk43.img disk6.img disk11.img disk1.img disk28.img disk36.img disk44.img disk7.img disk12.img disk20.img disk29.img disk37.img disk45.img disk8.img disk13.img disk21.img disk2.img disk38.img disk46.img disk9.img disk14.img disk22.img disk30.img disk39.img disk47.img lost+found disk15.img disk23.img disk31.img disk3.img disk48.img disk16.img disk24.img disk32.img disk40.img disk49.img disk17.img disk25.img disk33.img disk41.img disk4.img disk18.img disk26.img disk34.img disk42.img disk5.img # ll /var/lib/libvirt/images/mypool/disk100.img ls: /var/lib/libvirt/images/mypool/disk100.img: No such file or directory Actual results: In step6, as the storage limited, not all 100 images are created successfully actually. Expected results: Some error should pops up like below error: Failed to create vol from vol-disk.xml error: cannot create path '/var/lib/libvirt/images/mypool/disk100.img': No space left on device Additional info:
# cat vol-disk-template.xml <volume> <name>disk#NUMBER#.img</name> <capacity unit='M'>5</capacity> <allocation unit='M'>5</allocation> <target> <path>/var/lib/libvirt/images/mypool/disk#NUMBER#.img</path> <format type='raw'/> </target> </volume>
Could reproduce this bug on the following components of rh5.6: libvirt-0.8.2-15.el5 kernel-xen-2.6.18-238.el5 xen-3.0.3-120.el5 Steps: same as above.
This request was evaluated by Red Hat Product Management for inclusion in Red Hat Enterprise Linux 5.7 and Red Hat does not plan to fix this issue the currently developed update. Contact your manager or support representative in case you need to escalate this bug.
Development Management has reviewed and declined this request. You may appeal this decision by reopening this request.