What were you trying to do that didn't work?

Wipe a volume with the dod algorithm

Please provide the package NVR for which bug is seen:

scrub-2.6.1-4.el9.s390x

libvirt-10.0.0-2.el9.s390x

How reproducible:

100%

Steps to reproduce

1. modprobe scsi_debug dev_size_mb=1024
2. mkfs.ext4 /dev/sda; mkdir /tmp/pool_target
3. virsh pool-define pool.xml
cat pool.xml
<?xml version="1.0"?>
<pool type="fs">
  <name>vol_clone_wipe_pool</name>
  <uuid>d7276a3b-9b52-4cb3-9c0b-c7270563d399</uuid>
  <source>
    <device path="/dev/sda"/>
    <format type="ext4"/>
  </source>
  <target>
    <path>/tmp/pool_target</path>
    <permissions>
      <mode>0755</mode>
      <owner>0</owner>
      <group>0</group>
      <label>system_u:object_r:unlabeled_t:s0</label>
    </permissions>
  </target>
</pool>
4. virsh pool-start vol_clone_wipe_pool
5. dd if=/dev/zero of=/tmp/pool_target/vol_1 bs=1 count=0 seek=10M
6. virsh pool-refresh vol_clone_wipe_pool
7. Confirm volume of size 10MB has been recognized:

1. virsh vol-info vol_1 --pool vol_clone_wipe_pool
   Name:           vol_1
   Type:           file
   Capacity:       10.00 MiB
   Allocation:     0.00 B
   8. virsh vol-clone -vol vol_1 --newname clone_vol_1  -pool vol_clone_wipe_pool
   9. virsh vol-wipe --vol clone_vol_1 --pool vol_clone_wipe_pool --algorithm dod

   Expected results

   The volume is wiped successfully

   Actual results

 
error: Failed to wipe vol clone_vol_1
error: internal error: Child process (scrub -f -p dod /tmp/pool_target/clone_vol_1) unexpected exit status 1: scrub: /tmp/pool_target/clone_vol_1: verification error

Additional notes:

Auto case: virsh.vol_clone_wipe.positive_test.non_encrypt.non_acl.sparse_file.pool_type.fs