[LU-14632] sanity-hsm test_606: losetup: /dev/mapper/mds1_flakey: failed to set up loop dev

Wed, 5 May 2021 12:54:07 +0000

To reproduce:

setup Lustre with config mds1_HOST != mds1failover_HOST;

without llmount.sh before the test run: ONLY=606 sh sanity-hsm.sh

Test fails with :


      losetup: /dev/mapper/mds1_flakey: failed to set up loop device: No such file or directory

The reason of failure:

After check_and_setup_lustre() mds1_dev is equal to /dev/mapper/mds1_flakey, which is unexported to saved real device (/dev/vdc) by stop():


      stop mds1

        elif dm_flakey_supported mds1; then

            dm_cleanup_dev mds1

              unexport_dm_dev mds1

As a result test_606():stack_trap() is called with non existing /dev/mapper/mds1_flakey:


stack_trap 'stop mds1; start mds1 /dev/mapper/mds1_flakey -o rw,user_xattr' EXIT

and failed as:


 losetup: /dev/mapper/mds1_flakey: failed to set up loop device: No such file or directory

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