== sanity test 160i: changelog user register/unregister race ========================================================== 18:15:24 (1780524924)
mdd.lustre-MDT0000.changelog_mask=+hsm
Registered 1 changelog users: 'cl1'
fail_loc=0x10001315
fail_val=1
lustre-MDT0000: clear the changelog for cl1 of all records
mdd.lustre-MDT0000.changelog_mask=+hsm
lustre-MDT0000: Deregistered changelog user #1
Registered 1 changelog users: 'cl1 cl2'
cl2                               3 (1)
verify changelogs added: 3->7
lustre-MDT0000: clear the changelog for cl2 of all records
lustre-MDT0000: Deregistered changelog user #2
mdd.lustre-MDT0000.changelog_mask=MARK
lustre-MDT0000: changelog user 'cl1' not found
mdd.lustre-MDT0000.changelog_mask=MARK