{"comment":{"url":"https://api.github.com/repos/openzfsonosx/zfs/comments/13485168","html_url":"https://github.com/openzfsonosx/zfs/commit/fe992d8377c6c68d1f16bee7ec514f01602fb3fa#commitcomment-13485168","id":13485168,"user":{"login":"ahrens","id":799124,"avatar_url":"https://avatars.githubusercontent.com/u/799124?v=3","gravatar_id":"","url":"https://api.github.com/users/ahrens","html_url":"https://github.com/ahrens","followers_url":"https://api.github.com/users/ahrens/followers","following_url":"https://api.github.com/users/ahrens/following{/other_user}","gists_url":"https://api.github.com/users/ahrens/gists{/gist_id}","starred_url":"https://api.github.com/users/ahrens/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ahrens/subscriptions","organizations_url":"https://api.github.com/users/ahrens/orgs","repos_url":"https://api.github.com/users/ahrens/repos","events_url":"https://api.github.com/users/ahrens/events{/privacy}","received_events_url":"https://api.github.com/users/ahrens/received_events","type":"User","site_admin":false},"position":null,"line":null,"path":"","commit_id":"fe992d8377c6c68d1f16bee7ec514f01602fb3fa","created_at":"2015-09-29T06:58:36Z","updated_at":"2015-09-29T06:58:36Z","body":"Hm, that is really strange.  So on the source (Trinity) we have blocks that were never written (they have no birth times), and on the target the block has data.  So somehow we did a write to that file/offset that never should have had data.  This would be in the @fix-oops-vdev-20150709 snapshot.  Can you use zdb to see what those 2 files looked like in that snapshot and the previous (@2015-06-26-000000)?  We should see that in the previous they are holes."}}