{"action":"created","issue":{"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3330","labels_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3330/labels{/name}","comments_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3330/comments","events_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3330/events","html_url":"https://github.com/zfsonlinux/zfs/issues/3330","id":70128350,"number":3330,"title":"Hang importing pool in 0.6.4-1 with zvol present","user":{"login":"dswartz","id":2582198,"avatar_url":"https://avatars.githubusercontent.com/u/2582198?v=3","gravatar_id":"","url":"https://api.github.com/users/dswartz","html_url":"https://github.com/dswartz","followers_url":"https://api.github.com/users/dswartz/followers","following_url":"https://api.github.com/users/dswartz/following{/other_user}","gists_url":"https://api.github.com/users/dswartz/gists{/gist_id}","starred_url":"https://api.github.com/users/dswartz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dswartz/subscriptions","organizations_url":"https://api.github.com/users/dswartz/orgs","repos_url":"https://api.github.com/users/dswartz/repos","events_url":"https://api.github.com/users/dswartz/events{/privacy}","received_events_url":"https://api.github.com/users/dswartz/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-04-22T13:38:46Z","updated_at":"2015-04-22T15:29:56Z","closed_at":null,"body":"Discovered this while testing zfs support in ESOS (run from usb block storage appliance).  The developer says he just built from source using the vanilla 0.6.4 tarball.  Anyway, here is the reproducer: in a vsphere VM, create two vdisks, one 8GB (for OS) and one 16GB (for zpool).  Install ESOS on the 8GB vdisk using the documented install script.  Boot ESOS.  Login, and do this:\r\n\r\nzpool create -f test sdb\r\nzfs create -V 12G test/foo\r\nzpool export test\r\nzpool import test\r\n\r\nvirtual machine hangs.  no keyboard input, nothing.  as this is a vsphere VM (I don't have a physical host to try with ATM), i have no idea how to send any magic sysrq to get a trace (if possible.)"},"comment":{"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/comments/95237877","html_url":"https://github.com/zfsonlinux/zfs/issues/3330#issuecomment-95237877","issue_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3330","id":95237877,"user":{"login":"dswartz","id":2582198,"avatar_url":"https://avatars.githubusercontent.com/u/2582198?v=3","gravatar_id":"","url":"https://api.github.com/users/dswartz","html_url":"https://github.com/dswartz","followers_url":"https://api.github.com/users/dswartz/followers","following_url":"https://api.github.com/users/dswartz/following{/other_user}","gists_url":"https://api.github.com/users/dswartz/gists{/gist_id}","starred_url":"https://api.github.com/users/dswartz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dswartz/subscriptions","organizations_url":"https://api.github.com/users/dswartz/orgs","repos_url":"https://api.github.com/users/dswartz/repos","events_url":"https://api.github.com/users/dswartz/events{/privacy}","received_events_url":"https://api.github.com/users/dswartz/received_events","type":"User","site_admin":false},"created_at":"2015-04-22T15:29:56Z","updated_at":"2015-04-22T15:29:56Z","body":"I did manage to capture a backtrace where it was doing spa_import.  Now what?"}}