{"action":"closed","issue":{"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4122","labels_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4122/labels{/name}","comments_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4122/comments","events_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4122/events","html_url":"https://github.com/zfsonlinux/zfs/issues/4122","id":122971049,"number":4122,"title":"Kernel panic - not syncing: avl_find() succeeded inside avl_add()","user":{"login":"storepeter","id":4480669,"avatar_url":"https://avatars.githubusercontent.com/u/4480669?v=3","gravatar_id":"","url":"https://api.github.com/users/storepeter","html_url":"https://github.com/storepeter","followers_url":"https://api.github.com/users/storepeter/followers","following_url":"https://api.github.com/users/storepeter/following{/other_user}","gists_url":"https://api.github.com/users/storepeter/gists{/gist_id}","starred_url":"https://api.github.com/users/storepeter/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/storepeter/subscriptions","organizations_url":"https://api.github.com/users/storepeter/orgs","repos_url":"https://api.github.com/users/storepeter/repos","events_url":"https://api.github.com/users/storepeter/events{/privacy}","received_events_url":"https://api.github.com/users/storepeter/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-12-18T15:43:32Z","updated_at":"2015-12-20T20:21:29Z","closed_at":"2015-12-20T20:21:29Z","body":"I get a kernel panic every day on Ubuntu 14.04.3 / ZFS 0.6.5.3.\r\nPlease advice if you need further details.\r\nI have included a blurred photo of the screen after the crash\r\n\r\nBest Regards\r\nPeter\r\n\r\n\r\n![img_0001](https://cloud.githubusercontent.com/assets/4480669/11900323/3a47d3dc-a573-11e5-998c-55b3c603e299.JPG)\r\n\r\nexcerpt from dmesg:\r\n[    0.000000] Linux version 3.19.0-41-generic (buildd@lgw01-12) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46~14.04\r\n.2-Ubuntu SMP Tue Dec 8 17:46:10 UTC 2015 (Ubuntu 3.19.0-41.46~14.04.2-generic 3.19.8-ckt10)\r\n[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.19.0-41-generic boot=zfs rpool=y bootfs=y/ROOT/ubuntu-14.04-y\r\n...\r\n[    7.368128] zavl: module license 'CDDL' taints kernel.\r\n[    7.369392] Disabling lock debugging due to kernel taint\r\n[    7.370653] zavl: module verification failed: signature and/or  required key missing - tainting kernel\r\n[    7.373345] SPL: Loaded module v0.6.5.3-1~trusty\r\n[    7.383352] ZFS: Loaded module v0.6.5.3-1~trusty, ZFS pool version 5000, ZFS filesystem version 5\r\n[    9.150664] SPL: using hostid 0x007f0101\r\n\r\n----\r\nzpool status\r\n  pool: av\r\n state: ONLINE\r\nstatus: Some supported features are not enabled on the pool. The pool can\r\n\tstill be used, but some features are unavailable.\r\naction: Enable all features using 'zpool upgrade'. Once this is done,\r\n\tthe pool may no longer be accessible by software that does not support\r\n\tthe features. See zpool-features(5) for details.\r\n  scan: none requested\r\nconfig:\r\n\r\n\tNAME                                       STATE     READ WRITE CKSUM\r\n\tav                                         ONLINE       0     0     0\r\n\t  mirror-0                                 ONLINE       0     0     0\r\n\t    ata-ST2000DL003-9VT166_5YDA1MXK-part5  ONLINE       0     0     0\r\n\t    ata-ST32000542AS_5XW1WX63-part5        ONLINE       0     0     0\r\n\r\nerrors: No known data errors\r\n\r\n  pool: y\r\n state: ONLINE\r\nstatus: Some supported features are not enabled on the pool. The pool can\r\n\tstill be used, but some features are unavailable.\r\naction: Enable all features using 'zpool upgrade'. Once this is done,\r\n\tthe pool may no longer be accessible by software that does not support\r\n\tthe features. See zpool-features(5) for details.\r\n  scan: resilvered 1.13G in 0h2m with 0 errors on Sun Dec 13 12:32:14 2015\r\nconfig:\r\n\r\n\tNAME                                       STATE     READ WRITE CKSUM\r\n\ty                                          ONLINE       0     0     0\r\n\t  mirror-0                                 ONLINE       0     0     0\r\n\t    ata-ST2000DL003-9VT166_5YDA1SW7-part5  ONLINE       0     0     0\r\n\t    ata-ST32000542AS_5XW1WB4G-part5        ONLINE       0     0     0\r\n\r\nerrors: No known data errors\r\n\r\n -----\r\nzpool history\r\nHistory for 'av':\r\n2013-12-11.17:46:43 zpool create -o ashift=12 -f av mirror ata-ST2000DL003-9VT166_5YDA1MXK-part5 ata-ST32000542AS_5XW1WX63-part5\r\n2013-12-11.17:46:43 zpool set feature@lz4_compress=enabled av\r\n2013-12-11.17:46:44 zfs set compression=lz4 av\r\n2013-12-11.17:46:45 zfs set atime=off av\r\n2013-12-11.17:46:45 zfs set sharenfs=on av\r\n2013-12-11.17:46:46 zfs set snapdir=visible av\r\n....\r\nHistory for 'y':\r\n2013-12-11.10:44:21 zpool create -o ashift=12 -f y mirror ata-ST2000DL003-9VT166_5YDA1SW7-part5 ata-ST32000542AS_5XW1WB4G-part5\r\n2013-12-11.10:44:21 zpool set feature@lz4_compress=enabled y\r\n2013-12-11.10:44:21 zfs set compression=lz4 y\r\n2013-12-11.10:44:22 zfs set atime=off y\r\n2013-12-11.10:44:22 zfs set sharenfs=on y\r\n2013-12-11.10:44:23 zfs set snapdir=visible y\r\n"}}