{"action":"opened","issue":{"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4171","labels_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4171/labels{/name}","comments_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4171/comments","events_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4171/events","html_url":"https://github.com/zfsonlinux/zfs/issues/4171","id":125085068,"number":4171,"title":"zfs hang","user":{"login":"digoal","id":1920239,"avatar_url":"https://avatars.githubusercontent.com/u/1920239?v=3","gravatar_id":"","url":"https://api.github.com/users/digoal","html_url":"https://github.com/digoal","followers_url":"https://api.github.com/users/digoal/followers","following_url":"https://api.github.com/users/digoal/following{/other_user}","gists_url":"https://api.github.com/users/digoal/gists{/gist_id}","starred_url":"https://api.github.com/users/digoal/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/digoal/subscriptions","organizations_url":"https://api.github.com/users/digoal/orgs","repos_url":"https://api.github.com/users/digoal/repos","events_url":"https://api.github.com/users/digoal/events{/privacy}","received_events_url":"https://api.github.com/users/digoal/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-01-06T00:44:51Z","updated_at":"2016-01-06T00:44:51Z","closed_at":null,"body":"[1577739.906470] INFO: task postgres:48459 blocked for more than 120 seconds.\r\n[1577739.950194]       Tainted: P           O   3.18.24 #2\r\n[1577739.976440] \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\r\n[1577740.013349] postgres        D 0000000000000005     0 48459  50389 0x00000000\r\n[1577740.047348]  ffff882508ddb5e8 0000000000000086 ffffffffa07d1ca0 ffff882508dd8010\r\n[1577740.082222]  0000000000011900 0000000000011900 ffff8812e2b22190 ffff88402608ef50\r\n[1577740.118182]  0000000000000000 ffff882508ddb618 ffffffffa07d1ca0 00000000000001b7\r\n[1577740.155047] Call Trace:\r\n[1577740.167226]  [<ffffffff81618099>] schedule+0x29/0x70\r\n[1577740.190951]  [<ffffffffa06b90e5>] spl_panic+0xd5/0xe0 [spl]\r\n[1577740.217688]  [<ffffffff8115e41b>] ? list_lru_add+0x7b/0x100\r\n[1577740.243903]  [<ffffffff811b6543>] ? inode_add_lru+0x43/0x60\r\n[1577740.270472]  [<ffffffff811b6a79>] ? iput_final+0x139/0x190\r\n[1577740.296631]  [<ffffffff811b6dd6>] ? insert_inode_locked+0x156/0x160\r\n[1577740.326084]  [<ffffffffa07ad56f>] zfs_znode_alloc+0x3af/0x500 [zfs]\r\n[1577740.355583]  [<ffffffffa07ad939>] zfs_zget+0x279/0x310 [zfs]\r\n[1577740.382219]  [<ffffffffa07831d3>] ? zap_lookup_norm+0xc3/0x190 [zfs]\r\n[1577740.412178]  [<ffffffffa078d0f8>] zfs_dirent_lock+0x4b8/0x580 [zfs]\r\n[1577740.443862]  [<ffffffffa078d3cb>] zfs_dirlook+0x8b/0x270 [zfs]\r\n[1577740.474004]  [<ffffffffa0786b50>] ? zfs_zaccess+0xa0/0x2d0 [zfs]\r\n[1577740.504543]  [<ffffffffa0750d17>] ? rrw_enter_read_impl+0xd7/0x180 [zfs]\r\n[1577740.535912]  [<ffffffffa07a703f>] zfs_lookup+0x2df/0x330 [zfs]\r\n[1577740.563356]  [<ffffffffa07bebab>] zpl_lookup+0x9b/0x110 [zfs]\r\n[1577740.590417]  [<ffffffff811a5dcd>] lookup_real+0x1d/0x60\r\n[1577740.615163]  [<ffffffff811a6518>] __lookup_hash+0x38/0x50\r\n[1577740.640776]  [<ffffffff811a966c>] lookup_slow+0x4c/0xc0\r\n[1577740.665485]  [<ffffffff811aa0c5>] path_lookupat+0x605/0x6a0\r\n[1577740.692369]  [<ffffffff811aa194>] filename_lookup+0x34/0xc0\r\n[1577740.718676]  [<ffffffff811ab589>] user_path_at_empty+0x59/0xa0\r\n[1577740.746167]  [<ffffffffa0750aff>] ? rrm_exit+0x4f/0xa0 [zfs]\r\n[1577740.772920]  [<ffffffff811ab5e1>] user_path_at+0x11/0x20\r\n[1577740.798179]  [<ffffffff811a1389>] vfs_fstatat+0x59/0xb0\r\n[1577740.822885]  [<ffffffff811bb913>] ? mntput+0x23/0x40\r\n[1577740.846414]  [<ffffffff8119df90>] ? __fput+0x170/0x250\r\n[1577740.870741]  [<ffffffff811a13fe>] vfs_lstat+0x1e/0x20\r\n[1577740.894721]  [<ffffffff811a179f>] SYSC_newlstat+0x1f/0x50\r\n[1577740.920299]  [<ffffffff8106eab4>] ? task_work_run+0x94/0xf0\r\n[1577740.948059]  [<ffffffff81003cd4>] ? do_notify_resume+0x84/0x90\r\n[1577740.978460]  [<ffffffff8161bd1f>] ? int_signal+0x12/0x17\r\n[1577741.006300]  [<ffffffff811a17de>] SyS_newlstat+0xe/0x10\r\n[1577741.031049]  [<ffffffff8161bab2>] system_call_fastpath+0x12/0x17"}}