{"action":"created","issue":{"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4065","labels_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4065/labels{/name}","comments_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4065/comments","events_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4065/events","html_url":"https://github.com/zfsonlinux/zfs/issues/4065","id":120363315,"number":4065,"title":"blocked for more than 120 seconds on 0.6.5.2 in KVM VM","user":{"login":"poiuty","id":3885951,"avatar_url":"https://avatars.githubusercontent.com/u/3885951?v=3","gravatar_id":"","url":"https://api.github.com/users/poiuty","html_url":"https://github.com/poiuty","followers_url":"https://api.github.com/users/poiuty/followers","following_url":"https://api.github.com/users/poiuty/following{/other_user}","gists_url":"https://api.github.com/users/poiuty/gists{/gist_id}","starred_url":"https://api.github.com/users/poiuty/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/poiuty/subscriptions","organizations_url":"https://api.github.com/users/poiuty/orgs","repos_url":"https://api.github.com/users/poiuty/repos","events_url":"https://api.github.com/users/poiuty/events{/privacy}","received_events_url":"https://api.github.com/users/poiuty/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-12-04T09:24:39Z","updated_at":"2015-12-04T16:05:54Z","closed_at":null,"body":"Debian 8, 3.16.0-4-amd64, qemu-kvm, zfs v0.6.5.2-2, VM in zvol with lz4\r\nzfs => zvol kvm vm => lvm => ext4\r\n\r\nToday VM freeze again. Get screenshot from vnc. Check logs (node+vm) - no call trace.\r\n<img src=https://poiuty.com/img/b3/6c3ce1a012b4758f8643193348d68cb3.png>\r\n\r\nBefore (about ~3 months) I use zfs 0.6.4 and dont have this problem.\r\nSo. I think problem mb in zfs | or in virtio | or in kernel (vm)\r\n```\r\n    <disk type='file' device='disk'>\r\n      <driver name='qemu' type='raw' cache='none' io='native'/>\r\n      <source file='/dev/zvol/ssd/kvm640'/>\r\n      <target dev='hda' bus='virtio'/>\r\n      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>\r\n    </disk>\r\n```\r\nNow I try update vm kernel (3.2 to 3.16)\r\nAny ideas?\r\n\r\nalso https://github.com/zfsonlinux/zfs/issues/3955"},"comment":{"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/comments/162006181","html_url":"https://github.com/zfsonlinux/zfs/issues/4065#issuecomment-162006181","issue_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/4065","id":162006181,"user":{"login":"poiuty","id":3885951,"avatar_url":"https://avatars.githubusercontent.com/u/3885951?v=3","gravatar_id":"","url":"https://api.github.com/users/poiuty","html_url":"https://github.com/poiuty","followers_url":"https://api.github.com/users/poiuty/followers","following_url":"https://api.github.com/users/poiuty/following{/other_user}","gists_url":"https://api.github.com/users/poiuty/gists{/gist_id}","starred_url":"https://api.github.com/users/poiuty/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/poiuty/subscriptions","organizations_url":"https://api.github.com/users/poiuty/orgs","repos_url":"https://api.github.com/users/poiuty/repos","events_url":"https://api.github.com/users/poiuty/events{/privacy}","received_events_url":"https://api.github.com/users/poiuty/received_events","type":"User","site_admin":false},"created_at":"2015-12-04T16:05:54Z","updated_at":"2015-12-04T16:05:54Z","body":"@kernelOfTruth - dont help for me (already set 0)\r\n```\r\ncat /sys/module/spl/parameters/spl_taskq_thread_dynamic \r\n0\r\n```"}}