{"comment":{"created_at":"2011-10-20T14:24:54Z","body":"hi all,\r\n\r\nI seem to be having this bug, I was copying data to an external drive and suddelt the system becomes almost unresponsive and dmesg keeps giving these:\r\n\r\n[ 7458.218481] BUG: soft lockup - CPU#0 stuck for 61s! [z_null_iss/0:2719]\r\n[ 7458.224221] Modules linked in: nls_cp437 cifs sha1_generic arc4 ppp_mppe ipt_MASQUERADE iptable_nat bridge stp kvm_amd kvm ppp_async crc_ccitt sit tunnel4 zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate ipt_REJECT xt_comment ipt_LOG xt_multiport xt_limit xt_tcpudp ipt_addrtype xt_state snd_hda_codec_atihdmi ip6table_filter ip6_tables nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables snd_hda_intel fbcon tileblit font bitblit softcursor snd_hda_codec snd_hwdep edac_core snd_pcm psmouse serio_raw edac_mce_amd snd_timer snd soundcore i2c_piix4 vga16fb vgastate snd_page_alloc lp parport usbhid hid sata_promise ohci1394 pata_atiixp ieee1394 r8169 pata_jmicron ahci mii\r\n[ 7458.314220] CPU 0:\r\n[ 7458.324223] Modules linked in: nls_cp437 cifs sha1_generic arc4 ppp_mppe ipt_MASQUERADE iptable_nat bridge stp kvm_amd kvm ppp_async crc_ccitt sit tunnel4 zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate ipt_REJECT xt_comment ipt_LOG xt_multiport xt_limit xt_tcpudp ipt_addrtype xt_state snd_hda_codec_atihdmi ip6table_filter ip6_tables nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables snd_hda_intel fbcon tileblit font bitblit softcursor snd_hda_codec snd_hwdep edac_core snd_pcm psmouse serio_raw edac_mce_amd snd_timer snd soundcore i2c_piix4 vga16fb vgastate snd_page_alloc lp parport usbhid hid sata_promise ohci1394 pata_atiixp ieee1394 r8169 pata_jmicron ahci mii\r\n[ 7458.404222] Pid: 2719, comm: z_null_iss/0 Tainted: P      D    2.6.32-34-server #77-Ubuntu MS-7577\r\n[ 7458.414220] RIP: 0010:[<ffffffff810397f9>]  [<ffffffff810397f9>] __ticket_spin_lock+0x19/0x20\r\n[ 7458.434220] RSP: 0018:ffff880215699d70  EFLAGS: 00000202\r\n[ 7458.443401] RAX: 0000000000000000 RBX: ffff880215699d70 RCX: ffffc9001fbdc798\r\n[ 7458.450901] RDX: 0000000000000002 RSI: 0000000000000286 RDI: ffffc9001fbdc75c\r\n[ 7458.454220] RBP: ffffffff81013c6e R08: ffff880227102e00 R09: 0000000000000001\r\n[ 7458.464219] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000\r\n[ 7458.474221] R13: 0000000000000000 R14: ffff880215699d60 R15: ffffffff81013ace\r\n[ 7458.484223] FS:  00007fbaef9e07a0(0000) GS:ffff880009000000(0000) knlGS:0000000000000000\r\n[ 7458.502564] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b\r\n[ 7458.511733] CR2: 00007ffc93b5a000 CR3: 0000000001001000 CR4: 00000000000006f0\r\n[ 7458.520903] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\r\n[ 7458.524223] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400\r\n[ 7458.534220] Call Trace:\r\n[ 7458.544219]  [<ffffffff8155b0ce>] ? _spin_lock+0xe/0x20\r\n[ 7458.554220]  [<ffffffff815598d5>] ? __mutex_unlock_slowpath+0x25/0x60\r\n[ 7458.564222]  [<ffffffff815598ab>] ? mutex_unlock+0x1b/0x20\r\n[ 7458.574221]  [<ffffffffa0361d45>] ? zio_done+0x4b5/0xc00 [zfs]\r\n[ 7458.584219]  [<ffffffffa0360fb9>] ? zio_execute+0x99/0xf0 [zfs]\r\n[ 7458.594220]  [<ffffffffa0214ee6>] ? taskq_thread+0x1b6/0x310 [spl]\r\n[ 7458.604222]  [<ffffffff8105df90>] ? default_wake_function+0x0/0x20\r\n[ 7458.614220]  [<ffffffffa0214d30>] ? taskq_thread+0x0/0x310 [spl]\r\n[ 7458.624219]  [<ffffffff81085db6>] ? kthread+0x96/0xa0\r\n[ 7458.633398]  [<ffffffff810141aa>] ? child_rip+0xa/0x20\r\n[ 7458.642565]  [<ffffffff81085d20>] ? kthread+0x0/0xa0\r\n[ 7458.651732]  [<ffffffff810141a0>] ? child_rip+0x0/0x20\r\n\r\nItried zpool status after this and I have been wating for the output for over an hour...\r\n\r\nis there any progress on this bug? Is there a determened cause? what can I do to help?\r\n\r\nregards,\r\n\r\nruurd","updated_at":"2011-10-20T14:24:54Z","url":"https://api.github.com/repos/zfsonlinux/zfs/issues/comments/2469255","id":2469255,"user":{"avatar_url":"https://secure.gravatar.com/avatar/8b3bb24c80a552aaa9d73bb7090253ad?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"8b3bb24c80a552aaa9d73bb7090253ad","url":"https://api.github.com/users/ruurdzfs","id":1140880,"login":"ruurdzfs"}},"action":"created","issue":{"number":275,"created_at":"2011-06-14T16:45:43Z","pull_request":{"diff_url":null,"patch_url":null,"html_url":null},"body":"Steve Costaras reports:\r\n\r\n\"Just got this error this morning.   Don't know if it's already covered or not.    this keeps z_wr_int/9 at 100%, system is not hung, but can't do anything with the pools.\"\r\n\r\n<pre>\r\n[238486.654778] BUG: soft lockup - CPU#9 stuck for 61s! [z_wr_int/9:6911]\r\n[238486.658020] CPU 9:\r\n[238486.658042] Pid: 6911, comm: z_wr_int/9 Tainted: P           2.6.32-32-server #62-Ubuntu X8DTH-i/6/iF/6F\r\n[238486.658044] RIP: 0010:[<ffffffff81039763>]  [<ffffffff81039763>] __ticket_spin_lock+0x13/0x20\r\n[238486.658053] RSP: 0018:ffff880625a67c10  EFLAGS: 00000202\r\n[238486.658055] RAX: 0000000000000000 RBX: ffff880625a67c10 RCX: dead000000100100\r\n[238486.658056] RDX: 0000000000000010 RSI: ffffc900295102a8 RDI: ffffc9001b55922c\r\n[238486.658057] RBP: ffffffff81013cae R08: 0000000000000000 R09: 4bbae7d4f33a4a54\r\n[238486.658059] R10: 0000000000000002 R11: 0000000000000000 R12: ffff880625a67bb0\r\n[238486.658060] R13: ffffffff81559fae R14: ffff880625a67b80 R15: ffff8805ca7cc6a8\r\n[238486.658062] FS:  0000000000000000(0000) GS:ffff88034ac60000(0000) knlGS:0000000000000000\r\n[238486.658064] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b\r\n[238486.658065] CR2: 00007f9f7f1901e0 CR3: 0000000001001000 CR4: 00000000000006e0\r\n[238486.658067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\r\n[238486.658068] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400\r\n[238486.658070] Call Trace:\r\n[238486.658075]  [<ffffffff81559fae>] ? _spin_lock+0xe/0x20\r\n[238486.658080]  [<ffffffff815587b5>] ? __mutex_unlock_slowpath+0x25/0x60\r\n[238486.658083]  [<ffffffff8155878b>] ? mutex_unlock+0x1b/0x20\r\n[238486.658111]  [<ffffffffa0300304>] ? zio_remove_child+0xb4/0xf0 [zfs]\r\n[238486.658130]  [<ffffffffa0304aaf>] ? zio_done+0x2af/0xc00 [zfs]\r\n[238486.658136]  [<ffffffffa01d35a6>] ? kmem_free_debug+0x16/0x20 [spl]\r\n[238486.658156]  [<ffffffffa02cc624>] ? vdev_mirror_map_free+0x24/0x30 [zfs]\r\n[238486.658176]  [<ffffffffa0304e8e>] ? zio_done+0x68e/0xc00 [zfs]\r\n[238486.658195]  [<ffffffffa0304e8e>] ? zio_done+0x68e/0xc00 [zfs]\r\n[238486.658215]  [<ffffffffa0304e8e>] ? zio_done+0x68e/0xc00 [zfs]\r\n[238486.658235]  [<ffffffffa0303f29>] ? zio_execute+0x99/0xf0 [zfs]\r\n[238486.658240]  [<ffffffffa01d4e86>] ? taskq_thread+0x1b6/0x310 [spl]\r\n[238486.658243]  [<ffffffff8105df00>] ? default_wake_function+0x0/0x20\r\n[238486.658248]  [<ffffffffa01d4cd0>] ? taskq_thread+0x0/0x310 [spl]\r\n[238486.658251]  [<ffffffff81085d16>] ? kthread+0x96/0xa0\r\n[238486.658254]  [<ffffffff810141ea>] ? child_rip+0xa/0x20\r\n[238486.658256]  [<ffffffff81085c80>] ? kthread+0x0/0xa0\r\n[238486.658258]  [<ffffffff810141e0>] ? child_rip+0x0/0x20\r\n[238552.155831] BUG: soft lockup - CPU#9 stuck for 61s! [z_wr_int/9:6911]\r\n[238552.159198] CPU 9:\r\n[238552.159219] Pid: 6911, comm: z_wr_int/9 Tainted: P           2.6.32-32-server #62-Ubuntu X8DTH-i/6/iF/6F\r\n</pre>","comments":4,"title":"zio soft lockup","updated_at":"2011-10-20T14:24:54Z","url":"https://api.github.com/repos/zfsonlinux/zfs/issues/275","id":1056115,"assignee":null,"milestone":{"number":10,"created_at":"2011-05-01T20:06:19Z","due_on":"2011-12-31T08:00:00Z","title":"0.6.0","creator":{"avatar_url":"https://secure.gravatar.com/avatar/ea1f5fb7eefd51c5d308e2b78dbdf921?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"ea1f5fb7eefd51c5d308e2b78dbdf921","url":"https://api.github.com/users/behlendorf","id":148917,"login":"behlendorf"},"url":"https://api.github.com/repos/zfsonlinux/zfs/milestones/10","open_issues":45,"closed_issues":16,"description":"ZFS on Linux v0.6.0 - Official stable release which includes the ZFS Posix Layer (ZPL)","state":"open"},"closed_at":null,"user":{"avatar_url":"https://secure.gravatar.com/avatar/ea1f5fb7eefd51c5d308e2b78dbdf921?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"ea1f5fb7eefd51c5d308e2b78dbdf921","url":"https://api.github.com/users/behlendorf","id":148917,"login":"behlendorf"},"html_url":"https://github.com/zfsonlinux/zfs/issues/275","labels":[{"name":"Bug","url":"https://api.github.com/repos/zfsonlinux/zfs/labels/Bug","color":"e10c02"}],"state":"open"},"legacy":{"issue_id":1056115,"comment_id":2469255}}