Warning: Permanently added '[localhost]:11921' (ECDSA) to the list of known hosts. 2019/03/23 06:50:44 parsed 1 programs 2019/03/23 06:50:44 executed programs: 0 [ 121.491536] IPVS: Creating netns size=2720 id=2 [ 121.492324] IPVS: ftp: loaded support on port[0] = 21 [ 121.586033] IPVS: Creating netns size=2720 id=3 [ 121.586798] IPVS: ftp: loaded support on port[0] = 21 [ 121.692421] IPVS: Creating netns size=2720 id=4 [ 121.720952] IPVS: ftp: loaded support on port[0] = 21 [ 121.824993] IPVS: Creating netns size=2720 id=5 [ 121.825756] IPVS: ftp: loaded support on port[0] = 21 [ 122.013134] IPVS: Creating netns size=2720 id=6 [ 122.013994] IPVS: ftp: loaded support on port[0] = 21 [ 122.287017] bridge0: port 1(bridge_slave_0) entered blocking state [ 122.291002] bridge0: port 1(bridge_slave_0) entered disabled state [ 122.295848] device bridge_slave_0 entered promiscuous mode [ 122.302670] IPVS: Creating netns size=2720 id=7 [ 122.303252] IPVS: ftp: loaded support on port[0] = 21 [ 122.306197] bridge0: port 1(bridge_slave_0) entered blocking state [ 122.306931] bridge0: port 1(bridge_slave_0) entered disabled state [ 122.309627] device bridge_slave_0 entered promiscuous mode [ 122.326010] bridge0: port 2(bridge_slave_1) entered blocking state [ 122.328135] bridge0: port 2(bridge_slave_1) entered disabled state [ 122.333545] device bridge_slave_1 entered promiscuous mode [ 122.400899] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 122.457188] bridge0: port 2(bridge_slave_1) entered blocking state [ 122.458829] bridge0: port 2(bridge_slave_1) entered disabled state [ 122.464432] device bridge_slave_1 entered promiscuous mode [ 122.470703] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 122.527030] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 122.587717] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 122.763034] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 122.774107] ip (5164) used greatest stack depth: 23776 bytes left [ 122.782580] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 122.789059] bridge0: port 1(bridge_slave_0) entered blocking state [ 122.789996] bridge0: port 1(bridge_slave_0) entered disabled state [ 122.793189] device bridge_slave_0 entered promiscuous mode [ 122.865627] bridge0: port 2(bridge_slave_1) entered blocking state [ 122.866568] bridge0: port 2(bridge_slave_1) entered disabled state [ 122.869952] device bridge_slave_1 entered promiscuous mode [ 122.875146] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 122.900382] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 122.903393] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 122.950164] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 123.149383] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.151244] bridge0: port 1(bridge_slave_0) entered disabled state [ 123.157564] device bridge_slave_0 entered promiscuous mode [ 123.164123] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 123.224203] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.225680] bridge0: port 2(bridge_slave_1) entered disabled state [ 123.233749] device bridge_slave_1 entered promiscuous mode [ 123.239940] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 123.343559] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 123.347395] team0: Port device team_slave_0 added [ 123.349667] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 123.356005] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 123.358087] team0: Port device team_slave_0 added [ 123.424297] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 123.429825] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 123.431916] team0: Port device team_slave_1 added [ 123.433743] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 123.437135] team0: Port device team_slave_1 added [ 123.440757] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.441942] bridge0: port 1(bridge_slave_0) entered disabled state [ 123.446483] device bridge_slave_0 entered promiscuous mode [ 123.511324] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 123.534517] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 123.558284] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.559206] bridge0: port 2(bridge_slave_1) entered disabled state [ 123.562930] device bridge_slave_1 entered promiscuous mode [ 123.612680] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 123.619968] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 123.623005] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 123.629887] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 123.634426] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 123.641610] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 123.643738] team0: Port device team_slave_0 added [ 123.645199] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 123.646885] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.647793] bridge0: port 1(bridge_slave_0) entered disabled state [ 123.652240] device bridge_slave_0 entered promiscuous mode [ 123.658897] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 123.668457] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 123.678222] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 123.681487] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 123.683679] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 123.686066] team0: Port device team_slave_1 added [ 123.687589] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.688499] bridge0: port 2(bridge_slave_1) entered disabled state [ 123.692866] device bridge_slave_1 entered promiscuous mode [ 123.718616] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 123.751241] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 123.763242] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 123.766604] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 123.788268] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 123.819432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 123.876067] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 123.879378] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 123.888837] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 123.921561] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 123.946319] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 123.948481] team0: Port device team_slave_0 added [ 124.026079] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 124.028215] team0: Port device team_slave_1 added [ 124.058541] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 124.112860] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 124.118825] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 124.120924] team0: Port device team_slave_0 added [ 124.132134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 124.146137] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 124.148233] team0: Port device team_slave_0 added [ 124.161345] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 124.163512] team0: Port device team_slave_1 added [ 124.168004] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 124.189534] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.190470] bridge0: port 2(bridge_slave_1) entered forwarding state [ 124.191836] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.192763] bridge0: port 1(bridge_slave_0) entered forwarding state [ 124.199175] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 124.201273] team0: Port device team_slave_1 added [ 124.203989] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 124.206219] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.207177] bridge0: port 2(bridge_slave_1) entered forwarding state [ 124.208296] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.209260] bridge0: port 1(bridge_slave_0) entered forwarding state [ 124.228088] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 124.241609] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 124.253015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 124.261211] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.262121] bridge0: port 2(bridge_slave_1) entered forwarding state [ 124.263231] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.264149] bridge0: port 1(bridge_slave_0) entered forwarding state [ 124.276524] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 124.283107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 124.307100] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 124.331098] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 124.461738] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.462485] bridge0: port 2(bridge_slave_1) entered forwarding state [ 124.463365] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.464090] bridge0: port 1(bridge_slave_0) entered forwarding state [ 124.599483] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.601852] bridge0: port 2(bridge_slave_1) entered forwarding state [ 124.602725] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.603435] bridge0: port 1(bridge_slave_0) entered forwarding state [ 124.633319] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.634062] bridge0: port 2(bridge_slave_1) entered forwarding state [ 124.634944] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.635661] bridge0: port 1(bridge_slave_0) entered forwarding state [ 125.355988] 8021q: adding VLAN 0 to HW filter on device bond0 [ 125.450899] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 125.457490] 8021q: adding VLAN 0 to HW filter on device bond0 [ 125.507756] 8021q: adding VLAN 0 to HW filter on device bond0 [ 125.545031] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 125.553532] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 125.601557] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 125.650766] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 125.663337] 8021q: adding VLAN 0 to HW filter on device team0 [ 125.705587] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 125.756074] 8021q: adding VLAN 0 to HW filter on device team0 [ 125.793350] 8021q: adding VLAN 0 to HW filter on device bond0 [ 125.800552] 8021q: adding VLAN 0 to HW filter on device team0 [ 125.825774] 8021q: adding VLAN 0 to HW filter on device bond0 [ 125.833254] 8021q: adding VLAN 0 to HW filter on device bond0 [ 125.883815] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 125.927153] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 125.937898] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 126.005761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 126.026079] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 126.030999] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 126.103422] 8021q: adding VLAN 0 to HW filter on device team0 [ 126.127166] 8021q: adding VLAN 0 to HW filter on device team0 [ 126.132730] 8021q: adding VLAN 0 to HW filter on device team0 [ 290.084833] INFO: task syz-executor2:6637 blocked for more than 140 seconds. [ 290.085969] Not tainted 4.8.0-rc1+ #1 [ 290.086726] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 290.087895] syz-executor2 D ffff880059b7f730 29200 6637 4974 0x00000004 [ 290.088980] ffff880059b7f730 0000000000000006 ffff88006c822e50 ffff88006c822e28 [ 290.090274] ffff88006b6100c8 ffff880000000000 ffff88006c8224d8 ffff88006b610680 [ 290.091403] ffff88006ab5c000 ffff88006b6100c0 ffff880059b78000 ffffed000b36f001 [ 290.095127] Call Trace: [ 290.095524] [] schedule+0x9a/0x1c0 [ 290.096300] [] rwsem_down_write_failed+0x4db/0x960 [ 290.097272] [] ? rwsem_down_write_failed+0xf7/0x960 [ 290.098251] [] ? rwsem_down_read_failed+0x310/0x310 [ 290.099219] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 290.100238] [] call_rwsem_down_write_failed+0x17/0x30 [ 290.101245] [] down_write+0x5c/0xa0 [ 290.102061] [] ? process_measurement+0x544/0xe10 [ 290.103041] [] process_measurement+0x544/0xe10 [ 290.103988] [] ? ima_add_template_entry+0x790/0x790 [ 290.104996] [] ? do_dentry_open+0x7a2/0xb70 [ 290.105905] [] ? ext4_release_file+0x310/0x310 [ 290.106852] [] ima_file_check+0x1b/0x20 [ 290.107689] [] path_openat+0x856/0x2730 [ 290.108530] [] ? save_stack+0xb5/0xd0 [ 290.109351] [] ? path_lookupat+0x410/0x410 [ 290.110243] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 290.111314] [] do_filp_open+0x170/0x230 [ 290.112136] [] ? may_open_dev+0xc0/0xc0 [ 290.112991] [] ? __alloc_fd+0x195/0x4d0 [ 290.113856] [] ? _raw_spin_unlock+0x2c/0x50 [ 290.114813] [] ? __alloc_fd+0x195/0x4d0 [ 290.115628] [] do_sys_open+0x16a/0x340 [ 290.116449] [] ? entry_SYSCALL_64_fastpath+0x5/0xc1 [ 290.117482] [] ? filp_open+0x50/0x50 [ 290.118293] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 290.119301] [] SyS_openat+0xf/0x20 [ 290.120060] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 290.194744] 2 locks held by syz-executor2/6637: [ 290.195424] #0: (sb_writers#4){.+.+.+}, at: [] __sb_start_write+0xb2/0xf0 [ 290.196717] #1: (&sb->s_type->i_mutex_key#10){+.+.+.}, at: [] process_measurement+0x544/0xe10 [ 290.198244] Sending NMI to all CPUs: [ 290.198757] NMI backtrace for cpu 1 [ 290.198760] NMI backtrace for cpu 0 [ 290.198883] CPU: 0 PID: 6580 Comm: syz-executor0 Not tainted 4.8.0-rc1+ #1 [ 290.198884] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 290.198885] task: ffff88006b8d2080 task.stack: ffff88006b710000 [ 290.198886] RIP: 0010:[] [] ext4_find_extent+0xc3/0x9b0 [ 290.198887] RSP: 0018:ffff88006b7176e0 EFLAGS: 00000a06 [ 290.198888] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 290.198889] RDX: 1ffff1000d6b3dd1 RSI: 000000006fe9eb8f RDI: ffff88006b59ee8a [ 290.198890] RBP: ffff88006b717748 R08: ffff88006b59ee90 R09: 0000000000000001 [ 290.198890] R10: 0000000003c321df R11: 00000000fe6a5f46 R12: 000000006fe9eb8f [ 290.198891] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88006b59ee80 [ 290.198891] FS: 00007f73c5497700(0000) GS:ffff88006c800000(0000) knlGS:0000000000000000 [ 290.198892] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 290.198892] CR2: 00007f47e843f190 CR3: 000000006aeaa000 CR4: 00000000007406f0 [ 290.198893] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 290.198894] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 290.198894] PKRU: 00000000 [ 290.198894] Stack: [ 290.198895] 0000000003c321df 0000000000000001 ffff88006b59ee90 1ffff1000d6b3dd5 [ 290.198896] ffff88006b7177a8 ffff880040000000 ffff88006131a3b0 ffff88006131a1c0 [ 290.198896] 000000006fe9eb8f ffff88006b7179a0 ffff88006131a3b0 ffff88006b7177e8 [ 290.198897] Call Trace: [ 290.198897] [] mext_check_coverage.constprop.11+0x216/0x400 [ 290.198898] [] ? ext4_check_blockref+0x200/0x200 [ 290.198898] [] ? down_write_nested+0x45/0xa0 [ 290.198899] [] ? ext4_double_down_write_data_sem+0x52/0x60 [ 290.198899] [] ext4_move_extents+0xec0/0x29e0 [ 290.198900] [] ? ext4_double_up_write_data_sem+0x30/0x30 [ 290.198900] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 290.198901] [] ? update_fast_ctr+0x81/0xc0 [ 290.198901] [] ? preempt_count_add+0xe2/0x160 [ 290.198902] [] ? mnt_clone_write+0xbb/0x110 [ 290.198902] [] ? __mnt_want_write_file+0x5c/0x90 [ 290.198903] [] ext4_ioctl+0x2883/0x3780 [ 290.198903] [] ? ext4_ioctl_setflags+0x560/0x560 [ 290.198904] [] ? __ext4_journal_get_write_access+0x2e/0x80 [ 290.198905] [] ? avc_ss_reset+0xe0/0xe0 [ 290.198905] [] ? __lock_acquire+0xba4/0x3c30 [ 290.198906] [] ? ext4_reserve_inode_write+0x160/0x160 [ 290.198906] [] ? ___might_sleep+0x331/0x440 [ 290.198907] [] ? __might_sleep+0x90/0x1a0 [ 290.198907] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 290.198908] [] do_vfs_ioctl+0x17f/0xf10 [ 290.198908] [] ? selinux_file_ioctl+0x307/0x4b0 [ 290.198909] [] ? ioctl_preallocate+0x1d0/0x1d0 [ 290.198909] [] ? __fget+0x1e9/0x360 [ 290.198910] [] ? __fget+0x42/0x360 [ 290.198910] [] ? __might_fault+0x161/0x1b0 [ 290.198911] [] ? security_file_ioctl+0x6a/0xa0 [ 290.198911] [] SyS_ioctl+0x74/0x80 [ 290.198912] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 290.198913] Code: 0f 84 95 03 00 00 4c 89 ff 44 0f bf eb e8 96 f7 ff ff 49 8d 7f 0a 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f b6 0c 01 <48> 89 f8 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 23 06 00 00 [ 290.246734] INFO: NMI handler (arch_trigger_all_cpu_backtrace_handler) took too long to run: 47.851 msecs [ 290.248142] CPU: 1 PID: 908 Comm: khungtaskd Not tainted 4.8.0-rc1+ #1 [ 290.249110] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 290.250357] task: ffff8800691da040 task.stack: ffff8800691b8000 [ 290.251230] RIP: 0010:[] [] native_write_msr+0x6/0x30 [ 290.252452] RSP: 0018:ffff8800691bfc90 EFLAGS: 00000086 [ 290.253241] RAX: 0000000000000400 RBX: 0000000100000400 RCX: 0000000000000830 [ 290.254279] RDX: 0000000000000001 RSI: 0000000000000400 RDI: 0000000000000830 [ 290.255325] RBP: ffff8800691bfca8 R08: 0000000000000001 R09: 0000000000000000 [ 290.256393] R10: 0000000000000001 R11: 0000000000000001 R12: fffffbfff0e38538 [ 290.257472] R13: ffffffff871c59e0 R14: 0000000000080000 R15: dffffc0000000000 [ 290.258564] FS: 0000000000000000(0000) GS:ffff88006c900000(0000) knlGS:0000000000000000 [ 290.259800] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 290.260651] CR2: 0000000001749914 CR3: 0000000064d65000 CR4: 00000000007406e0 [ 290.261705] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 290.262742] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 290.263884] PKRU: 00000000 [ 290.264308] Stack: [ 290.264629] ffffffff81263fbf ffff8800691bfca8 0000000000000007 ffff8800691bfd10 [ 290.265776] ffffffff8126417a ffffffff866695b0 ffffffff00000010 0000000000000282 [ 290.266895] 00000002691bfd00 0000000000000001 0000000000000001 ffffffff868add00 [ 290.267981] Call Trace: [ 290.268356] [] ? __x2apic_send_IPI_dest.constprop.7+0x5f/0x80 [ 290.269453] [] __x2apic_send_IPI_mask+0x19a/0x2d0 [ 290.270392] [] x2apic_send_IPI_mask+0xe/0x10 [ 290.271268] [] nmi_raise_cpu_backtrace+0x5b/0x70 [ 290.272193] [] ? irq_force_complete_move+0x3e0/0x3e0 [ 290.273174] [] nmi_trigger_all_cpu_backtrace+0x148/0x160 [ 290.274231] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 290.275245] [] watchdog+0x662/0xa00 [ 290.276025] [] ? watchdog+0x109/0xa00 [ 290.276842] [] ? reset_hung_task_detector+0x10/0x10 [ 290.277837] [] kthread+0x209/0x2d0 [ 290.278588] [] ? kthread_create_on_node+0x390/0x390 [ 290.279553] [] ret_from_fork+0x1f/0x40 [ 290.280352] [] ? kthread_create_on_node+0x390/0x390 [ 290.281331] Code: c3 0f 21 c8 5d c3 0f 21 d0 5d c3 0f 21 d8 5d c3 0f 21 f0 5d c3 0f 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 89 f9 89 f0 0f 30 <0f> 1f 44 00 00 c3 89 f0 48 89 d6 55 31 d2 48 c1 e6 20 48 89 e5 [ 290.524707] Kernel panic - not syncing: hung_task: blocked tasks [ 290.525605] CPU: 1 PID: 908 Comm: khungtaskd Not tainted 4.8.0-rc1+ #1 [ 290.526536] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 290.527724] 1ffffffff0d16336 ffff8800691bfcb0 ffffffff82a40796 ffffffff85ad65a0 [ 290.528856] ffff8800691bfd88 00000000003fff00 dffffc0000000000 ffff8800691bfd78 [ 290.529978] ffffffff816430da 0000000041b58ab3 ffffffff86660d94 ffffffff81642f24 [ 290.531101] Call Trace: [ 290.531464] [] dump_stack+0xe6/0x120 [ 290.532212] [] panic+0x1b6/0x351 [ 290.532913] [] ? set_ti_thread_flag+0xf/0xf [ 290.533747] [] watchdog+0x673/0xa00 [ 290.534481] [] ? watchdog+0x109/0xa00 [ 290.535243] [] ? reset_hung_task_detector+0x10/0x10 [ 290.536169] [] kthread+0x209/0x2d0 [ 290.536898] [] ? kthread_create_on_node+0x390/0x390 [ 290.537827] [] ret_from_fork+0x1f/0x40 [ 290.538594] [] ? kthread_create_on_node+0x390/0x390 [ 290.539652] Kernel Offset: disabled