[ 45.298880][ T24] audit: type=1800 audit(1575371054.199:25): pid=8232 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 45.321364][ T24] audit: type=1800 audit(1575371054.209:26): pid=8232 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 45.363862][ T24] audit: type=1800 audit(1575371054.209:27): pid=8232 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 46.051097][ T8296] sshd (8296) used greatest stack depth: 24000 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.134' (ECDSA) to the list of known hosts. 2019/12/03 11:04:26 fuzzer started 2019/12/03 11:04:28 dialing manager at 10.128.0.26:38907 2019/12/03 11:04:28 syscalls: 2697 2019/12/03 11:04:28 code coverage: enabled 2019/12/03 11:04:28 comparison tracing: enabled 2019/12/03 11:04:28 extra coverage: extra coverage is not supported by the kernel 2019/12/03 11:04:28 setuid sandbox: enabled 2019/12/03 11:04:28 namespace sandbox: enabled 2019/12/03 11:04:28 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 11:04:28 fault injection: enabled 2019/12/03 11:04:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 11:04:28 net packet injection: enabled 2019/12/03 11:04:28 net device setup: enabled 2019/12/03 11:04:28 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 11:04:28 devlink PCI setup: PCI device 0000:00:10.0 is not available 11:04:29 executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SDTEFACILITIES(r0, 0x89eb, 0x0) 11:04:29 executing program 1: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140)='/dev/kvm\x00', 0x0, 0x0) syz_open_dev$mice(&(0x7f0000000000)='/dev/input/mice\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_REGISTER_COALESCED_MMIO(0xffffffffffffffff, 0x4010ae67, &(0x7f0000000040)) ioctl$TUNSETQUEUE(0xffffffffffffffff, 0x400454d9, 0x0) ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) syzkaller login: [ 60.738748][ T8395] IPVS: ftp: loaded support on port[0] = 21 [ 60.894687][ T8395] chnl_net:caif_netlink_parms(): no params data found 11:04:29 executing program 2: r0 = syz_open_dev$video4linux(&(0x7f0000000200)='/dev/v4l-subdev#\x00', 0x0, 0x0) ioctl$VIDIOC_SUBDEV_S_FMT(r0, 0xc0585605, &(0x7f0000000000)={0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x2, 0x919c0b370c043e8b}}) [ 60.937968][ T8398] IPVS: ftp: loaded support on port[0] = 21 [ 60.993714][ T8395] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.003014][ T8395] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.012985][ T8395] device bridge_slave_0 entered promiscuous mode [ 61.031605][ T8395] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.041659][ T8395] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.049854][ T8395] device bridge_slave_1 entered promiscuous mode [ 61.094383][ T8395] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.142049][ T8395] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 11:04:30 executing program 3: ioctl$KVM_SET_REGS(0xffffffffffffffff, 0x4090ae82, &(0x7f00000001c0)) mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x800000, 0x3, &(0x7f0000130000/0x800000)=nil) r0 = gettid() process_vm_writev(r0, &(0x7f0000000000)=[{&(0x7f00008f9f09)=""/247, 0xf7}], 0x1, &(0x7f0000121000)=[{&(0x7f0000217f28)=""/231, 0xffffff4e}], 0x23a, 0x0) madvise(&(0x7f000061f000/0x3000)=nil, 0x3000, 0x8) [ 61.197357][ T8398] chnl_net:caif_netlink_parms(): no params data found [ 61.212823][ T8395] team0: Port device team_slave_0 added [ 61.233278][ T8395] team0: Port device team_slave_1 added [ 61.309813][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.317003][ T8398] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.325808][ T8401] IPVS: ftp: loaded support on port[0] = 21 [ 61.339625][ T8398] device bridge_slave_0 entered promiscuous mode 11:04:30 executing program 4: r0 = add_key$keyring(&(0x7f0000000200)='keyring\x00', &(0x7f00000000c0)={'syz', 0x0}, 0x0, 0x0, 0xfffffffffffffffe) keyctl$chown(0x4, r0, 0xee00, 0x0) [ 61.481335][ T8395] device hsr_slave_0 entered promiscuous mode [ 61.549090][ T8395] device hsr_slave_1 entered promiscuous mode [ 61.591822][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.608807][ T8398] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.616742][ T8398] device bridge_slave_1 entered promiscuous mode [ 61.647382][ T8403] IPVS: ftp: loaded support on port[0] = 21 [ 61.685990][ T8405] IPVS: ftp: loaded support on port[0] = 21 [ 61.741356][ T8398] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.755356][ T8395] netdevsim netdevsim0 netdevsim0: renamed from eth0 11:04:30 executing program 5: syz_mount_image$f2fs(&(0x7f0000000240)='f2fs\x00', &(0x7f0000000340)='./file0\x00', 0x0, 0x1, &(0x7f0000000200)=[{&(0x7f00000000c0)="1020f5f20100070009000000030000000c0000000900000001000000020000000000000000300000000000000e00000016000000020000000200000002000000020000000e0000000000000000", 0x4d, 0x1400}], 0x0, 0x0) [ 61.794936][ T8395] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.858373][ T8398] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.884712][ T8395] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.971953][ T8395] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.045059][ T8398] team0: Port device team_slave_0 added [ 62.052740][ T8398] team0: Port device team_slave_1 added [ 62.128150][ T8407] IPVS: ftp: loaded support on port[0] = 21 [ 62.128196][ T8401] chnl_net:caif_netlink_parms(): no params data found [ 62.222016][ T8398] device hsr_slave_0 entered promiscuous mode [ 62.259196][ T8398] device hsr_slave_1 entered promiscuous mode [ 62.308979][ T8398] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.375139][ T8401] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.382786][ T8401] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.391832][ T8401] device bridge_slave_0 entered promiscuous mode [ 62.420554][ T8401] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.427731][ T8401] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.437185][ T8401] device bridge_slave_1 entered promiscuous mode [ 62.473614][ T8401] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.492791][ T8398] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.541975][ T8398] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.618375][ T8401] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.630389][ T8403] chnl_net:caif_netlink_parms(): no params data found [ 62.654165][ T8398] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.732333][ T8398] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.788005][ T8401] team0: Port device team_slave_0 added [ 62.797611][ T8401] team0: Port device team_slave_1 added [ 62.804230][ T8403] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.812227][ T8403] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.820353][ T8403] device bridge_slave_0 entered promiscuous mode [ 62.830333][ T8405] chnl_net:caif_netlink_parms(): no params data found [ 62.847481][ T8403] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.855311][ T8403] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.863070][ T8403] device bridge_slave_1 entered promiscuous mode [ 62.917995][ T8403] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.936109][ T8405] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.945264][ T8405] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.954040][ T8405] device bridge_slave_0 entered promiscuous mode [ 62.978614][ T8403] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.005380][ T8405] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.013121][ T8405] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.020894][ T8405] device bridge_slave_1 entered promiscuous mode [ 63.038600][ T8405] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.048171][ T8407] chnl_net:caif_netlink_parms(): no params data found [ 63.059274][ T8403] team0: Port device team_slave_0 added [ 63.131791][ T8401] device hsr_slave_0 entered promiscuous mode [ 63.189218][ T8401] device hsr_slave_1 entered promiscuous mode [ 63.228920][ T8401] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.238231][ T8405] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.259843][ T8405] team0: Port device team_slave_0 added [ 63.270176][ T8405] team0: Port device team_slave_1 added [ 63.277577][ T8403] team0: Port device team_slave_1 added [ 63.372795][ T8405] device hsr_slave_0 entered promiscuous mode [ 63.429194][ T8405] device hsr_slave_1 entered promiscuous mode [ 63.468912][ T8405] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.485789][ T8395] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.493962][ T8407] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.502761][ T8407] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.510743][ T8407] device bridge_slave_0 entered promiscuous mode [ 63.541783][ T8407] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.549823][ T8407] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.557628][ T8407] device bridge_slave_1 entered promiscuous mode [ 63.611863][ T8403] device hsr_slave_0 entered promiscuous mode [ 63.649915][ T8403] device hsr_slave_1 entered promiscuous mode [ 63.688907][ T8403] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.724339][ T8407] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.745695][ T8395] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.753441][ T8401] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.791064][ T8401] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.832753][ T8407] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.846474][ T8405] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.892701][ T3777] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.902443][ T3777] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.920427][ T8401] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.973436][ T8401] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 64.025937][ T8405] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 64.070912][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.080679][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.089274][ T8413] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.096599][ T8413] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.105101][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.113833][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.122276][ T8413] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.129370][ T8413] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.136844][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.145792][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.161065][ T8407] team0: Port device team_slave_0 added [ 64.170792][ T8405] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 64.220621][ T8405] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 64.285380][ T2989] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.298254][ T8407] team0: Port device team_slave_1 added [ 64.334707][ T8403] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 64.380491][ T8403] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 64.421624][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.430543][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.439348][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.448306][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.456975][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.501648][ T8407] device hsr_slave_0 entered promiscuous mode [ 64.539195][ T8407] device hsr_slave_1 entered promiscuous mode [ 64.589073][ T8407] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.612193][ T8395] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.625705][ T8395] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.638467][ T8403] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 64.673661][ T8398] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.684402][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.694325][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.703623][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.712239][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.723195][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.733322][ T8403] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 64.813832][ T8398] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.835372][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.835829][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.854054][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.863349][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.875038][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.882259][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.893559][ T8411] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.940052][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.949566][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.958040][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.965152][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.979046][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.986635][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.001750][ T8407] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 65.076131][ T8407] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 65.121856][ T8407] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 65.173346][ T8407] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 65.243473][ T8395] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.257315][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.266357][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.275277][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.284663][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.295046][ T8413] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.328043][ T8398] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.340629][ T8398] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.360833][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.370068][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.378357][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.387186][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.395763][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.404640][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.419907][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.445006][ T8401] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.470567][ T8405] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.490985][ T8411] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.498520][ T8411] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 170.538698][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 170.545549][ C1] rcu: 1-...!: (10499 ticks this GP) idle=0ce/1/0x4000000000000002 softirq=11861/11861 fqs=3 [ 170.556047][ C1] (t=10500 jiffies g=6845 q=207) [ 170.561423][ C1] rcu: rcu_preempt kthread starved for 10494 jiffies! g6845 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 170.572505][ C1] rcu: RCU grace-period kthread stack dump: [ 170.578385][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 170.586275][ C1] Call Trace: [ 170.589857][ C1] __schedule+0x9a0/0xcc0 [ 170.594387][ C1] schedule+0x181/0x210 [ 170.599428][ C1] schedule_timeout+0x14f/0x240 [ 170.604376][ C1] ? run_local_timers+0x120/0x120 [ 170.609396][ C1] rcu_gp_kthread+0xed8/0x1770 [ 170.614159][ C1] kthread+0x332/0x350 [ 170.618212][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 170.623327][ C1] ? kthread_blkcg+0xe0/0xe0 [ 170.627907][ C1] ret_from_fork+0x24/0x30 [ 170.632329][ C1] NMI backtrace for cpu 1 [ 170.636662][ C1] CPU: 1 PID: 8411 Comm: kworker/1:3 Not tainted 5.4.0-syzkaller #0 [ 170.644627][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 170.654683][ C1] Workqueue: events linkwatch_event [ 170.659968][ C1] Call Trace: [ 170.663262][ C1] [ 170.666130][ C1] dump_stack+0x1fb/0x318 [ 170.670475][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 170.675491][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 170.681631][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 170.687688][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 170.693674][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 170.699564][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 170.704878][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 170.710081][ C1] ? trace_hardirqs_off+0x74/0x80 [ 170.715097][ C1] update_process_times+0x12d/0x180 [ 170.720291][ C1] tick_sched_timer+0x263/0x420 [ 170.726691][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.732287][ C1] __hrtimer_run_queues+0x403/0x840 [ 170.737673][ C1] hrtimer_interrupt+0x38c/0xda0 [ 170.742643][ C1] ? debug_smp_processor_id+0x9/0x20 [ 170.747930][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 170.753472][ C1] apic_timer_interrupt+0xf/0x20 [ 170.758415][ C1] [ 170.761346][ C1] RIP: 0010:free_thread_stack+0x18b/0x590 [ 170.767051][ C1] Code: ff ff e8 28 04 00 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 eb a3 69 00 48 8b 1b e9 82 ff ff ff e8 de 2c 2e [ 170.786727][ C1] RSP: 0018:ffffc900023a7700 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 170.795126][ C1] RAX: 1ffff11011ffa8d1 RBX: ffff88808ffd4688 RCX: ffff888092902180 [ 170.803085][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00024a6700 [ 170.811056][ C1] RBP: ffffc900023a7738 R08: dffffc0000000000 R09: fffffbfff120248a [ 170.819014][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88808ffd4720 [ 170.827109][ C1] R13: dffffc0000000000 R14: 1ffff11011ffa8e4 R15: ffff88808f9a1928 [ 170.835122][ C1] put_task_stack+0xa3/0x130 [ 170.839714][ C1] finish_task_switch+0x3f1/0x550 [ 170.844747][ C1] __schedule+0x9a8/0xcc0 [ 170.849076][ C1] ? ___preempt_schedule+0x16/0x18 [ 170.854439][ C1] preempt_schedule+0xdb/0x120 [ 170.859193][ C1] ___preempt_schedule+0x16/0x18 [ 170.864129][ C1] ? vprintk_emit+0x2fe/0x3a0 [ 170.868808][ C1] ? vprintk_emit+0x368/0x3a0 [ 170.873500][ C1] vprintk_emit+0x36d/0x3a0 [ 170.878014][ C1] vprintk_default+0x28/0x30 [ 170.882626][ C1] vprintk_func+0x158/0x170 [ 170.887131][ C1] printk+0x62/0x8d [ 170.890937][ C1] ? addrconf_notify+0xb6b/0x3c90 [ 170.895950][ C1] ? addrconf_notify+0x779/0x3c90 [ 170.900967][ C1] addrconf_notify+0x2c8d/0x3c90 [ 170.905899][ C1] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 170.911170][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 170.916541][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 170.922072][ C1] ? trace_hardirqs_on+0x74/0x80 [ 170.927021][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 170.932387][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 170.937934][ C1] ? tls_dev_event+0x619/0xc00 [ 170.942696][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 170.948234][ C1] ? ip6mr_device_event+0x1ee/0x210 [ 170.953428][ C1] raw_notifier_call_chain+0xec/0x190 [ 170.958796][ C1] netdev_state_change+0x147/0x1f0 [ 170.963917][ C1] linkwatch_do_dev+0x10e/0x160 [ 170.968773][ C1] __linkwatch_run_queue+0x446/0x730 [ 170.974072][ C1] linkwatch_event+0x4c/0x60 [ 170.978689][ C1] process_one_work+0x7ef/0x10d0 [ 170.983636][ C1] worker_thread+0xc01/0x1630 [ 170.988326][ C1] kthread+0x332/0x350 [ 170.992379][ C1] ? rcu_lock_release+0x30/0x30 [ 170.997215][ C1] ? kthread_blkcg+0xe0/0xe0 [ 171.001793][ C1] ret_from_fork+0x24/0x30