Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 22.943532][ C1] random: crng init done [ 22.947780][ C1] random: 7 urandom warning(s) missed due to ratelimiting [ 29.369648][ T27] audit: type=1400 audit(1607352334.571:8): avc: denied { execmem } for pid=6034 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 29.376076][ T6035] IPVS: ftp: loaded support on port[0] = 21 [ 29.842641][ T6032] can: request_module (can-proto-0) failed. [ 31.148358][ T6032] can: request_module (can-proto-0) failed. [ 31.156292][ T6032] can: request_module (can-proto-0) failed. [ 31.176243][ T27] audit: type=1400 audit(1607352336.382:9): avc: denied { create } for pid=6018 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 Warning: Permanently added '10.128.15.213' (ECDSA) to the list of known hosts. 2020/12/07 14:45:42 parsed 1 programs 2020/12/07 14:45:43 executed programs: 0 [ 37.792523][ T27] audit: type=1400 audit(1607352342.997:10): avc: denied { execmem } for pid=6154 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 38.991184][ T6159] IPVS: ftp: loaded support on port[0] = 21 [ 38.999717][ T6164] IPVS: ftp: loaded support on port[0] = 21 [ 39.031932][ T6165] IPVS: ftp: loaded support on port[0] = 21 [ 39.040858][ T6156] IPVS: ftp: loaded support on port[0] = 21 [ 39.060030][ T6162] IPVS: ftp: loaded support on port[0] = 21 [ 39.081909][ T6160] IPVS: ftp: loaded support on port[0] = 21 [ 39.132736][ T6162] chnl_net:caif_netlink_parms(): no params data found [ 39.165690][ T6164] chnl_net:caif_netlink_parms(): no params data found [ 39.180304][ T6159] chnl_net:caif_netlink_parms(): no params data found [ 39.195357][ T6165] chnl_net:caif_netlink_parms(): no params data found [ 39.237529][ T6162] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.246571][ T6162] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.254156][ T6162] device bridge_slave_0 entered promiscuous mode [ 39.262191][ T6162] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.270291][ T6162] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.277533][ T6162] device bridge_slave_1 entered promiscuous mode [ 39.288284][ T6156] chnl_net:caif_netlink_parms(): no params data found [ 39.300521][ T6159] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.307595][ T6159] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.315019][ T6159] device bridge_slave_0 entered promiscuous mode [ 39.322211][ T6159] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.329604][ T6159] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.336844][ T6159] device bridge_slave_1 entered promiscuous mode [ 39.363020][ T6159] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.376031][ T6159] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.393922][ T6162] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.403692][ T6165] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.411022][ T6165] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.418229][ T6165] device bridge_slave_0 entered promiscuous mode [ 39.427902][ T6165] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.434975][ T6165] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.442567][ T6165] device bridge_slave_1 entered promiscuous mode [ 39.451204][ T6164] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.458218][ T6164] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.465688][ T6164] device bridge_slave_0 entered promiscuous mode [ 39.473511][ T6164] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.481447][ T6164] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.489066][ T6164] device bridge_slave_1 entered promiscuous mode [ 39.497659][ T6162] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.510144][ T6165] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.521070][ T6160] chnl_net:caif_netlink_parms(): no params data found [ 39.531679][ T6159] team0: Port device team_slave_0 added [ 39.539453][ T6164] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.553865][ T6156] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.561239][ T6156] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.568649][ T6156] device bridge_slave_0 entered promiscuous mode [ 39.575554][ T6165] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.589283][ T6159] team0: Port device team_slave_1 added [ 39.595265][ T6164] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.610680][ T6164] team0: Port device team_slave_0 added [ 39.617056][ T6162] team0: Port device team_slave_0 added [ 39.622863][ T6156] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.630135][ T6156] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.637334][ T6156] device bridge_slave_1 entered promiscuous mode [ 39.644814][ T6165] team0: Port device team_slave_0 added [ 39.655674][ T6164] team0: Port device team_slave_1 added [ 39.661655][ T6162] team0: Port device team_slave_1 added [ 39.672935][ T6165] team0: Port device team_slave_1 added [ 39.680509][ T6159] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.687455][ T6159] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 39.713453][ T6159] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.730416][ T6162] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.737353][ T6162] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 39.764797][ T6162] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.776278][ T6164] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.783382][ T6164] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 39.809610][ T6164] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.821199][ T6156] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.833926][ T6156] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.843346][ T6159] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.850405][ T6159] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 39.876459][ T6159] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.890551][ T6160] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.897711][ T6160] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.905152][ T6160] device bridge_slave_0 entered promiscuous mode [ 39.912115][ T6162] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.919143][ T6162] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 39.945072][ T6162] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.956101][ T6164] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.963085][ T6164] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 39.989051][ T6164] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.000073][ T6165] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.006989][ T6165] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 40.033231][ T6165] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.045509][ T6165] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.052640][ T6165] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 40.078671][ T6165] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.129076][ T6159] device hsr_slave_0 entered promiscuous mode [ 40.158193][ T6159] device hsr_slave_1 entered promiscuous mode [ 40.228774][ T6160] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.235802][ T6160] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.243402][ T6160] device bridge_slave_1 entered promiscuous mode [ 40.288802][ T6162] device hsr_slave_0 entered promiscuous mode [ 40.328146][ T6162] device hsr_slave_1 entered promiscuous mode [ 40.378073][ T6162] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 40.385730][ T6162] Cannot create hsr debugfs directory [ 40.393249][ T6156] team0: Port device team_slave_0 added [ 40.449222][ T6164] device hsr_slave_0 entered promiscuous mode [ 40.488294][ T6164] device hsr_slave_1 entered promiscuous mode [ 40.538111][ T6164] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 40.545653][ T6164] Cannot create hsr debugfs directory [ 40.554859][ T6156] team0: Port device team_slave_1 added [ 40.571805][ T6160] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.608903][ T6165] device hsr_slave_0 entered promiscuous mode [ 40.668179][ T6165] device hsr_slave_1 entered promiscuous mode [ 40.717968][ T6165] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 40.725667][ T6165] Cannot create hsr debugfs directory [ 40.740991][ T6156] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.748346][ T6156] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 40.774602][ T6156] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.787255][ T6160] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.800233][ T6160] team0: Port device team_slave_0 added [ 40.807111][ T6160] team0: Port device team_slave_1 added [ 40.817030][ T6156] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.824055][ T6156] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 40.850039][ T6156] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.865372][ T6160] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.877726][ T6160] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 40.903938][ T6160] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.948942][ T6156] device hsr_slave_0 entered promiscuous mode [ 40.968250][ T17] Bluetooth: hci3: command 0x0409 tx timeout [ 40.968251][ T2480] Bluetooth: hci2: command 0x0409 tx timeout [ 40.968486][ T17] Bluetooth: hci4: command 0x0409 tx timeout [ 40.988002][ T6156] device hsr_slave_1 entered promiscuous mode [ 41.037928][ T6156] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 41.045467][ T6156] Cannot create hsr debugfs directory [ 41.051262][ T17] Bluetooth: hci5: command 0x0409 tx timeout [ 41.057254][ T17] Bluetooth: hci0: command 0x0409 tx timeout [ 41.063832][ T6160] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 41.070805][ T6160] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 41.096830][ T6160] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 41.097238][ T17] Bluetooth: hci1: command 0x0409 tx timeout [ 41.122739][ T6159] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 41.169816][ T6159] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 41.258812][ T6160] device hsr_slave_0 entered promiscuous mode [ 41.307754][ T6160] device hsr_slave_1 entered promiscuous mode [ 41.347702][ T6160] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 41.355239][ T6160] Cannot create hsr debugfs directory [ 41.360694][ T6159] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 41.420883][ T6159] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 41.505036][ T6162] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 41.538817][ T6162] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 41.588812][ T6162] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 41.634782][ T6162] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 41.679130][ T6165] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 41.758307][ T6165] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 41.803693][ T6165] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 41.853979][ T6159] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.863739][ T6165] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 41.903809][ T6159] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.914854][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 41.922993][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.945170][ T6162] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.953147][ T6164] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 41.993059][ T6156] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 42.042906][ T6164] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 42.088337][ T6164] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 42.140720][ T6156] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 42.199175][ T6156] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 42.238154][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 42.246401][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.257207][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.264352][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.272841][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 42.281427][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.289615][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.296620][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.303962][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 42.312131][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 42.320254][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 42.328393][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 42.336359][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 42.344485][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.352792][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 42.360368][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.371455][ T6164] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 42.404306][ T6165] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.415090][ T6165] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.422279][ T6156] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 42.479957][ T6162] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.488328][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 42.496313][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.504729][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 42.513569][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.521526][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 42.528925][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.536216][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 42.543594][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.551219][ T6159] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.572041][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 42.580808][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.589253][ T2477] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.596252][ T2477] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.603987][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 42.612409][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.620648][ T2477] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.627721][ T2477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.635005][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 42.643274][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 42.651424][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 42.659611][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 42.667785][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 42.676173][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.684367][ T2477] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.691410][ T2477] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.698935][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 42.707007][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.715124][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 42.722678][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.730270][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 42.742870][ T6164] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.755989][ T6160] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 42.779396][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 42.786725][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 42.794716][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 42.803147][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.811466][ T2477] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.818559][ T2477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.825847][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 42.834001][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 42.842145][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 42.850309][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 42.859314][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 42.867451][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.875654][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 42.883617][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.891578][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 42.899613][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.907580][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 42.915543][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.923929][ T6159] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.934543][ T6164] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.942836][ T6165] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 42.954016][ T6165] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.962123][ T6160] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 42.987713][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.995087][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.002572][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.010031][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 43.018201][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.026835][ T6162] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 43.043446][ T6159] device veth0_vlan entered promiscuous mode [ 43.049673][ T5] Bluetooth: hci4: command 0x041b tx timeout [ 43.051783][ T6159] device veth1_vlan entered promiscuous mode [ 43.055658][ T5] Bluetooth: hci2: command 0x041b tx timeout [ 43.067437][ T6159] device veth0_macvtap entered promiscuous mode [ 43.075556][ T6159] device veth1_macvtap entered promiscuous mode [ 43.082303][ T6160] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 43.087167][ T5] Bluetooth: hci3: command 0x041b tx timeout [ 43.127079][ T6061] Bluetooth: hci1: command 0x041b tx timeout [ 43.128035][ T5] Bluetooth: hci5: command 0x041b tx timeout [ 43.133089][ T6061] Bluetooth: hci0: command 0x041b tx timeout [ 43.144861][ T6160] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 43.187568][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 43.195799][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.206689][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.213736][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.221183][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 43.229431][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.237541][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.244541][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.251886][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 43.260118][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 43.268428][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.276595][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 43.284743][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 43.293270][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 43.301254][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 43.309352][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 43.317339][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 43.325107][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.332931][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 43.340795][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 43.348523][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 43.356863][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.364692][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 43.372895][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 43.380982][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 43.388769][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 43.396261][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 43.403646][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.411248][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.418971][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 43.433996][ T6159] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 43.441524][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 43.452374][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 43.462807][ T6164] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 43.478388][ T6164] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 43.495911][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 43.503875][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.512028][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 43.520420][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 43.531446][ T6165] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 43.539759][ T6162] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 43.546590][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 43.554655][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 43.566203][ T6164] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 43.575542][ T6159] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 43.584233][ T6159] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 43.594373][ T6159] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 43.604615][ T6159] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 43.613946][ T6159] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 43.624871][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 43.632813][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 43.642325][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 43.651261][ T7459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 43.668546][ T6164] device veth0_vlan entered promiscuous mode [ 43.679671][ T6156] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.719099][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 43.729786][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.738193][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 43.746019][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.754498][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 43.762922][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.772070][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.782301][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.792662][ T6164] device veth1_vlan entered promiscuous mode [ 43.828603][ T6160] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.836535][ T6165] device veth0_vlan entered promiscuous mode [ 43.849574][ T6164] device veth0_macvtap entered promiscuous mode [ 43.856426][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 43.864348][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 43.872242][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 43.880492][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.888651][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.895978][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.903517][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 43.911761][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 43.921654][ T6165] device veth1_vlan entered promiscuous mode [ 43.929454][ T6156] 8021q: adding VLAN 0 to HW filter on device team0 [ 43.938387][ T6164] device veth1_macvtap entered promiscuous mode [ 43.950165][ T6162] device veth0_vlan entered promiscuous mode [ 43.956275][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.964586][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.975912][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 43.984159][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 43.993993][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 44.002234][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 44.010121][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 44.018478][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.026789][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 44.034560][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.042924][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.050433][ T2477] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.106262][ T6165] device veth0_macvtap entered promiscuous mode [ 44.114205][ T6164] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 44.126468][ T6164] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 44.138750][ T6164] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 44.154403][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.162109][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.170188][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 44.179873][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.188186][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 44.196320][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.206015][ T6160] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.215393][ C1] hrtimer: interrupt took 2065675 ns [ 44.264151][ T6162] device veth1_vlan entered promiscuous mode [ 44.270929][ T6164] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 44.281801][ T6164] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 44.291919][ T6164] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 44.301722][ T6165] device veth1_macvtap entered promiscuous mode [ 44.324477][ T6165] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 44.336016][ T6165] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 44.351434][ T6165] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 44.363340][ T6165] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 44.378824][ T6165] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 44.389809][ T6165] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 44.402565][ T6165] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 44.421006][ T6165] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 44.432768][ T6165] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 44.448060][ T6165] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 44.459971][ T6165] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.471228][ T6165] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.484872][ T6165] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.505285][ T6165] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.389476][ T7470] Bluetooth: hci3: command 0x040f tx timeout [ 46.395464][ T7470] Bluetooth: hci2: command 0x040f tx timeout [ 46.401435][ T7470] Bluetooth: hci4: command 0x040f tx timeout [ 46.407406][ T7470] Bluetooth: hci0: command 0x040f tx timeout [ 46.413372][ T7470] Bluetooth: hci5: command 0x040f tx timeout [ 46.419344][ T7470] Bluetooth: hci1: command 0x040f tx timeout [ 46.437161][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.444892][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.452473][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.459970][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.468179][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.476239][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.483238][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.405922][ T2480] Bluetooth: hci2: command 0x0419 tx timeout [ 48.405943][ T2480] Bluetooth: hci3: command 0x0419 tx timeout [ 48.485644][ T2480] Bluetooth: hci1: command 0x0419 tx timeout [ 48.485664][ T2480] Bluetooth: hci5: command 0x0419 tx timeout [ 48.485675][ T2480] Bluetooth: hci0: command 0x0419 tx timeout [ 48.485685][ T2480] Bluetooth: hci4: command 0x0419 tx timeout [ 50.987587][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 50.995813][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.003988][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.012192][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.020237][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.027230][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.034498][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.042738][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.873979][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.881011][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.888289][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.896501][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.904537][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.911526][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.918763][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.926792][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.934866][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.942941][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.950879][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.958888][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.966783][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 105.777581][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 105.785496][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 105.793437][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 105.801240][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 105.809331][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 105.817484][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 105.825543][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 105.842502][ T7470] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 105.850070][ T7470] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 105.857576][ T7470] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 105.864944][ T7470] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 171.017066][ T7470] Bluetooth: hci4: command 0x0406 tx timeout [ 171.023131][ T7470] Bluetooth: hci5: command 0x0406 tx timeout [ 316.066964][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 41s! [ 316.075809][ C0] Showing busy workqueues and worker pools: [ 316.081786][ C0] workqueue events: flags=0x0 [ 316.086588][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=13/256 refcnt=14 [ 316.094600][ C0] pending: kfree_rcu_monitor, nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, psi_avgs_work, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, vmstat_shepherd, cache_reap [ 316.123440][ C0] workqueue events_long: flags=0x0 [ 316.128514][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=6/256 refcnt=7 [ 316.136114][ C0] pending: defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler [ 316.150844][ C0] workqueue events_power_efficient: flags=0x80 [ 316.156971][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 316.164569][ C0] pending: gc_worker, wg_ratelimiter_gc_entries, neigh_periodic_work, neigh_periodic_work, do_cache_clean