Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 37.721902][ T27] audit: type=1400 audit(1617318956.002:8): avc: denied { execmem } for pid=5868 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 37.750417][ T5869] IPVS: ftp: loaded support on port[0] = 21 [ 38.354607][ T5863] can: request_module (can-proto-0) failed. [ 39.753930][ T5863] can: request_module (can-proto-0) failed. [ 39.765047][ T5863] can: request_module (can-proto-0) failed. [ 39.806571][ T27] audit: type=1400 audit(1617318958.093:9): avc: denied { create } for pid=5858 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 '10.128.10.12' (ECDSA) to the list of known hosts. 2021/04/01 23:16:05 parsed 1 programs 2021/04/01 23:16:05 executed programs: 0 [ 46.776495][ T27] audit: type=1400 audit(1617318965.067:10): avc: denied { execmem } for pid=5956 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 46.863696][ T5959] IPVS: ftp: loaded support on port[0] = 21 [ 46.883818][ T5968] IPVS: ftp: loaded support on port[0] = 21 [ 46.891013][ T5961] IPVS: ftp: loaded support on port[0] = 21 [ 46.897747][ T5963] IPVS: ftp: loaded support on port[0] = 21 [ 46.954155][ T5966] IPVS: ftp: loaded support on port[0] = 21 [ 47.012840][ T5964] IPVS: ftp: loaded support on port[0] = 21 [ 47.185720][ T5959] chnl_net:caif_netlink_parms(): no params data found [ 47.321669][ T5959] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.331166][ T5959] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.344670][ T5959] device bridge_slave_0 entered promiscuous mode [ 47.394737][ T5963] chnl_net:caif_netlink_parms(): no params data found [ 47.408021][ T5959] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.416215][ T5959] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.424320][ T5959] device bridge_slave_1 entered promiscuous mode [ 47.463933][ T5961] chnl_net:caif_netlink_parms(): no params data found [ 47.487105][ T5968] chnl_net:caif_netlink_parms(): no params data found [ 47.502247][ T5966] chnl_net:caif_netlink_parms(): no params data found [ 47.521429][ T5959] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 47.564689][ T5959] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 47.663785][ T5961] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.670986][ T5961] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.679741][ T5961] device bridge_slave_0 entered promiscuous mode [ 47.697710][ T5963] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.705511][ T5963] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.713891][ T5963] device bridge_slave_0 entered promiscuous mode [ 47.724604][ T5959] team0: Port device team_slave_0 added [ 47.735665][ T5964] chnl_net:caif_netlink_parms(): no params data found [ 47.750119][ T5961] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.757346][ T5961] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.767207][ T5961] device bridge_slave_1 entered promiscuous mode [ 47.774577][ T5966] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.782815][ T5966] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.790763][ T5966] device bridge_slave_0 entered promiscuous mode [ 47.797914][ T5963] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.805228][ T5963] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.813880][ T5963] device bridge_slave_1 entered promiscuous mode [ 47.822547][ T5959] team0: Port device team_slave_1 added [ 47.828623][ T5968] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.835674][ T5968] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.844045][ T5968] device bridge_slave_0 entered promiscuous mode [ 47.855200][ T5968] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.863793][ T5968] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.871735][ T5968] device bridge_slave_1 entered promiscuous mode [ 47.885074][ T5966] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.892768][ T5966] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.900903][ T5966] device bridge_slave_1 entered promiscuous mode [ 47.967148][ T5964] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.977058][ T5964] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.986774][ T5964] device bridge_slave_0 entered promiscuous mode [ 48.002121][ T5966] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.013793][ T5963] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.026004][ T5968] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.037140][ T5961] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.079870][ T5959] device hsr_slave_0 entered promiscuous mode [ 48.138446][ T5959] device hsr_slave_1 entered promiscuous mode [ 48.199028][ T5964] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.206094][ T5964] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.214688][ T5964] device bridge_slave_1 entered promiscuous mode [ 48.223089][ T5966] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.233755][ T5963] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.244703][ T5968] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.256213][ T5961] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.322154][ T5964] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.353589][ T5966] team0: Port device team_slave_0 added [ 48.363724][ T5964] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.388743][ T5968] team0: Port device team_slave_0 added [ 48.396816][ T5963] team0: Port device team_slave_0 added [ 48.408408][ T5961] team0: Port device team_slave_0 added [ 48.415653][ T5966] team0: Port device team_slave_1 added [ 48.433524][ T5968] team0: Port device team_slave_1 added [ 48.442337][ T5963] team0: Port device team_slave_1 added [ 48.451262][ T5961] team0: Port device team_slave_1 added [ 48.470009][ T5964] team0: Port device team_slave_0 added [ 48.480792][ T5964] team0: Port device team_slave_1 added [ 48.551597][ T5966] device hsr_slave_0 entered promiscuous mode [ 48.598123][ T5966] device hsr_slave_1 entered promiscuous mode [ 48.638010][ T5966] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 48.645849][ T5966] Cannot create hsr debugfs directory [ 48.729537][ T5963] device hsr_slave_0 entered promiscuous mode [ 48.768089][ T5963] device hsr_slave_1 entered promiscuous mode [ 48.827890][ T5963] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 48.835468][ T5963] Cannot create hsr debugfs directory [ 48.910341][ T5961] device hsr_slave_0 entered promiscuous mode [ 48.968693][ T5961] device hsr_slave_1 entered promiscuous mode [ 49.008125][ T5961] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 49.015773][ T5961] Cannot create hsr debugfs directory [ 49.059829][ T5968] device hsr_slave_0 entered promiscuous mode [ 49.098287][ T5968] device hsr_slave_1 entered promiscuous mode [ 49.137679][ T5968] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 49.145258][ T5968] Cannot create hsr debugfs directory [ 49.190503][ T5964] device hsr_slave_0 entered promiscuous mode [ 49.227891][ T5964] device hsr_slave_1 entered promiscuous mode [ 49.267790][ T5964] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 49.275387][ T5964] Cannot create hsr debugfs directory [ 49.285448][ T5959] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.377806][ T5959] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.431718][ T5959] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.500493][ T5959] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.571066][ T5966] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 49.610383][ T5966] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 49.674900][ T5966] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 49.719656][ T5966] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 49.807776][ T5963] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 49.852469][ T5963] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 49.899624][ T5963] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 49.939720][ T5963] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 50.034285][ T5961] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 50.088737][ T5961] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 50.139737][ T5961] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 50.183135][ T5959] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.204540][ T5961] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 50.293165][ T5959] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.319463][ T5964] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 50.365997][ T5964] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 50.408463][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.418436][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.426044][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.435975][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.444973][ T2452] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.452289][ T2452] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.460874][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.469892][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.478580][ T2452] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.485625][ T2452] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.494604][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.509045][ T6862] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.531456][ T5964] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 50.571641][ T5964] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 50.635999][ T5966] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.645625][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.654539][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.673164][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.705438][ T5968] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 50.775308][ T5966] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.787643][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.795501][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.805588][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.814474][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.823348][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.832585][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.840780][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.849559][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 50.858301][ T6898] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.877213][ T5968] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 50.942143][ T5968] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 50.991403][ T5959] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.015805][ T6875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.025032][ T6875] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.036341][ T6875] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.044602][ T6875] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.057664][ T5968] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 51.151043][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 51.160095][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.169858][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.179063][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.186114][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.194831][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.203335][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.211717][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.221034][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.257996][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.266531][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.277012][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.285602][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.295092][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.303603][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.312670][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.321409][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.330542][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.344035][ T5963] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.361764][ T5966] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.373837][ T5959] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.394562][ T5963] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.415070][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.423989][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.441128][ T5961] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.476926][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.486034][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.508782][ C0] hrtimer: interrupt took 26338 ns [ 51.516531][ T5895] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.523648][ T5895] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.547317][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.558061][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.586452][ T5895] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.594073][ T5895] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.603165][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.612754][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.622192][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.648337][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 51.664442][ T5966] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.727779][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.736198][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.752021][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.761644][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready 2021/04/01 23:16:10 executed programs: 9 [ 51.770995][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.806439][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.815757][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.829051][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.838566][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.859159][ T3437] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.879408][ T5961] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.891147][ T5963] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.911648][ T5963] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.943477][ T5964] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.954355][ T6887] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.977196][ T6887] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.999114][ T5968] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.032981][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.044249][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.070906][ T5895] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.078097][ T5895] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.109221][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.117520][ T5895] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.145736][ T5968] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.159754][ T5964] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.173986][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 52.183530][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.211378][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.242445][ T2452] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.249607][ T2452] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.258852][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.267958][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.277166][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.285827][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.294777][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.303098][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.311776][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.320099][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.328007][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.338885][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.347344][ T2452] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.354574][ T2452] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.362722][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.371868][ T2452] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.380453][ T2452] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.387623][ T2452] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.399476][ T5963] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.418367][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.426035][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 52.434911][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 52.444154][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.453769][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.463166][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.472552][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.481377][ T37] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.488562][ T37] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.496839][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.505508][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.514203][ T37] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.521433][ T37] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.529502][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.547275][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.555581][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.587333][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.606066][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.637658][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.670977][ T5961] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.683974][ T5961] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.696699][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.713480][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.722842][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.731495][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.740760][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.749601][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.758498][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.766965][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.775233][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.783957][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.792958][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.802739][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.811292][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.820743][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.829843][ T6873] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.842781][ T5964] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.863227][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.871517][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.881307][ T1315] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.910067][ T5968] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.922724][ T5968] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.932850][ T6905] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.941181][ T6905] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.949358][ T6905] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.957245][ T6905] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.964696][ T6905] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.973430][ T6905] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.983182][ T5961] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.017091][ T5964] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.066831][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.079659][ T6900] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.109081][ T5968] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 250.841181][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 250.847888][ C0] rcu: 0-...!: (10500 ticks this GP) idle=20e/1/0x4000000000000000 softirq=8682/8682 fqs=0 [ 250.858823][ C0] (t=10501 jiffies g=6197 q=408) [ 250.863848][ C0] rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g6197 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 250.876507][ C0] rcu: Possible timer handling issue on cpu=0 timer-softirq=1790 [ 250.884304][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g6197 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 250.895664][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 250.905624][ C0] rcu: RCU grace-period kthread stack dump: [ 250.911507][ C0] task:rcu_preempt state:I stack:28744 pid: 13 ppid: 2 flags:0x00004000 [ 250.920708][ C0] Call Trace: [ 250.923990][ C0] __schedule+0xf86/0x2180 [ 250.928412][ C0] ? io_schedule_timeout+0x150/0x150 [ 250.934674][ C0] ? __free_object+0xf80/0xf80 [ 250.939437][ C0] schedule+0xdb/0x280 [ 250.943501][ C0] schedule_timeout+0x133/0x220 [ 250.948352][ C0] ? usleep_range+0x160/0x160 [ 250.953020][ C0] ? __next_timer_interrupt+0x160/0x160 [ 250.958654][ C0] ? prepare_to_swait_exclusive+0x330/0x330 [ 250.964567][ C0] rcu_gp_kthread+0xcf6/0x2200 [ 250.969338][ C0] ? call_rcu+0x7d0/0x7d0 [ 250.973661][ C0] ? trace_hardirqs_on+0x2b/0x150 [ 250.978679][ C0] ? __kasan_check_read+0x11/0x20 [ 250.983788][ C0] ? __kthread_parkme+0xae/0x1c0 [ 250.988827][ C0] ? call_rcu+0x7d0/0x7d0 [ 250.993151][ C0] kthread+0x37d/0x460 [ 250.997229][ C0] ? __kthread_bind_mask+0xa0/0xa0 [ 251.002335][ C0] ret_from_fork+0x1f/0x30 [ 251.006855][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 251.013169][ C0] NMI backtrace for cpu 0 [ 251.017484][ C0] CPU: 0 PID: 6981 Comm: syz-executor.5 Not tainted 5.12.0-rc5-syzkaller #0 [ 251.026143][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 251.036288][ C0] Call Trace: [ 251.039565][ C0] [ 251.042406][ C0] dump_stack+0x114/0x14e [ 251.046736][ C0] nmi_cpu_backtrace.cold+0x30/0x9c [ 251.051933][ C0] ? lapic_can_unplug_cpu+0x80/0x80 [ 251.057133][ C0] nmi_trigger_cpumask_backtrace+0x120/0x170 [ 251.063109][ C0] arch_trigger_cpumask_backtrace+0x14/0x20 [ 251.069444][ C0] rcu_check_gp_kthread_starvation+0x1a1/0x1b8 [ 251.075609][ C0] rcu_sched_clock_irq.cold+0x677/0x11b6 [ 251.081246][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 251.086380][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.091926][ C0] ? lock_is_held_type+0xdf/0x140 [ 251.097039][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.102577][ C0] ? __raise_softirq_irqoff+0x97/0x1e0 [ 251.108035][ C0] update_process_times+0x139/0x1b0 [ 251.113237][ C0] tick_sched_handle+0x77/0x140 [ 251.118078][ C0] ? get_cpu_iowait_time_us+0x330/0x330 [ 251.123619][ C0] tick_sched_timer+0x142/0x230 [ 251.128726][ C0] __hrtimer_run_queues+0x1b7/0xc30 [ 251.133930][ C0] ? hrtimer_sleeper_start_expires+0x90/0x90 [ 251.139899][ C0] ? ktime_get_update_offsets_now+0x47/0x240 [ 251.146074][ C0] ? ktime_get_update_offsets_now+0x8c/0x240 [ 251.152139][ C0] hrtimer_interrupt+0x2f3/0x950 [ 251.157082][ C0] __sysvec_apic_timer_interrupt+0x143/0x530 [ 251.163056][ C0] sysvec_apic_timer_interrupt+0x98/0xc0 [ 251.168682][ C0] [ 251.171617][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 251.177599][ C0] RIP: 0010:unwind_next_frame.part.0+0x123/0x750 [ 251.183920][ C0] Code: 1d 02 00 00 49 8d 46 d8 49 39 c5 0f 84 02 03 00 00 48 8d 7b 50 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 <0f> 85 62 04 00 00 4c 8b 73 50 4d 85 f6 0f 84 a3 02 00 00 48 c7 43 [ 251.203790][ C0] RSP: 0018:ffffc90003d97438 EFLAGS: 00000246 [ 251.209856][ C0] RAX: dffffc0000000000 RBX: ffffc90003d974a8 RCX: 1ffff920007b2e9f [ 251.217826][ C0] RDX: ffff88810890e400 RSI: ffffffff83b8122a RDI: ffffc90003d974f8 [ 251.225805][ C0] RBP: ffffc90003d97480 R08: 1ffff920007b2e9d R09: ffffc90003d974d0 [ 251.233788][ C0] R10: ffffc90003d974e0 R11: 0000000000008400 R12: 0000000000000000 [ 251.241760][ C0] R13: ffffc90003d97868 R14: ffffc90003d97f58 R15: ffffc90003d97500 [ 251.249736][ C0] ? tty_open+0x14a/0xf60 [ 251.254069][ C0] ? unwind_next_frame.part.0+0x151/0x750 [ 251.259790][ C0] ? create_prof_cpu_mask+0x20/0x20 [ 251.264981][ C0] unwind_next_frame+0x32/0x50 [ 251.269741][ C0] arch_stack_walk+0x7d/0xe0 [ 251.274327][ C0] ? tty_open+0x14a/0xf60 [ 251.278654][ C0] stack_trace_save+0x8f/0xc0 [ 251.283324][ C0] ? stack_trace_consume_entry+0x170/0x170 [ 251.289121][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.294756][ C0] ? __kasan_check_read+0x11/0x20 [ 251.300307][ C0] ? __lock_acquire+0x1710/0x53d0 [ 251.305874][ C0] kasan_save_stack+0x23/0x50 [ 251.310545][ C0] ? kasan_save_stack+0x23/0x50 [ 251.315389][ C0] ? __kasan_kmalloc+0x7f/0xa0 [ 251.320151][ C0] ? kmem_cache_alloc_trace+0x20b/0x400 [ 251.325688][ C0] ? tty_open+0x14a/0xf60 [ 251.330020][ C0] ? lockdep_hardirqs_on_prepare+0x450/0x450 [ 251.335994][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.341538][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.347178][ C0] ? lock_is_held_type+0x100/0x140 [ 251.352285][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 251.357916][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 251.363545][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.369087][ C0] ? lock_is_held_type+0x100/0x140 [ 251.374192][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 251.379820][ C0] ? kmem_cache_alloc_trace+0x2fa/0x400 [ 251.385365][ C0] __kasan_kmalloc+0x7f/0xa0 [ 251.389967][ C0] kmem_cache_alloc_trace+0x20b/0x400 [ 251.395337][ C0] tty_open+0x14a/0xf60 [ 251.399513][ C0] ? tty_init_dev+0x60/0x60 [ 251.404016][ C0] ? do_raw_spin_unlock+0x181/0x240 [ 251.409229][ C0] chrdev_open+0x237/0x6a0 [ 251.413644][ C0] ? cdev_device_add+0x1e0/0x1e0 [ 251.418577][ C0] ? security_file_open+0x1a7/0x420 [ 251.423792][ C0] do_dentry_open+0x42d/0xf90 [ 251.428471][ C0] ? cdev_device_add+0x1e0/0x1e0 [ 251.433406][ C0] vfs_open+0x9a/0xc0 [ 251.437382][ C0] path_openat+0xa73/0x25d0 [ 251.441877][ C0] ? irqentry_exit+0x43/0xb0 [ 251.446474][ C0] ? path_lookupat+0x660/0x660 [ 251.451236][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.456769][ C0] ? lock_is_held_type+0x100/0x140 [ 251.461875][ C0] do_filp_open+0x17d/0x3b0 [ 251.466373][ C0] ? may_open_dev+0xd0/0xd0 [ 251.470880][ C0] ? do_raw_spin_unlock+0x181/0x240 [ 251.476086][ C0] ? _raw_spin_unlock+0x28/0x50 [ 251.480950][ C0] do_sys_openat2+0x120/0x3d0 [ 251.485624][ C0] ? ktime_get+0x28/0xd0 [ 251.489858][ C0] ? native_apic_msr_write+0x58/0x80 [ 251.495134][ C0] ? build_open_flags+0x4b0/0x4b0 [ 251.500163][ C0] __x64_sys_openat+0x124/0x200 [ 251.505004][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 251.510656][ C0] ? __ia32_sys_open+0x1b0/0x1b0 [ 251.515692][ C0] ? syscall_enter_from_user_mode+0x21/0x70 [ 251.521592][ C0] ? trace_hardirqs_on+0x2b/0x150 [ 251.526616][ C0] do_syscall_64+0x32/0x80 [ 251.531422][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 251.537313][ C0] RIP: 0033:0x462209 [ 251.541227][ C0] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 251.560828][ C0] RSP: 002b:00007f2a08f1d1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 251.569236][ C0] RAX: ffffffffffffffda RBX: 000000000052bf00 RCX: 0000000000462209 [ 251.577213][ C0] RDX: 0000000000000000 RSI: 0000000020000380 RDI: ffffffffffffff9c [ 251.585190][ C0] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 251.593170][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 251.601280][ C0] R13: 00000000004f8a08 R14: 00000000004b41d5 R15: 00007f2a08f1d6bc [ 251.609316][ C0] NMI backtrace for cpu 0 [ 251.613645][ C0] CPU: 0 PID: 6981 Comm: syz-executor.5 Not tainted 5.12.0-rc5-syzkaller #0 [ 251.622319][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 251.632570][ C0] Call Trace: [ 251.636020][ C0] [ 251.638868][ C0] dump_stack+0x114/0x14e [ 251.643211][ C0] nmi_cpu_backtrace.cold+0x30/0x9c [ 251.648404][ C0] ? lapic_can_unplug_cpu+0x80/0x80 [ 251.653953][ C0] nmi_trigger_cpumask_backtrace+0x120/0x170 [ 251.659935][ C0] arch_trigger_cpumask_backtrace+0x14/0x20 [ 251.665825][ C0] rcu_dump_cpu_stacks+0x1cc/0x252 [ 251.671051][ C0] rcu_sched_clock_irq.cold+0x67c/0x11b6 [ 251.676702][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 251.681719][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.687272][ C0] ? lock_is_held_type+0xdf/0x140 [ 251.692386][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.697938][ C0] ? __raise_softirq_irqoff+0x97/0x1e0 [ 251.703510][ C0] update_process_times+0x139/0x1b0 [ 251.708722][ C0] tick_sched_handle+0x77/0x140 [ 251.713579][ C0] ? get_cpu_iowait_time_us+0x330/0x330 [ 251.719126][ C0] tick_sched_timer+0x142/0x230 [ 251.723976][ C0] __hrtimer_run_queues+0x1b7/0xc30 [ 251.729184][ C0] ? hrtimer_sleeper_start_expires+0x90/0x90 [ 251.735153][ C0] ? ktime_get_update_offsets_now+0x47/0x240 [ 251.741123][ C0] ? ktime_get_update_offsets_now+0x8c/0x240 [ 251.747235][ C0] hrtimer_interrupt+0x2f3/0x950 [ 251.752197][ C0] __sysvec_apic_timer_interrupt+0x143/0x530 [ 251.758193][ C0] sysvec_apic_timer_interrupt+0x98/0xc0 [ 251.763866][ C0] [ 251.766796][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 251.772767][ C0] RIP: 0010:unwind_next_frame.part.0+0x123/0x750 [ 251.779086][ C0] Code: 1d 02 00 00 49 8d 46 d8 49 39 c5 0f 84 02 03 00 00 48 8d 7b 50 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 <0f> 85 62 04 00 00 4c 8b 73 50 4d 85 f6 0f 84 a3 02 00 00 48 c7 43 [ 251.798701][ C0] RSP: 0018:ffffc90003d97438 EFLAGS: 00000246 [ 251.804766][ C0] RAX: dffffc0000000000 RBX: ffffc90003d974a8 RCX: 1ffff920007b2e9f [ 251.812729][ C0] RDX: ffff88810890e400 RSI: ffffffff83b8122a RDI: ffffc90003d974f8 [ 251.820798][ C0] RBP: ffffc90003d97480 R08: 1ffff920007b2e9d R09: ffffc90003d974d0 [ 251.828759][ C0] R10: ffffc90003d974e0 R11: 0000000000008400 R12: 0000000000000000 [ 251.836724][ C0] R13: ffffc90003d97868 R14: ffffc90003d97f58 R15: ffffc90003d97500 [ 251.844708][ C0] ? tty_open+0x14a/0xf60 [ 251.849046][ C0] ? unwind_next_frame.part.0+0x151/0x750 [ 251.854762][ C0] ? create_prof_cpu_mask+0x20/0x20 [ 251.859963][ C0] unwind_next_frame+0x32/0x50 [ 251.864725][ C0] arch_stack_walk+0x7d/0xe0 [ 251.869317][ C0] ? tty_open+0x14a/0xf60 [ 251.873677][ C0] stack_trace_save+0x8f/0xc0 [ 251.878348][ C0] ? stack_trace_consume_entry+0x170/0x170 [ 251.884148][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.889906][ C0] ? __kasan_check_read+0x11/0x20 [ 251.895272][ C0] ? __lock_acquire+0x1710/0x53d0 [ 251.900553][ C0] kasan_save_stack+0x23/0x50 [ 251.905240][ C0] ? kasan_save_stack+0x23/0x50 [ 251.910079][ C0] ? __kasan_kmalloc+0x7f/0xa0 [ 251.914943][ C0] ? kmem_cache_alloc_trace+0x20b/0x400 [ 251.920475][ C0] ? tty_open+0x14a/0xf60 [ 251.924803][ C0] ? lockdep_hardirqs_on_prepare+0x450/0x450 [ 251.930784][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.936324][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.941859][ C0] ? lock_is_held_type+0x100/0x140 [ 251.946961][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 251.952603][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 251.958237][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 251.963774][ C0] ? lock_is_held_type+0x100/0x140 [ 251.968882][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 251.974509][ C0] ? kmem_cache_alloc_trace+0x2fa/0x400 [ 251.980076][ C0] __kasan_kmalloc+0x7f/0xa0 [ 251.984660][ C0] kmem_cache_alloc_trace+0x20b/0x400 [ 251.990027][ C0] tty_open+0x14a/0xf60 [ 251.994183][ C0] ? tty_init_dev+0x60/0x60 [ 251.998771][ C0] ? do_raw_spin_unlock+0x181/0x240 [ 252.003964][ C0] chrdev_open+0x237/0x6a0 [ 252.008375][ C0] ? cdev_device_add+0x1e0/0x1e0 [ 252.013309][ C0] ? security_file_open+0x1a7/0x420 [ 252.018506][ C0] do_dentry_open+0x42d/0xf90 [ 252.023195][ C0] ? cdev_device_add+0x1e0/0x1e0 [ 252.028127][ C0] vfs_open+0x9a/0xc0 [ 252.032104][ C0] path_openat+0xa73/0x25d0 [ 252.036598][ C0] ? irqentry_exit+0x43/0xb0 [ 252.041193][ C0] ? path_lookupat+0x660/0x660 [ 252.045954][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 252.051576][ C0] ? lock_is_held_type+0x100/0x140 [ 252.056684][ C0] do_filp_open+0x17d/0x3b0 [ 252.061184][ C0] ? may_open_dev+0xd0/0xd0 [ 252.065721][ C0] ? do_raw_spin_unlock+0x181/0x240 [ 252.070918][ C0] ? _raw_spin_unlock+0x28/0x50 [ 252.075863][ C0] do_sys_openat2+0x120/0x3d0 [ 252.080531][ C0] ? ktime_get+0x28/0xd0 [ 252.084770][ C0] ? native_apic_msr_write+0x58/0x80 [ 252.090074][ C0] ? build_open_flags+0x4b0/0x4b0 [ 252.095107][ C0] __x64_sys_openat+0x124/0x200 [ 252.099945][ C0] ? check_preemption_disabled+0x3d/0xe0 [ 252.105569][ C0] ? __ia32_sys_open+0x1b0/0x1b0 [ 252.110499][ C0] ? syscall_enter_from_user_mode+0x21/0x70 [ 252.116377][ C0] ? trace_hardirqs_on+0x2b/0x150 [ 252.121398][ C0] do_syscall_64+0x32/0x80 [ 252.125805][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 252.131689][ C0] RIP: 0033:0x462209 [ 252.135577][ C0] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 252.155190][ C0] RSP: 002b:00007f2a08f1d1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 252.163598][ C0] RAX: ffffffffffffffda RBX: 000000000052bf00 RCX: 0000000000462209 [ 252.171561][ C0] RDX: 0000000000000000 RSI: 0000000020000380 RDI: ffffffffffffff9c [ 252.179531][ C0] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 252.187678][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 252.195641][ C0] R13: 00000000004f8a08 R14: 00000000004b41d5 R15: 00007f2a08f1d6bc [ 252.204003][ C0] sched: RT throttling activated [ 252.222482][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 198s! [ 252.231818][ C0] Showing busy workqueues and worker pools: [ 252.237718][ C0] workqueue events: flags=0x0 [ 252.242414][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=14/256 refcnt=15 [ 252.251026][ C0] in-flight: 5895:nsim_fib_event_work, 37:nsim_dev_trap_report_work, 6898:nsim_fib_event_work [ 252.261653][ C0] pending: nsim_dev_trap_report_work, psi_avgs_work, rht_deferred_worker, psi_avgs_work, ovs_dp_masks_rebalance, psi_avgs_work, cache_reap, psi_avgs_work, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance [ 252.283816][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=19/256 refcnt=20 [ 252.291641][ C0] in-flight: 1315:nsim_fib_event_work, 6900:delayed_fput, 6887:nsim_fib_event_work nsim_fib_event_work [ 252.303129][ C0] pending: linkwatch_event, nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, nsim_dev_trap_report_work, perf_sched_delayed, psi_avgs_work, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance, psi_avgs_work, ovs_dp_masks_rebalance, psi_avgs_work, check_corruption, vmstat_shepherd, cache_reap [ 252.333476][ C0] workqueue events_long: flags=0x0 [ 252.338586][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 252.346235][ C0] pending: defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler [ 252.357319][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 252.364970][ C0] pending: defense_work_handler, defense_work_handler, defense_work_handler [ 252.374045][ C0] workqueue events_freezable: flags=0x4 [ 252.379584][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 252.387237][ C0] pending: update_balloon_stats_func [ 252.392915][ C0] workqueue events_power_efficient: flags=0x80 [ 252.399058][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 252.406747][ C0] pending: gc_worker, neigh_periodic_work [ 252.412863][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 252.420517][ C0] pending: fb_flashcursor, reg_check_chans_work, check_lifetime, neigh_periodic_work [ 252.430385][ C0] workqueue mm_percpu_wq: flags=0x8 [ 252.435606][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 252.443259][ C0] pending: vmstat_update [ 252.447896][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 252.455548][ C0] pending: vmstat_update [ 252.460176][ C0] workqueue cgroup_pidlist_destroy: flags=0x0 [ 252.466254][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 252.473833][ C0] pending: cgroup_pidlist_destroy_work_fn [ 252.479999][ C0] workqueue writeback: flags=0x4a [ 252.485078][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 252.493555][ C0] in-flight: 24:wb_workfn [ 252.498353][ C0] workqueue dm_bufio_cache: flags=0x8 [ 252.503746][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 252.511494][ C0] pending: work_fn [ 252.515612][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 252.521260][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=87 [ 252.528831][ C0] pending: addrconf_dad_work [ 252.533884][ C0] delayed: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work [ 252.534422][ C0] , addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work [ 252.680996][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=62 [ 252.688584][ C0] pending: addrconf_dad_work [ 252.693623][ C0] delayed: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work [ 252.694068][ C0] , addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_verify_work [ 252.799176][ C0] workqueue bat_events: flags=0xe000a [ 252.804565][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=38 [ 252.811775][ C0] in-flight: 5827:batadv_nc_worker [ 252.817328][ C0] delayed: batadv_nc_worker, batadv_nc_worker, batadv_nc_worker, batadv_nc_worker, batadv_nc_worker, batadv_mcast_mla_update, batadv_purge_orig, batadv_mcast_mla_update, batadv_purge_orig, batadv_purge_orig, batadv_purge_orig, batadv_tt_purge, batadv_tt_purge, batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_tt_purge, batadv_purge_orig, batadv_mcast_mla_update, batadv_mcast_mla_update, batadv_mcast_mla_update, batadv_mcast_mla_update, batadv_purge_orig, batadv_tt_purge, batadv_tt_purge, batadv_dat_purge, batadv_bla_periodic_work [ 252.883823][ C0] pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=192s workers=9 idle: 6873 5 3437 6907 6875 11 [ 252.893991][ C0] pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=198s workers=10 idle: 6862 6905 6945 6944 2452 6946 19 [ 252.905144][ C0] pool 4: cpus=0-1 flags=0x4 nice=0 hung=192s workers=6 idle: 133 176 7 36