Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. 2019/12/03 14:26:14 fuzzer started 2019/12/03 14:26:16 dialing manager at 10.128.0.26:45711 2019/12/03 14:26:16 syscalls: 2689 2019/12/03 14:26:16 code coverage: enabled 2019/12/03 14:26:16 comparison tracing: enabled 2019/12/03 14:26:16 extra coverage: extra coverage is not supported by the kernel 2019/12/03 14:26:16 setuid sandbox: enabled 2019/12/03 14:26:16 namespace sandbox: enabled 2019/12/03 14:26:16 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 14:26:16 fault injection: enabled 2019/12/03 14:26:16 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 14:26:16 net packet injection: enabled 2019/12/03 14:26:16 net device setup: enabled 2019/12/03 14:26:16 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 14:26:16 devlink PCI setup: PCI device 0000:00:10.0 is not available 14:26:17 executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000300)={0x12, 0x82, 0x4, 0x8c8}, 0x3c) bpf$MAP_DELETE_ELEM(0x4, &(0x7f0000000080)={r0}, 0x20) 14:26:17 executing program 1: r0 = socket$rds(0x15, 0x5, 0x0) bind$rds(r0, &(0x7f0000000040)={0x2, 0x4e21, @remote}, 0x10) sendmsg$rds(r0, &(0x7f0000000340)={&(0x7f0000000080)={0x2, 0x104e21, @remote}, 0x10, &(0x7f0000000300)=[{&(0x7f00000000c0)=""/16, 0xc649}], 0x1}, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = dup2(r1, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) recvmmsg(r0, &(0x7f0000000f80)=[{{0x0, 0x0, &(0x7f0000000840)=[{&(0x7f0000000180)=""/129, 0x81}, {&(0x7f00000011c0)=""/4096, 0x1000}], 0x2}}], 0x1, 0x220, 0x0) syzkaller login: [ 65.236692][ T8486] IPVS: ftp: loaded support on port[0] = 21 14:26:17 executing program 2: r0 = openat$nvram(0xffffffffffffff9c, &(0x7f0000000000)='/dev/nvram\x00', 0x80, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) close(r0) [ 65.360443][ T8488] IPVS: ftp: loaded support on port[0] = 21 [ 65.386643][ T8486] chnl_net:caif_netlink_parms(): no params data found [ 65.518074][ T8486] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.519200][ T8491] IPVS: ftp: loaded support on port[0] = 21 [ 65.525697][ T8486] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.548485][ T8486] device bridge_slave_0 entered promiscuous mode [ 65.568854][ T8486] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.576044][ T8486] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.589296][ T8486] device bridge_slave_1 entered promiscuous mode [ 65.623257][ T8486] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.660025][ T8486] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 14:26:18 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180)='/dev/kvm\x00', 0x0, 0x0) ioctl$KVM_GET_SUPPORTED_CPUID(r0, 0xc008ae05, &(0x7f0000000040)=""/72) [ 65.730691][ T8486] team0: Port device team_slave_0 added [ 65.738540][ T8488] chnl_net:caif_netlink_parms(): no params data found [ 65.762429][ T8486] team0: Port device team_slave_1 added [ 65.872069][ T8486] device hsr_slave_0 entered promiscuous mode 14:26:18 executing program 4: r0 = socket$inet_udplite(0x2, 0x2, 0x88) sendmmsg$inet(r0, &(0x7f0000001080)=[{{&(0x7f00000004c0)={0x2, 0x4e22, @loopback}, 0x10, 0x0, 0x0, &(0x7f0000000000)=[@ip_retopts={{0x28, 0x0, 0x7, {[@ra={0x94, 0x6}, @timestamp={0x44, 0x10, 0x8, 0x3, 0x0, [{}, {}, {}]}]}}}], 0x28}}], 0x1, 0x0) [ 65.937739][ T8486] device hsr_slave_1 entered promiscuous mode [ 66.019132][ T8491] chnl_net:caif_netlink_parms(): no params data found [ 66.081472][ T8495] IPVS: ftp: loaded support on port[0] = 21 [ 66.135670][ T8488] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.148084][ T8488] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.155668][ T8488] device bridge_slave_0 entered promiscuous mode [ 66.179911][ T8488] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.187046][ T8488] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.201015][ T8488] device bridge_slave_1 entered promiscuous mode [ 66.216857][ T8497] IPVS: ftp: loaded support on port[0] = 21 [ 66.232484][ T8486] netdevsim netdevsim0 netdevsim0: renamed from eth0 14:26:18 executing program 5: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000540)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TIOCSPTLCK(r0, 0x5423, &(0x7f0000000580)=0x1) [ 66.294681][ T8491] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.306465][ T8491] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.317195][ T8491] device bridge_slave_0 entered promiscuous mode [ 66.336392][ T8486] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.427182][ T8488] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.443359][ T8491] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.451455][ T8491] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.459812][ T8491] device bridge_slave_1 entered promiscuous mode [ 66.478118][ T8491] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.488346][ T8486] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.533144][ T8488] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.559607][ T8500] IPVS: ftp: loaded support on port[0] = 21 [ 66.565782][ T8491] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.580995][ T8486] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.628039][ T8488] team0: Port device team_slave_0 added [ 66.649076][ T8491] team0: Port device team_slave_0 added [ 66.661381][ T8491] team0: Port device team_slave_1 added [ 66.671607][ T8488] team0: Port device team_slave_1 added [ 66.761182][ T8488] device hsr_slave_0 entered promiscuous mode [ 66.807654][ T8488] device hsr_slave_1 entered promiscuous mode [ 66.878462][ T8488] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.940715][ T8491] device hsr_slave_0 entered promiscuous mode [ 66.967691][ T8491] device hsr_slave_1 entered promiscuous mode [ 67.037545][ T8491] debugfs: Directory 'hsr0' with parent '/' already present! [ 67.098371][ T8495] chnl_net:caif_netlink_parms(): no params data found [ 67.145498][ T8497] chnl_net:caif_netlink_parms(): no params data found [ 67.176300][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.183777][ T8495] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.191657][ T8495] device bridge_slave_0 entered promiscuous mode [ 67.246886][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.254512][ T8495] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.262578][ T8495] device bridge_slave_1 entered promiscuous mode [ 67.291130][ T8488] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.351672][ T8491] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 67.409709][ T8497] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.416981][ T8497] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.425118][ T8497] device bridge_slave_0 entered promiscuous mode [ 67.433864][ T8497] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.441180][ T8497] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.449178][ T8497] device bridge_slave_1 entered promiscuous mode [ 67.456222][ T8488] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.529404][ T8488] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.562424][ T8488] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.624774][ T8491] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 67.693528][ T8491] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 67.741001][ T8491] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 67.814089][ T8500] chnl_net:caif_netlink_parms(): no params data found [ 67.828855][ T8495] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.846161][ T8497] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.867681][ T8495] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.883822][ T8497] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.922612][ T8495] team0: Port device team_slave_0 added [ 67.941691][ T8500] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.950637][ T8500] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.961096][ T8500] device bridge_slave_0 entered promiscuous mode [ 67.970681][ T8500] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.978261][ T8500] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.985966][ T8500] device bridge_slave_1 entered promiscuous mode [ 68.003966][ T8497] team0: Port device team_slave_0 added [ 68.012399][ T8495] team0: Port device team_slave_1 added [ 68.025672][ T8486] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.044008][ T8497] team0: Port device team_slave_1 added [ 68.062660][ T8500] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.121424][ T8495] device hsr_slave_0 entered promiscuous mode [ 68.177898][ T8495] device hsr_slave_1 entered promiscuous mode [ 68.217582][ T8495] debugfs: Directory 'hsr0' with parent '/' already present! [ 68.226893][ T8500] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.262901][ T8500] team0: Port device team_slave_0 added [ 68.310775][ T8497] device hsr_slave_0 entered promiscuous mode [ 68.348443][ T8497] device hsr_slave_1 entered promiscuous mode [ 68.387607][ T8497] debugfs: Directory 'hsr0' with parent '/' already present! [ 68.406214][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.415260][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.425817][ T8500] team0: Port device team_slave_1 added [ 68.435389][ T8486] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.499531][ T8500] device hsr_slave_0 entered promiscuous mode [ 68.550599][ T8500] device hsr_slave_1 entered promiscuous mode [ 68.588323][ T8500] debugfs: Directory 'hsr0' with parent '/' already present! [ 68.632957][ T8497] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 68.670402][ T8497] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 68.730720][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.740413][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.749154][ T8501] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.756599][ T8501] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.764975][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.773898][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.782351][ T8501] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.789463][ T8501] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.797018][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.807723][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.829505][ T8495] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 68.870232][ T8495] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 68.909735][ T8497] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 68.971157][ T8497] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 69.024553][ T8491] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.036463][ T8495] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 69.084713][ T8495] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 69.143194][ T8488] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.160800][ T8500] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 69.190535][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.206123][ T8491] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.215361][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.226149][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.243130][ T8500] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 69.301820][ T8500] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 69.355409][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.364726][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.374266][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.383194][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.392036][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.400588][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.409707][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.417638][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.426687][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.438337][ T8500] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 69.481737][ T8488] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.503366][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.512860][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.522585][ T8501] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.529713][ T8501] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.537450][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.545957][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.554555][ T8501] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.561628][ T8501] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.590214][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.599449][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.609080][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.618522][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.627095][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.634196][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.642717][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.651425][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.660134][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.668505][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.675537][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.683796][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.692650][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.701186][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.709669][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.717911][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.726839][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.734755][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.745998][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.772814][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.783943][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.792744][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.801717][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.827881][ T8491] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.842148][ T8491] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.856475][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.865100][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.874206][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.883851][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.892844][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.901746][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.910439][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.919299][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.928353][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.936510][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.945322][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.955517][ T8505] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.969353][ T8488] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.003651][ T8491] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.021638][ T3207] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.029362][ T3207] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.065922][ T8497] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.074706][ T3207] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.095042][ T3207] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.108925][ T8495] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.128115][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.135553][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.143413][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.152970][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.166812][ T8500] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.176980][ T8486] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.191356][ T8495] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.215611][ T8488] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.251031][ T8500] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.278323][ T8497] 8021q: adding VLAN 0 to HW filter on device team0 [ 175.277293][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 175.284081][ C1] rcu: 1-...!: (10499 ticks this GP) idle=3c2/1/0x4000000000000002 softirq=13248/13248 fqs=148 [ 175.294726][ C1] (t=10501 jiffies g=7133 q=154) [ 175.299753][ C1] rcu: rcu_preempt kthread starved for 10206 jiffies! g7133 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 175.310838][ C1] rcu: RCU grace-period kthread stack dump: [ 175.316811][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 175.324716][ C1] Call Trace: [ 175.328010][ C1] __schedule+0x9a0/0xcc0 [ 175.332860][ C1] schedule+0x181/0x210 [ 175.337007][ C1] schedule_timeout+0x14f/0x240 [ 175.341847][ C1] ? run_local_timers+0x120/0x120 [ 175.347037][ C1] rcu_gp_kthread+0xed8/0x1770 [ 175.351801][ C1] kthread+0x332/0x350 [ 175.355858][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 175.361047][ C1] ? kthread_blkcg+0xe0/0xe0 [ 175.365626][ C1] ret_from_fork+0x24/0x30 [ 175.370052][ C1] NMI backtrace for cpu 1 [ 175.374460][ C1] CPU: 1 PID: 8507 Comm: syz-executor.2 Not tainted 5.4.0-syzkaller #0 [ 175.382872][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.392929][ C1] Call Trace: [ 175.396209][ C1] [ 175.399053][ C1] dump_stack+0x1fb/0x318 [ 175.403376][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 175.408214][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 175.414379][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 175.420609][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 175.426582][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 175.432465][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 175.437572][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 175.442767][ C1] ? trace_hardirqs_off+0x74/0x80 [ 175.447788][ C1] update_process_times+0x12d/0x180 [ 175.454023][ C1] tick_sched_timer+0x263/0x420 [ 175.458950][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.464486][ C1] __hrtimer_run_queues+0x403/0x840 [ 175.469783][ C1] hrtimer_interrupt+0x38c/0xda0 [ 175.474725][ C1] ? debug_smp_processor_id+0x9/0x20 [ 175.480014][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 175.485554][ C1] apic_timer_interrupt+0xf/0x20 [ 175.490513][ C1] [ 175.493449][ C1] RIP: 0010:free_thread_stack+0x18b/0x590 [ 175.499243][ 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 [ 175.519793][ C1] RSP: 0018:ffffc90002327cb8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 175.528194][ C1] RAX: 1ffff110126b7771 RBX: ffff8880935bbb88 RCX: ffff888085102180 [ 175.536172][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002686fc0 [ 175.544145][ C1] RBP: ffffc90002327cf0 R08: 000000000003a768 R09: fffffbfff120248a [ 175.552109][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880935bbc20 [ 175.560074][ C1] R13: dffffc0000000000 R14: 1ffff110126b7784 R15: ffff8880849a3768 [ 175.568060][ C1] ? free_thread_stack+0x168/0x590 [ 175.573165][ C1] put_task_stack+0xa3/0x130 [ 175.577831][ C1] finish_task_switch+0x3f1/0x550 [ 175.582864][ C1] __schedule+0x9a8/0xcc0 [ 175.587186][ C1] ? check_preemption_disabled+0xb4/0x260 [ 175.592894][ C1] schedule+0x181/0x210 [ 175.597042][ C1] prepare_exit_to_usermode+0x2d4/0x5b0 [ 175.602584][ C1] syscall_return_slowpath+0x113/0x4a0 [ 175.608031][ C1] ? __x64_sys_futex+0xe5/0x100 [ 175.612872][ C1] do_syscall_64+0x11f/0x1c0 [ 175.617452][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 175.623332][ C1] RIP: 0033:0x45a679 [ 175.627218][ C1] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 175.646894][ C1] RSP: 002b:00007ffd380d60b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 175.655311][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000045a679 [ 175.663269][ C1] RDX: 0000000000000000 RSI: 0000000000000081 RDI: 000000000075bf28 [ 175.671228][ C1] RBP: 000000000075bf2c R08: 00007fbfcf005700 R09: ffffffffffffffff [ 175.679192][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf20 [ 175.687153][ C1] R13: 0000000000000004 R14: 0000000000000000 R15: 000000000075bf2c