[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 31.516244] IPVS: ftp: loaded support on port[0] = 21 [ 31.867680] can: request_module (can-proto-0) failed. [ 31.876378] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts. 2020/11/25 02:54:30 parsed 1 programs 2020/11/25 02:54:31 executed programs: 0 [ 39.808198] IPVS: ftp: loaded support on port[0] = 21 [ 39.842429] IPVS: ftp: loaded support on port[0] = 21 [ 39.896847] chnl_net:caif_netlink_parms(): no params data found [ 39.923269] IPVS: ftp: loaded support on port[0] = 21 [ 39.998848] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.005758] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.013886] device bridge_slave_0 entered promiscuous mode [ 40.023160] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.029497] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.036634] device bridge_slave_1 entered promiscuous mode [ 40.043796] chnl_net:caif_netlink_parms(): no params data found [ 40.074845] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.085943] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.119924] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.127586] team0: Port device team_slave_0 added [ 40.138956] IPVS: ftp: loaded support on port[0] = 21 [ 40.140677] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.153777] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.160654] device bridge_slave_0 entered promiscuous mode [ 40.167646] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.174467] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.181756] device bridge_slave_1 entered promiscuous mode [ 40.187900] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.195115] team0: Port device team_slave_1 added [ 40.208534] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 40.227992] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 40.236183] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.262455] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.272978] device hsr_slave_0 entered promiscuous mode [ 40.278775] device hsr_slave_1 entered promiscuous mode [ 40.310625] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 40.339811] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 40.352186] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.359196] team0: Port device team_slave_0 added [ 40.369150] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.378067] IPVS: ftp: loaded support on port[0] = 21 [ 40.382136] team0: Port device team_slave_1 added [ 40.393371] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 40.408579] chnl_net:caif_netlink_parms(): no params data found [ 40.418438] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 40.432132] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.438693] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.445647] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.452060] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.515694] device hsr_slave_0 entered promiscuous mode [ 40.521860] device hsr_slave_1 entered promiscuous mode [ 40.527896] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 40.538045] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 40.590538] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.597924] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.605007] device bridge_slave_0 entered promiscuous mode [ 40.614086] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.620419] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.627733] device bridge_slave_1 entered promiscuous mode [ 40.643627] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.649983] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.656613] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.663006] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.671039] chnl_net:caif_netlink_parms(): no params data found [ 40.684630] IPVS: ftp: loaded support on port[0] = 21 [ 40.689308] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.718291] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.737741] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.745524] team0: Port device team_slave_0 added [ 40.810455] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.819618] team0: Port device team_slave_1 added [ 40.825978] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 40.842549] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 40.854406] chnl_net:caif_netlink_parms(): no params data found [ 40.889492] device hsr_slave_0 entered promiscuous mode [ 40.895354] device hsr_slave_1 entered promiscuous mode [ 40.918641] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.925812] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.933253] device bridge_slave_0 entered promiscuous mode [ 40.942384] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 40.949658] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.957282] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.964907] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.971874] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.981966] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.988302] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.995217] device bridge_slave_1 entered promiscuous mode [ 41.009286] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.019986] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 41.051197] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 41.058589] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 41.078710] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.087627] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 41.095587] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.104380] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 41.112587] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 41.118654] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.127941] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.134736] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.141883] device bridge_slave_0 entered promiscuous mode [ 41.148842] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.163260] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 41.174973] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.181418] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.187789] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.195141] device bridge_slave_1 entered promiscuous mode [ 41.214115] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.221865] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.229316] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.235701] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.244019] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 41.253754] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 41.278985] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.286969] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.294673] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.301056] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.309713] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 41.318676] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 41.326183] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.337473] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.345566] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 41.353000] team0: Port device team_slave_0 added [ 41.359977] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 41.367415] team0: Port device team_slave_1 added [ 41.373153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 41.381543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 41.388301] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.396991] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 41.403532] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.416575] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.474504] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.482136] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.490162] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 41.504268] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 41.511887] team0: Port device team_slave_0 added [ 41.517509] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 41.526119] team0: Port device team_slave_1 added [ 41.535533] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.547331] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 41.557189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 41.565123] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.573510] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.581227] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.587542] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.596024] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 41.604464] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 41.614518] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.627662] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 41.637716] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 41.645421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 41.653569] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.661108] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.668705] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.676441] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.682890] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.689712] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 41.697956] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 41.706459] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 41.714866] chnl_net:caif_netlink_parms(): no params data found [ 41.736144] device hsr_slave_0 entered promiscuous mode [ 41.741976] device hsr_slave_1 entered promiscuous mode [ 41.747909] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 41.755918] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 41.765783] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 41.772974] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.779681] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 41.787846] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.809187] device hsr_slave_0 entered promiscuous mode [ 41.814799] device hsr_slave_1 entered promiscuous mode [ 41.821535] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 41.828481] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 41.836794] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 41.845514] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 41.851983] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.858293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 41.866719] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 41.874807] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 41.883335] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 41.891453] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 41.908694] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 41.917126] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 41.927230] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 41.934446] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 41.943579] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.951615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 41.959011] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 41.966856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.975040] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.983336] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.990937] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.997847] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.004835] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 42.023479] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 42.035866] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.042916] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.049744] device bridge_slave_0 entered promiscuous mode [ 42.057169] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 42.069442] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.076061] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 42.083964] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.091815] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.098139] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.105032] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 42.113314] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.123026] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 42.132229] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.138574] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.145038] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.154902] device bridge_slave_1 entered promiscuous mode [ 42.167234] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 42.180873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 42.188467] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 42.198465] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.208118] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 42.222906] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.237392] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 42.246996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 42.254941] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 42.263111] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.272559] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 42.283624] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.292681] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 42.298664] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.307590] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 42.315291] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 42.322972] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.331161] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 42.353907] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 42.361890] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 42.369446] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.378889] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 42.391793] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 42.398851] team0: Port device team_slave_0 added [ 42.405944] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 42.419900] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 42.427333] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 42.434732] team0: Port device team_slave_1 added [ 42.439918] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.448631] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 42.456595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.464241] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 42.472131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.482356] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.495777] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.506105] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.517633] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.528268] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.550034] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 42.564996] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 42.573217] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.581884] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 42.597249] device hsr_slave_0 entered promiscuous mode [ 42.603761] device hsr_slave_1 entered promiscuous mode [ 42.609669] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.618181] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.629970] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 42.641743] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 42.656702] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 42.665057] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.672762] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 42.679735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.701048] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.709973] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 42.724353] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.740985] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 42.747093] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.766398] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 42.781455] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 147.785863] INFO: rcu_sched self-detected stall on CPU [ 147.791202] 0-...: (10499 ticks this GP) idle=212/140000000000001/0 softirq=8057/8059 fqs=1 [ 147.799849] (t=10501 jiffies g=294 c=293 q=5) [ 147.804511] rcu_sched kthread starved for 10499 jiffies! g294 c293 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 147.805860] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 147.814726] rcu_sched R [ 147.814730] [ 147.820507] running task 29832 9 2 0x80000000 [ 147.823621] (detected by 1, t=10502 jiffies, g=972, c=971, q=539) [ 147.825308] Call Trace: [ 147.830989] All QSes seen, last rcu_preempt kthread activity 10500 (4294952081-4294941581), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 147.830993] syz-executor.5 R [ 147.837221] __schedule+0x780/0x1d20 [ 147.839765] running task 27000 7019 6127 0x00000000 [ 147.851986] ? pci_mmcfg_check_reserved+0x120/0x120 [ 147.855063] Call Trace: [ 147.858751] ? __lock_is_held+0xb5/0x140 [ 147.864519] [ 147.869530] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 147.872088] sched_show_task.cold.89+0x2e1/0x342 [ 147.876132] schedule+0x7f/0x1b0 [ 147.878258] rcu_check_callbacks.cold.77+0xc96/0xcfa [ 147.883331] schedule_timeout+0x40c/0xcc0 [ 147.888069] update_process_times+0x2a/0x60 [ 147.891414] ? usleep_range+0x120/0x120 [ 147.896501] tick_sched_handle+0x7b/0x140 [ 147.900627] ? prepare_to_swait+0xe5/0x130 [ 147.904940] tick_sched_timer+0x34/0xf0 [ 147.908890] ? call_timer_fn+0x570/0x570 [ 147.913104] ? tick_sched_do_timer+0xc0/0xc0 [ 147.913110] __hrtimer_run_queues+0x297/0xaf0 [ 147.917324] rcu_gp_kthread+0xbbf/0x1e00 [ 147.921278] ? lock_downgrade+0x7f0/0x7f0 [ 147.925322] ? force_qs_rnp+0x4d0/0x4d0 [ 147.929698] ? hrtimer_start_range_ns+0x1070/0x1070 [ 147.934180] kthread+0x338/0x400 [ 147.938225] ? ktime_get_update_offsets_now+0x141/0x370 [ 147.942350] ? force_qs_rnp+0x4d0/0x4d0 [ 147.946313] hrtimer_interrupt+0x1ae/0x600 [ 147.951298] ? kthread_create_on_node+0xa0/0xa0 [ 147.954645] ? __lock_is_held+0xb5/0x140 [ 147.959982] ret_from_fork+0x24/0x30 [ 147.964886] smp_apic_timer_interrupt+0x11f/0x5d0 [ 147.969242] NMI backtrace for cpu 0 [ 147.973740] apic_timer_interrupt+0x9a/0xa0 [ 147.973744] [ 147.973751] RIP: 0010:preempt_count_add+0x6b/0x1a0 [ 147.973754] RSP: 0018:ffff888095767438 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 [ 147.973761] RAX: dffffc0000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 147.973765] RDX: 1ffffffff126fed8 RSI: ffffffff86bcf1e0 RDI: 0000000000000001 [ 147.973768] RBP: ffff888095767448 R08: 000000000000001c R09: ffffea0001e68b40 [ 147.973771] R10: 0000000000000001 R11: dffffc0000000000 R12: 0000000000000001 [ 147.973775] R13: ffff88808d719440 R14: ffff88808d719230 R15: ffff8880b2d782c0 [ 147.973791] rcu_lockdep_current_cpu_online+0x37/0x140 [ 147.973800] rcu_read_lock_sched_held+0x96/0x120 [ 147.973806] ext4_da_write_end+0x675/0xa20 [ 147.977938] CPU: 0 PID: 7012 Comm: syz-executor.3 Not tainted 4.14.209-syzkaller #0 [ 147.981623] ? iov_iter_copy_from_user_atomic+0x202/0x900 [ 147.986438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 147.990044] generic_perform_write+0x318/0x450 [ 147.994328] Call Trace: [ 147.996546] ? page_endio+0x430/0x430 [ 148.001443] [ 148.009135] ? file_update_time+0xde/0x360 [ 148.016381] dump_stack+0xf7/0x13b [ 148.023626] ? current_time+0xa0/0xa0 [ 148.030883] nmi_cpu_backtrace.cold.4+0x3e/0x76 [ 148.038128] ? lock_acquire+0x173/0x400 [ 148.045379] ? irq_force_complete_move.cold.16+0x64/0x64 [ 148.050627] ? ext4_file_write_iter+0x1db/0xe40 [ 148.055353] nmi_trigger_cpumask_backtrace+0xe6/0x11a [ 148.059562] __generic_file_write_iter+0x201/0x580 [ 148.067364] arch_trigger_cpumask_backtrace+0x14/0x20 [ 148.072875] ext4_file_write_iter+0x27a/0xe40 [ 148.082202] rcu_dump_cpu_stacks+0x172/0x1bf [ 148.086753] ? iter_file_splice_write+0x126/0xc20 [ 148.089309] ? wake_up_process+0x10/0x20 [ 148.093075] ? direct_splice_actor+0x104/0x1c0 [ 148.093080] ? splice_direct_to_actor+0x27c/0x750 [ 148.095206] rcu_check_callbacks.cold.77+0x415/0xcfa [ 148.099410] ? ext4_file_mmap+0x260/0x260 [ 148.102940] update_process_times+0x2a/0x60 [ 148.106706] ? trace_hardirqs_on+0x10/0x10 [ 148.111359] tick_sched_handle+0x7b/0x140 [ 148.115300] ? touch_atime+0xc1/0x230 [ 148.115306] ? trace_hardirqs_off+0x10/0x10 [ 148.120760] tick_sched_timer+0x34/0xf0 [ 148.125424] ? trace_hardirqs_off+0x10/0x10 [ 148.130586] ? tick_sched_do_timer+0xc0/0xc0 [ 148.135490] do_iter_readv_writev+0x460/0x900 [ 148.140680] __hrtimer_run_queues+0x297/0xaf0 [ 148.145161] ? trace_hardirqs_off+0x10/0x10 [ 148.149542] ? lock_downgrade+0x7f0/0x7f0 [ 148.154357] ? vfs_dedupe_file_range+0x800/0x800 [ 148.158390] ? hrtimer_start_range_ns+0x1070/0x1070 [ 148.162944] ? rw_verify_area+0xb8/0x2b0 [ 148.167760] ? ktime_get_update_offsets_now+0x141/0x370 [ 148.172849] do_iter_write+0x12b/0x520 [ 148.176970] hrtimer_interrupt+0x1ae/0x600 [ 148.181261] ? rcu_read_lock_sched_held+0x108/0x120 [ 148.185465] ? __lock_is_held+0xb5/0x140 [ 148.189588] ? __kmalloc+0x36d/0x7b0 [ 148.193367] smp_apic_timer_interrupt+0x11f/0x5d0 [ 148.197656] vfs_iter_write+0x5b/0xb0 [ 148.201600] apic_timer_interrupt+0x9a/0xa0 [ 148.205895] iter_file_splice_write+0x540/0xc20 [ 148.210273] [ 148.214748] ? default_file_splice_read+0x820/0x820 [ 148.219210] RIP: 0010:memcmp+0x91/0x160 [ 148.223501] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 148.223514] ? rw_verify_area+0xb8/0x2b0 [ 148.227621] RSP: 0018:ffff8880b45175e0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10 [ 148.232354] direct_splice_actor+0x104/0x1c0 [ 148.237340] RAX: 0000000000000000 RBX: ffff8880b45176b2 RCX: 0000000000000002 [ 148.241375] splice_direct_to_actor+0x27c/0x750 [ 148.246730] RDX: ffff8880b45176f0 RSI: ffff888094048872 RDI: 0000000000000001 [ 148.246734] RBP: ffff8880b4517608 R08: ffff8880b4517688 R09: 00000000ea68f5ef [ 148.250597] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 148.258186] R10: 0000000000000002 R11: 000000001fd98007 R12: dffffc0000000000 [ 148.263196] ? pipe_to_sendpage+0x420/0x420 [ 148.267237] R13: 0000000000000068 R14: ffff888094048830 R15: 0000000000004171 [ 148.271010] ? do_splice_to+0x120/0x120 [ 148.275833] depot_save_stack+0x122/0x43a [ 148.279598] ? rw_verify_area+0xb8/0x2b0 [ 148.283905] save_stack+0xa9/0xd0 [ 148.288544] do_splice_direct+0x144/0x250 [ 148.290767] ? save_stack_trace+0x16/0x20 [ 148.295767] ? splice_direct_to_actor+0x750/0x750 [ 148.299739] ? save_stack+0x43/0xd0 [ 148.304662] ? rcu_read_lock_sched_held+0x108/0x120 [ 148.308695] ? kasan_kmalloc+0xc7/0xe0 [ 148.316384] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 148.320763] ? kasan_slab_alloc+0x12/0x20 [ 148.328012] do_sendfile+0x463/0xd00 [ 148.332653] ? __kmalloc+0x144/0x7b0 [ 148.339913] ? do_compat_pwritev64+0x180/0x180 [ 148.347151] ? iter_file_splice_write+0x126/0xc20 [ 148.347156] ? direct_splice_actor+0x104/0x1c0 [ 148.352073] ? kasan_check_write+0x14/0x20 [ 148.359314] ? splice_direct_to_actor+0x27c/0x750 [ 148.363609] SyS_sendfile64+0x97/0x110 [ 148.371115] ? do_splice_direct+0x144/0x250 [ 148.375075] ? SyS_sendfile+0x120/0x120 [ 148.379208] ? do_sendfile+0x463/0xd00 [ 148.379212] ? SyS_sendfile64+0x97/0x110 [ 148.383259] ? do_syscall_64+0x4c/0x5b0 [ 148.386684] ? do_syscall_64+0x1c7/0x5b0 [ 148.390807] ? SyS_sendfile+0x120/0x120 [ 148.394940] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 148.399752] do_syscall_64+0x1c7/0x5b0 [ 148.403358] ? trace_hardirqs_on+0x10/0x10 [ 148.408343] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 148.412201] ? touch_atime+0xc1/0x230 [ 148.412207] ? trace_hardirqs_off+0x10/0x10 [ 148.416948] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 148.421067] ? trace_hardirqs_off+0x10/0x10 [ 148.424772] RIP: 0033:0x459599 [ 148.428462] ? __lock_is_held+0xb5/0x140 [ 148.433008] RSP: 002b:00007f9b2d79cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 148.438096] ? kasan_unpoison_shadow+0x35/0x50 [ 148.442655] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459599 [ 148.446869] kasan_kmalloc+0xc7/0xe0 [ 148.451680] RDX: 0000000020000000 RSI: 0000000000000003 RDI: 0000000000000003 [ 148.455543] kasan_slab_alloc+0x12/0x20 [ 148.459833] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 148.459836] R10: 00008080fffffffe R11: 0000000000000246 R12: 00007f9b2d79d6d4 [ 148.463795] __kmalloc+0x144/0x7b0 [ 148.467654] R13: 00000000004c6b70 R14: 00000000004dbde8 R15: 00000000ffffffff [ 148.471691] ? iter_file_splice_write+0x126/0xc20 [ 148.475652] rcu_preempt kthread starved for 10500 jiffies! g972 c971 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 148.479695] iter_file_splice_write+0x126/0xc20 [ 148.483672] rcu_preempt R [ 148.489012] ? generic_file_splice_read+0x43f/0x6b0 [ 148.492950] running task 29720 8 2 0x80000000 [ 148.497164] ? default_file_splice_read+0x820/0x820 [ 148.501986] Call Trace: [ 148.505762] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 148.510066] __schedule+0x780/0x1d20 [ 148.515233] ? rw_verify_area+0xb8/0x2b0 [ 148.519578] ? pci_mmcfg_check_reserved+0x120/0x120 [ 148.522743] direct_splice_actor+0x104/0x1c0 [ 148.526773] ? __lock_is_held+0xb5/0x140 [ 148.526780] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 148.534471] splice_direct_to_actor+0x27c/0x750 [ 148.539027] schedule+0x7f/0x1b0 [ 148.546272] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 148.549961] schedule_timeout+0x40c/0xcc0 [ 148.557219] ? pipe_to_sendpage+0x420/0x420 [ 148.561178] ? usleep_range+0x120/0x120 [ 148.568423] ? do_splice_to+0x120/0x120 [ 148.575676] ? prepare_to_swait+0xe5/0x130 [ 148.579189] ? rw_verify_area+0xb8/0x2b0 [ 148.586434] ? call_timer_fn+0x570/0x570 [ 148.591250] do_splice_direct+0x144/0x250 [ 148.601628] rcu_gp_kthread+0xbbf/0x1e00 [ 148.606266] ? splice_direct_to_actor+0x750/0x750 [ 148.609351] ? force_qs_rnp+0x4d0/0x4d0 [ 148.614338] ? rcu_read_lock_sched_held+0x108/0x120 [ 148.620026] kthread+0x338/0x400 [ 148.625008] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 148.627666] ? force_qs_rnp+0x4d0/0x4d0 [ 148.632571] do_sendfile+0x463/0xd00 [ 148.636261] ? kthread_create_on_node+0xa0/0xa0 [ 148.636269] ret_from_fork+0x24/0x30 [ 148.640323] ? do_compat_pwritev64+0x180/0x180 [ 148.750793] ? kasan_check_write+0x14/0x20 [ 148.755001] SyS_sendfile64+0x97/0x110 [ 148.758860] ? SyS_sendfile+0x120/0x120 [ 148.762805] ? do_syscall_64+0x4c/0x5b0 [ 148.766749] ? SyS_sendfile+0x120/0x120 [ 148.770704] do_syscall_64+0x1c7/0x5b0 [ 148.774561] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 148.779389] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 148.784549] RIP: 0033:0x459599 [ 148.787710] RSP: 002b:00007f9717c0ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 148.795389] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459599 [ 148.802642] RDX: 0000000020000000 RSI: 0000000000000003 RDI: 0000000000000003 [ 148.809883] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 148.817133] R10: 00008080fffffffe R11: 0000000000000246 R12: 00007f9717c0b6d4 [ 148.824374] R13: 00000000004c6b70 R14: 00000000004dbde8 R15: 00000000ffffffff