Warning: Permanently added '10.128.0.176' (ECDSA) to the list of known hosts. 2019/12/03 04:38:10 fuzzer started 2019/12/03 04:38:12 dialing manager at 10.128.0.26:38907 2019/12/03 04:38:12 syscalls: 2697 2019/12/03 04:38:12 code coverage: enabled 2019/12/03 04:38:12 comparison tracing: enabled 2019/12/03 04:38:12 extra coverage: extra coverage is not supported by the kernel 2019/12/03 04:38:12 setuid sandbox: enabled 2019/12/03 04:38:12 namespace sandbox: enabled 2019/12/03 04:38:12 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 04:38:12 fault injection: enabled 2019/12/03 04:38:12 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 04:38:12 net packet injection: enabled 2019/12/03 04:38:12 net device setup: enabled 2019/12/03 04:38:12 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 04:38:12 devlink PCI setup: PCI device 0000:00:10.0 is not available 04:38:13 executing program 0: unshare(0x2040400) r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000200)='/dev/uinput\x00', 0x0, 0x0) ioctl$UI_ABS_SETUP(r0, 0x40045569, &(0x7f0000000000)) 04:38:13 executing program 1: bpf$MAP_CREATE(0x0, &(0x7f0000000040)={0x20000000005, 0x0, 0x0, 0x0, 0x55, 0xffffffffffffffff, 0x0, [0xa003000000000000]}, 0x3c) syzkaller login: [ 57.627295][ T8253] IPVS: ftp: loaded support on port[0] = 21 [ 57.804049][ T8255] IPVS: ftp: loaded support on port[0] = 21 [ 57.819400][ T8253] chnl_net:caif_netlink_parms(): no params data found 04:38:13 executing program 2: unshare(0x2000400) r0 = openat$vnet(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vhost-net\x00', 0x2, 0x0) r1 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000200)='/dev/sequencer2\x00', 0x0, 0x0) tee(r1, r0, 0x100, 0x0) [ 57.914589][ T8253] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.922879][ T8253] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.941309][ T8253] device bridge_slave_0 entered promiscuous mode [ 57.976162][ T8253] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.984785][ T8253] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.003593][ T8253] device bridge_slave_1 entered promiscuous mode [ 58.047259][ T8259] IPVS: ftp: loaded support on port[0] = 21 [ 58.064795][ T8253] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.099706][ T8253] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.115306][ T8255] chnl_net:caif_netlink_parms(): no params data found [ 58.160188][ T8253] team0: Port device team_slave_0 added 04:38:14 executing program 3: pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = syz_open_procfs(0x0, &(0x7f0000dec000)='smaps\x00') mmap(&(0x7f0000000000/0xe7e000)=nil, 0xe7e000, 0x0, 0x31, 0xffffffffffffffff, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r2, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) madvise(&(0x7f000092d000/0x400000)=nil, 0x400000, 0xf) sendfile(r0, r1, 0x0, 0x320f) [ 58.204428][ T8253] team0: Port device team_slave_1 added [ 58.226784][ T8255] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.234702][ T8255] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.244596][ T8255] device bridge_slave_0 entered promiscuous mode [ 58.272981][ T8255] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.280081][ T8255] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.290076][ T8255] device bridge_slave_1 entered promiscuous mode [ 58.394797][ T8253] device hsr_slave_0 entered promiscuous mode 04:38:14 executing program 4: r0 = getpid() sched_setscheduler(r0, 0x5, &(0x7f0000000380)) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) bpf$BPF_GET_PROG_INFO(0xf, 0x0, 0x0) pipe(0x0) ioctl$KVM_CREATE_PIT2(0xffffffffffffffff, 0x4040ae77, &(0x7f0000000000)) r1 = open(&(0x7f00000001c0)='./file0\x00', 0x80040, 0x0) fcntl$setlease(r1, 0x400, 0x1) fcntl$setlease(r1, 0x400, 0x0) [ 58.444393][ T8253] device hsr_slave_1 entered promiscuous mode [ 58.553157][ T8263] IPVS: ftp: loaded support on port[0] = 21 [ 58.576641][ T8255] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.603766][ T8255] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 04:38:14 executing program 5: r0 = openat$dlm_control(0xffffffffffffff9c, &(0x7f0000000100)='/dev/dlm-control\x00', 0x1, 0x0) write$9p(r0, &(0x7f0000000000)="0600000000000000c9b90003050200002a1ff7adf576f3790f68bc2c197cbf8d63735a09ab8383afd2de1a5587fe067fde18fa64249e1dabdd9514480a16f3733d18f833b3aacfcf04f7b0bdd78687423a6bff51b9f9218a249e3d00"/104, 0xb3) [ 58.666868][ T8259] chnl_net:caif_netlink_parms(): no params data found [ 58.685887][ T8253] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.764023][ T8255] team0: Port device team_slave_0 added [ 58.769939][ T8253] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.843751][ T8255] team0: Port device team_slave_1 added [ 58.860665][ T8253] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.895052][ T8253] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.959201][ T8265] IPVS: ftp: loaded support on port[0] = 21 [ 58.962155][ T8253] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.972299][ T8253] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.980083][ T8253] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.987209][ T8253] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.998869][ T2707] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.007167][ T2707] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.018508][ T8259] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.026018][ T8259] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.033811][ T8259] device bridge_slave_0 entered promiscuous mode [ 59.041431][ T8259] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.048783][ T8259] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.056683][ T8259] device bridge_slave_1 entered promiscuous mode [ 59.133822][ T8255] device hsr_slave_0 entered promiscuous mode [ 59.182375][ T8255] device hsr_slave_1 entered promiscuous mode [ 59.222084][ T8255] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.235709][ T8259] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.236197][ T8267] IPVS: ftp: loaded support on port[0] = 21 [ 59.280183][ T8259] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.329003][ T8259] team0: Port device team_slave_0 added [ 59.338129][ T8259] team0: Port device team_slave_1 added [ 59.351768][ T8255] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.406233][ T8255] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.466409][ T8255] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.535258][ T8255] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.684392][ T8259] device hsr_slave_0 entered promiscuous mode [ 59.732437][ T8259] device hsr_slave_1 entered promiscuous mode [ 59.772036][ T8259] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.802794][ T8263] chnl_net:caif_netlink_parms(): no params data found [ 59.937208][ T8259] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.973402][ T8263] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.980499][ T8263] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.988847][ T8263] device bridge_slave_0 entered promiscuous mode [ 59.999354][ T8263] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.006687][ T8263] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.014482][ T8263] device bridge_slave_1 entered promiscuous mode [ 60.027564][ T8253] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.037396][ T8259] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.084276][ T8259] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.126787][ T8259] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.221475][ T8265] chnl_net:caif_netlink_parms(): no params data found [ 60.246293][ T8263] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.256557][ T8267] chnl_net:caif_netlink_parms(): no params data found [ 60.270822][ T8253] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.289659][ T8263] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.306416][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.316202][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.324349][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.333084][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.341327][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.348425][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.376861][ T8265] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.386925][ T8265] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.395102][ T8265] device bridge_slave_0 entered promiscuous mode [ 60.405567][ T8265] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.414751][ T8265] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.422553][ T8265] device bridge_slave_1 entered promiscuous mode [ 60.445406][ T8263] team0: Port device team_slave_0 added [ 60.456003][ T8267] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.463484][ T8267] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.471213][ T8267] device bridge_slave_0 entered promiscuous mode [ 60.479963][ T8267] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.487743][ T8267] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.495738][ T8267] device bridge_slave_1 entered promiscuous mode [ 60.517180][ T8263] team0: Port device team_slave_1 added [ 60.525785][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.535062][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.543603][ T2707] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.550735][ T2707] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.570114][ T8255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.584521][ T8265] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.635671][ T8263] device hsr_slave_0 entered promiscuous mode [ 60.702421][ T8263] device hsr_slave_1 entered promiscuous mode [ 60.731980][ T8263] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.740875][ T8267] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.752126][ T8267] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.763656][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.773609][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.782460][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.790927][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.800866][ T8265] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.831410][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.848169][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.857116][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.866096][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.874667][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.887930][ T8255] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.904190][ T8265] team0: Port device team_slave_0 added [ 60.916600][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.927289][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.936056][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.945090][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.969162][ T8259] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.978717][ T8253] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.989126][ T8267] team0: Port device team_slave_0 added [ 60.997965][ T8265] team0: Port device team_slave_1 added [ 61.025543][ T8267] team0: Port device team_slave_1 added [ 61.047876][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.057190][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.065914][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.073051][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.080722][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.088872][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.097018][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.105630][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.114110][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.121159][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.128804][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.137311][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.146045][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.154661][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.163259][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.171651][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.180084][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.188312][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.196769][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.204639][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.224628][ T8259] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.243348][ T8255] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.258940][ T8255] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.268846][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.279043][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.288060][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.295178][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.303277][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.311701][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.320237][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.364876][ T8267] device hsr_slave_0 entered promiscuous mode [ 61.422399][ T8267] device hsr_slave_1 entered promiscuous mode [ 61.482503][ T8267] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.565252][ T8265] device hsr_slave_0 entered promiscuous mode [ 61.582754][ T8265] device hsr_slave_1 entered promiscuous mode [ 61.622266][ T8265] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.636820][ T8253] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.645859][ T8263] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 61.673789][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.685093][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.692676][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.701218][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.710017][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.717100][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.725316][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.734978][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.743821][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.752745][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.761028][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.769778][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.784380][ T8259] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.796100][ T8259] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.815283][ T8263] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.874461][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.882982][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.891417][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.900008][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.908539][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.917813][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.940556][ T8263] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.984302][ T8263] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 167.031842][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 167.038848][ C1] (detected by 1, t=10502 jiffies, g=6697, q=101) [ 167.045340][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953803-4294943300), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 167.058678][ C1] blkid R running task 28312 8274 8224 0x8000400a [ 167.066573][ C1] Call Trace: [ 167.069844][ C1] [ 167.072692][ C1] sched_show_task+0x40f/0x560 [ 167.077460][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 167.082737][ C1] update_process_times+0x12d/0x180 [ 167.087919][ C1] tick_sched_timer+0x263/0x420 [ 167.092756][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.098375][ C1] __hrtimer_run_queues+0x403/0x840 [ 167.103583][ C1] hrtimer_interrupt+0x38c/0xda0 [ 167.108539][ C1] ? debug_smp_processor_id+0x9/0x20 [ 167.113824][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 167.119355][ C1] apic_timer_interrupt+0xf/0x20 [ 167.124286][ C1] [ 167.127209][ C1] RIP: 0010:free_thread_stack+0x18b/0x590 [ 167.132957][ 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 [ 167.152550][ C1] RSP: 0018:ffffc900025679f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 167.160948][ C1] RAX: 1ffff11011e80561 RBX: ffff88808f402b08 RCX: ffff88808d39a680 [ 167.168907][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002349580 [ 167.176875][ C1] RBP: ffffc90002567a28 R08: dffffc0000000000 R09: fffffbfff1287025 [ 167.184832][ C1] R10: fffffbfff1287025 R11: 0000000000000000 R12: ffff88808f402ba0 [ 167.192807][ C1] R13: dffffc0000000000 R14: 1ffff11011e80574 R15: ffff8880a49c7428 [ 167.200797][ C1] put_task_stack+0xa3/0x130 [ 167.205375][ C1] finish_task_switch+0x3f1/0x550 [ 167.210388][ C1] __schedule+0x9a8/0xcc0 [ 167.214714][ C1] ? ___preempt_schedule+0x16/0x18 [ 167.219812][ C1] preempt_schedule+0xdb/0x120 [ 167.224559][ C1] ___preempt_schedule+0x16/0x18 [ 167.229488][ C1] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 167.235108][ C1] __wake_up_sync_key+0xe2/0x150 [ 167.240047][ C1] pipe_release+0x17b/0x330 [ 167.244530][ C1] ? fifo_open+0xc70/0xc70 [ 167.248931][ C1] __fput+0x2e4/0x740 [ 167.252908][ C1] ____fput+0x15/0x20 [ 167.256874][ C1] task_work_run+0x17e/0x1b0 [ 167.261452][ C1] do_exit+0x5c4/0x2020 [ 167.265595][ C1] ? check_preemption_disabled+0xb4/0x260 [ 167.271305][ C1] do_group_exit+0x15c/0x2b0 [ 167.275888][ C1] __do_sys_exit_group+0x17/0x20 [ 167.280810][ C1] __se_sys_exit_group+0x14/0x20 [ 167.285735][ C1] __x64_sys_exit_group+0x3b/0x40 [ 167.290741][ C1] do_syscall_64+0xf7/0x1c0 [ 167.295235][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 167.301129][ C1] RIP: 0033:0x7fc831b661e8 [ 167.305975][ C1] Code: Bad RIP value. [ 167.310025][ C1] RSP: 002b:00007ffc148025e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 167.318420][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc831b661e8 [ 167.326387][ C1] RDX: 0000000000000002 RSI: 000000000000003c RDI: 0000000000000002 [ 167.334365][ C1] RBP: 00007fc831e3b840 R08: 00000000000000e7 R09: ffffffffffffffa8 [ 167.345017][ C1] R10: 00007fc831e41740 R11: 0000000000000246 R12: 00007fc831e3b840 [ 167.353324][ C1] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 167.361435][ C1] rcu: rcu_preempt kthread starved for 10534 jiffies! g6697 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 167.373461][ C1] rcu: RCU grace-period kthread stack dump: [ 167.379344][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.387240][ C1] Call Trace: [ 167.390619][ C1] __schedule+0x9a0/0xcc0 [ 167.394946][ C1] schedule+0x181/0x210 [ 167.399093][ C1] schedule_timeout+0x14f/0x240 [ 167.403959][ C1] ? run_local_timers+0x120/0x120 [ 167.409001][ C1] rcu_gp_kthread+0xed8/0x1770 [ 167.413766][ C1] kthread+0x332/0x350 [ 167.417820][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 167.422925][ C1] ? kthread_blkcg+0xe0/0xe0 [ 167.427507][ C1] ret_from_fork+0x24/0x30