Warning: Permanently added '10.128.0.158' (ECDSA) to the list of known hosts. 2019/12/04 12:21:21 fuzzer started 2019/12/04 12:21:23 dialing manager at 10.128.0.26:36481 2019/12/04 12:21:23 syscalls: 2691 2019/12/04 12:21:23 code coverage: enabled 2019/12/04 12:21:23 comparison tracing: enabled 2019/12/04 12:21:23 extra coverage: extra coverage is not supported by the kernel 2019/12/04 12:21:23 setuid sandbox: enabled 2019/12/04 12:21:23 namespace sandbox: enabled 2019/12/04 12:21:23 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 12:21:23 fault injection: enabled 2019/12/04 12:21:23 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 12:21:23 net packet injection: enabled 2019/12/04 12:21:23 net device setup: enabled 2019/12/04 12:21:23 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 12:21:23 devlink PCI setup: PCI device 0000:00:10.0 is not available 12:21:24 executing program 0: r0 = creat(&(0x7f0000000080)='./bus\x00', 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000300)={0x1a, 0x3, &(0x7f0000000000)=@framed, &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, r0}, 0x78) 12:21:24 executing program 1: r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000180)='/dev/uinput\x00', 0x400000000000002, 0x0) ioctl$UI_SET_EVBIT(r0, 0x40045564, 0x15) ioctl$UI_SET_ABSBIT(r0, 0x40045567, 0x2f) ioctl$UI_SET_EVBIT(r0, 0x40045564, 0x3) r1 = dup(r0) write$uinput_user_dev(r1, &(0x7f0000000980)={'syz0\x00'}, 0x45c) ioctl$UI_DEV_CREATE(r0, 0x5501) syzkaller login: [ 54.391019][ T8069] IPVS: ftp: loaded support on port[0] = 21 [ 54.459270][ T8071] IPVS: ftp: loaded support on port[0] = 21 12:21:24 executing program 2: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000100)='/dev/fuse\x00', 0x2, 0x0) mount$fuse(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000080)='fuse\x00', 0x0, &(0x7f0000000400)={{'fd', 0x3d, r0}, 0x2c, {'rootmode', 0x3d, 0x4000}, 0x2c, {'user_id'}, 0x2c, {'group_id'}}) read$FUSE(r0, &(0x7f0000000580), 0xefee) write$FUSE_INIT(r0, &(0x7f0000000240)={0x50, 0xfffffffffffffff5, 0x2, {0x7, 0x8}}, 0x50) utime(&(0x7f0000000040)='./file0\x00', 0x0) [ 54.600020][ T8071] chnl_net:caif_netlink_parms(): no params data found [ 54.626035][ T8069] chnl_net:caif_netlink_parms(): no params data found [ 54.704082][ T8071] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.711165][ T8071] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.722599][ T8071] device bridge_slave_0 entered promiscuous mode [ 54.742449][ T8075] IPVS: ftp: loaded support on port[0] = 21 [ 54.755073][ T8071] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.762201][ T8071] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.773629][ T8071] device bridge_slave_1 entered promiscuous mode [ 54.781500][ T8069] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.789920][ T8069] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.798014][ T8069] device bridge_slave_0 entered promiscuous mode [ 54.830046][ T8071] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.840962][ T8071] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.863070][ T8069] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.870343][ T8069] bridge0: port 2(bridge_slave_1) entered disabled state 12:21:25 executing program 3: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = syz_open_dev$usbfs(&(0x7f0000000000)='/dev/bus/usb/00#/00#\x00', 0x6f, 0x2) ioctl$USBDEVFS_CONTROL(r1, 0xc0185500, &(0x7f0000001040)={0x0, 0x3, 0x1, 0x0, 0x0, 0x0, 0x0}) [ 54.878593][ T8069] device bridge_slave_1 entered promiscuous mode [ 54.947063][ T8071] team0: Port device team_slave_0 added [ 54.959021][ T8069] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.974650][ T8071] team0: Port device team_slave_1 added [ 54.997133][ T8069] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 12:21:25 executing program 4: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) getsockopt$inet6_int(r1, 0x29, 0x35, &(0x7f0000b67000), &(0x7f00007d0000)=0x2fd71482) [ 55.095097][ T8071] device hsr_slave_0 entered promiscuous mode [ 55.123299][ T8071] device hsr_slave_1 entered promiscuous mode [ 55.221562][ T8069] team0: Port device team_slave_0 added [ 55.229648][ T8079] IPVS: ftp: loaded support on port[0] = 21 [ 55.261689][ T8069] team0: Port device team_slave_1 added [ 55.288660][ T8075] chnl_net:caif_netlink_parms(): no params data found [ 55.316412][ T8071] netdevsim netdevsim1 netdevsim0: renamed from eth0 12:21:25 executing program 5: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) syz_mount_image$gfs2(&(0x7f00000001c0)='gfs2\x00', &(0x7f0000000200)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000001b00)=ANY=[@ANYBLOB='localcaching,localflocks']) [ 55.448698][ T8071] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 55.497172][ T8071] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 55.594812][ T8069] device hsr_slave_0 entered promiscuous mode [ 55.643161][ T8069] device hsr_slave_1 entered promiscuous mode [ 55.712854][ T8069] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.730208][ T8071] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.803626][ T8081] IPVS: ftp: loaded support on port[0] = 21 [ 55.821627][ T8083] IPVS: ftp: loaded support on port[0] = 21 [ 55.870969][ T8075] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.878193][ T8075] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.887262][ T8075] device bridge_slave_0 entered promiscuous mode [ 55.894439][ T8069] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.925968][ T8069] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.006402][ T8069] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.074435][ T8069] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.125131][ T8075] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.132632][ T8075] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.141050][ T8075] device bridge_slave_1 entered promiscuous mode [ 56.160933][ T8075] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.192392][ T8075] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.247035][ T8079] chnl_net:caif_netlink_parms(): no params data found [ 56.267197][ T8075] team0: Port device team_slave_0 added [ 56.274430][ T8075] team0: Port device team_slave_1 added [ 56.365434][ T8075] device hsr_slave_0 entered promiscuous mode [ 56.433034][ T8075] device hsr_slave_1 entered promiscuous mode [ 56.482866][ T8075] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.513509][ T8079] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.520600][ T8079] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.528578][ T8079] device bridge_slave_0 entered promiscuous mode [ 56.538390][ T8079] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.545609][ T8079] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.553401][ T8079] device bridge_slave_1 entered promiscuous mode [ 56.571008][ T8079] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.587433][ T8079] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.601712][ T8075] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 56.676831][ T8071] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.696983][ T8075] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 56.744654][ T8075] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 56.785766][ T8075] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 56.844583][ T8079] team0: Port device team_slave_0 added [ 56.865858][ T8079] team0: Port device team_slave_1 added [ 56.938230][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.947518][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.957413][ T8071] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.005545][ T8079] device hsr_slave_0 entered promiscuous mode [ 57.043078][ T8079] device hsr_slave_1 entered promiscuous mode [ 57.082888][ T8079] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.097939][ T8083] chnl_net:caif_netlink_parms(): no params data found [ 57.117322][ T8081] chnl_net:caif_netlink_parms(): no params data found [ 57.132109][ T8069] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.158278][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.166871][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.175691][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.182957][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.191236][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 57.221714][ T8079] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 57.285945][ T8079] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 57.362230][ T8083] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.369427][ T8083] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.378012][ T8083] device bridge_slave_0 entered promiscuous mode [ 57.387590][ T8083] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.394906][ T8083] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.403759][ T8083] device bridge_slave_1 entered promiscuous mode [ 57.415728][ T8079] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 57.460063][ T8069] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.468471][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.477242][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.485648][ T3080] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.492672][ T3080] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.500739][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.508685][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.527247][ T8081] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.534978][ T8081] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.542587][ T8081] device bridge_slave_0 entered promiscuous mode [ 57.551687][ T8079] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 57.619565][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.628301][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.637461][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.647130][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.655640][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.664498][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.673153][ T8084] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.680186][ T8084] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.692267][ T8081] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.700287][ T8081] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.708886][ T8081] device bridge_slave_1 entered promiscuous mode [ 57.724703][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.733628][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 57.741342][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.750302][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.758775][ T8084] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.765856][ T8084] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.773861][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 57.782154][ T8084] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.791746][ T8083] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.802557][ T8083] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.822579][ T8071] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.834125][ T8071] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.855263][ T8075] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.867992][ T8076] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.876428][ T8076] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.885083][ T8076] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.893473][ T8076] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.901495][ T8076] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.910115][ T8076] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.918715][ T8076] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.938100][ T8081] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.959307][ T8083] team0: Port device team_slave_0 added [ 57.968072][ T8083] team0: Port device team_slave_1 added [ 57.975895][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.985439][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.995397][ T8081] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.015788][ T8081] team0: Port device team_slave_0 added [ 58.028273][ T8071] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.085725][ T8083] device hsr_slave_0 entered promiscuous mode [ 58.113360][ T8083] device hsr_slave_1 entered promiscuous mode [ 58.153050][ T8083] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.161026][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.169967][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.177727][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.195135][ T8081] team0: Port device team_slave_1 added [ 58.204602][ T8069] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 58.215463][ T8069] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.238124][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.256631][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.266490][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.275185][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.283867][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.292294][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.301003][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.308961][ T8086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 163.282714][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 163.289711][ C1] (detected by 1, t=10502 jiffies, g=6033, q=39) [ 163.296114][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953475-4294942972), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 163.309454][ C1] rsyslogd R running task 28512 7940 1 0x0000400a [ 163.317342][ C1] Call Trace: [ 163.320613][ C1] [ 163.323461][ C1] sched_show_task+0x40f/0x560 [ 163.328220][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 163.333500][ C1] update_process_times+0x12d/0x180 [ 163.338686][ C1] tick_sched_timer+0x263/0x420 [ 163.343525][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 163.349056][ C1] __hrtimer_run_queues+0x403/0x840 [ 163.354253][ C1] hrtimer_interrupt+0x38c/0xda0 [ 163.359192][ C1] ? debug_smp_processor_id+0x9/0x20 [ 163.364467][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 163.370008][ C1] apic_timer_interrupt+0xf/0x20 [ 163.374929][ C1] [ 163.377882][ C1] RIP: 0010:mod_memcg_page_state+0x168/0x190 [ 163.383849][ C1] Code: c7 28 95 0a 89 e8 a8 9a 69 00 48 83 3d c8 20 c2 07 00 74 2d e8 19 25 2e 00 4c 89 ff 57 9d 0f 1f 44 00 00 5b 41 5c 41 5e 41 5f <5d> c3 e8 01 25 2e 00 0f 0b e8 fa 24 2e 00 0f 0b e8 f3 24 2e 00 0f [ 163.403452][ C1] RSP: 0018:ffffc90001a47a50 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 163.411858][ C1] RAX: ffffffff81487433 RBX: ffff88806c7faf08 RCX: ffff888094ef4580 [ 163.419826][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001b1ff00 [ 163.427790][ C1] RBP: ffffc90001a47a50 R08: dffffc0000000000 R09: fffffbfff1287a8d [ 163.435749][ C1] R10: fffffbfff1287a8d R11: 0000000000000000 R12: ffff88806c7fafa0 [ 163.443704][ C1] R13: dffffc0000000000 R14: 1ffff1100d8ff5f4 R15: ffff8880a8237528 [ 163.451697][ C1] ? mod_memcg_page_state+0x123/0x190 [ 163.457064][ C1] free_thread_stack+0x168/0x590 [ 163.461994][ C1] put_task_stack+0xa3/0x130 [ 163.466571][ C1] finish_task_switch+0x3f1/0x550 [ 163.471585][ C1] __schedule+0x9a8/0xcc0 [ 163.475913][ C1] schedule+0x181/0x210 [ 163.480065][ C1] do_syslog+0xdc7/0x1740 [ 163.484387][ C1] ? init_wait_entry+0xe0/0xe0 [ 163.489138][ C1] kmsg_read+0x94/0xd0 [ 163.493189][ C1] ? mmap_vmcore_fault+0x10/0x10 [ 163.498114][ C1] proc_reg_read+0x1e2/0x2d0 [ 163.502696][ C1] ? proc_reg_llseek+0x2c0/0x2c0 [ 163.507626][ C1] __vfs_read+0xb8/0x730 [ 163.512036][ C1] ? security_file_permission+0x23c/0x350 [ 163.517745][ C1] ? rw_verify_area+0x1c2/0x360 [ 163.522582][ C1] vfs_read+0x1dd/0x420 [ 163.526817][ C1] ksys_read+0x117/0x220 [ 163.531057][ C1] __x64_sys_read+0x7b/0x90 [ 163.535553][ C1] do_syscall_64+0xf7/0x1c0 [ 163.540057][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 163.545940][ C1] RIP: 0033:0x7fd8bc3031fd [ 163.550346][ C1] Code: d1 20 00 00 75 10 b8 00 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 5e fa ff ff 48 89 04 24 b8 00 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 a7 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 163.569933][ C1] RSP: 002b:00007fd8b98a2e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 [ 163.578331][ C1] RAX: ffffffffffffffda RBX: 00000000009a3170 RCX: 00007fd8bc3031fd [ 163.586316][ C1] RDX: 0000000000000fff RSI: 00007fd8bb0d75a0 RDI: 0000000000000004 [ 163.594289][ C1] RBP: 0000000000000000 R08: 000000000098e260 R09: 0000000004000001 [ 163.602247][ C1] R10: 0000000000000001 R11: 0000000000000293 R12: 000000000065e420 [ 163.610221][ C1] R13: 00007fd8b98a39c0 R14: 00007fd8bc948040 R15: 0000000000000003 [ 163.618202][ C1] rcu: rcu_preempt kthread starved for 10535 jiffies! g6033 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 163.629281][ C1] rcu: RCU grace-period kthread stack dump: [ 163.635154][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 163.643039][ C1] Call Trace: [ 163.646320][ C1] __schedule+0x9a0/0xcc0 [ 163.650644][ C1] schedule+0x181/0x210 [ 163.654811][ C1] schedule_timeout+0x14f/0x240 [ 163.659675][ C1] ? run_local_timers+0x120/0x120 [ 163.664701][ C1] rcu_gp_kthread+0xed8/0x1770 [ 163.669472][ C1] kthread+0x332/0x350 [ 163.673553][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 163.678658][ C1] ? kthread_blkcg+0xe0/0xe0 [ 163.683239][ C1] ret_from_fork+0x24/0x30