[ 46.117408][ T23] audit: type=1800 audit(1575385289.411:25): pid=8082 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.142890][ T23] audit: type=1800 audit(1575385289.411:26): pid=8082 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.197648][ T23] audit: type=1800 audit(1575385289.421:27): pid=8082 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 46.229208][ T23] audit: type=1800 audit(1575385289.421:28): pid=8082 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. 2019/12/03 15:01:38 fuzzer started 2019/12/03 15:01:39 dialing manager at 10.128.0.26:45711 2019/12/03 15:01:39 syscalls: 2689 2019/12/03 15:01:39 code coverage: enabled 2019/12/03 15:01:39 comparison tracing: enabled 2019/12/03 15:01:39 extra coverage: extra coverage is not supported by the kernel 2019/12/03 15:01:39 setuid sandbox: enabled 2019/12/03 15:01:39 namespace sandbox: enabled 2019/12/03 15:01:39 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 15:01:39 fault injection: enabled 2019/12/03 15:01:39 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 15:01:39 net packet injection: enabled 2019/12/03 15:01:39 net device setup: enabled 2019/12/03 15:01:39 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 15:01:39 devlink PCI setup: PCI device 0000:00:10.0 is not available 15:01:40 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) sendmsg$kcm(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)=[{&(0x7f0000000100)="180000003500050ad25a80648c6356c10224fc0010000b40", 0x18}], 0x1}, 0x0) 15:01:40 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000003c0)=@ipv6_delroute={0x24, 0x19, 0xcca3fd92f6ab884f, 0x0, 0x0, {}, [@RTA_PRIORITY={0x8, 0x6, 0x2}]}, 0x24}}, 0x0) syzkaller login: [ 57.280667][ T8245] IPVS: ftp: loaded support on port[0] = 21 15:01:40 executing program 2: creat(&(0x7f0000000000)='./file0\x00', 0x0) mount$fuse(0x20000000, &(0x7f0000000000)='./file0\x00', 0x0, 0x17cd, 0x0) mount$fuse(0x20000000, &(0x7f00000000c0)='./file0\x00', 0x0, 0x79fd, 0x0) r0 = open(&(0x7f0000000040)='./file0\x00', 0x0, 0x0) ioctl$FUSE_DEV_IOC_CLONE(r0, 0x6609, 0x0) [ 57.456992][ T8245] chnl_net:caif_netlink_parms(): no params data found [ 57.475127][ T8248] IPVS: ftp: loaded support on port[0] = 21 [ 57.506442][ T8245] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.514399][ T8245] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.524076][ T8245] device bridge_slave_0 entered promiscuous mode [ 57.535820][ T8245] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.544555][ T8245] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.552693][ T8245] device bridge_slave_1 entered promiscuous mode [ 57.594723][ T8245] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.609089][ T8245] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.640201][ T8245] team0: Port device team_slave_0 added [ 57.649487][ T8245] team0: Port device team_slave_1 added 15:01:41 executing program 3: prctl$PR_MCE_KILL(0x23, 0x7, 0x7fffffffeffe) [ 57.766546][ T8245] device hsr_slave_0 entered promiscuous mode [ 57.804100][ T8245] device hsr_slave_1 entered promiscuous mode [ 57.870683][ T8250] IPVS: ftp: loaded support on port[0] = 21 15:01:41 executing program 4: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000380)={&(0x7f0000000240)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x30, 0x30, 0x2, [@ptr={0x0, 0x0, 0x0, 0x2, 0x2}, @restrict={0x0, 0x0, 0x0, 0xb, 0x3}, @array={0x0, 0x0, 0x0, 0x3, 0x0, {0x2, 0x2}}]}}, &(0x7f00000002c0)=""/178, 0x4a, 0xb2, 0x1}, 0x20) [ 57.951182][ T8252] IPVS: ftp: loaded support on port[0] = 21 [ 57.967921][ T8245] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.034283][ T8245] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.084521][ T8248] chnl_net:caif_netlink_parms(): no params data found [ 58.111087][ T8245] netdevsim netdevsim0 netdevsim2: renamed from eth2 15:01:41 executing program 5: socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}}, 0x0) r1 = socket$inet6(0xa, 0x8000008000080003, 0x5) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000340)={'bridge_slave_0\x00', 0x0}) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x4000, &(0x7f00000000c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="2c00000011003586000000030000000007000000", @ANYRES32=r2, @ANYBLOB="01000085000000000ce117fcad00021f00000000"], 0x2c}}, 0x0) r3 = socket(0x10, 0x80002, 0x0) sendmmsg$alg(r3, &(0x7f0000000140), 0x332, 0x0) [ 58.178943][ T8245] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.287811][ T8248] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.300629][ T8255] IPVS: ftp: loaded support on port[0] = 21 [ 58.302962][ T8248] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.323698][ T8248] device bridge_slave_0 entered promiscuous mode [ 58.350583][ T8245] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.357858][ T8245] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.365670][ T8245] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.372742][ T8245] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.420407][ T8257] IPVS: ftp: loaded support on port[0] = 21 [ 58.435789][ T8248] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.443119][ T8248] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.450772][ T8248] device bridge_slave_1 entered promiscuous mode [ 58.471174][ T8248] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.491501][ T8258] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.500649][ T8258] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.518468][ T8250] chnl_net:caif_netlink_parms(): no params data found [ 58.528105][ T8248] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.568907][ T8248] team0: Port device team_slave_0 added [ 58.590825][ T8248] team0: Port device team_slave_1 added [ 58.667910][ T8252] chnl_net:caif_netlink_parms(): no params data found [ 58.692672][ T8245] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.700217][ T8250] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.707704][ T8250] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.716202][ T8250] device bridge_slave_0 entered promiscuous mode [ 58.785968][ T8248] device hsr_slave_0 entered promiscuous mode [ 58.843289][ T8248] device hsr_slave_1 entered promiscuous mode [ 58.873010][ T8248] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.896759][ T8250] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.904298][ T8250] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.911866][ T8250] device bridge_slave_1 entered promiscuous mode [ 58.959168][ T8250] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.972785][ T8250] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.000951][ T8245] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.020920][ T8255] chnl_net:caif_netlink_parms(): no params data found [ 59.039917][ T3688] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.048568][ T3688] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.063018][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.071488][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.081050][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.088159][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.096000][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.104755][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.113262][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.120303][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.143183][ T8257] chnl_net:caif_netlink_parms(): no params data found [ 59.153680][ T8250] team0: Port device team_slave_0 added [ 59.163591][ T8250] team0: Port device team_slave_1 added [ 59.173783][ T8252] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.180964][ T8252] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.189846][ T8252] device bridge_slave_0 entered promiscuous mode [ 59.202182][ T8252] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.211799][ T8252] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.220328][ T8252] device bridge_slave_1 entered promiscuous mode [ 59.245038][ T8248] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.277561][ T8248] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.342135][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.351257][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.359944][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.368962][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.377767][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.386565][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.396623][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.455676][ T8250] device hsr_slave_0 entered promiscuous mode [ 59.504956][ T8250] device hsr_slave_1 entered promiscuous mode [ 59.553142][ T8250] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.567443][ T8248] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.629215][ T8248] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.701707][ T8245] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.713659][ T8245] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.731725][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.743041][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.751815][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.760572][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.769241][ T2722] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.796055][ T8252] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.811223][ T8252] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.830420][ T8257] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.837939][ T8257] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.848765][ T8257] device bridge_slave_0 entered promiscuous mode [ 59.861584][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.869148][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.877498][ T8255] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.884876][ T8255] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.892680][ T8255] device bridge_slave_0 entered promiscuous mode [ 59.928466][ T8257] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.937727][ T8257] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.946143][ T8257] device bridge_slave_1 entered promiscuous mode [ 59.961372][ T8255] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.968775][ T8255] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.977123][ T8255] device bridge_slave_1 entered promiscuous mode [ 59.985946][ T8252] team0: Port device team_slave_0 added [ 60.001443][ T8245] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.008734][ T8250] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.056106][ T8257] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.071298][ T8250] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.115685][ T8252] team0: Port device team_slave_1 added [ 60.121483][ T8250] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.177061][ T8255] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.192409][ T8255] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.203724][ T8257] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.229938][ T8250] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.295445][ T8257] team0: Port device team_slave_0 added [ 60.390114][ T8252] device hsr_slave_0 entered promiscuous mode [ 60.444202][ T8252] device hsr_slave_1 entered promiscuous mode [ 60.503048][ T8252] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.512524][ T8257] team0: Port device team_slave_1 added [ 60.530373][ T8255] team0: Port device team_slave_0 added [ 60.550821][ T8248] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.588818][ T8257] device hsr_slave_0 entered promiscuous mode [ 165.602824][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 165.609984][ C0] (detected by 0, t=10502 jiffies, g=6053, q=26) [ 165.617108][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953676-4294943173), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 165.630576][ C0] syz-executor.5 R running task 24952 8257 8256 0x0000400a [ 165.638568][ C0] Call Trace: [ 165.641853][ C0] [ 165.644717][ C0] sched_show_task+0x40f/0x560 [ 165.649624][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 165.654918][ C0] update_process_times+0x12d/0x180 [ 165.660196][ C0] tick_sched_timer+0x263/0x420 [ 165.665165][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.671752][ C0] __hrtimer_run_queues+0x403/0x840 [ 165.676981][ C0] hrtimer_interrupt+0x38c/0xda0 [ 165.682072][ C0] ? debug_smp_processor_id+0x9/0x20 [ 165.689009][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 165.694576][ C0] apic_timer_interrupt+0xf/0x20 [ 165.699508][ C0] [ 165.702536][ C0] RIP: 0010:__memcg_kmem_uncharge+0x2e/0x2e0 [ 165.708753][ C0] Code: 41 57 41 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 00 00 00 00 fc ff df 4c 8d 77 38 4d 89 f5 49 c1 ed 03 41 80 7c 05 00 00 <74> 08 4c 89 f7 e8 d8 f4 fa ff 4d 8b 3e b8 01 00 00 00 89 d9 d3 e0 [ 165.728619][ C0] RSP: 0018:ffffc90002736fd0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.737991][ C0] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a6d86200 [ 165.746264][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002a414c0 [ 165.754244][ C0] RBP: ffffc90002737000 R08: 000000000003a768 R09: fffffbfff120248a [ 165.762454][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffffea0002a414c0 [ 165.770606][ C0] R13: 1ffffd400054829f R14: ffffea0002a414f8 R15: ffff8880a7bc3968 [ 165.778602][ C0] ? free_thread_stack+0x124/0x590 [ 165.784787][ C0] free_thread_stack+0x12e/0x590 [ 165.790216][ C0] put_task_stack+0xa3/0x130 [ 165.794918][ C0] finish_task_switch+0x3f1/0x550 [ 165.799959][ C0] __schedule+0x9a8/0xcc0 [ 165.804293][ C0] ? ___preempt_schedule+0x16/0x18 [ 165.809573][ C0] preempt_schedule+0xdb/0x120 [ 165.814423][ C0] ___preempt_schedule+0x16/0x18 [ 165.819360][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 165.824135][ C0] ? vprintk_emit+0x368/0x3a0 [ 165.828909][ C0] vprintk_emit+0x36d/0x3a0 [ 165.833798][ C0] vprintk_default+0x28/0x30 [ 165.838386][ C0] vprintk_func+0x158/0x170 [ 165.842889][ C0] printk+0x62/0x8d [ 165.846855][ C0] ? __dev_set_promiscuity+0x1af/0x5c0 [ 165.852409][ C0] __dev_set_promiscuity+0x1c3/0x5c0 [ 165.857863][ C0] dev_set_promiscuity+0x58/0x120 [ 165.863429][ C0] hsr_add_port+0x218/0x590 [ 165.868007][ C0] hsr_dev_finalize+0x428/0x680 [ 165.872874][ C0] hsr_newlink+0x205/0x2e0 [ 165.877394][ C0] rtnl_newlink+0x1412/0x1bd0 [ 165.882235][ C0] ? __mutex_lock_common+0x1b20/0x2e10 [ 165.887690][ C0] ? rtnetlink_rcv_msg+0x83c/0xd40 [ 165.892908][ C0] ? rtnl_setlink+0x490/0x490 [ 165.897758][ C0] rtnetlink_rcv_msg+0x889/0xd40 [ 165.902708][ C0] ? rcu_lock_release+0x9/0x30 [ 165.907466][ C0] ? rcu_lock_release+0x9/0x30 [ 165.912451][ C0] ? rcu_lock_release+0x9/0x30 [ 165.917220][ C0] netlink_rcv_skb+0x19e/0x3d0 [ 165.922136][ C0] ? rtnetlink_bind+0x80/0x80 [ 165.926814][ C0] rtnetlink_rcv+0x1c/0x20 [ 165.931226][ C0] netlink_unicast+0x767/0x920 [ 165.935996][ C0] netlink_sendmsg+0xa21/0xd40 [ 165.940766][ C0] ? netlink_getsockopt+0x9f0/0x9f0 [ 165.946049][ C0] __sys_sendto+0x442/0x5e0 [ 165.950567][ C0] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 165.957067][ C0] ? prepare_exit_to_usermode+0x221/0x5b0 [ 165.962824][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 165.968280][ C0] __x64_sys_sendto+0xe5/0x100 [ 165.973042][ C0] do_syscall_64+0xf7/0x1c0 [ 165.977542][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.983428][ C0] RIP: 0033:0x414373 [ 165.987411][ C0] Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d fd 40 66 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff [ 166.007102][ C0] RSP: 002b:00007ffc384e5ef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 166.015587][ C0] RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414373 [ 166.023558][ C0] RDX: 0000000000000048 RSI: 0000000000a72250 RDI: 0000000000000003 [ 166.031708][ C0] RBP: 0000000000000000 R08: 00007ffc384e5f00 R09: 000000000000000c [ 166.040022][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 166.048124][ C0] R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003 [ 166.056141][ C0] rcu: rcu_preempt kthread starved for 10547 jiffies! g6053 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 166.067462][ C0] rcu: RCU grace-period kthread stack dump: [ 166.074059][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.081956][ C0] Call Trace: [ 166.085250][ C0] __schedule+0x9a0/0xcc0 [ 166.089591][ C0] schedule+0x181/0x210 [ 166.093746][ C0] schedule_timeout+0x14f/0x240 [ 166.098594][ C0] ? run_local_timers+0x120/0x120 [ 166.103741][ C0] rcu_gp_kthread+0xed8/0x1770 [ 166.108718][ C0] kthread+0x332/0x350 [ 166.112790][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 166.117897][ C0] ? kthread_blkcg+0xe0/0xe0 [ 166.122510][ C0] ret_from_fork+0x24/0x30