[ 42.687547][ T25] audit: type=1800 audit(1575337442.819:26): pid=8038 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.736854][ T25] audit: type=1800 audit(1575337442.819:27): pid=8038 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.773191][ T25] audit: type=1800 audit(1575337442.819:28): pid=8038 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. [ 43.522181][ T25] audit: type=1800 audit(1575337443.669:29): pid=8038 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.84' (ECDSA) to the list of known hosts. 2019/12/03 01:44:10 fuzzer started 2019/12/03 01:44:12 dialing manager at 10.128.0.26:38907 2019/12/03 01:44:12 syscalls: 2697 2019/12/03 01:44:12 code coverage: enabled 2019/12/03 01:44:12 comparison tracing: enabled 2019/12/03 01:44:12 extra coverage: extra coverage is not supported by the kernel 2019/12/03 01:44:12 setuid sandbox: enabled 2019/12/03 01:44:12 namespace sandbox: enabled 2019/12/03 01:44:12 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 01:44:12 fault injection: enabled 2019/12/03 01:44:12 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 01:44:12 net packet injection: enabled 2019/12/03 01:44:12 net device setup: enabled 2019/12/03 01:44:12 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 01:44:12 devlink PCI setup: PCI device 0000:00:10.0 is not available 01:44:13 executing program 0: r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x0) setsockopt$inet_sctp6_SCTP_PEER_ADDR_PARAMS(r0, 0x84, 0x9, &(0x7f0000000240)={0x0, @in={{0xa, 0x0, @dev}}}, 0x98) 01:44:13 executing program 1: r0 = socket(0xa, 0x2, 0x0) getsockopt$inet_udp_int(r0, 0x11, 0x64, 0xfffffffffffffffd, &(0x7f00000002c0)) syzkaller login: [ 53.372613][ T8201] IPVS: ftp: loaded support on port[0] = 21 [ 53.491766][ T8201] chnl_net:caif_netlink_parms(): no params data found [ 53.546290][ T8201] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.553954][ T8201] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.562986][ T8201] device bridge_slave_0 entered promiscuous mode [ 53.572354][ T8201] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.580568][ T8201] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.588579][ T8201] device bridge_slave_1 entered promiscuous mode 01:44:13 executing program 2: r0 = socket$inet_udplite(0x2, 0x2, 0x88) setsockopt$IP_VS_SO_SET_ADD(r0, 0x0, 0x482, &(0x7f0000000040)={0x6, @loopback, 0x15, 0x0, 'none\x00'}, 0x2c) setsockopt$IP_VS_SO_SET_FLUSH(r0, 0x0, 0x485, 0x0, 0x0) [ 53.630693][ T8204] IPVS: ftp: loaded support on port[0] = 21 [ 53.640586][ T8201] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.658161][ T8201] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.709741][ T8201] team0: Port device team_slave_0 added [ 53.729310][ T8201] team0: Port device team_slave_1 added 01:44:14 executing program 3: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket(0x200000000010, 0x3, 0x0) write(r1, &(0x7f0000000080)="2400000052001f0014f9f407112c04091c0007ed040001000a0000000900000000000000", 0x24) [ 53.838567][ T8201] device hsr_slave_0 entered promiscuous mode [ 53.895189][ T8201] device hsr_slave_1 entered promiscuous mode [ 53.971230][ T8207] IPVS: ftp: loaded support on port[0] = 21 [ 53.982615][ T8204] chnl_net:caif_netlink_parms(): no params data found 01:44:14 executing program 4: getsockopt$EBT_SO_GET_INFO(0xffffffffffffffff, 0x0, 0x80, 0x0, 0x0) fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) setsockopt$inet_sctp_SCTP_AUTH_DELETE_KEY(0xffffffffffffffff, 0x84, 0x19, 0x0, 0x0) syz_open_dev$sndpcmc(0x0, 0x0, 0x0) r0 = openat$proc_capi20(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_PCM_INFO(r0, 0xc1205531, 0x0) ioctl$DRM_IOCTL_AGP_BIND(0xffffffffffffffff, 0x40106436, &(0x7f00000002c0)) sendmsg$nl_route(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000300)=ANY=[@ANYRES32=0x0], 0x1}}, 0x0) vmsplice(0xffffffffffffffff, &(0x7f0000000000)=[{0x0}], 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_DELETE_QUEUE(0xffffffffffffffff, 0x408c5333, 0x0) r1 = socket$inet6_sctp(0xa, 0x10000000005, 0x84) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x1d, &(0x7f0000000340)=ANY=[@ANYBLOB, @ANYRES32=0x0], &(0x7f000095dffc)=0x2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$unix(0xffffffffffffffff, &(0x7f0000000080)=@abs={0x0, 0x0, 0x4e21}, 0x6e) unshare(0x40000000) [ 54.081978][ T8201] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.138042][ T8201] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.220720][ T8209] IPVS: ftp: loaded support on port[0] = 21 [ 54.248808][ T8201] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.276881][ T8201] netdevsim netdevsim0 netdevsim3: renamed from eth3 01:44:14 executing program 5: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) r3 = dup3(r0, r1, 0x0) dup2(r3, r2) [ 54.318146][ T8204] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.327132][ T8204] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.335141][ T8204] device bridge_slave_0 entered promiscuous mode [ 54.343286][ T8204] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.353408][ T8204] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.361664][ T8204] device bridge_slave_1 entered promiscuous mode [ 54.399838][ T8211] IPVS: ftp: loaded support on port[0] = 21 [ 54.451861][ T8201] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.459173][ T8201] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.466866][ T8201] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.473899][ T8201] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.520087][ T2933] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.528347][ T2933] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.551208][ T8214] IPVS: ftp: loaded support on port[0] = 21 [ 54.562462][ T8204] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.583367][ T8207] chnl_net:caif_netlink_parms(): no params data found [ 54.620700][ T8207] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.628518][ T8207] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.636748][ T8207] device bridge_slave_0 entered promiscuous mode [ 54.647104][ T8204] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.671589][ T8204] team0: Port device team_slave_0 added [ 54.678040][ T8207] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.686358][ T8207] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.694078][ T8207] device bridge_slave_1 entered promiscuous mode [ 54.714135][ T8204] team0: Port device team_slave_1 added [ 54.725104][ T8207] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.736782][ T8207] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.789232][ T8207] team0: Port device team_slave_0 added [ 54.796445][ T8207] team0: Port device team_slave_1 added [ 54.826580][ T8204] device hsr_slave_0 entered promiscuous mode [ 54.895449][ T8204] device hsr_slave_1 entered promiscuous mode [ 54.945080][ T8204] debugfs: Directory 'hsr0' with parent '/' already present! [ 54.979949][ T8209] chnl_net:caif_netlink_parms(): no params data found [ 55.001955][ T8201] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.051591][ T8211] chnl_net:caif_netlink_parms(): no params data found [ 55.107230][ T8207] device hsr_slave_0 entered promiscuous mode [ 55.145304][ T8207] device hsr_slave_1 entered promiscuous mode [ 55.184974][ T8207] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.221612][ T8209] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.228960][ T8209] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.237675][ T8209] device bridge_slave_0 entered promiscuous mode [ 55.249054][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.257986][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.268895][ T8201] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.287889][ T8209] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.296938][ T8209] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.304575][ T8209] device bridge_slave_1 entered promiscuous mode [ 55.332148][ T8204] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 55.380463][ T8204] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 55.448559][ T8209] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.497305][ T8204] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 55.549804][ T8209] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.564631][ T3968] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.573511][ T3968] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.581990][ T3968] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.589108][ T3968] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.611487][ T8207] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 55.666516][ T8204] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.722101][ T8214] chnl_net:caif_netlink_parms(): no params data found [ 55.731941][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.743292][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.751943][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.759021][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.770086][ T8211] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.777711][ T8211] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.785875][ T8211] device bridge_slave_0 entered promiscuous mode [ 55.792928][ T8207] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 55.848035][ T8209] team0: Port device team_slave_0 added [ 55.867127][ T3968] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.878023][ T8211] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.885891][ T8211] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.893469][ T8211] device bridge_slave_1 entered promiscuous mode [ 55.901780][ T8209] team0: Port device team_slave_1 added [ 55.907686][ T8207] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 55.957882][ T8207] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 56.016718][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.034244][ T8214] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.042435][ T8214] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.050570][ T8214] device bridge_slave_0 entered promiscuous mode [ 56.058556][ T8214] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.065756][ T8214] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.073812][ T8214] device bridge_slave_1 entered promiscuous mode [ 56.085771][ T2933] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.094206][ T2933] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.103191][ T2933] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.123641][ T8211] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.141702][ T8201] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 56.152947][ T8201] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.175591][ T8211] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.191012][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.199983][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.208495][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.216881][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.225903][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.234169][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.242539][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.252788][ T8214] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.309547][ T8209] device hsr_slave_0 entered promiscuous mode [ 56.355261][ T8209] device hsr_slave_1 entered promiscuous mode [ 56.397735][ T8209] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.424700][ T8214] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.451288][ T8211] team0: Port device team_slave_0 added [ 56.460180][ T8211] team0: Port device team_slave_1 added [ 56.483311][ T8214] team0: Port device team_slave_0 added [ 56.491943][ T8214] team0: Port device team_slave_1 added [ 56.558310][ T8211] device hsr_slave_0 entered promiscuous mode [ 56.595358][ T8211] device hsr_slave_1 entered promiscuous mode [ 56.635066][ T8211] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.660185][ T8201] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.673563][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.681312][ T3971] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.706139][ T8209] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 56.747283][ T8209] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 56.787861][ T8209] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 56.878862][ T8214] device hsr_slave_0 entered promiscuous mode [ 56.935290][ T8214] device hsr_slave_1 entered promiscuous mode [ 56.975139][ T8214] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.061018][ T8211] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 162.024817][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 162.031830][ C1] (detected by 1, t=10502 jiffies, g=6297, q=142) [ 162.038318][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953329-4294942826), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 162.051663][ C1] syz-executor.4 R running task 24768 8211 8210 0x0000400a [ 162.059563][ C1] Call Trace: [ 162.062836][ C1] [ 162.065696][ C1] sched_show_task+0x40f/0x560 [ 162.070459][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 162.075745][ C1] update_process_times+0x12d/0x180 [ 162.080944][ C1] tick_sched_timer+0x263/0x420 [ 162.085809][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 162.091343][ C1] __hrtimer_run_queues+0x403/0x840 [ 162.096545][ C1] hrtimer_interrupt+0x38c/0xda0 [ 162.101486][ C1] ? debug_smp_processor_id+0x9/0x20 [ 162.106761][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 162.112292][ C1] apic_timer_interrupt+0xf/0x20 [ 162.117214][ C1] [ 162.120142][ C1] RIP: 0010:free_thread_stack+0x151/0x590 [ 162.125850][ C1] Code: 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 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 25 a4 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 162.145443][ C1] RSP: 0018:ffffc90002586da8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 162.153842][ C1] RAX: 1ffff1100d83ffd1 RBX: ffff88806c1ffe88 RCX: 0000000000000000 [ 162.161801][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0001b08040 [ 162.169787][ C1] RBP: ffffc90002586de0 R08: dffffc0000000000 R09: fffffbfff120248a [ 162.177760][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c1fff20 [ 162.185726][ C1] R13: dffffc0000000000 R14: 1ffff1100d83ffe4 R15: ffff8880a7495528 [ 162.193742][ C1] ? free_thread_stack+0x12e/0x590 [ 162.198878][ C1] put_task_stack+0xa3/0x130 [ 162.203471][ C1] finish_task_switch+0x3f1/0x550 [ 162.208498][ C1] __schedule+0x9a8/0xcc0 [ 162.212824][ C1] ? console_unlock+0xe41/0xef0 [ 162.217662][ C1] ? ___preempt_schedule+0x16/0x18 [ 162.222778][ C1] preempt_schedule+0xdb/0x120 [ 162.227532][ C1] ___preempt_schedule+0x16/0x18 [ 162.232461][ C1] ? vprintk_emit+0x2fe/0x3a0 [ 162.237128][ C1] ? vprintk_emit+0x368/0x3a0 [ 162.241796][ C1] vprintk_emit+0x36d/0x3a0 [ 162.246294][ C1] dev_vprintk_emit+0x495/0x513 [ 162.251280][ C1] ? __lock_acquire+0xc75/0x1be0 [ 162.256222][ C1] ? is_bpf_text_address+0x358/0x370 [ 162.261509][ C1] dev_printk_emit+0x6a/0x8c [ 162.266099][ C1] __netdev_printk+0x301/0x3e9 [ 162.270860][ C1] netdev_info+0xb9/0xe4 [ 162.275108][ C1] ? dev_change_name+0x192/0x9b0 [ 162.280044][ C1] dev_change_name+0x8a5/0x9b0 [ 162.284880][ C1] ? rtnetlink_rcv+0x1c/0x20 [ 162.289461][ C1] ? netlink_unicast+0x767/0x920 [ 162.294392][ C1] ? netlink_sendmsg+0xa21/0xd40 [ 162.299332][ C1] ? do_setlink+0x8bf/0x3960 [ 162.303922][ C1] ? do_syscall_64+0xf7/0x1c0 [ 162.308588][ C1] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 162.314656][ C1] do_setlink+0x8bf/0x3960 [ 162.319068][ C1] ? memset+0x31/0x40 [ 162.323038][ C1] ? __nla_validate_parse+0x18cd/0x1f40 [ 162.328602][ C1] ? __kasan_check_read+0x11/0x20 [ 162.333629][ C1] rtnl_newlink+0x14dd/0x1bd0 [ 162.338297][ C1] ? rtnl_newlink+0x371/0x1bd0 [ 162.343109][ C1] ? __mutex_lock_common+0x4f5/0x2e10 [ 162.348472][ C1] ? rtnetlink_rcv_msg+0x83c/0xd40 [ 162.353573][ C1] ? rcu_lock_release+0x9/0x30 [ 162.358341][ C1] ? rtnl_setlink+0x490/0x490 [ 162.363015][ C1] rtnetlink_rcv_msg+0x889/0xd40 [ 162.367968][ C1] ? rcu_lock_release+0x9/0x30 [ 162.372736][ C1] ? rcu_lock_release+0x9/0x30 [ 162.377507][ C1] ? rcu_lock_release+0x9/0x30 [ 162.382274][ C1] netlink_rcv_skb+0x19e/0x3d0 [ 162.387032][ C1] ? rtnetlink_bind+0x80/0x80 [ 162.391704][ C1] rtnetlink_rcv+0x1c/0x20 [ 162.396110][ C1] netlink_unicast+0x767/0x920 [ 162.400875][ C1] netlink_sendmsg+0xa21/0xd40 [ 162.405643][ C1] ? netlink_getsockopt+0x9f0/0x9f0 [ 162.410830][ C1] __sys_sendto+0x442/0x5e0 [ 162.415334][ C1] ? up_read+0x1d/0x20 [ 162.419417][ C1] ? do_user_addr_fault+0x655/0xaf0 [ 162.424628][ C1] ? check_preemption_disabled+0xb4/0x260 [ 162.430361][ C1] ? debug_smp_processor_id+0x9/0x20 [ 162.435642][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 162.441108][ C1] __x64_sys_sendto+0xe5/0x100 [ 162.445865][ C1] do_syscall_64+0xf7/0x1c0 [ 162.450356][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 162.456234][ C1] RIP: 0033:0x414373 [ 162.460118][ C1] 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 [ 162.479732][ C1] RSP: 002b:00007ffcd4c8c248 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 162.488139][ C1] RAX: ffffffffffffffda RBX: 0000000000a71da0 RCX: 0000000000414373 [ 162.496097][ C1] RDX: 0000000000000030 RSI: 0000000000a71df0 RDI: 0000000000000005 [ 162.504055][ C1] RBP: 0000000000000000 R08: 00007ffcd4c8c250 R09: 000000000000000c [ 162.512012][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 162.519970][ C1] R13: 0000000000000000 R14: 0000000000a71df0 R15: 0000000000000005 [ 162.527952][ C1] rcu: rcu_preempt kthread starved for 10552 jiffies! g6297 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 162.539036][ C1] rcu: RCU grace-period kthread stack dump: [ 162.544940][ C1] rcu_preempt R running task 29104 10 2 0x80004000 [ 162.552830][ C1] Call Trace: [ 162.556118][ C1] __schedule+0x9a0/0xcc0 [ 162.560447][ C1] schedule+0x181/0x210 [ 162.564593][ C1] schedule_timeout+0x14f/0x240 [ 162.569432][ C1] ? run_local_timers+0x120/0x120 [ 162.574451][ C1] rcu_gp_kthread+0xed8/0x1770 [ 162.579214][ C1] kthread+0x332/0x350 [ 162.583269][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 162.588370][ C1] ? kthread_blkcg+0xe0/0xe0 [ 162.592953][ C1] ret_from_fork+0x24/0x30