[ 42.775160][ T23] audit: type=1800 audit(1575451670.925:26): pid=8006 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.814349][ T23] audit: type=1800 audit(1575451670.925:27): pid=8006 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.842693][ T23] audit: type=1800 audit(1575451670.925:28): pid=8006 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. [ 43.443854][ T23] audit: type=1800 audit(1575451671.625:29): pid=8006 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 '10.128.0.203' (ECDSA) to the list of known hosts. 2019/12/04 09:28:01 fuzzer started 2019/12/04 09:28:02 dialing manager at 10.128.0.26:36481 2019/12/04 09:28:02 syscalls: 2691 2019/12/04 09:28:02 code coverage: enabled 2019/12/04 09:28:02 comparison tracing: enabled 2019/12/04 09:28:02 extra coverage: extra coverage is not supported by the kernel 2019/12/04 09:28:02 setuid sandbox: enabled 2019/12/04 09:28:02 namespace sandbox: enabled 2019/12/04 09:28:02 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 09:28:02 fault injection: enabled 2019/12/04 09:28:02 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 09:28:02 net packet injection: enabled 2019/12/04 09:28:02 net device setup: enabled 2019/12/04 09:28:02 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 09:28:02 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:28:03 executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000000)='/dev/dri/card#\x00', 0x1, 0x0) ioctl(r0, 0xffffffffffffffb6, &(0x7f0000000080)) 09:28:03 executing program 1: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000380)={0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = getpgid(0x0) r3 = pidfd_open(r2, 0x0) poll(&(0x7f0000000180)=[{r3}], 0x1, 0x2) syzkaller login: [ 55.577926][ T8169] IPVS: ftp: loaded support on port[0] = 21 09:28:03 executing program 2: r0 = syz_init_net_socket$llc(0x1a, 0x2, 0x0) setsockopt$llc_int(r0, 0x10c, 0x7, &(0x7f0000000140), 0x4) [ 55.734563][ T8171] IPVS: ftp: loaded support on port[0] = 21 [ 55.746204][ T8169] chnl_net:caif_netlink_parms(): no params data found [ 55.841506][ T8169] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.849133][ T8169] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.857215][ T8169] device bridge_slave_0 entered promiscuous mode [ 55.866945][ T8169] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.874137][ T8169] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.881981][ T8169] device bridge_slave_1 entered promiscuous mode [ 55.906717][ T8169] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.943798][ T8169] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.983903][ T8174] IPVS: ftp: loaded support on port[0] = 21 [ 56.005570][ T8169] team0: Port device team_slave_0 added [ 56.039212][ T8169] team0: Port device team_slave_1 added 09:28:04 executing program 3: munmap(&(0x7f0000ffc000/0x1000)=nil, 0x1000) r0 = shmget$private(0x0, 0x1000, 0x0, &(0x7f0000ffc000/0x1000)=nil) r1 = shmat(r0, &(0x7f0000ffc000/0x4000)=nil, 0x0) shmat(0x0, &(0x7f0000ffc000/0x1000)=nil, 0x0) shmdt(r1) [ 56.096220][ T8171] chnl_net:caif_netlink_parms(): no params data found [ 56.164202][ T8169] device hsr_slave_0 entered promiscuous mode 09:28:04 executing program 4: r0 = socket$inet_tcp(0x2, 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$sock_inet_SIOCSIFADDR(r0, 0x8916, &(0x7f0000000040)={'lo:\x05\xe6\r\x00\x00\x85\x01\x00\x00\x00\x10\x03\x00', {0x2, 0x0, @rand_addr=0x7ffffffc}}) [ 56.230354][ T8169] device hsr_slave_1 entered promiscuous mode [ 56.325724][ T8177] IPVS: ftp: loaded support on port[0] = 21 [ 56.374438][ T8171] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.389816][ T8171] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.397681][ T8171] device bridge_slave_0 entered promiscuous mode [ 56.439452][ T8171] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.460301][ T8171] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.468179][ T8171] device bridge_slave_1 entered promiscuous mode 09:28:04 executing program 5: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$sock_inet_SIOCGIFBRDADDR(r0, 0x8919, 0x0) [ 56.538727][ T8169] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.604013][ T8169] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.662662][ T8171] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.678103][ T8171] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.700278][ T8171] team0: Port device team_slave_0 added [ 56.708404][ T8171] team0: Port device team_slave_1 added [ 56.716755][ T8169] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.721092][ T8180] IPVS: ftp: loaded support on port[0] = 21 [ 56.774028][ T8169] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.856445][ T8182] IPVS: ftp: loaded support on port[0] = 21 [ 56.872735][ T8174] chnl_net:caif_netlink_parms(): no params data found [ 56.952625][ T8171] device hsr_slave_0 entered promiscuous mode [ 56.990243][ T8171] device hsr_slave_1 entered promiscuous mode [ 57.049918][ T8171] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.150901][ T8177] chnl_net:caif_netlink_parms(): no params data found [ 57.184270][ T8174] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.192137][ T8174] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.199657][ T8174] device bridge_slave_0 entered promiscuous mode [ 57.208009][ T8174] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.215184][ T8174] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.222997][ T8174] device bridge_slave_1 entered promiscuous mode [ 57.235848][ T8171] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.272044][ T8171] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.378383][ T8171] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.446512][ T8171] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.507868][ T8174] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.519249][ T8174] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.534176][ T8182] chnl_net:caif_netlink_parms(): no params data found [ 57.556969][ T8177] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.565398][ T8177] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.573447][ T8177] device bridge_slave_0 entered promiscuous mode [ 57.604555][ T8177] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.611813][ T8177] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.619503][ T8177] device bridge_slave_1 entered promiscuous mode [ 57.645019][ T8174] team0: Port device team_slave_0 added [ 57.654619][ T8174] team0: Port device team_slave_1 added [ 57.670705][ T8177] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.680104][ T8182] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.687134][ T8182] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.695763][ T8182] device bridge_slave_0 entered promiscuous mode [ 57.704389][ T8182] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.711530][ T8182] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.719214][ T8182] device bridge_slave_1 entered promiscuous mode [ 57.743743][ T8177] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.801546][ T8174] device hsr_slave_0 entered promiscuous mode [ 57.830206][ T8174] device hsr_slave_1 entered promiscuous mode [ 57.869917][ T8174] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.879659][ T8180] chnl_net:caif_netlink_parms(): no params data found [ 57.903547][ T8177] team0: Port device team_slave_0 added [ 57.928292][ T8182] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.944971][ T8182] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.955344][ T8177] team0: Port device team_slave_1 added [ 57.987497][ T8182] team0: Port device team_slave_0 added [ 57.998744][ T8182] team0: Port device team_slave_1 added [ 58.024746][ T8180] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.032155][ T8180] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.039756][ T8180] device bridge_slave_0 entered promiscuous mode [ 58.047402][ T8180] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.054659][ T8180] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.062618][ T8180] device bridge_slave_1 entered promiscuous mode [ 58.069546][ T8174] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.125138][ T8174] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.186460][ T8174] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.257919][ T8180] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.302230][ T8182] device hsr_slave_0 entered promiscuous mode [ 58.340236][ T8182] device hsr_slave_1 entered promiscuous mode [ 58.379890][ T8182] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.387658][ T8174] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.481578][ T8177] device hsr_slave_0 entered promiscuous mode [ 58.520148][ T8177] device hsr_slave_1 entered promiscuous mode [ 58.560016][ T8177] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.568638][ T8180] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.580392][ T8169] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.636851][ T8169] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.661748][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.671065][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.688434][ T8177] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 58.733328][ T8171] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.743446][ T8180] team0: Port device team_slave_0 added [ 58.752932][ T8180] team0: Port device team_slave_1 added [ 58.761515][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.770913][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.779861][ T3892] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.787086][ T3892] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.794994][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.803725][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.812170][ T3892] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.819216][ T3892] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.826831][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.835330][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.844172][ T8177] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 58.926555][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.934695][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.943352][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.951705][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.961082][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.969442][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.978062][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.986581][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.994999][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.003304][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.011572][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.020096][ T8177] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.061980][ T8177] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.102575][ T8182] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 59.141666][ T8182] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 59.221864][ T8180] device hsr_slave_0 entered promiscuous mode [ 59.280616][ T8180] device hsr_slave_1 entered promiscuous mode [ 59.319961][ T8180] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.329034][ T8169] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.337036][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.346850][ T8171] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.359076][ T8182] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 59.406018][ T8182] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 59.465781][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.473485][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.481260][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.490494][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.498792][ T8183] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.505878][ T8183] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.513441][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.522668][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.531357][ T8183] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.538385][ T8183] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.549171][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.577454][ T8174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.594172][ T8169] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.606459][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.621890][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.641452][ T8174] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.649140][ T8180] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 59.702261][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.712728][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.731206][ T8180] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 59.765613][ T8180] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 164.769689][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 164.776696][ C0] (detected by 0, t=10502 jiffies, g=6197, q=69) [ 164.783097][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953617-4294943114), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 164.796442][ C0] syz-executor.4 R running task 25056 8180 8178 0x0000400a [ 164.804329][ C0] Call Trace: [ 164.807601][ C0] [ 164.810450][ C0] sched_show_task+0x40f/0x560 [ 164.815209][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 164.820491][ C0] update_process_times+0x12d/0x180 [ 164.825681][ C0] tick_sched_timer+0x263/0x420 [ 164.830520][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 164.836054][ C0] __hrtimer_run_queues+0x403/0x840 [ 164.841257][ C0] hrtimer_interrupt+0x38c/0xda0 [ 164.846227][ C0] ? debug_smp_processor_id+0x9/0x20 [ 164.851516][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 164.857050][ C0] apic_timer_interrupt+0xf/0x20 [ 164.861971][ C0] [ 164.864900][ C0] RIP: 0010:__memcg_kmem_uncharge+0x2e/0x1a0 [ 164.870871][ 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 78 fe fa ff 4d 8b 3e b8 01 00 00 00 89 d9 d3 e0 [ 164.890464][ C0] RSP: 0018:ffffc90001f26d68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 164.898867][ C0] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a232c180 [ 164.906830][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00027b4280 [ 164.914798][ C0] RBP: ffffc90001f26d98 R08: dffffc0000000000 R09: fffffbfff120248a [ 164.922756][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffffea00027b4280 [ 164.930718][ C0] R13: 1ffffd40004f6857 R14: ffffea00027b42b8 R15: ffff88809e841468 [ 164.938696][ C0] ? free_thread_stack+0x124/0x590 [ 164.943798][ C0] free_thread_stack+0x12e/0x590 [ 164.948811][ C0] put_task_stack+0xa3/0x130 [ 164.953389][ C0] finish_task_switch+0x3f1/0x550 [ 164.958405][ C0] __schedule+0x9a8/0xcc0 [ 164.962726][ C0] ? console_unlock+0xe41/0xef0 [ 164.967565][ C0] ? ___preempt_schedule+0x16/0x18 [ 164.972662][ C0] preempt_schedule+0xdb/0x120 [ 164.977412][ C0] ___preempt_schedule+0x16/0x18 [ 164.982337][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 164.987001][ C0] ? vprintk_emit+0x368/0x3a0 [ 164.991670][ C0] vprintk_emit+0x36d/0x3a0 [ 164.996167][ C0] dev_vprintk_emit+0x495/0x513 [ 165.001039][ C0] ? __lock_acquire+0xc75/0x1be0 [ 165.005979][ C0] ? is_bpf_text_address+0x358/0x370 [ 165.011267][ C0] dev_printk_emit+0x6a/0x8c [ 165.015854][ C0] __netdev_printk+0x301/0x3e9 [ 165.020609][ C0] netdev_info+0xb9/0xe4 [ 165.024838][ C0] ? dev_change_name+0x192/0x9b0 [ 165.029768][ C0] dev_change_name+0x8a5/0x9b0 [ 165.034514][ C0] ? rtnetlink_rcv+0x1c/0x20 [ 165.039088][ C0] ? netlink_unicast+0x767/0x920 [ 165.044011][ C0] ? netlink_sendmsg+0xa21/0xd40 [ 165.048933][ C0] ? do_setlink+0x8bf/0x3960 [ 165.053512][ C0] ? do_syscall_64+0xf7/0x1c0 [ 165.058175][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.064242][ C0] do_setlink+0x8bf/0x3960 [ 165.068647][ C0] ? memset+0x31/0x40 [ 165.072620][ C0] ? __nla_validate_parse+0x18cd/0x1f40 [ 165.078170][ C0] ? __kasan_check_read+0x11/0x20 [ 165.083188][ C0] rtnl_newlink+0x14dd/0x1bd0 [ 165.087854][ C0] ? rtnl_newlink+0x371/0x1bd0 [ 165.092662][ C0] ? __mutex_lock_common+0x4f5/0x2e10 [ 165.098020][ C0] ? rtnetlink_rcv_msg+0x83c/0xd40 [ 165.103116][ C0] ? rcu_lock_release+0x9/0x30 [ 165.107878][ C0] ? rtnl_setlink+0x490/0x490 [ 165.112544][ C0] rtnetlink_rcv_msg+0x889/0xd40 [ 165.117484][ C0] ? rcu_lock_release+0x9/0x30 [ 165.122237][ C0] ? rcu_lock_release+0x9/0x30 [ 165.126994][ C0] ? rcu_lock_release+0x9/0x30 [ 165.131752][ C0] netlink_rcv_skb+0x19e/0x3d0 [ 165.136506][ C0] ? rtnetlink_bind+0x80/0x80 [ 165.141175][ C0] rtnetlink_rcv+0x1c/0x20 [ 165.145580][ C0] netlink_unicast+0x767/0x920 [ 165.150341][ C0] netlink_sendmsg+0xa21/0xd40 [ 165.155104][ C0] ? netlink_getsockopt+0x9f0/0x9f0 [ 165.160297][ C0] __sys_sendto+0x442/0x5e0 [ 165.164803][ C0] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 165.170866][ C0] ? prepare_exit_to_usermode+0x221/0x5b0 [ 165.176576][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 165.182036][ C0] __x64_sys_sendto+0xe5/0x100 [ 165.186794][ C0] do_syscall_64+0xf7/0x1c0 [ 165.191287][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.197169][ C0] RIP: 0033:0x414373 [ 165.201054][ 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 [ 165.220660][ C0] RSP: 002b:00007ffec1f0e628 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 165.229069][ C0] RAX: ffffffffffffffda RBX: 0000000000a71da0 RCX: 0000000000414373 [ 165.237033][ C0] RDX: 0000000000000030 RSI: 0000000000a71df0 RDI: 0000000000000005 [ 165.244994][ C0] RBP: 0000000000000000 R08: 00007ffec1f0e630 R09: 000000000000000c [ 165.252954][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 165.260912][ C0] R13: 0000000000000000 R14: 0000000000a71df0 R15: 0000000000000005 [ 165.268922][ C0] rcu: rcu_preempt kthread starved for 10551 jiffies! g6197 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 165.280011][ C0] rcu: RCU grace-period kthread stack dump: [ 165.285895][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.293780][ C0] Call Trace: [ 165.297069][ C0] __schedule+0x9a0/0xcc0 [ 165.301401][ C0] schedule+0x181/0x210 [ 165.305548][ C0] schedule_timeout+0x14f/0x240 [ 165.310387][ C0] ? run_local_timers+0x120/0x120 [ 165.315409][ C0] rcu_gp_kthread+0xed8/0x1770 [ 165.320195][ C0] kthread+0x332/0x350 [ 165.324283][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 165.329400][ C0] ? kthread_blkcg+0xe0/0xe0 [ 165.334005][ C0] ret_from_fork+0x24/0x30