[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 49.547559][ T25] audit: type=1800 audit(1575457857.032:25): pid=8273 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 49.579649][ T25] audit: type=1800 audit(1575457857.032:26): pid=8273 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 49.614154][ T25] audit: type=1800 audit(1575457857.032:27): pid=8273 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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 '10.128.0.100' (ECDSA) to the list of known hosts. 2019/12/04 11:11:07 fuzzer started 2019/12/04 11:11:09 dialing manager at 10.128.0.26:36481 2019/12/04 11:11:09 syscalls: 2691 2019/12/04 11:11:09 code coverage: enabled 2019/12/04 11:11:09 comparison tracing: enabled 2019/12/04 11:11:09 extra coverage: extra coverage is not supported by the kernel 2019/12/04 11:11:09 setuid sandbox: enabled 2019/12/04 11:11:09 namespace sandbox: enabled 2019/12/04 11:11:09 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 11:11:09 fault injection: enabled 2019/12/04 11:11:09 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 11:11:09 net packet injection: enabled 2019/12/04 11:11:09 net device setup: enabled 2019/12/04 11:11:09 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 11:11:09 devlink PCI setup: PCI device 0000:00:10.0 is not available 11:11:10 executing program 0: mkdir(&(0x7f0000000040)='./file0\x00', 0x0) pipe2$9p(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000180)=ANY=[@ANYBLOB="150000006bffff"], 0x7) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='9p\x00', 0x0, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) 11:11:10 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f00000000c0)="0800a1695e1dcfe87b1071") socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) close(r1) openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000100)='/\x02roup.stap\x00', 0x2761, 0x0) io_setup(0x7, &(0x7f0000000140)=0x0) bpf$MAP_CREATE(0x2, &(0x7f0000000040)={0x0, 0x0, 0x77fffb, 0x0, 0x0, 0x0}, 0x3c) io_submit(r2, 0x1e09328e, &(0x7f0000000040)=[&(0x7f0000000000)={0x0, 0x0, 0x0, 0x1000800000000001, 0x0, r1, 0x0, 0x12f}]) syzkaller login: [ 62.907782][ T8439] IPVS: ftp: loaded support on port[0] = 21 11:11:10 executing program 2: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x3) getsockopt$bt_BT_FLUSHABLE(r0, 0x112, 0x8, 0x0, &(0x7f0000000040)) [ 63.052839][ T8441] IPVS: ftp: loaded support on port[0] = 21 [ 63.072411][ T8439] chnl_net:caif_netlink_parms(): no params data found [ 63.202687][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.210989][ T8439] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.229829][ T8439] device bridge_slave_0 entered promiscuous mode [ 63.264150][ T8439] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.271443][ T8439] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.279327][ T8439] device bridge_slave_1 entered promiscuous mode [ 63.288743][ T8441] chnl_net:caif_netlink_parms(): no params data found 11:11:10 executing program 3: unshare(0x400) r0 = socket$inet_smc(0x2b, 0x1, 0x0) close(r0) listen(r0, 0x0) [ 63.334237][ T8446] IPVS: ftp: loaded support on port[0] = 21 [ 63.342734][ T8439] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.378172][ T8439] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.399929][ T8441] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.407019][ T8441] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.416757][ T8441] device bridge_slave_0 entered promiscuous mode [ 63.438787][ T8441] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.448555][ T8441] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.457204][ T8441] device bridge_slave_1 entered promiscuous mode [ 63.504728][ T8439] team0: Port device team_slave_0 added [ 63.541020][ T8441] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.568430][ T8439] team0: Port device team_slave_1 added [ 63.575321][ T8441] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.623996][ T8448] IPVS: ftp: loaded support on port[0] = 21 [ 63.656278][ T8441] team0: Port device team_slave_0 added 11:11:11 executing program 4: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)={0x5, 0xc, 0x4000000000000800, 0x1}, 0xf) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000000)={r0, &(0x7f0000000040), &(0x7f0000000000), 0x2}, 0x20) [ 63.724127][ T8439] device hsr_slave_0 entered promiscuous mode 11:11:11 executing program 5: sendmmsg$alg(0xffffffffffffffff, 0x0, 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup2(r1, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$netlink(0x10, 0x3, 0x4) r4 = syz_genetlink_get_family_id$devlink(&(0x7f00000002c0)='devlink\x00') sendmsg$DEVLINK_CMD_GET(r3, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000000)={0x68, r4, 0x533, 0x0, 0x0, {}, [@pci={{0x8, 0x1, 'pci\x00'}, {0x14, 0x2, '0000:00:10.0\x00'}}, @pci={{0x8, 0x1, 'pci\x00'}, {0x14, 0x2, '0000:00:10.0\x00'}}, @pci={{0x8, 0x1, 'pci\x00'}, {0x14, 0x2, '0000:00:10.0\x00'}}]}, 0x68}}, 0x0) [ 63.890393][ T8439] device hsr_slave_1 entered promiscuous mode [ 63.942599][ T8441] team0: Port device team_slave_1 added [ 63.955407][ T8451] IPVS: ftp: loaded support on port[0] = 21 [ 63.974935][ T8453] IPVS: ftp: loaded support on port[0] = 21 [ 63.983960][ T8446] chnl_net:caif_netlink_parms(): no params data found [ 64.082265][ T8441] device hsr_slave_0 entered promiscuous mode [ 64.110467][ T8441] device hsr_slave_1 entered promiscuous mode [ 64.169842][ T8441] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.201379][ T8446] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.208537][ T8446] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.217822][ T8446] device bridge_slave_0 entered promiscuous mode [ 64.257045][ T8446] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.264610][ T8446] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.273932][ T8446] device bridge_slave_1 entered promiscuous mode [ 64.307958][ T8446] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.344200][ T8439] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.407573][ T8446] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.418148][ T8441] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 64.494694][ T8441] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 64.542108][ T8441] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 64.581679][ T8439] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.624639][ T8439] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.688111][ T8439] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.733085][ T8441] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 64.857127][ T8451] chnl_net:caif_netlink_parms(): no params data found [ 64.875683][ T8446] team0: Port device team_slave_0 added [ 64.922484][ T8448] chnl_net:caif_netlink_parms(): no params data found [ 64.941670][ T8446] team0: Port device team_slave_1 added [ 64.957117][ T8453] chnl_net:caif_netlink_parms(): no params data found [ 65.015557][ T8439] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.072489][ T8446] device hsr_slave_0 entered promiscuous mode [ 65.120192][ T8446] device hsr_slave_1 entered promiscuous mode [ 65.179751][ T8446] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.203403][ T8451] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.213005][ T8451] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.220733][ T8451] device bridge_slave_0 entered promiscuous mode [ 65.237959][ T8448] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.245340][ T8448] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.253498][ T8448] device bridge_slave_0 entered promiscuous mode [ 65.272442][ T8451] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.279993][ T8451] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.287579][ T8451] device bridge_slave_1 entered promiscuous mode [ 65.301157][ T8439] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.308064][ T8448] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.315180][ T8448] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.324116][ T8448] device bridge_slave_1 entered promiscuous mode [ 65.349634][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.357843][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.393909][ T8453] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.401797][ T8453] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.409432][ T8453] device bridge_slave_0 entered promiscuous mode [ 65.427899][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.436767][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.447882][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.455072][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.463558][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.472659][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.481196][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.488241][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.496707][ T8443] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.506050][ T8451] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.518767][ T8448] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.539041][ T8446] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 65.593931][ T8453] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.601519][ T8453] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.609098][ T8453] device bridge_slave_1 entered promiscuous mode [ 65.622459][ T8451] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.633134][ T8448] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.645884][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.655491][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.664828][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.673762][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.683284][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.692241][ T8446] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 65.748249][ T8453] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.770450][ T8446] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 65.812499][ T8446] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 65.878272][ T8453] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.894442][ T8448] team0: Port device team_slave_0 added [ 65.904685][ T8441] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.914918][ T8451] team0: Port device team_slave_0 added [ 65.926258][ T8451] team0: Port device team_slave_1 added [ 65.941516][ T3097] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.953244][ T3097] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.963841][ T8448] team0: Port device team_slave_1 added [ 66.031772][ T8448] device hsr_slave_0 entered promiscuous mode [ 66.070198][ T8448] device hsr_slave_1 entered promiscuous mode [ 66.109794][ T8448] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.126429][ T8453] team0: Port device team_slave_0 added [ 66.137805][ T8453] team0: Port device team_slave_1 added [ 66.183183][ T8451] device hsr_slave_0 entered promiscuous mode [ 66.230173][ T8451] device hsr_slave_1 entered promiscuous mode [ 66.269861][ T8451] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.292076][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.300916][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.328746][ T8441] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.347510][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.356947][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.365756][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.373777][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.432885][ T8453] device hsr_slave_0 entered promiscuous mode [ 66.470236][ T8453] device hsr_slave_1 entered promiscuous mode [ 66.510007][ T8453] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.543964][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.556233][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.565360][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.575392][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.582526][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.590400][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.599152][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.607866][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.615005][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.623802][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.635892][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.661100][ T8451] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 66.702836][ T8451] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 66.752709][ T8451] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 66.812895][ T8451] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 66.871685][ T8448] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 66.912095][ T8448] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 66.952061][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.982593][ T8448] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 67.050941][ T8453] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 67.093134][ T8453] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 67.158670][ T8453] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 67.201497][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.211174][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.219498][ T8448] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 67.259515][ T8453] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 67.300979][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.309261][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.317118][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.333450][ T8439] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.351356][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.360721][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.368973][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.378053][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.389869][ T3097] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.398079][ T3097] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.412216][ T8446] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.436982][ T8441] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.472638][ T8446] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.487335][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.497185][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.520596][ T3097] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.529108][ T3097] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.538229][ T3097] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.545415][ T3097] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.553257][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.586710][ T8441] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.617048][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 172.639548][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 172.646549][ C0] (detected by 0, t=10502 jiffies, g=6981, q=90) [ 172.652962][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954344-4294943841), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 172.666320][ C0] kworker/0:1 R running task 26840 12 2 0x80004008 [ 172.674224][ C0] Workqueue: events linkwatch_event [ 172.679406][ C0] Call Trace: [ 172.682679][ C0] [ 172.685780][ C0] sched_show_task+0x40f/0x560 [ 172.690542][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 172.695818][ C0] update_process_times+0x12d/0x180 [ 172.701004][ C0] tick_sched_timer+0x263/0x420 [ 172.705840][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 172.711371][ C0] __hrtimer_run_queues+0x403/0x840 [ 172.717090][ C0] hrtimer_interrupt+0x38c/0xda0 [ 172.722045][ C0] ? debug_smp_processor_id+0x9/0x20 [ 172.727330][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 172.732865][ C0] apic_timer_interrupt+0xf/0x20 [ 172.738217][ C0] [ 172.741159][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 [ 172.747208][ C0] Code: 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d f4 3c cd 07 48 89 de e8 d4 01 3b 00 5b 5d c3 cc 48 8b 04 24 <65> 48 8b 0c 25 c0 1d 02 00 65 8b 15 38 84 8b 7e f7 c2 00 01 1f 00 [ 172.766796][ C0] RSP: 0018:ffffc90000d2f6c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 172.775206][ C0] RAX: ffffffff81487326 RBX: ffffea000219c080 RCX: 0000000000000000 [ 172.783249][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000219c080 [ 172.791209][ C0] RBP: ffffc90000d2f6f0 R08: dffffc0000000000 R09: fffffbfff120248a [ 172.801684][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a0a71d20 [ 172.809642][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888098321968 [ 172.817616][ C0] ? mod_memcg_page_state+0x16/0x190 [ 172.822894][ C0] ? free_thread_stack+0x124/0x590 [ 172.828007][ C0] ? mod_memcg_page_state+0x16/0x190 [ 172.833290][ C0] free_thread_stack+0x168/0x590 [ 172.838216][ C0] put_task_stack+0xa3/0x130 [ 172.842798][ C0] finish_task_switch+0x3f1/0x550 [ 172.847814][ C0] __schedule+0x9a8/0xcc0 [ 172.852138][ C0] ? ___preempt_schedule+0x16/0x18 [ 172.857239][ C0] preempt_schedule+0xdb/0x120 [ 172.861995][ C0] ___preempt_schedule+0x16/0x18 [ 172.866919][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 172.871590][ C0] ? vprintk_emit+0x368/0x3a0 [ 172.876256][ C0] vprintk_emit+0x36d/0x3a0 [ 172.880864][ C0] vprintk_default+0x28/0x30 [ 172.885439][ C0] vprintk_func+0x158/0x170 [ 172.889932][ C0] printk+0x62/0x8d [ 172.893821][ C0] ? addrconf_notify+0xb6b/0x3c90 [ 172.898829][ C0] ? addrconf_notify+0x779/0x3c90 [ 172.903843][ C0] addrconf_notify+0x2c8d/0x3c90 [ 172.908771][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 172.914041][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 172.919487][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 172.925021][ C0] ? trace_hardirqs_on+0x74/0x80 [ 172.929945][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 172.935305][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 172.940835][ C0] ? tls_dev_event+0x619/0xc00 [ 172.945670][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 172.951214][ C0] ? ip6mr_device_event+0x1ee/0x210 [ 172.956404][ C0] raw_notifier_call_chain+0xec/0x190 [ 172.961770][ C0] netdev_state_change+0x147/0x1f0 [ 172.966872][ C0] linkwatch_do_dev+0x10e/0x160 [ 172.971711][ C0] __linkwatch_run_queue+0x446/0x730 [ 172.977002][ C0] linkwatch_event+0x4c/0x60 [ 172.981579][ C0] process_one_work+0x7ef/0x10d0 [ 172.986530][ C0] worker_thread+0xc01/0x1630 [ 172.991223][ C0] kthread+0x332/0x350 [ 172.995284][ C0] ? rcu_lock_release+0x30/0x30 [ 173.000140][ C0] ? kthread_blkcg+0xe0/0xe0 [ 173.004721][ C0] ret_from_fork+0x24/0x30 [ 173.009141][ C0] rcu: rcu_preempt kthread starved for 10538 jiffies! g6981 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 173.020242][ C0] rcu: RCU grace-period kthread stack dump: [ 173.026404][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 173.034300][ C0] Call Trace: [ 173.037587][ C0] __schedule+0x9a0/0xcc0 [ 173.041916][ C0] schedule+0x181/0x210 [ 173.046066][ C0] schedule_timeout+0x14f/0x240 [ 173.050908][ C0] ? run_local_timers+0x120/0x120 [ 173.055925][ C0] rcu_gp_kthread+0xed8/0x1770 [ 173.060691][ C0] kthread+0x332/0x350 [ 173.064749][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 173.069852][ C0] ? kthread_blkcg+0xe0/0xe0 [ 173.074432][ C0] ret_from_fork+0x24/0x30