[ 44.342579][ T28] audit: type=1800 audit(1578446752.347:26): pid=8234 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.392782][ T28] audit: type=1800 audit(1578446752.347:27): pid=8234 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.418654][ T28] audit: type=1800 audit(1578446752.347:28): pid=8234 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. [ 44.983063][ T28] audit: type=1800 audit(1578446753.017:29): pid=8234 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 '10.128.1.27' (ECDSA) to the list of known hosts. 2020/01/08 01:26:03 fuzzer started 2020/01/08 01:26:04 dialing manager at 10.128.0.26:35703 2020/01/08 01:26:04 syscalls: 2824 2020/01/08 01:26:04 code coverage: enabled 2020/01/08 01:26:04 comparison tracing: enabled 2020/01/08 01:26:04 extra coverage: enabled 2020/01/08 01:26:04 setuid sandbox: enabled 2020/01/08 01:26:04 namespace sandbox: enabled 2020/01/08 01:26:04 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 01:26:04 fault injection: enabled 2020/01/08 01:26:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 01:26:04 net packet injection: enabled 2020/01/08 01:26:04 net device setup: enabled 2020/01/08 01:26:04 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 01:26:04 devlink PCI setup: PCI device 0000:00:10.0 is not available 01:26:05 executing program 0: mbind(&(0x7f0000ffc000/0x1000)=nil, 0x1000, 0x4003, &(0x7f0000000200)=0x1fd, 0x6, 0x0) mbind(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x4003, &(0x7f0000000000)=0x101d, 0x7, 0x0) 01:26:05 executing program 1: mkdir(&(0x7f0000001b40)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000340)='./file0\x00', &(0x7f000000c000)='ramfs\x00', 0x2000000, 0x0) chdir(&(0x7f0000000040)='./file0\x00') r0 = open(&(0x7f00000000c0)='./file0\x00', 0x141042, 0x0) write$RDMA_USER_CM_CMD_BIND(r0, &(0x7f0000000200)={0x14, 0x88, 0xfa00, {0xffffffffffffffff, 0x0, 0x0, @in6={0xa, 0x0, 0x0, @mcast1}}}, 0x90) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r0, r0, &(0x7f00000001c0), 0xa198) syzkaller login: [ 57.661697][ T8398] IPVS: ftp: loaded support on port[0] = 21 [ 57.811481][ T8398] chnl_net:caif_netlink_parms(): no params data found 01:26:05 executing program 2: r0 = socket$inet6(0xa, 0x3, 0x6b) ioctl(r0, 0x1000008912, &(0x7f0000000100)="0815b5055e0bcfe87b3071") r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000100)={0x16, 0x0, 0x40002, 0x2, 0x0, 0x1}, 0x259) bpf$MAP_LOOKUP_ELEM(0x1, &(0x7f0000000200)={r1, 0x0, 0x0}, 0x20) [ 57.861415][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.869101][ T8398] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.894867][ T8398] device bridge_slave_0 entered promiscuous mode [ 57.904170][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.911346][ T8398] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.919320][ T8398] device bridge_slave_1 entered promiscuous mode [ 57.936561][ T8401] IPVS: ftp: loaded support on port[0] = 21 [ 57.955415][ T8398] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.975999][ T8398] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.999469][ T8398] team0: Port device team_slave_0 added [ 58.027502][ T8398] team0: Port device team_slave_1 added 01:26:06 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000140)='status\x00') fsconfig$FSCONFIG_SET_BINARY(r0, 0x2, 0x0, 0x0, 0x0) [ 58.145228][ T8398] device hsr_slave_0 entered promiscuous mode [ 58.204288][ T8398] device hsr_slave_1 entered promiscuous mode [ 58.271849][ T8403] IPVS: ftp: loaded support on port[0] = 21 01:26:06 executing program 4: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$inet6(0xa, 0x6, 0x0) listen(r1, 0x0) r2 = socket$inet(0x10, 0x80803, 0x4000000000000004) sendmsg(r2, &(0x7f0000000180)={0x0, 0xc2, &(0x7f0000000000)=[{&(0x7f0000000040)="4c0000001300ff09fffd06000000b700008c0e0a000000000000683540150024001d001fc42e80b598bc593ab6821148a730de33a49868c62b2ca654a6613b6aabf35d4c1cbc882b07988100", 0x4c}], 0x1}, 0x0) [ 58.376575][ T8405] IPVS: ftp: loaded support on port[0] = 21 [ 58.437476][ T8401] chnl_net:caif_netlink_parms(): no params data found [ 58.553597][ T8403] chnl_net:caif_netlink_parms(): no params data found [ 58.615061][ T8401] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.622212][ T8401] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.633801][ T8401] device bridge_slave_0 entered promiscuous mode [ 58.662138][ T8409] IPVS: ftp: loaded support on port[0] = 21 [ 58.674190][ T8401] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.681357][ T8401] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.693608][ T8401] device bridge_slave_1 entered promiscuous mode [ 58.706562][ T8398] netdevsim netdevsim0 netdevsim0: renamed from eth0 01:26:06 executing program 5: r0 = syz_open_dev$sndpcmc(&(0x7f0000001fee)='/dev/snd/pcmC#D#c\x00', 0x0, 0x0) ioctl(r0, 0x4141, 0x0) [ 58.775766][ T8398] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.838058][ T8398] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.885910][ T8398] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.970087][ T8403] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.977715][ T8403] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.986977][ T8403] device bridge_slave_0 entered promiscuous mode [ 59.029117][ T8403] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.038147][ T8403] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.046053][ T8403] device bridge_slave_1 entered promiscuous mode [ 59.080749][ T8411] IPVS: ftp: loaded support on port[0] = 21 [ 59.088032][ T8405] chnl_net:caif_netlink_parms(): no params data found [ 59.100761][ T8401] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.112952][ T8403] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.136233][ T8403] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.150511][ T8401] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.190352][ T8403] team0: Port device team_slave_0 added [ 59.221887][ T8403] team0: Port device team_slave_1 added [ 59.229515][ T8401] team0: Port device team_slave_0 added [ 59.252063][ T8405] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.259681][ T8405] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.269151][ T8405] device bridge_slave_0 entered promiscuous mode [ 59.277510][ T8405] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.284797][ T8405] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.292593][ T8405] device bridge_slave_1 entered promiscuous mode [ 59.310598][ T8401] team0: Port device team_slave_1 added [ 59.355344][ T8409] chnl_net:caif_netlink_parms(): no params data found [ 59.365626][ T8405] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.385441][ T8405] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.455279][ T8401] device hsr_slave_0 entered promiscuous mode [ 59.492925][ T8401] device hsr_slave_1 entered promiscuous mode [ 59.532913][ T8401] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.540916][ T8401] Cannot create hsr debugfs directory [ 59.626118][ T8403] device hsr_slave_0 entered promiscuous mode [ 59.662861][ T8403] device hsr_slave_1 entered promiscuous mode [ 59.702689][ T8403] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.710297][ T8403] Cannot create hsr debugfs directory [ 59.717975][ T8398] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.731087][ T8405] team0: Port device team_slave_0 added [ 59.746623][ T8405] team0: Port device team_slave_1 added [ 59.786029][ T8409] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.793474][ T8409] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.801806][ T8409] device bridge_slave_0 entered promiscuous mode [ 59.828504][ T8409] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.835810][ T8409] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.843795][ T8409] device bridge_slave_1 entered promiscuous mode [ 59.904603][ T8405] device hsr_slave_0 entered promiscuous mode [ 59.942963][ T8405] device hsr_slave_1 entered promiscuous mode [ 59.993457][ T8405] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.001063][ T8405] Cannot create hsr debugfs directory [ 60.031437][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.040042][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.088328][ T8398] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.099639][ T8409] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.113024][ T8409] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.148543][ T8411] chnl_net:caif_netlink_parms(): no params data found [ 60.167713][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.177515][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.186806][ T27] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.194042][ T27] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.201960][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.211605][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.220029][ T27] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.227101][ T27] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.234766][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.255166][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.282030][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.299731][ T8409] team0: Port device team_slave_0 added [ 60.330169][ T8403] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.390242][ T8409] team0: Port device team_slave_1 added [ 60.397597][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.406601][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.414994][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.423666][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.432204][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.446144][ T8405] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 60.504366][ T8403] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.537051][ T8403] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.612172][ T8411] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.619402][ T8411] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.627239][ T8411] device bridge_slave_0 entered promiscuous mode [ 60.634932][ T8405] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 60.674539][ T8401] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.714681][ T8403] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.766202][ T8398] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.777135][ T8398] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.789289][ T2770] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.797828][ T2770] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.806968][ T2770] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.815678][ T2770] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.824528][ T8411] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.831721][ T8411] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.839963][ T8411] device bridge_slave_1 entered promiscuous mode [ 60.850874][ T8405] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 60.894579][ T8401] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.946091][ T2770] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.961513][ T8411] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.972830][ T8405] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.028244][ T8401] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 61.125283][ T8409] device hsr_slave_0 entered promiscuous mode [ 61.152813][ T8409] device hsr_slave_1 entered promiscuous mode [ 61.202754][ T8409] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.210402][ T8409] Cannot create hsr debugfs directory [ 61.236074][ T8411] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.259106][ T8411] team0: Port device team_slave_0 added [ 61.270314][ T8401] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 61.321019][ T8411] team0: Port device team_slave_1 added [ 61.356627][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.366552][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.414592][ T8411] device hsr_slave_0 entered promiscuous mode [ 61.452837][ T8411] device hsr_slave_1 entered promiscuous mode [ 61.493142][ T8411] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.500729][ T8411] Cannot create hsr debugfs directory [ 61.526938][ T8398] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.617251][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.629330][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.641274][ T8409] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 61.686629][ T8409] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 61.781115][ T8409] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 61.815303][ T8409] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 61.895302][ T8398] device veth0_vlan entered promiscuous mode [ 61.925475][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.934059][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.943840][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.951485][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.959647][ T8411] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 62.035536][ T8411] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 62.095187][ T8411] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 62.135016][ T8411] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 62.192086][ T8398] device veth1_vlan entered promiscuous mode [ 62.209223][ T8403] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.239944][ T8401] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.265848][ T8403] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.273973][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.281900][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.290600][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.298885][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.327717][ T8405] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.351406][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.360068][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.369186][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.378173][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.386827][ T2678] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.393986][ T2678] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.403540][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.424403][ T8401] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.454859][ T8411] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.469493][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.479579][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.489144][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.496252][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.507722][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.521468][ T8405] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.556891][ T8403] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 62.568024][ T8403] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 167.502450][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 167.509489][ C0] (detected by 0, t=10502 jiffies, g=6509, q=214) [ 167.516240][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953893-4294943390), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 167.529582][ C0] syz-executor.2 R running task 24488 8403 8402 0x0000400a [ 167.537482][ C0] Call Trace: [ 167.540752][ C0] [ 167.543599][ C0] sched_show_task+0x40f/0x560 [ 167.548367][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 167.553647][ C0] update_process_times+0x12d/0x180 [ 167.558925][ C0] tick_sched_timer+0x263/0x420 [ 167.563766][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.569391][ C0] __hrtimer_run_queues+0x403/0x840 [ 167.574593][ C0] hrtimer_interrupt+0x38c/0xda0 [ 167.579562][ C0] ? debug_smp_processor_id+0x9/0x20 [ 167.584873][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 167.590686][ C0] apic_timer_interrupt+0xf/0x20 [ 167.595617][ C0] [ 167.598556][ C0] RIP: 0010:free_thread_stack+0x124/0x590 [ 167.604266][ C0] Code: ff 48 c1 e8 06 48 83 e0 c0 48 bf 00 00 00 00 00 ea ff ff 48 01 c7 be 03 00 00 00 e8 86 91 61 00 e9 5d 04 00 00 e8 3c 2c 2e 00 <48> 89 df 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 73 [ 167.624466][ C0] RSP: 0018:ffffc90001ea6e20 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 167.632874][ C0] RAX: ffffffff81489244 RBX: ffffea00027b8040 RCX: ffff88808d6b2140 [ 167.640842][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00027b8040 [ 167.648804][ C0] RBP: ffffc90001ea6e58 R08: dffffc0000000000 R09: fffffbfff124248a [ 167.656852][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff88806a2fe020 [ 167.665710][ C0] R13: dffffc0000000000 R14: 1ffff1100d45fc04 R15: ffff8880984316f8 [ 167.673700][ C0] ? free_thread_stack+0x124/0x590 [ 167.678850][ C0] put_task_stack+0xa3/0x130 [ 167.683448][ C0] finish_task_switch+0x3f1/0x550 [ 167.688497][ C0] __schedule+0x9a8/0xcc0 [ 167.692845][ C0] ? ___preempt_schedule+0x16/0x18 [ 167.697950][ C0] preempt_schedule+0xdb/0x120 [ 167.702719][ C0] ? addrconf_dad_run+0x5ae/0x5e0 [ 167.707733][ C0] ___preempt_schedule+0x16/0x18 [ 167.712675][ C0] ? mark_lock+0x107/0x1650 [ 167.717167][ C0] __local_bh_enable_ip+0x17d/0x240 [ 167.722359][ C0] ? addrconf_dad_run+0x5ae/0x5e0 [ 167.727383][ C0] _raw_read_unlock_bh+0x2f/0x40 [ 167.732313][ C0] addrconf_dad_run+0x5ae/0x5e0 [ 167.737161][ C0] addrconf_notify+0x32f9/0x3c90 [ 167.742118][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 167.747689][ C0] raw_notifier_call_chain+0xec/0x190 [ 167.753216][ C0] __dev_notify_flags+0x24d/0x4d0 [ 167.758249][ C0] dev_change_flags+0xec/0x190 [ 167.763013][ C0] do_setlink+0xb2e/0x3960 [ 167.767434][ C0] ? __nla_validate_parse+0x18cd/0x1f40 [ 167.772986][ C0] ? __kasan_check_read+0x11/0x20 [ 167.778006][ C0] rtnl_newlink+0x14dd/0x1bd0 [ 167.782675][ C0] ? rtnl_newlink+0x351/0x1bd0 [ 167.787487][ C0] ? __mutex_lock_common+0x4f5/0x2e10 [ 167.792864][ C0] ? rtnetlink_rcv_msg+0x83c/0xd40 [ 167.797969][ C0] ? rcu_lock_release+0x9/0x30 [ 167.802791][ C0] ? rtnl_setlink+0x490/0x490 [ 167.807559][ C0] rtnetlink_rcv_msg+0x889/0xd40 [ 167.812515][ C0] ? rcu_lock_release+0x9/0x30 [ 167.817290][ C0] ? rcu_lock_release+0x9/0x30 [ 167.822060][ C0] ? rcu_lock_release+0x9/0x30 [ 167.826843][ C0] netlink_rcv_skb+0x19e/0x3d0 [ 167.831610][ C0] ? rtnetlink_bind+0x80/0x80 [ 167.836294][ C0] rtnetlink_rcv+0x1c/0x20 [ 167.840723][ C0] netlink_unicast+0x767/0x920 [ 167.845489][ C0] netlink_sendmsg+0xa31/0xd50 [ 167.850431][ C0] ? netlink_getsockopt+0x9f0/0x9f0 [ 167.855620][ C0] __sys_sendto+0x442/0x5e0 [ 167.860149][ C0] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 167.866382][ C0] ? prepare_exit_to_usermode+0x221/0x5b0 [ 167.872092][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 167.877560][ C0] __x64_sys_sendto+0xe5/0x100 [ 167.882335][ C0] do_syscall_64+0xf7/0x1c0 [ 167.887028][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 167.892924][ C0] RIP: 0033:0x414c43 [ 167.896825][ 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 2d 38 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 [ 167.916422][ C0] RSP: 002b:00007ffda4177418 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 167.924822][ C0] RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414c43 [ 167.932823][ C0] RDX: 000000000000002c RSI: 0000000000a72250 RDI: 0000000000000003 [ 167.940804][ C0] RBP: 0000000000000000 R08: 00007ffda4177420 R09: 000000000000000c [ 167.948765][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 167.956729][ C0] R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003 [ 167.964718][ C0] rcu: rcu_preempt kthread starved for 10548 jiffies! g6509 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.975812][ C0] rcu: RCU grace-period kthread stack dump: [ 167.981725][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.989642][ C0] Call Trace: [ 167.992958][ C0] __schedule+0x9a0/0xcc0 [ 167.997382][ C0] schedule+0x181/0x210 [ 168.001545][ C0] schedule_timeout+0x14f/0x240 [ 168.006388][ C0] ? run_local_timers+0x120/0x120 [ 168.011419][ C0] rcu_gp_kthread+0xed8/0x1770 [ 168.016186][ C0] kthread+0x332/0x350 [ 168.020273][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 168.025734][ C0] ? kthread_blkcg+0xe0/0xe0 [ 168.030411][ C0] ret_from_fork+0x24/0x30