[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.503778][ T25] audit: type=1800 audit(1575382164.505:25): pid=8060 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 43.532834][ T25] audit: type=1800 audit(1575382164.505:26): pid=8060 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.571309][ T25] audit: type=1800 audit(1575382164.505:27): pid=8060 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 '10.128.10.5' (ECDSA) to the list of known hosts. 2019/12/03 14:09:34 fuzzer started 2019/12/03 14:09:36 dialing manager at 10.128.0.26:45711 2019/12/03 14:09:36 syscalls: 2689 2019/12/03 14:09:36 code coverage: enabled 2019/12/03 14:09:36 comparison tracing: enabled 2019/12/03 14:09:36 extra coverage: extra coverage is not supported by the kernel 2019/12/03 14:09:36 setuid sandbox: enabled 2019/12/03 14:09:36 namespace sandbox: enabled 2019/12/03 14:09:36 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 14:09:36 fault injection: enabled 2019/12/03 14:09:36 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 14:09:36 net packet injection: enabled 2019/12/03 14:09:36 net device setup: enabled 2019/12/03 14:09:36 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 14:09:36 devlink PCI setup: PCI device 0000:00:10.0 is not available 14:09:37 executing program 0: r0 = syz_init_net_socket$nfc_raw(0x27, 0x3, 0x0) r1 = open(&(0x7f0000000040)='./file0\x00', 0xfc, 0x0) dup3(r1, r0, 0x0) 14:09:37 executing program 1: unshare(0x400) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$sock_int(r2, 0x1, 0xa, &(0x7f0000000100), 0xfe00) syzkaller login: [ 56.640267][ T8225] IPVS: ftp: loaded support on port[0] = 21 [ 56.790111][ T8225] chnl_net:caif_netlink_parms(): no params data found [ 56.838525][ T8228] IPVS: ftp: loaded support on port[0] = 21 [ 56.875040][ T8225] bridge0: port 1(bridge_slave_0) entered blocking state 14:09:37 executing program 2: perf_event_open(&(0x7f0000000140)={0x4, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, 0x0, 0x0) socket$nl_netfilter(0x10, 0x3, 0xc) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) ioctl$KDSKBMETA(0xffffffffffffffff, 0x4b63, 0x0) sendmsg$TIPC_CMD_GET_REMOTE_MNG(0xffffffffffffffff, 0x0, 0x0) syz_open_dev$midi(&(0x7f0000000280)='/dev/midi#\x00', 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(0xffffffffffffffff, 0x81785501, 0x0) fremovexattr(0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat$ashmem(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ashmem\x00', 0x0, 0x0) open_by_handle_at(0xffffffffffffffff, 0x0, 0x630e80) ioctl$ASHMEM_SET_SIZE(0xffffffffffffffff, 0x40087703, 0xa) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, 0x0, 0x0) r0 = openat$audio(0xffffffffffffff9c, &(0x7f0000000180)='/dev/audio\x00', 0x0, 0x0) readv(r0, &(0x7f0000395000)=[{&(0x7f00004d2000)=""/4096, 0x1000}], 0x1) setsockopt$SO_ATTACH_FILTER(0xffffffffffffffff, 0x1, 0x1a, 0x0, 0x0) syz_genetlink_get_family_id$ipvs(0x0) [ 56.883192][ T8225] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.891239][ T8225] device bridge_slave_0 entered promiscuous mode [ 56.917103][ T8225] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.927765][ T8225] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.952668][ T8225] device bridge_slave_1 entered promiscuous mode [ 57.065204][ T8225] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.094263][ T8225] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.126698][ T8225] team0: Port device team_slave_0 added [ 57.135072][ T8225] team0: Port device team_slave_1 added 14:09:38 executing program 3: r0 = openat$urandom(0xffffffffffffff9c, &(0x7f0000000080)='/dev/urandom\x00', 0x0, 0x0) read(r0, 0x0, 0x0) pipe2(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x18c800) ioctl$KVM_GET_DEBUGREGS(r1, 0x8080aea1, &(0x7f0000000100)) write(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f0000000440)={0x2, 0x70, 0xb8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0) r2 = socket(0x10, 0x8000000803, 0x0) fallocate(r2, 0x14, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 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, 0x0, 0x400}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$netlink(0x10, 0x3, 0x0) r3 = socket$inet6(0xa, 0x2, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) connect$inet6(r3, &(0x7f0000000000)={0xa, 0x0, 0x0, @mcast1, 0x2}, 0x1c) connect$inet6(r3, &(0x7f0000003a40)={0xa, 0x4e24, 0x0, @ipv4={[], [], @loopback}}, 0x1e) sendmmsg(r3, &(0x7f00000092c0), 0x4ff, 0xbb8) [ 57.172045][ T8228] chnl_net:caif_netlink_parms(): no params data found [ 57.182645][ T8231] IPVS: ftp: loaded support on port[0] = 21 14:09:38 executing program 4: syz_emit_ethernet(0x76, &(0x7f0000000040)={@local, @link_local, [], {@ipv4={0x800, {{0x15, 0x4, 0x0, 0x0, 0x68, 0x0, 0x0, 0x0, 0x6, 0x0, @remote, @remote, {[@generic={0x0, 0xb, "5744844023e0e039fa"}, @noop, @generic={0x0, 0xa, "4fb320e9d8bbf9c3"}, @ssrr={0x89, 0x27, 0x0, [@empty, @remote, @empty, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast, @loopback, @empty, @rand_addr, @multicast2]}]}}, @tcp={{0x0, 0x0, 0x41424344, 0x42424242, 0x0, 0x0, 0x5}}}}}}, 0x0) [ 57.294505][ T8225] device hsr_slave_0 entered promiscuous mode [ 57.322670][ T8225] device hsr_slave_1 entered promiscuous mode [ 57.436750][ T8228] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.447279][ T8233] IPVS: ftp: loaded support on port[0] = 21 [ 57.451884][ T8228] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.461136][ T8228] device bridge_slave_0 entered promiscuous mode [ 57.514367][ T8228] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.521418][ T8228] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.542736][ T8228] device bridge_slave_1 entered promiscuous mode [ 57.587123][ T8228] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.616383][ T8228] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.639949][ T8235] IPVS: ftp: loaded support on port[0] = 21 14:09:38 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000180)='pagemap\x00') mmap(&(0x7f0000000000/0xae0000)=nil, 0xae0000, 0x0, 0x4d031, 0xffffffffffffffff, 0x0) pread64(r0, &(0x7f0000e3e000)=""/8, 0xffd8, 0x103f00) [ 57.687839][ T8225] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.776291][ T8225] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.854614][ T8225] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.913299][ T8237] IPVS: ftp: loaded support on port[0] = 21 [ 57.925601][ T8228] team0: Port device team_slave_0 added [ 57.940398][ T8225] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.018926][ T8228] team0: Port device team_slave_1 added [ 58.113497][ T8228] device hsr_slave_0 entered promiscuous mode [ 58.162934][ T8228] device hsr_slave_1 entered promiscuous mode [ 58.201955][ T8228] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.228834][ T8231] chnl_net:caif_netlink_parms(): no params data found [ 58.239654][ T8233] chnl_net:caif_netlink_parms(): no params data found [ 58.359088][ T8228] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.387478][ T8228] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.455781][ T8228] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 58.516621][ T8228] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 58.577829][ T8237] chnl_net:caif_netlink_parms(): no params data found [ 58.606142][ T8231] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.613727][ T8231] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.621289][ T8231] device bridge_slave_0 entered promiscuous mode [ 58.629309][ T8233] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.637194][ T8233] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.645257][ T8233] device bridge_slave_0 entered promiscuous mode [ 58.655337][ T8233] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.663164][ T8233] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.670893][ T8233] device bridge_slave_1 entered promiscuous mode [ 58.691382][ T8231] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.698801][ T8231] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.706558][ T8231] device bridge_slave_1 entered promiscuous mode [ 58.739953][ T8231] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.752502][ T8231] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.765524][ T8235] chnl_net:caif_netlink_parms(): no params data found [ 58.779551][ T8233] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.806694][ T8225] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.825271][ T8233] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.848584][ T8231] team0: Port device team_slave_0 added [ 58.860426][ T8237] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.868457][ T8237] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.876466][ T8237] device bridge_slave_0 entered promiscuous mode [ 58.887882][ T8237] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.895588][ T8237] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.903643][ T8237] device bridge_slave_1 entered promiscuous mode [ 58.928053][ T8225] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.936530][ T8231] team0: Port device team_slave_1 added [ 58.952969][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.961208][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.970261][ T8235] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.977540][ T8235] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.985288][ T8235] device bridge_slave_0 entered promiscuous mode [ 58.995090][ T8237] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.004595][ T8235] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.011641][ T8235] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.020124][ T8235] device bridge_slave_1 entered promiscuous mode [ 59.033106][ T8233] team0: Port device team_slave_0 added [ 59.045656][ T8237] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.073146][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.082166][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.090499][ T8243] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.097747][ T8243] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.108037][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.117994][ T8233] team0: Port device team_slave_1 added [ 59.184652][ T8231] device hsr_slave_0 entered promiscuous mode [ 59.242409][ T8231] device hsr_slave_1 entered promiscuous mode [ 59.282622][ T8231] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.302998][ T8237] team0: Port device team_slave_0 added [ 59.310100][ T8235] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.321355][ T8235] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.343931][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.352845][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.361156][ T8243] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.368257][ T8243] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.377100][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.386333][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.396208][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.405080][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.413807][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.422665][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.431305][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.439957][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.453566][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.463628][ T8237] team0: Port device team_slave_1 added [ 59.498668][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.507023][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.533788][ T8233] device hsr_slave_0 entered promiscuous mode [ 59.572574][ T8233] device hsr_slave_1 entered promiscuous mode [ 59.611938][ T8233] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.674530][ T8237] device hsr_slave_0 entered promiscuous mode [ 59.722174][ T8237] device hsr_slave_1 entered promiscuous mode [ 59.781985][ T8237] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.791920][ T8225] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.819082][ T8235] team0: Port device team_slave_0 added [ 59.860191][ T8235] team0: Port device team_slave_1 added [ 59.870016][ T8228] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.886847][ T8233] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.936441][ T8233] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 60.044874][ T8235] device hsr_slave_0 entered promiscuous mode [ 60.072107][ T8235] device hsr_slave_1 entered promiscuous mode [ 60.121965][ T8235] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.133215][ T8231] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.196435][ T8233] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 60.257378][ T8233] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 60.315762][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.324866][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.333157][ T8237] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 60.393637][ T8231] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.438996][ T8228] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.450659][ T8225] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.463946][ T8237] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 60.483877][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.491570][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.500091][ T8231] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.564133][ T8231] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.612612][ T8237] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 60.654093][ T8237] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 60.708076][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.717405][ T8243] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.732846][ T8243] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.742668][ T8243] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.777446][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.786507][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.795210][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.804412][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.811469][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.819671][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.828432][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.837009][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.845600][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.871068][ T8228] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.882912][ T8228] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.895017][ T8235] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 60.954280][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.962459][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.970992][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.984165][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.997332][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 166.011765][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 166.018771][ C1] (detected by 1, t=10502 jiffies, g=6489, q=61) [ 166.025180][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953744-4294943241), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 166.038539][ C1] kworker/1:2 R running task 27528 2724 2 0x80004008 [ 166.046454][ C1] Workqueue: events linkwatch_event [ 166.051656][ C1] Call Trace: [ 166.054952][ C1] [ 166.057809][ C1] sched_show_task+0x40f/0x560 [ 166.062591][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 166.067884][ C1] update_process_times+0x12d/0x180 [ 166.073086][ C1] tick_sched_timer+0x263/0x420 [ 166.077937][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.083480][ C1] __hrtimer_run_queues+0x403/0x840 [ 166.088700][ C1] hrtimer_interrupt+0x38c/0xda0 [ 166.093644][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.098922][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 166.104550][ C1] apic_timer_interrupt+0xf/0x20 [ 166.109475][ C1] [ 166.112402][ C1] RIP: 0010:free_thread_stack+0x133/0x590 [ 166.118111][ C1] Code: 00 ea ff ff 48 01 c7 be 03 00 00 00 e8 06 a2 60 00 e9 5d 04 00 00 e8 5c 2d 2e 00 48 89 df 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 [ 166.137726][ C1] RSP: 0018:ffffc9000785f700 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.146144][ C1] RAX: 0000000000000001 RBX: ffffea00024fa2c0 RCX: 0000000000000000 [ 166.154104][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00024fa2c0 [ 166.162079][ C1] RBP: ffffc9000785f738 R08: 000000000003a768 R09: fffffbfff120248a [ 166.170038][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88809219f1a0 [ 166.178017][ C1] R13: dffffc0000000000 R14: 1ffff11012433e34 R15: ffff88809934d668 [ 166.186029][ C1] put_task_stack+0xa3/0x130 [ 166.190633][ C1] finish_task_switch+0x3f1/0x550 [ 166.195668][ C1] __schedule+0x9a8/0xcc0 [ 166.200010][ C1] ? ___preempt_schedule+0x16/0x18 [ 166.205467][ C1] preempt_schedule+0xdb/0x120 [ 166.210225][ C1] ___preempt_schedule+0x16/0x18 [ 166.215175][ C1] ? vprintk_emit+0x2fe/0x3a0 [ 166.219856][ C1] ? vprintk_emit+0x368/0x3a0 [ 166.225827][ C1] vprintk_emit+0x36d/0x3a0 [ 166.230324][ C1] vprintk_default+0x28/0x30 [ 166.234903][ C1] vprintk_func+0x158/0x170 [ 166.239401][ C1] printk+0x62/0x8d [ 166.243200][ C1] ? addrconf_notify+0xd37/0x3c90 [ 166.248209][ C1] ? addrconf_notify+0x779/0x3c90 [ 166.253225][ C1] addrconf_notify+0x2c8d/0x3c90 [ 166.258169][ C1] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 166.263451][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 166.268811][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 166.274379][ C1] ? trace_hardirqs_on+0x74/0x80 [ 166.279304][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 166.284664][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 166.290196][ C1] ? tls_dev_event+0x619/0xc00 [ 166.294951][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 166.300484][ C1] ? ip6mr_device_event+0x1ee/0x210 [ 166.305701][ C1] raw_notifier_call_chain+0xec/0x190 [ 166.311091][ C1] netdev_state_change+0x147/0x1f0 [ 166.316204][ C1] linkwatch_do_dev+0x10e/0x160 [ 166.321052][ C1] __linkwatch_run_queue+0x446/0x730 [ 166.326344][ C1] linkwatch_event+0x4c/0x60 [ 166.330925][ C1] process_one_work+0x7ef/0x10d0 [ 166.335864][ C1] worker_thread+0xc01/0x1630 [ 166.340563][ C1] kthread+0x332/0x350 [ 166.344633][ C1] ? rcu_lock_release+0x30/0x30 [ 166.349475][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.354053][ C1] ret_from_fork+0x24/0x30 [ 166.358486][ C1] rcu: rcu_preempt kthread starved for 10536 jiffies! g6489 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.369568][ C1] rcu: RCU grace-period kthread stack dump: [ 166.375451][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.383339][ C1] Call Trace: [ 166.386623][ C1] __schedule+0x9a0/0xcc0 [ 166.390959][ C1] schedule+0x181/0x210 [ 166.395125][ C1] schedule_timeout+0x14f/0x240 [ 166.399967][ C1] ? run_local_timers+0x120/0x120 [ 166.404982][ C1] rcu_gp_kthread+0xed8/0x1770 [ 166.409741][ C1] kthread+0x332/0x350 [ 166.413795][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 166.418913][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.423528][ C1] ret_from_fork+0x24/0x30