[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.432103][ T25] audit: type=1800 audit(1575401388.060:25): pid=7996 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.451863][ T25] audit: type=1800 audit(1575401388.060:26): pid=7996 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.513482][ T25] audit: type=1800 audit(1575401388.060:27): pid=7996 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 '10.128.10.17' (ECDSA) to the list of known hosts. 2019/12/03 19:29:55 fuzzer started 2019/12/03 19:29:57 dialing manager at 10.128.0.26:42111 2019/12/03 19:29:57 syscalls: 2689 2019/12/03 19:29:57 code coverage: enabled 2019/12/03 19:29:57 comparison tracing: enabled 2019/12/03 19:29:57 extra coverage: extra coverage is not supported by the kernel 2019/12/03 19:29:57 setuid sandbox: enabled 2019/12/03 19:29:57 namespace sandbox: enabled 2019/12/03 19:29:57 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 19:29:57 fault injection: enabled 2019/12/03 19:29:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 19:29:57 net packet injection: enabled 2019/12/03 19:29:57 net device setup: enabled 2019/12/03 19:29:57 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 19:29:57 devlink PCI setup: PCI device 0000:00:10.0 is not available 19:29:58 executing program 0: perf_event_open(&(0x7f0000000440)={0x2, 0x70, 0x5aeb, 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_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$vsock_stream(0x28, 0x1, 0x0) ioctl$sock_SIOCADDDLCI(r0, 0x8980, &(0x7f0000000080)={'ip6_vti0\x00'}) 19:29:58 executing program 1: socketpair$unix(0x1, 0x8000000000001, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff0000002e003304a3990000000000000800000096b265bfa9eb9ae18f417c662f08fe9306000800000023d183cdbc56635ffd6e8f9f1657b646baae84605b1d47f8d005577390"], 0x16f}}, 0x0) r1 = socket(0x10, 0x80002, 0x0) sendmmsg$alg(r1, &(0x7f0000000140)=[{0x0, 0x0, &(0x7f0000000100), 0x0, &(0x7f0000000100)}], 0x492492492492805, 0x0) syzkaller login: [ 53.071717][ T8162] IPVS: ftp: loaded support on port[0] = 21 [ 53.239826][ T8162] chnl_net:caif_netlink_parms(): no params data found [ 53.255691][ T8165] IPVS: ftp: loaded support on port[0] = 21 19:29:58 executing program 2: r0 = socket$pppoe(0x18, 0x1, 0x0) connect$pppoe(r0, &(0x7f0000000000)={0x18, 0x0, {0x3, @local, 'ip6_vti0\x00'}}, 0x1e) r1 = socket$pppoe(0x18, 0x1, 0x0) r2 = socket$pppoe(0x18, 0x1, 0x0) connect$pppoe(r2, &(0x7f0000000000)={0x18, 0x0, {0x3, @local, 'ip6_vti0\x00'}}, 0x1e) dup2(r1, r2) connect$pppoe(r0, &(0x7f0000000080)={0x18, 0x0, {0x0, @local, 'ip_vti0\x00'}}, 0x1e) [ 53.304507][ T8162] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.311611][ T8162] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.320506][ T8162] device bridge_slave_0 entered promiscuous mode [ 53.338789][ T8162] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.358892][ T8162] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.385662][ T8162] device bridge_slave_1 entered promiscuous mode [ 53.457868][ T8162] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.488950][ T8162] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.501000][ T8165] chnl_net:caif_netlink_parms(): no params data found [ 53.525326][ T8162] team0: Port device team_slave_0 added [ 53.540530][ T8168] IPVS: ftp: loaded support on port[0] = 21 [ 53.553565][ T8162] team0: Port device team_slave_1 added [ 53.580620][ T8165] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.589799][ T8165] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.597778][ T8165] device bridge_slave_0 entered promiscuous mode 19:29:59 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$netlink(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x2cd, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000340)=@newlink={0x38, 0x10, 0x705, 0x0, 0x0, {0x0, 0x0, 0x0, r3}, [@IFLA_LINKINFO={0x18, 0x12, @vti={{0x8, 0x1, 'vti\x00'}, {0xc, 0x2, [@vti_common_policy=[@IFLA_VTI_LINK={0x8, 0x1, r3}]]}}}]}, 0x38}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000002c0)=@ipv4_newaddr={0x34, 0x14, 0x1, 0x0, 0x0, {0x2, 0x0, 0x0, 0x0, r3}, [@IFA_LOCAL={0x8, 0x2, @multicast1}, @IFA_CACHEINFO={0x14, 0x6, {0x7, 0x9}}]}, 0x34}}, 0x0) [ 53.655666][ T8162] device hsr_slave_0 entered promiscuous mode [ 53.693938][ T8162] device hsr_slave_1 entered promiscuous mode [ 53.733919][ T8165] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.741009][ T8165] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.763849][ T8165] device bridge_slave_1 entered promiscuous mode [ 53.804135][ T8165] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 19:29:59 executing program 4: fanotify_init(0x0, 0x0) syz_open_procfs(0x0, 0x0) syz_open_dev$dmmidi(0x0, 0x0, 0x0) ioctl$KDSKBMETA(0xffffffffffffffff, 0x4b63, 0x0) perf_event_open(&(0x7f00000000c0)={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_bp={0x0, 0x1a}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$TIPC_GROUP_JOIN(0xffffffffffffffff, 0x10f, 0x87, 0x0, 0x0) getsockopt$inet_sctp6_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000180), 0x0) shmat(0x0, &(0x7f0000ffc000/0x3000)=nil, 0xd48a5a656600d03e) ioctl$USBDEVFS_CLAIM_PORT(0xffffffffffffffff, 0x80045518, &(0x7f0000000280)) ioctl$PPPIOCSDEBUG(0xffffffffffffffff, 0x40047440, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) socket$inet(0x2, 0x4000000805, 0x0) r1 = socket$inet_sctp(0x2, 0x5, 0x84) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(0xffffffffffffffff, 0x84, 0x6c, &(0x7f000059aff8)={r2}, 0x0) ioctl$TUNSETLINK(0xffffffffffffffff, 0x400454cd, 0x7fff) ioctl$sock_ifreq(r0, 0x8991, &(0x7f00000000c0)={'bond0\x00\x16\b\xea\xff\xff\x80\x00\x06\x02\xff', @ifru_names='bond_slave_1\x00t\x00'}) [ 53.848674][ T8165] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.870525][ T8170] IPVS: ftp: loaded support on port[0] = 21 [ 53.951490][ T8162] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.008079][ T8165] team0: Port device team_slave_0 added [ 54.030520][ T8162] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.039556][ T8172] IPVS: ftp: loaded support on port[0] = 21 [ 54.085526][ T8165] team0: Port device team_slave_1 added [ 54.093311][ T8162] netdevsim netdevsim0 netdevsim2: renamed from eth2 19:29:59 executing program 5: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x1, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x5, 0x0, 0x0, 0x0, 0x69, 0x10, 0x54}, [@ldst={0x7, 0x3, 0x4}]}, &(0x7f0000003ff6)='G\x00', 0x5, 0xfd90, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x1c4, 0x10, &(0x7f0000000000), 0x1dd}, 0x48) [ 54.239496][ T8162] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.330679][ T8168] chnl_net:caif_netlink_parms(): no params data found [ 54.385424][ T8165] device hsr_slave_0 entered promiscuous mode [ 54.423388][ T8165] device hsr_slave_1 entered promiscuous mode [ 54.484024][ T8165] debugfs: Directory 'hsr0' with parent '/' already present! [ 54.548615][ T8175] IPVS: ftp: loaded support on port[0] = 21 [ 54.564017][ T8170] chnl_net:caif_netlink_parms(): no params data found [ 54.587748][ T8168] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.595270][ T8168] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.603288][ T8168] device bridge_slave_0 entered promiscuous mode [ 54.612548][ T8168] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.622228][ T8168] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.630361][ T8168] device bridge_slave_1 entered promiscuous mode [ 54.676509][ T8168] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.708863][ T8170] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.716741][ T8170] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.725306][ T8170] device bridge_slave_0 entered promiscuous mode [ 54.733456][ T8168] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.742679][ T8170] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.750342][ T8170] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.758377][ T8170] device bridge_slave_1 entered promiscuous mode [ 54.766065][ T8165] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 54.827501][ T8165] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 54.894629][ T8165] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 54.977760][ T8165] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.038546][ T8170] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.055503][ T8168] team0: Port device team_slave_0 added [ 55.065221][ T8170] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.098416][ T8168] team0: Port device team_slave_1 added [ 55.106559][ T8170] team0: Port device team_slave_0 added [ 55.116765][ T8170] team0: Port device team_slave_1 added [ 55.185977][ T8168] device hsr_slave_0 entered promiscuous mode [ 55.233350][ T8168] device hsr_slave_1 entered promiscuous mode [ 55.273109][ T8168] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.321294][ T8172] chnl_net:caif_netlink_parms(): no params data found [ 55.385780][ T8170] device hsr_slave_0 entered promiscuous mode [ 55.454054][ T8170] device hsr_slave_1 entered promiscuous mode [ 55.493239][ T8170] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.506579][ T8162] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.546108][ T8162] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.559709][ T8175] chnl_net:caif_netlink_parms(): no params data found [ 55.568430][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.577801][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.614690][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.624001][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.633699][ T3885] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.640859][ T3885] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.648719][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.658367][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.667372][ T3885] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.674545][ T3885] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.686583][ T8170] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 55.768031][ T8170] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 55.815081][ T8170] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 55.855545][ T8170] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 55.898015][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.931219][ T8175] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.940075][ T8175] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.949158][ T8175] device bridge_slave_0 entered promiscuous mode [ 55.981064][ T8172] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.988323][ T8172] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.996864][ T8172] device bridge_slave_0 entered promiscuous mode [ 56.004899][ T8175] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.011948][ T8175] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.024267][ T8175] device bridge_slave_1 entered promiscuous mode [ 56.031422][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.040287][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.049871][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.058412][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.067337][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.076411][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.085722][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.094198][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.102648][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.110503][ T8168] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 56.155049][ T8168] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 56.227436][ T8172] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.234689][ T8172] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.243080][ T8172] device bridge_slave_1 entered promiscuous mode [ 56.270896][ T8175] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.293180][ T8168] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 56.325082][ T8168] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 56.377021][ T8172] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.389900][ T8162] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.403645][ T8162] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.413084][ T8175] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.433817][ T8175] team0: Port device team_slave_0 added [ 56.450141][ T8175] team0: Port device team_slave_1 added [ 56.458039][ T8176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.467423][ T8176] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.477537][ T8172] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.497368][ T8172] team0: Port device team_slave_0 added [ 56.511770][ T8172] team0: Port device team_slave_1 added [ 56.567399][ T8175] device hsr_slave_0 entered promiscuous mode [ 56.623668][ T8175] device hsr_slave_1 entered promiscuous mode [ 56.683182][ T8175] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.701896][ T8170] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.746435][ T8172] device hsr_slave_0 entered promiscuous mode [ 56.794209][ T8172] device hsr_slave_1 entered promiscuous mode [ 56.833404][ T8172] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.869051][ T8165] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.891863][ T8170] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.908677][ T8175] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 56.954579][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.962093][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.971527][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.979718][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.987550][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.996264][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.004829][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.011856][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.038707][ T8162] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.053221][ T8175] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 57.086337][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 57.094608][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.103479][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.111762][ T2725] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.118853][ T2725] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.126675][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.135424][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.143099][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.153618][ T8172] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 57.195955][ T8172] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 57.235709][ T8175] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 57.278676][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.293684][ T8172] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 57.337647][ T8165] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.347597][ T8175] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 162.372892][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 162.379900][ C0] (detected by 0, t=10502 jiffies, g=6353, q=175) [ 162.386392][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953377-4294942874), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 162.399750][ C0] rcu_preempt R running task 28992 10 2 0x80004008 [ 162.407643][ C0] Call Trace: [ 162.410915][ C0] [ 162.413776][ C0] sched_show_task+0x40f/0x560 [ 162.418541][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 162.423821][ C0] update_process_times+0x12d/0x180 [ 162.429016][ C0] tick_sched_timer+0x263/0x420 [ 162.433856][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 162.439390][ C0] __hrtimer_run_queues+0x403/0x840 [ 162.444594][ C0] hrtimer_interrupt+0x38c/0xda0 [ 162.449546][ C0] ? debug_smp_processor_id+0x9/0x20 [ 162.454841][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 162.460376][ C0] apic_timer_interrupt+0xf/0x20 [ 162.465294][ C0] [ 162.468252][ C0] RIP: 0010:mod_memcg_page_state+0x8/0x190 [ 162.474044][ C0] Code: eb 0c e8 0b 29 2e 00 eb 05 e8 04 29 2e 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 <41> 54 53 41 89 f6 48 89 fb e8 da 28 2e 00 48 83 c3 38 48 89 d8 48 [ 162.493635][ C0] RSP: 0018:ffffc90000d0fc28 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 162.502037][ C0] RAX: 1ffff11014025c41 RBX: ffff8880a012e208 RCX: 0000000000000000 [ 162.510003][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002811180 [ 162.517964][ C0] RBP: ffffc90000d0fc38 R08: 000000000003a768 R09: ffffed10145ef27f [ 162.525927][ C0] R10: ffffed10145ef27f R11: 0000000000000000 R12: ffff8880a012e2a0 [ 162.533886][ C0] R13: dffffc0000000000 R14: 1ffff11014025c54 R15: ffff8880a2f793e8 [ 162.541868][ C0] free_thread_stack+0x168/0x590 [ 162.546796][ C0] put_task_stack+0xa3/0x130 [ 162.551374][ C0] finish_task_switch+0x3f1/0x550 [ 162.556392][ C0] __schedule+0x9a8/0xcc0 [ 162.560722][ C0] schedule+0x181/0x210 [ 162.564870][ C0] schedule_timeout+0x14f/0x240 [ 162.569706][ C0] ? run_local_timers+0x120/0x120 [ 162.574720][ C0] rcu_gp_kthread+0xed8/0x1770 [ 162.579481][ C0] kthread+0x332/0x350 [ 162.583535][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 162.588633][ C0] ? kthread_blkcg+0xe0/0xe0 [ 162.593211][ C0] ret_from_fork+0x24/0x30 [ 162.597658][ C0] rcu: rcu_preempt kthread starved for 10524 jiffies! g6353 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 162.608758][ C0] rcu: RCU grace-period kthread stack dump: [ 162.614645][ C0] rcu_preempt R running task 28992 10 2 0x80004008 [ 162.622531][ C0] Call Trace: [ 162.625803][ C0] [ 162.628649][ C0] sched_show_task+0x40f/0x560 [ 162.633409][ C0] rcu_check_gp_kthread_starvation+0x170/0x1b0 [ 162.639553][ C0] rcu_sched_clock_irq+0x17d3/0x1ad0 [ 162.644836][ C0] update_process_times+0x12d/0x180 [ 162.650023][ C0] tick_sched_timer+0x263/0x420 [ 162.654864][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 162.660402][ C0] __hrtimer_run_queues+0x403/0x840 [ 162.665610][ C0] hrtimer_interrupt+0x38c/0xda0 [ 162.670557][ C0] ? debug_smp_processor_id+0x9/0x20 [ 162.675840][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 162.681377][ C0] apic_timer_interrupt+0xf/0x20 [ 162.686297][ C0] [ 162.689228][ C0] RIP: 0010:mod_memcg_page_state+0x8/0x190 [ 162.695020][ C0] Code: eb 0c e8 0b 29 2e 00 eb 05 e8 04 29 2e 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 <41> 54 53 41 89 f6 48 89 fb e8 da 28 2e 00 48 83 c3 38 48 89 d8 48 [ 162.714613][ C0] RSP: 0018:ffffc90000d0fc28 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 162.723019][ C0] RAX: 1ffff11014025c41 RBX: ffff8880a012e208 RCX: 0000000000000000 [ 162.730977][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002811180 [ 162.738935][ C0] RBP: ffffc90000d0fc38 R08: 000000000003a768 R09: ffffed10145ef27f [ 162.746893][ C0] R10: ffffed10145ef27f R11: 0000000000000000 R12: ffff8880a012e2a0 [ 162.754855][ C0] R13: dffffc0000000000 R14: 1ffff11014025c54 R15: ffff8880a2f793e8 [ 162.762957][ C0] free_thread_stack+0x168/0x590 [ 162.767904][ C0] put_task_stack+0xa3/0x130 [ 162.772501][ C0] finish_task_switch+0x3f1/0x550 [ 162.777536][ C0] __schedule+0x9a8/0xcc0 [ 162.781873][ C0] schedule+0x181/0x210 [ 162.786024][ C0] schedule_timeout+0x14f/0x240 [ 162.790892][ C0] ? run_local_timers+0x120/0x120 [ 162.795938][ C0] rcu_gp_kthread+0xed8/0x1770 [ 162.800743][ C0] kthread+0x332/0x350 [ 162.804837][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 162.810058][ C0] ? kthread_blkcg+0xe0/0xe0 [ 162.814661][ C0] ret_from_fork+0x24/0x30