[ 46.405154][ T23] audit: type=1800 audit(1575449397.005:25): pid=8032 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.424690][ T23] audit: type=1800 audit(1575449397.005:26): pid=8032 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.458845][ T23] audit: type=1800 audit(1575449397.015:27): pid=8032 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 46.498844][ T23] audit: type=1800 audit(1575449397.015:28): pid=8032 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. 2019/12/04 08:50:04 fuzzer started 2019/12/04 08:50:06 dialing manager at 10.128.0.26:36481 2019/12/04 08:50:06 syscalls: 2691 2019/12/04 08:50:06 code coverage: enabled 2019/12/04 08:50:06 comparison tracing: enabled 2019/12/04 08:50:06 extra coverage: extra coverage is not supported by the kernel 2019/12/04 08:50:06 setuid sandbox: enabled 2019/12/04 08:50:06 namespace sandbox: enabled 2019/12/04 08:50:06 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 08:50:06 fault injection: enabled 2019/12/04 08:50:06 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 08:50:06 net packet injection: enabled 2019/12/04 08:50:06 net device setup: enabled 2019/12/04 08:50:06 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 08:50:06 devlink PCI setup: PCI device 0000:00:10.0 is not available 08:50:07 executing program 0: mbind(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x3, &(0x7f00000000c0)=0x8000000000003, 0x3, 0x0) mbind(&(0x7f0000ffe000/0x1000)=nil, 0x1000, 0x2, &(0x7f0000000000)=0x800000003ff, 0x8, 0x0) mbind(&(0x7f0000ffb000/0x3000)=nil, 0x3007, 0x2, &(0x7f0000000400)=0x9, 0x8, 0x0) 08:50:07 executing program 1: perf_event_open(&(0x7f0000000000)={0x2, 0x70, 0x3e7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20000000000001f, 0x0, 0x53a, 0x3ff, 0x0, 0x0, 0x0, 0x2000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x3, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x4}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000500)='/dev/kvm\x00', 0x40000, 0x0) bind$alg(0xffffffffffffffff, &(0x7f0000000180)={0x26, 'hash\x00', 0x0, 0x0, 'crc32-generic\x00'}, 0x58) syz_open_dev$swradio(&(0x7f0000000000)='/dev/swradio#\x00', 0x0, 0x2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = socket(0x1e, 0x4, 0x0) setsockopt$RDS_CONG_MONITOR(0xffffffffffffffff, 0x114, 0x6, &(0x7f0000000140), 0xfffffffffffffe88) setsockopt$packet_tx_ring(r1, 0x10f, 0x87, &(0x7f00000000c0)=@req={0x30a, 0x0, 0x0, 0x7}, 0x10) read(r0, &(0x7f0000000400)=""/168, 0x41c) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x3, 0x0) write$FUSE_NOTIFY_INVAL_ENTRY(0xffffffffffffffff, &(0x7f0000000540)=ANY=[@ANYBLOB="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"], 0x2b) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000140)={'ip6tnl0\x00', 0x0}) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000000c0)=@newlink={0x34, 0x10, 0x1, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@IFLA_LINKINFO={0x14, 0x12, @ip6ip6={{0xc, 0x1, 'ip6tnl\x00'}, {0x4}}}]}, 0x34}}, 0x0) r5 = mq_open(&(0x7f00000004c0)='ip6tnl\x00', 0x0, 0x0, 0x0) mq_notify(r5, &(0x7f00000001c0)) sendmsg$TIPC_CMD_GET_NETID(0xffffffffffffffff, 0x0, 0x0) mq_timedsend(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(0xffffffffffffffff, 0x84, 0x6f, 0x0, 0x0) syz_extract_tcp_res(0x0, 0x0, 0x0) sendmsg$kcm(0xffffffffffffffff, 0x0, 0x0) socket$inet6_udp(0xa, 0x2, 0x0) socket$packet(0x11, 0x0, 0x300) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0) bind$packet(0xffffffffffffffff, 0x0, 0x0) getsockname$packet(0xffffffffffffffff, 0x0, 0x0) ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0) syz_open_procfs(0x0, 0x0) socket$netlink(0x10, 0x3, 0x0) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) bpf$PROG_LOAD(0x5, 0x0, 0x0) ioctl$SNDRV_RAWMIDI_IOCTL_DROP(0xffffffffffffffff, 0x40045730, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$MAP_UPDATE_ELEM(0x2, 0x0, 0x0) bpf$MAP_GET_NEXT_KEY(0x4, 0x0, 0x0) mq_notify(0xffffffffffffffff, 0x0) setsockopt$inet_udp_encap(0xffffffffffffffff, 0x11, 0x64, 0x0, 0x0) syzkaller login: [ 57.006748][ T8197] IPVS: ftp: loaded support on port[0] = 21 08:50:07 executing program 2: r0 = socket$inet6(0x10, 0x3, 0x0) sendmsg(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000002000)=[{&(0x7f000000dfaa)="5500000018007f6800fe01b2a4a280930a060001fe800002120000003900090035005028010000001900054003000000000022dc1338d54400009b84136ef75afb83de4411000500c43ab8220000060cec4fab91d4", 0x55}], 0x1}, 0x0) [ 57.159229][ T8197] chnl_net:caif_netlink_parms(): no params data found [ 57.180800][ T8200] IPVS: ftp: loaded support on port[0] = 21 [ 57.291110][ T8197] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.298683][ T8197] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.320070][ T8197] device bridge_slave_0 entered promiscuous mode [ 57.334623][ T8202] IPVS: ftp: loaded support on port[0] = 21 [ 57.341853][ T8197] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.352700][ T8197] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.360736][ T8197] device bridge_slave_1 entered promiscuous mode [ 57.391950][ T8197] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.410271][ T8197] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.455712][ T8197] team0: Port device team_slave_0 added 08:50:08 executing program 3: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f00000ba000)={0x9, 0x4, &(0x7f0000346fc8)=@framed={{}, [@alu={0x8000000201a7f19, 0x0, 0x201a7fa6, 0x7, 0x1, 0x2c}]}, &(0x7f0000000040)='syzkaller\x00', 0x1, 0xfb, &(0x7f0000002880)=""/251, 0x0, 0x0, [], 0x0, 0xd}, 0x48) [ 57.505426][ T8197] team0: Port device team_slave_1 added [ 57.529485][ T8200] chnl_net:caif_netlink_parms(): no params data found [ 57.592395][ T8197] device hsr_slave_0 entered promiscuous mode [ 57.649972][ T8197] device hsr_slave_1 entered promiscuous mode [ 57.724213][ T8205] IPVS: ftp: loaded support on port[0] = 21 08:50:08 executing program 4: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5) ioctl$sock_inet_SIOCGIFNETMASK(r0, 0x400443c9, 0x0) [ 57.783394][ T8200] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.791838][ T8200] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.800885][ T8200] device bridge_slave_0 entered promiscuous mode [ 57.828005][ T8202] chnl_net:caif_netlink_parms(): no params data found [ 57.840926][ T8200] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.848000][ T8200] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.857643][ T8200] device bridge_slave_1 entered promiscuous mode [ 57.866089][ T8197] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.946415][ T8200] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.969416][ T8197] netdevsim netdevsim0 netdevsim1: renamed from eth1 08:50:08 executing program 5: r0 = socket$inet6(0xa, 0x803, 0x2) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @dev, 0x7}, 0x1c) setsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000340)={{{@in=@loopback, @in6=@mcast1, 0x0, 0x0, 0x0, 0x0, 0xa}, {}, {}, 0x0, 0x0, 0x80000000000001}, {{@in6=@empty, 0x0, 0x3c}, 0x2, @in=@rand_addr=0x60, 0x0, 0x4, 0x0, 0x4}}, 0xe8) r1 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000002c0)=ANY=[@ANYBLOB="380100001a000108000000000000000000000000000000000000400000000000ff01000000000000000000368400000100"/64, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB="00000000000000000000000000000000000000006c000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003f0000000000000000000000000000000000000000000000000000000000000000000000020001004d00000000000000480003006465666c61746500"/240], 0x138}}, 0x0) sendmmsg(r0, &(0x7f0000008440), 0x400000000000107, 0x0) [ 58.058632][ T8200] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.090677][ T8208] IPVS: ftp: loaded support on port[0] = 21 [ 58.099983][ T8197] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.151256][ T8197] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.202196][ T8202] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.209479][ T8202] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.216991][ T8202] device bridge_slave_0 entered promiscuous mode [ 58.227293][ T8202] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.234368][ T8202] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.242203][ T8202] device bridge_slave_1 entered promiscuous mode [ 58.259626][ T8210] IPVS: ftp: loaded support on port[0] = 21 [ 58.293695][ T8200] team0: Port device team_slave_0 added [ 58.302691][ T8202] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.314885][ T8202] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.338268][ T8200] team0: Port device team_slave_1 added [ 58.411586][ T8200] device hsr_slave_0 entered promiscuous mode [ 58.459218][ T8200] device hsr_slave_1 entered promiscuous mode [ 58.508990][ T8200] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.518258][ T8202] team0: Port device team_slave_0 added [ 58.526873][ T8202] team0: Port device team_slave_1 added [ 58.582152][ T8205] chnl_net:caif_netlink_parms(): no params data found [ 58.619892][ T8197] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.711485][ T8202] device hsr_slave_0 entered promiscuous mode [ 58.749191][ T8202] device hsr_slave_1 entered promiscuous mode [ 58.808872][ T8202] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.852020][ T8205] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.861918][ T8205] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.869778][ T8205] device bridge_slave_0 entered promiscuous mode [ 58.879881][ T8205] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.886922][ T8205] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.894521][ T8205] device bridge_slave_1 entered promiscuous mode [ 58.914044][ T8205] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.926964][ T8205] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.951206][ T8197] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.969121][ T8205] team0: Port device team_slave_0 added [ 58.977575][ T8205] team0: Port device team_slave_1 added [ 58.985755][ T8200] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.024433][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.032996][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.041928][ T8208] chnl_net:caif_netlink_parms(): no params data found [ 59.070373][ T8200] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.124225][ T8200] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.172280][ T8200] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.250996][ T8205] device hsr_slave_0 entered promiscuous mode [ 59.299120][ T8205] device hsr_slave_1 entered promiscuous mode [ 59.348817][ T8205] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.356397][ T8202] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.452983][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.464183][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.472631][ T2735] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.479834][ T2735] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.487956][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.497157][ T8202] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.552423][ T8208] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.559604][ T8208] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.567149][ T8208] device bridge_slave_0 entered promiscuous mode [ 59.587845][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.596783][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.607371][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.614459][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.629608][ T8202] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.661133][ T8202] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 59.700107][ T8208] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.707193][ T8208] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.714950][ T8208] device bridge_slave_1 entered promiscuous mode [ 59.732534][ T8208] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.754525][ T8210] chnl_net:caif_netlink_parms(): no params data found [ 59.772933][ T8214] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.782992][ T8208] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.816934][ T8205] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.877401][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.886400][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.895451][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.903797][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.913601][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.922065][ T2735] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.930367][ T8205] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.971116][ T8205] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 60.032437][ T8208] team0: Port device team_slave_0 added [ 60.038262][ T8205] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 60.095006][ T8197] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.107555][ T8197] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.120017][ T8208] team0: Port device team_slave_1 added [ 60.130034][ T8210] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.137077][ T8210] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.145552][ T8210] device bridge_slave_0 entered promiscuous mode [ 60.154475][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.163160][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.171948][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.180122][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.191013][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.219699][ T8210] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.226773][ T8210] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.235241][ T8210] device bridge_slave_1 entered promiscuous mode [ 60.311974][ T8208] device hsr_slave_0 entered promiscuous mode [ 60.359124][ T8208] device hsr_slave_1 entered promiscuous mode [ 60.428849][ T8208] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.443568][ T8210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.463295][ T3477] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.470796][ T3477] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.482849][ T8197] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.494758][ T8210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.557141][ T8210] team0: Port device team_slave_0 added [ 60.586861][ T8202] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.598190][ T8200] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.611060][ T8210] team0: Port device team_slave_1 added [ 60.617149][ T8208] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 165.658723][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 165.665715][ C1] (detected by 1, t=10502 jiffies, g=6105, q=68) [ 165.672114][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953721-4294943218), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 165.685462][ C1] syz-executor.0 R running task 31200 8219 8197 0x0000400e [ 165.693349][ C1] Call Trace: [ 165.696620][ C1] [ 165.699469][ C1] sched_show_task+0x40f/0x560 [ 165.704222][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 165.709498][ C1] update_process_times+0x12d/0x180 [ 165.714681][ C1] tick_sched_timer+0x263/0x420 [ 165.719531][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.725062][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.730256][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.735193][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.740464][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.745992][ C1] apic_timer_interrupt+0xf/0x20 [ 165.750908][ C1] [ 165.753836][ C1] RIP: 0010:free_thread_stack+0x16d/0x590 [ 165.759539][ C1] Code: c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 25 a0 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 00 43 80 3c 2e 00 <74> 08 4c 89 e7 e8 09 a0 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 [ 165.779733][ C1] RSP: 0018:ffffc900027a7e40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.788128][ C1] RAX: ffffffff81487433 RBX: ffff888088aa1e08 RCX: ffff88806be8a080 [ 165.796082][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002618200 [ 165.804149][ C1] RBP: ffffc900027a7e78 R08: dffffc0000000000 R09: fffffbfff1287a8d [ 165.812121][ C1] R10: fffffbfff1287a8d R11: 0000000000000000 R12: ffff888088aa1ea0 [ 165.820084][ C1] R13: dffffc0000000000 R14: 1ffff110111543d4 R15: ffff8880a8799628 [ 165.828067][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.833438][ C1] put_task_stack+0xa3/0x130 [ 165.838035][ C1] finish_task_switch+0x3f1/0x550 [ 165.843089][ C1] schedule_tail+0x20/0x1a0 [ 165.847597][ C1] ret_from_fork+0x8/0x30 [ 165.851918][ C1] RIP: 0033:0x45d049 [ 165.855800][ C1] Code: ff 48 85 f6 0f 84 d7 8c fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c ae 8c fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 [ 165.875396][ C1] RSP: 002b:00007f0a61046db0 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 165.883794][ C1] RAX: 0000000000000000 RBX: 00007f0a61047700 RCX: 000000000045d049 [ 165.891750][ C1] RDX: 00007f0a610479d0 RSI: 00007f0a61046db0 RDI: 00000000003d0f00 [ 165.899708][ C1] RBP: 00007fff725087f0 R08: 00007f0a61047700 R09: 00007f0a61047700 [ 165.907678][ C1] R10: 00007f0a610479d0 R11: 0000000000000202 R12: 0000000000000000 [ 165.915635][ C1] R13: 00007fff7250868f R14: 00007f0a610479c0 R15: 000000000075bfd4 [ 165.923611][ C1] rcu: rcu_preempt kthread starved for 10528 jiffies! g6105 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 165.934687][ C1] rcu: RCU grace-period kthread stack dump: [ 165.940555][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.948437][ C1] Call Trace: [ 165.951717][ C1] __schedule+0x9a0/0xcc0 [ 165.956039][ C1] schedule+0x181/0x210 [ 165.960186][ C1] schedule_timeout+0x14f/0x240 [ 165.965108][ C1] ? run_local_timers+0x120/0x120 [ 165.970118][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.974874][ C1] kthread+0x332/0x350 [ 165.978923][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.984017][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.988593][ C1] ret_from_fork+0x24/0x30