[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 47.434183][ T26] audit: type=1800 audit(1575416810.835:25): pid=8211 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 47.452985][ T26] audit: type=1800 audit(1575416810.835:26): pid=8211 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 47.482261][ T26] audit: type=1800 audit(1575416810.835:27): pid=8211 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 '10.128.15.209' (ECDSA) to the list of known hosts. 2019/12/03 23:47:01 fuzzer started 2019/12/03 23:47:03 dialing manager at 10.128.0.26:42111 2019/12/03 23:47:03 syscalls: 2689 2019/12/03 23:47:03 code coverage: enabled 2019/12/03 23:47:03 comparison tracing: enabled 2019/12/03 23:47:03 extra coverage: extra coverage is not supported by the kernel 2019/12/03 23:47:03 setuid sandbox: enabled 2019/12/03 23:47:03 namespace sandbox: enabled 2019/12/03 23:47:03 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 23:47:03 fault injection: enabled 2019/12/03 23:47:03 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 23:47:03 net packet injection: enabled 2019/12/03 23:47:03 net device setup: enabled 2019/12/03 23:47:03 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 23:47:03 devlink PCI setup: PCI device 0000:00:10.0 is not available 23:47:04 executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f00000000c0)="0800a1695e1dcfe87b1071") r1 = syz_open_dev$cec(&(0x7f0000000040)='/dev/cec#\x00', 0x1, 0x2) ioctl$IOC_PR_PREEMPT(r1, 0x40046109, &(0x7f0000000000)={0x31}) r2 = socket$inet_tcp(0x2, 0x1, 0x0) dup3(r2, r1, 0x0) 23:47:04 executing program 1: r0 = socket(0x10, 0x3, 0x0) close(r0) r1 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$sock_int(r1, 0x1, 0x7, &(0x7f0000000040)=0xfffffffffffffff8, 0x4) setsockopt$inet_tcp_int(r1, 0x6, 0x10000000013, &(0x7f0000d06000)=0x1, 0x4) r2 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r2, 0x1000008912, &(0x7f00000000c0)="0800a1695e1dcfe87b1071") setsockopt$SO_BINDTODEVICE(r1, 0x1, 0x19, &(0x7f0000000000)='veth1\x00', 0x10) connect$inet(r1, &(0x7f00000000c0)={0x2, 0x0, @loopback}, 0x10) setsockopt$inet_tcp_int(r1, 0x6, 0x4000000000013, &(0x7f0000000180), 0x4) write$nbd(r0, &(0x7f0000001100), 0x10) setsockopt$sock_int(r1, 0x1, 0x3c, &(0x7f0000000240)=0x1, 0x4) sendto$unix(r1, &(0x7f0000000040), 0xfd1b, 0x4004800, 0x0, 0x0) sendmsg$IPVS_CMD_GET_DAEMON(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000280)={0xfffffffffffffcfc}, 0x14}}, 0x0) syzkaller login: [ 61.470984][ T8376] IPVS: ftp: loaded support on port[0] = 21 23:47:05 executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) bind$netlink(r0, &(0x7f0000000000)={0x10, 0x0, 0x0, 0xc0000}, 0xc) getsockopt$netlink(r0, 0x10e, 0x9, &(0x7f00000002c0)=""/4096, &(0x7f00000000c0)=0x1000) [ 61.560113][ T8378] IPVS: ftp: loaded support on port[0] = 21 [ 61.718255][ T8376] chnl_net:caif_netlink_parms(): no params data found [ 61.766500][ T8381] IPVS: ftp: loaded support on port[0] = 21 [ 61.833965][ T8378] chnl_net:caif_netlink_parms(): no params data found [ 61.868662][ T8376] bridge0: port 1(bridge_slave_0) entered blocking state 23:47:05 executing program 3: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)={0xb, 0x81, 0x7, 0x5, 0x1}, 0x3c) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000400)={r0, &(0x7f0000000180), &(0x7f0000000240)}, 0x20) bpf$MAP_DELETE_ELEM(0x3, &(0x7f0000000200)={r0, &(0x7f0000000180)}, 0x10) [ 61.878219][ T8376] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.887665][ T8376] device bridge_slave_0 entered promiscuous mode [ 61.929471][ T8376] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.947867][ T8376] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.974017][ T8376] device bridge_slave_1 entered promiscuous mode [ 62.062925][ T8376] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.072137][ T8378] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.082912][ T8378] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.091400][ T8378] device bridge_slave_0 entered promiscuous mode [ 62.119022][ T8376] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.129792][ T8378] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.142117][ T8378] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.150628][ T8378] device bridge_slave_1 entered promiscuous mode 23:47:05 executing program 4: r0 = openat$udambuf(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/udmabuf\x00', 0x2) r1 = creat(&(0x7f0000000280)='./file0\x00', 0x0) ioctl$UDMABUF_CREATE(r0, 0x40187542, &(0x7f0000000100)={r1}) [ 62.177531][ T8376] team0: Port device team_slave_0 added [ 62.211803][ T8378] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.233420][ T8376] team0: Port device team_slave_1 added [ 62.239971][ T8381] chnl_net:caif_netlink_parms(): no params data found [ 62.265393][ T8378] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.293926][ T8385] IPVS: ftp: loaded support on port[0] = 21 23:47:05 executing program 5: r0 = openat$adsp1(0xffffffffffffff9c, &(0x7f0000000000)='/dev/adsp1\x00', 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) dup3(r1, r0, 0x0) [ 62.405137][ T8376] device hsr_slave_0 entered promiscuous mode [ 62.462525][ T8376] device hsr_slave_1 entered promiscuous mode [ 62.507935][ T8378] team0: Port device team_slave_0 added [ 62.545811][ T8387] IPVS: ftp: loaded support on port[0] = 21 [ 62.562833][ T8378] team0: Port device team_slave_1 added [ 62.574792][ T8381] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.584595][ T8381] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.592726][ T8381] device bridge_slave_0 entered promiscuous mode [ 62.617027][ T8389] IPVS: ftp: loaded support on port[0] = 21 [ 62.623904][ T8381] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.630978][ T8381] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.639648][ T8381] device bridge_slave_1 entered promiscuous mode [ 62.669261][ T8381] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.686293][ T8376] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.735650][ T8381] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.814890][ T8378] device hsr_slave_0 entered promiscuous mode [ 62.852821][ T8378] device hsr_slave_1 entered promiscuous mode [ 62.892523][ T8378] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.906171][ T8376] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.946073][ T8376] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.027797][ T8376] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.115001][ T8381] team0: Port device team_slave_0 added [ 63.123032][ T8381] team0: Port device team_slave_1 added [ 63.245094][ T8381] device hsr_slave_0 entered promiscuous mode [ 63.282781][ T8381] device hsr_slave_1 entered promiscuous mode [ 63.332610][ T8381] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.357342][ T8378] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 63.415181][ T8378] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 63.465143][ T8378] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 63.506131][ T8378] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 63.646615][ T8385] chnl_net:caif_netlink_parms(): no params data found [ 63.665572][ T8381] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.726413][ T8381] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.794916][ T8381] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.837237][ T8381] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.980219][ T8387] chnl_net:caif_netlink_parms(): no params data found [ 64.004430][ T8389] chnl_net:caif_netlink_parms(): no params data found [ 64.020918][ T8385] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.031262][ T8385] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.039559][ T8385] device bridge_slave_0 entered promiscuous mode [ 64.047621][ T8385] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.054912][ T8385] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.062982][ T8385] device bridge_slave_1 entered promiscuous mode [ 64.120842][ T8389] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.129889][ T8389] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.137851][ T8389] device bridge_slave_0 entered promiscuous mode [ 64.153793][ T8385] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.164727][ T8389] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.171963][ T8389] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.180287][ T8389] device bridge_slave_1 entered promiscuous mode [ 64.197281][ T8387] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.204508][ T8387] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.212429][ T8387] device bridge_slave_0 entered promiscuous mode [ 64.223918][ T8385] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.248833][ T8385] team0: Port device team_slave_0 added [ 64.262718][ T8387] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.269891][ T8387] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.280714][ T8387] device bridge_slave_1 entered promiscuous mode [ 64.299694][ T8389] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.310881][ T8389] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.322931][ T8385] team0: Port device team_slave_1 added [ 64.334121][ T8387] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.350156][ T8376] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.405783][ T8385] device hsr_slave_0 entered promiscuous mode [ 64.462798][ T8385] device hsr_slave_1 entered promiscuous mode [ 64.512374][ T8385] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.527074][ T8378] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.542893][ T8387] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.560909][ T8376] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.575640][ T8389] team0: Port device team_slave_0 added [ 64.593118][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.601623][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.628002][ T8389] team0: Port device team_slave_1 added [ 64.638930][ T8387] team0: Port device team_slave_0 added [ 64.651129][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.663084][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.672420][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.679645][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.688540][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.698107][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.706510][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.713648][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.721223][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.730406][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.739657][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.747292][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.762052][ T8381] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.786999][ T8387] team0: Port device team_slave_1 added [ 64.797131][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.805523][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.814876][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.823722][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.832677][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.841409][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.856610][ T8378] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.915180][ T8389] device hsr_slave_0 entered promiscuous mode [ 64.962834][ T8389] device hsr_slave_1 entered promiscuous mode [ 65.002377][ T8389] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.033248][ T8381] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.042446][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.050247][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.059759][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.068764][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.077538][ T8395] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.084616][ T8395] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.092933][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.101550][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.110722][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.121073][ T8385] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 65.204278][ T8387] device hsr_slave_0 entered promiscuous mode [ 65.243185][ T8387] device hsr_slave_1 entered promiscuous mode [ 65.292474][ T8387] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.310017][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.318709][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.327327][ T8394] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.334408][ T8394] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.342812][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.351316][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.360171][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.369396][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.385618][ T8385] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 65.438160][ T8376] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.449735][ T8376] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.471178][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.479705][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.489074][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.497650][ T8394] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.504737][ T8394] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.513132][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.521924][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.530598][ T8394] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.537667][ T8394] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.545656][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.553996][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.562672][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.571977][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.587308][ T8378] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.598450][ T8378] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.610391][ T8385] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 65.644608][ T8385] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 65.711784][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.720779][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.729301][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.738151][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.747293][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.755830][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.764050][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.772775][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.781884][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.791445][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.799108][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.818985][ T8376] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.833170][ T8387] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 65.872994][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.880479][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.888304][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.898109][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.916020][ T8389] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 65.946105][ T8387] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 66.006940][ T8378] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.033795][ T8389] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 66.056398][ T8389] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 66.104212][ T8387] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 66.146855][ T8387] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 66.213930][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.222960][ T8394] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.234837][ T8389] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 171.292185][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 171.300341][ C0] (detected by 0, t=10502 jiffies, g=6577, q=95) [ 171.306873][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954242-4294943739), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 171.320860][ C0] kworker/0:3 R running task 26760 8394 2 0x80004008 [ 171.329176][ C0] Workqueue: rcu_gp process_srcu [ 171.334604][ C0] Call Trace: [ 171.338064][ C0] [ 171.341014][ C0] sched_show_task+0x40f/0x560 [ 171.345801][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 171.351100][ C0] update_process_times+0x12d/0x180 [ 171.356481][ C0] tick_sched_timer+0x263/0x420 [ 171.361339][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 171.367130][ C0] __hrtimer_run_queues+0x403/0x840 [ 171.372501][ C0] hrtimer_interrupt+0x38c/0xda0 [ 171.377659][ C0] ? debug_smp_processor_id+0x9/0x20 [ 171.383275][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 171.388974][ C0] apic_timer_interrupt+0xf/0x20 [ 171.393994][ C0] [ 171.396937][ C0] RIP: 0010:__memcg_kmem_uncharge+0xd/0x2e0 [ 171.402856][ C0] Code: 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 dc 7d ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 <50> 89 f3 49 89 fc 48 b8 00 00 00 00 00 fc ff df 4c 8d 77 38 4d 89 [ 171.423076][ C0] RSP: 0018:ffffc900024ff8c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 171.432206][ C0] RAX: ffffffff81486ea4 RBX: ffffea00021b9a40 RCX: ffff888094b4a500 [ 171.440450][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00021b9a40 [ 171.448977][ C0] RBP: ffffc900024ff8e8 R08: dffffc0000000000 R09: fffffbfff12877ed [ 171.456968][ C0] R10: fffffbfff12877ed R11: 0000000000000000 R12: ffff888093abfd20 [ 171.465078][ C0] R13: dffffc0000000000 R14: 1ffff11012757fa4 R15: ffff88808f995628 [ 171.473551][ C0] ? free_thread_stack+0x124/0x590 [ 171.478774][ C0] free_thread_stack+0x12e/0x590 [ 171.483818][ C0] put_task_stack+0xa3/0x130 [ 171.488590][ C0] finish_task_switch+0x3f1/0x550 [ 171.494091][ C0] __schedule+0x9a8/0xcc0 [ 171.498786][ C0] preempt_schedule_irq+0xc1/0x140 [ 171.504240][ C0] retint_kernel+0x1b/0x2b [ 171.508985][ C0] RIP: 0010:delay_tsc+0x96/0xf0 [ 171.514267][ C0] Code: fb 41 89 c7 0f 01 f9 66 90 49 89 d4 49 c1 e4 20 49 09 c4 eb 29 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 a8 01 75 ca f3 90 01 00 00 00 e8 10 cb 67 f9 e8 1b a3 a8 fb 41 39 c7 75 bb 0f 01 [ 171.535003][ C0] RSP: 0018:ffffc900024ffb48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 171.544379][ C0] RAX: 0000000080000000 RBX: 00000000000023d6 RCX: 0000000000000001 [ 171.552711][ C0] RDX: 0000000000000025 RSI: 0000000000000001 RDI: 0000000000000001 [ 171.561254][ C0] RBP: ffffc900024ffb68 R08: ffffffff8393da27 R09: fffffbfff1455efd [ 171.569644][ C0] R10: fffffbfff1455efd R11: 0000000000000000 R12: 00000025c237e11a [ 171.578493][ C0] R13: 0000000000000001 R14: 0000000000002ced R15: 0000000000000000 [ 171.587616][ C0] ? check_preemption_disabled+0x37/0x260 [ 171.593561][ C0] ? delay_tsc+0xc6/0xf0 [ 171.598003][ C0] __const_udelay+0x5e/0x70 [ 171.602648][ C0] try_check_zero+0x6e/0x380 [ 171.607542][ C0] process_srcu+0x1b7/0xd20 [ 171.612074][ C0] process_one_work+0x7ef/0x10d0 [ 171.617123][ C0] worker_thread+0xc01/0x1630 [ 171.622361][ C0] kthread+0x332/0x350 [ 171.626622][ C0] ? rcu_lock_release+0x30/0x30 [ 171.631679][ C0] ? kthread_blkcg+0xe0/0xe0 [ 171.636642][ C0] ret_from_fork+0x24/0x30 [ 171.641207][ C0] rcu: rcu_preempt kthread starved for 10536 jiffies! g6577 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 171.652766][ C0] rcu: RCU grace-period kthread stack dump: [ 171.659253][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 171.667643][ C0] Call Trace: [ 171.671374][ C0] __schedule+0x9a0/0xcc0 [ 171.675736][ C0] schedule+0x181/0x210 [ 171.680166][ C0] schedule_timeout+0x14f/0x240 [ 171.685040][ C0] ? run_local_timers+0x120/0x120 [ 171.690168][ C0] rcu_gp_kthread+0xed8/0x1770 [ 171.695310][ C0] kthread+0x332/0x350 [ 171.699422][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 171.704822][ C0] ? kthread_blkcg+0xe0/0xe0 [ 171.710585][ C0] ret_from_fork+0x24/0x30