[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 53.973249][ T23] audit: type=1800 audit(1578449619.247:25): pid=8508 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 53.992670][ T23] audit: type=1800 audit(1578449619.247:26): pid=8508 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.027419][ T23] audit: type=1800 audit(1578449619.247:27): pid=8508 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 '10.128.0.100' (ECDSA) to the list of known hosts. 2020/01/08 02:13:47 fuzzer started 2020/01/08 02:13:49 dialing manager at 10.128.0.26:35703 2020/01/08 02:13:49 syscalls: 2824 2020/01/08 02:13:49 code coverage: enabled 2020/01/08 02:13:49 comparison tracing: enabled 2020/01/08 02:13:49 extra coverage: enabled 2020/01/08 02:13:49 setuid sandbox: enabled 2020/01/08 02:13:49 namespace sandbox: enabled 2020/01/08 02:13:49 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 02:13:49 fault injection: enabled 2020/01/08 02:13:49 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 02:13:49 net packet injection: enabled 2020/01/08 02:13:49 net device setup: enabled 2020/01/08 02:13:49 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 02:13:49 devlink PCI setup: PCI device 0000:00:10.0 is not available 02:13:50 executing program 0: bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x10, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x5, 0x0, 0x0, 0x0, 0x71, 0x10, 0x13}, [@ldst={0x0, 0x0, 0x2}]}, &(0x7f0000003ff6)='GPL\x00', 0x5, 0xfd90, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x0, 0x10, &(0x7f0000000080), 0xfffffffffffffffb}, 0x48) 02:13:50 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000380)={'\x00', &(0x7f00000001c0)=@ethtool_gstrings={0x1b, 0x6}}) syzkaller login: [ 65.610166][ T8674] IPVS: ftp: loaded support on port[0] = 21 02:13:51 executing program 2: bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0xa, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x5, 0x0, 0x0, 0x0, 0x71, 0x10, 0x8d}, [@ldst={0x4}]}, &(0x7f0000003ff6)='GPL\x00', 0x5, 0xfd90, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x0, 0x10, &(0x7f0000000080), 0xfffffffffffffffb}, 0x48) [ 65.791470][ T8674] chnl_net:caif_netlink_parms(): no params data found [ 65.814297][ T8677] IPVS: ftp: loaded support on port[0] = 21 [ 65.886066][ T8674] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.895075][ T8674] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.903528][ T8674] device bridge_slave_0 entered promiscuous mode [ 65.921238][ T8674] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.930361][ T8674] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.938745][ T8674] device bridge_slave_1 entered promiscuous mode [ 65.985500][ T8674] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.025335][ T8674] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 02:13:51 executing program 3: syz_mount_image$gfs2(&(0x7f0000000000)='gfs2\x00', &(0x7f0000000040)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f00000000c0)={[{@acl='acl'}, {@norecovery='norecovery'}]}) [ 66.080897][ T8677] chnl_net:caif_netlink_parms(): no params data found [ 66.097019][ T8674] team0: Port device team_slave_0 added [ 66.113598][ T8674] team0: Port device team_slave_1 added [ 66.155283][ T8680] IPVS: ftp: loaded support on port[0] = 21 02:13:51 executing program 4: r0 = socket$netlink(0x10, 0x3, 0x4) r1 = syz_genetlink_get_family_id$devlink(&(0x7f00000002c0)='devlink\x00') sendmsg$DEVLINK_CMD_GET(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000000)={0x6c, r1, 0x533, 0x0, 0x0, {}, [@pci={{0x8, 0x1, 'pci\x00'}, {0x14, 0x2, '0000:00:10.0\x00'}}, @pci={{0x8, 0x1, 'pci\x00'}, {0x14, 0x2, '0000:00:10.0\x00'}}, @nsim={{0x10, 0x1, 'netdevsim\x00'}, {0x10, 0x2, {'netdevsim', 0x0}}}]}, 0x6c}}, 0x0) [ 66.355961][ T8674] device hsr_slave_0 entered promiscuous mode [ 66.414326][ T8674] device hsr_slave_1 entered promiscuous mode [ 66.474562][ T8677] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.484188][ T8677] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.500611][ T8677] device bridge_slave_0 entered promiscuous mode [ 66.520903][ T8682] IPVS: ftp: loaded support on port[0] = 21 02:13:51 executing program 5: bpf$PROG_LOAD(0x5, &(0x7f0000000040)={0x10000000012, 0x4, &(0x7f00000000c0)=@framed={{}, [@alu={0x8000000201a7f19, 0x0, 0x7, 0x0, 0x1, 0x39}]}, &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0xb, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 66.545897][ T8677] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.554962][ T8677] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.569214][ T8677] device bridge_slave_1 entered promiscuous mode [ 66.596236][ T8684] IPVS: ftp: loaded support on port[0] = 21 [ 66.653515][ T8677] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.673381][ T8677] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.715231][ T8677] team0: Port device team_slave_0 added [ 66.739469][ T8677] team0: Port device team_slave_1 added [ 66.794220][ T8677] device hsr_slave_0 entered promiscuous mode [ 66.831881][ T8677] device hsr_slave_1 entered promiscuous mode [ 66.891582][ T8677] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.899347][ T8677] Cannot create hsr debugfs directory [ 66.913011][ T8686] IPVS: ftp: loaded support on port[0] = 21 [ 66.983457][ T8674] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.055400][ T8674] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.105857][ T8674] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.164241][ T8674] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.308495][ T8682] chnl_net:caif_netlink_parms(): no params data found [ 67.333416][ T8680] chnl_net:caif_netlink_parms(): no params data found [ 67.364802][ T8677] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.447683][ T8684] chnl_net:caif_netlink_parms(): no params data found [ 67.464570][ T8677] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.543082][ T8677] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.604877][ T8682] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.612103][ T8682] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.619979][ T8682] device bridge_slave_0 entered promiscuous mode [ 67.629755][ T8677] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.692285][ T8682] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.699464][ T8682] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.707715][ T8682] device bridge_slave_1 entered promiscuous mode [ 67.773968][ T8680] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.781070][ T8680] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.788872][ T8680] device bridge_slave_0 entered promiscuous mode [ 67.800756][ T8680] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.807932][ T8680] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.815649][ T8680] device bridge_slave_1 entered promiscuous mode [ 67.847070][ T8682] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.856409][ T8684] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.866767][ T8684] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.874603][ T8684] device bridge_slave_0 entered promiscuous mode [ 67.883370][ T8680] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.895471][ T8680] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.907005][ T8674] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.918529][ T8682] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.928240][ T8684] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.935673][ T8684] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.943735][ T8684] device bridge_slave_1 entered promiscuous mode [ 67.979951][ T8680] team0: Port device team_slave_0 added [ 67.988935][ T8680] team0: Port device team_slave_1 added [ 68.008102][ T8674] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.018199][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.026522][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.034563][ T8686] chnl_net:caif_netlink_parms(): no params data found [ 68.069693][ T8682] team0: Port device team_slave_0 added [ 68.081471][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.090520][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.099148][ T2726] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.106496][ T2726] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.115432][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.125632][ T8677] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.141010][ T8684] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.152727][ T8682] team0: Port device team_slave_1 added [ 68.169044][ T8684] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.188543][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.197707][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.206437][ T3224] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.213585][ T3224] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.221153][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.284330][ T8680] device hsr_slave_0 entered promiscuous mode [ 68.321726][ T8680] device hsr_slave_1 entered promiscuous mode [ 68.361958][ T8680] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.369558][ T8680] Cannot create hsr debugfs directory [ 68.380336][ T8686] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.387897][ T8686] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.395944][ T8686] device bridge_slave_0 entered promiscuous mode [ 68.404453][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.413266][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.420958][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.429025][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.437484][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.450544][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.468937][ T8677] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.493382][ T8686] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.500554][ T8686] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.508527][ T8686] device bridge_slave_1 entered promiscuous mode [ 68.530081][ T8686] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.544485][ T8684] team0: Port device team_slave_0 added [ 68.556209][ T8686] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.593875][ T8682] device hsr_slave_0 entered promiscuous mode [ 68.621797][ T8682] device hsr_slave_1 entered promiscuous mode [ 68.661935][ T8682] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.669619][ T8682] Cannot create hsr debugfs directory [ 68.676627][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.686965][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.700373][ T8684] team0: Port device team_slave_1 added [ 68.753757][ T8684] device hsr_slave_0 entered promiscuous mode [ 68.791807][ T8684] device hsr_slave_1 entered promiscuous mode [ 68.831552][ T8684] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.839161][ T8684] Cannot create hsr debugfs directory [ 68.869036][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.877512][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.886804][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.895648][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.904699][ T2726] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.911816][ T2726] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.919327][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.927986][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.936774][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.956436][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.965752][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.974541][ T2988] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.974577][ T2988] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.007735][ T8686] team0: Port device team_slave_0 added [ 69.020556][ T8686] team0: Port device team_slave_1 added [ 69.028817][ T8674] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.046572][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.056285][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.080082][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.088927][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.097515][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.106128][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.114610][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.123066][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.131176][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.139636][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.175115][ T8677] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.194349][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.254589][ T8686] device hsr_slave_0 entered promiscuous mode [ 69.291926][ T8686] device hsr_slave_1 entered promiscuous mode [ 69.341879][ T8686] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.349453][ T8686] Cannot create hsr debugfs directory [ 69.372835][ T8674] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.387048][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.394559][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.426742][ T8680] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 69.484794][ T8680] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 69.538803][ T8680] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 69.612460][ T8680] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.659674][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.668137][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.680798][ T8677] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.688354][ T8682] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 69.725176][ T8682] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 69.794624][ T8684] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 69.853986][ T8682] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 69.895884][ T8682] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 69.965269][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.974284][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.991571][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.000220][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.013856][ T8684] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 70.035078][ T8684] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 70.087114][ T8684] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 70.148624][ T8674] device veth0_vlan entered promiscuous mode [ 70.165069][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.173828][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.211296][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.219298][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.264117][ T8674] device veth1_vlan entered promiscuous mode [ 70.275149][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.288514][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.298313][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.306236][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.322763][ T8686] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 70.363303][ T8686] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 70.403146][ T8677] device veth0_vlan entered promiscuous mode [ 70.409716][ T8686] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 70.464379][ T8686] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 70.529862][ T8680] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.555972][ T8677] device veth1_vlan entered promiscuous mode [ 70.609771][ T8680] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.623370][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.637566][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.646111][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.655278][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.666349][ T8682] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.713486][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.730573][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.750383][ T2988] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.757574][ T2988] bridge0: port 1(bridge_slave_0) entered forwarding state [ 175.761341][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 175.768428][ C0] (detected by 0, t=10502 jiffies, g=6889, q=55) [ 175.774835][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954716-4294944213), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 175.788180][ C0] kworker/0:72 R running task 27288 2988 2 0x80004008 [ 175.796080][ C0] Workqueue: events linkwatch_event [ 175.801349][ C0] Call Trace: [ 175.804619][ C0] [ 175.807465][ C0] sched_show_task+0x40f/0x560 [ 175.812230][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 175.817511][ C0] update_process_times+0x12d/0x180 [ 175.822708][ C0] tick_sched_timer+0x263/0x420 [ 175.827548][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.833084][ C0] __hrtimer_run_queues+0x403/0x840 [ 175.838288][ C0] hrtimer_interrupt+0x38c/0xda0 [ 175.843231][ C0] ? debug_smp_processor_id+0x9/0x20 [ 175.848509][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 175.854044][ C0] apic_timer_interrupt+0xf/0x20 [ 175.859000][ C0] [ 175.861947][ C0] RIP: 0010:free_thread_stack+0x11f/0x590 [ 175.867665][ C0] Code: 3e e8 45 73 ee 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 3c 2c 2e 00 48 89 df 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 [ 175.887267][ C0] RSP: 0018:ffffc90008727820 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 175.895671][ C0] RAX: 1ffff11012623e41 RBX: ffffea00023a85c0 RCX: ffff88809e7025c0 [ 175.903635][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00023a85c0 [ 175.911598][ C0] RBP: ffffc90008727858 R08: dffffc0000000000 R09: fffffbfff124248a [ 175.919567][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff88809311f2a0 [ 175.927546][ C0] R13: dffffc0000000000 R14: 1ffff11012623e54 R15: ffff8880a85017b8 [ 175.935532][ C0] put_task_stack+0xa3/0x130 [ 175.940117][ C0] finish_task_switch+0x3f1/0x550 [ 175.945136][ C0] __schedule+0x9a8/0xcc0 [ 175.949464][ C0] ? ___preempt_schedule+0x16/0x18 [ 175.954580][ C0] preempt_schedule+0xdb/0x120 [ 175.959438][ C0] ? br_port_carrier_check+0x462/0x570 [ 175.964888][ C0] ___preempt_schedule+0x16/0x18 [ 175.969817][ C0] ? mark_lock+0x107/0x1650 [ 175.974308][ C0] __local_bh_enable_ip+0x17d/0x240 [ 175.979496][ C0] ? br_port_carrier_check+0x462/0x570 [ 175.984947][ C0] _raw_spin_unlock_bh+0x2f/0x40 [ 175.989876][ C0] br_port_carrier_check+0x462/0x570 [ 175.995161][ C0] br_device_event+0x449/0x860 [ 176.000098][ C0] raw_notifier_call_chain+0xec/0x190 [ 176.005488][ C0] netdev_state_change+0x147/0x1f0 [ 176.010684][ C0] linkwatch_do_dev+0x10e/0x160 [ 176.015526][ C0] __linkwatch_run_queue+0x446/0x730 [ 176.020811][ C0] linkwatch_event+0x4c/0x60 [ 176.025391][ C0] process_one_work+0x7ef/0x10d0 [ 176.030331][ C0] worker_thread+0xc01/0x1630 [ 176.035045][ C0] kthread+0x332/0x350 [ 176.039117][ C0] ? rcu_lock_release+0x30/0x30 [ 176.043967][ C0] ? kthread_blkcg+0xe0/0xe0 [ 176.048555][ C0] ret_from_fork+0x24/0x30 [ 176.052980][ C0] rcu: rcu_preempt kthread starved for 10531 jiffies! g6889 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 176.064082][ C0] rcu: RCU grace-period kthread stack dump: [ 176.069961][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 176.077861][ C0] Call Trace: [ 176.081174][ C0] __schedule+0x9a0/0xcc0 [ 176.085520][ C0] schedule+0x181/0x210 [ 176.089675][ C0] schedule_timeout+0x14f/0x240 [ 176.095485][ C0] ? run_local_timers+0x120/0x120 [ 176.100741][ C0] rcu_gp_kthread+0xed8/0x1770 [ 176.105527][ C0] kthread+0x332/0x350 [ 176.109608][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 176.114725][ C0] ? kthread_blkcg+0xe0/0xe0 [ 176.119317][ C0] ret_from_fork+0x24/0x30