[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 51.980446][ T27] audit: type=1800 audit(1578463192.950:25): pid=8386 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.009768][ T27] audit: type=1800 audit(1578463192.960:26): pid=8386 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.077794][ T27] audit: type=1800 audit(1578463192.960:27): pid=8386 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 '10.128.0.72' (ECDSA) to the list of known hosts. 2020/01/08 06:00:05 fuzzer started 2020/01/08 06:00:07 dialing manager at 10.128.0.26:35703 2020/01/08 06:00:07 syscalls: 2824 2020/01/08 06:00:07 code coverage: enabled 2020/01/08 06:00:07 comparison tracing: enabled 2020/01/08 06:00:07 extra coverage: enabled 2020/01/08 06:00:07 setuid sandbox: enabled 2020/01/08 06:00:07 namespace sandbox: enabled 2020/01/08 06:00:07 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 06:00:07 fault injection: enabled 2020/01/08 06:00:07 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 06:00:07 net packet injection: enabled 2020/01/08 06:00:07 net device setup: enabled 2020/01/08 06:00:07 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 06:00:07 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:00:08 executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) setrlimit(0x7, &(0x7f0000000180)) accept(r0, 0x0, 0x0) syzkaller login: [ 67.224111][ T8552] IPVS: ftp: loaded support on port[0] = 21 06:00:08 executing program 1: r0 = syz_open_dev$video4linux(&(0x7f0000000040)='/dev/v4l-subdev#\x00', 0x807, 0x0) ioctl$VIDIOC_SUBDEV_S_FMT(r0, 0xc0585605, &(0x7f0000000180)={0x0, 0x0, {0x0, 0x0, 0x3012}}) [ 67.343989][ T8552] chnl_net:caif_netlink_parms(): no params data found [ 67.388661][ T8552] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.397151][ T8552] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.414567][ T8552] device bridge_slave_0 entered promiscuous mode [ 67.423968][ T8552] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.444485][ T8552] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.452191][ T8552] device bridge_slave_1 entered promiscuous mode [ 67.487636][ T8552] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.499218][ T8552] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.524079][ T8552] team0: Port device team_slave_0 added [ 67.527173][ T8555] IPVS: ftp: loaded support on port[0] = 21 [ 67.532901][ T8552] team0: Port device team_slave_1 added 06:00:08 executing program 2: r0 = gettid() rt_sigqueueinfo(r0, 0x11, &(0x7f00000000c0)={0x0, 0x0, 0x2000}) [ 67.608831][ T8552] device hsr_slave_0 entered promiscuous mode [ 67.664714][ T8552] device hsr_slave_1 entered promiscuous mode [ 67.728845][ T8557] IPVS: ftp: loaded support on port[0] = 21 06:00:08 executing program 3: syz_mount_image$iso9660(&(0x7f0000000080)='iso9660\x00', &(0x7f00000000c0)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f00000011c0)={[{@dmode={'dmode'}}]}) [ 67.935927][ T8555] chnl_net:caif_netlink_parms(): no params data found [ 67.991071][ T8552] netdevsim netdevsim0 netdevsim0: renamed from eth0 06:00:09 executing program 4: r0 = socket(0xa, 0x2, 0x0) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @loopback={0xfec0ffff00000000}}, 0x1c) [ 68.087801][ T8552] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.159986][ T8552] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.214024][ T8560] IPVS: ftp: loaded support on port[0] = 21 [ 68.251647][ T8552] netdevsim netdevsim0 netdevsim3: renamed from eth3 06:00:09 executing program 5: socket$inet6(0xa, 0x0, 0x0) ftruncate(0xffffffffffffffff, 0x0) getgroups(0x0, &(0x7f0000000340)) getgroups(0x0, 0x0) modify_ldt$write2(0x11, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) clone(0x20002100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0xe, 0x16, &(0x7f00000003c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000040), 0x1f1}, 0x48) exit(0x0) bpf$BPF_BTF_LOAD(0x12, 0x0, 0x0) [ 68.302807][ T8555] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.316345][ T8555] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.326510][ T8555] device bridge_slave_0 entered promiscuous mode [ 68.336861][ T8555] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.343938][ T8555] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.354287][ T8555] device bridge_slave_1 entered promiscuous mode [ 68.366765][ T8562] IPVS: ftp: loaded support on port[0] = 21 [ 68.371794][ T8552] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.379848][ T8552] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.387743][ T8552] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.394848][ T8552] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.414263][ T3035] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.425953][ T3035] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.447722][ T8557] chnl_net:caif_netlink_parms(): no params data found [ 68.508578][ T8555] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.538454][ T8557] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.545774][ T8557] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.553424][ T8557] device bridge_slave_0 entered promiscuous mode [ 68.561715][ T8555] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.581681][ T8565] IPVS: ftp: loaded support on port[0] = 21 [ 68.589084][ T8557] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.596487][ T8557] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.604024][ T8557] device bridge_slave_1 entered promiscuous mode [ 68.647623][ T8555] team0: Port device team_slave_0 added [ 68.670385][ T8555] team0: Port device team_slave_1 added [ 68.678366][ T8557] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.736850][ T8557] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.769595][ T8560] chnl_net:caif_netlink_parms(): no params data found [ 68.836124][ T8555] device hsr_slave_0 entered promiscuous mode [ 68.875815][ T8555] device hsr_slave_1 entered promiscuous mode [ 68.914596][ T8555] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.914700][ T8555] Cannot create hsr debugfs directory [ 68.950732][ T8557] team0: Port device team_slave_0 added [ 68.959459][ T8552] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.981353][ T8562] chnl_net:caif_netlink_parms(): no params data found [ 68.993081][ T8557] team0: Port device team_slave_1 added [ 69.077441][ T8557] device hsr_slave_0 entered promiscuous mode [ 69.124817][ T8557] device hsr_slave_1 entered promiscuous mode [ 69.164491][ T8557] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.172347][ T8557] Cannot create hsr debugfs directory [ 69.203769][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.211959][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.233943][ T8560] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.241391][ T8560] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.250161][ T8560] device bridge_slave_0 entered promiscuous mode [ 69.261995][ T8560] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.269276][ T8560] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.277218][ T8560] device bridge_slave_1 entered promiscuous mode [ 69.318015][ T8552] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.332939][ T8560] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.348043][ T8562] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.355315][ T8562] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.362816][ T8562] device bridge_slave_0 entered promiscuous mode [ 69.372615][ T8562] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.379823][ T8562] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.387916][ T8562] device bridge_slave_1 entered promiscuous mode [ 69.410721][ T8560] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.434946][ T8560] team0: Port device team_slave_0 added [ 69.446253][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.455427][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.463669][ T2848] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.470752][ T2848] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.479453][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.488213][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.496605][ T2848] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.503648][ T2848] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.533323][ T8560] team0: Port device team_slave_1 added [ 69.554507][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.563592][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.589064][ T8562] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.609042][ T8562] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.622589][ T8565] chnl_net:caif_netlink_parms(): no params data found [ 69.630833][ T8555] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 69.707095][ T8560] device hsr_slave_0 entered promiscuous mode [ 69.744877][ T8560] device hsr_slave_1 entered promiscuous mode [ 69.784542][ T8560] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.792191][ T8560] Cannot create hsr debugfs directory [ 69.816589][ T8555] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 69.860408][ T8555] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 69.909877][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.918480][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.930705][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.952299][ T8562] team0: Port device team_slave_0 added [ 69.958666][ T8555] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 70.009987][ T8557] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 70.070595][ T8562] team0: Port device team_slave_1 added [ 70.090037][ T8557] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 70.158402][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.167057][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.187621][ T8565] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.195401][ T8565] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.202991][ T8565] device bridge_slave_0 entered promiscuous mode [ 70.211428][ T8557] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 70.269825][ T8557] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 70.368169][ T8562] device hsr_slave_0 entered promiscuous mode [ 70.445191][ T8562] device hsr_slave_1 entered promiscuous mode [ 70.484566][ T8562] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.492166][ T8562] Cannot create hsr debugfs directory [ 70.498035][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.507411][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.516111][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.524271][ T2848] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.534468][ T8552] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.547779][ T8565] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.555248][ T8565] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.563085][ T8565] device bridge_slave_1 entered promiscuous mode [ 70.626551][ T8565] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.643887][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.652155][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.667777][ T8552] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.678713][ T8565] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.732168][ T8565] team0: Port device team_slave_0 added [ 70.759230][ T8565] team0: Port device team_slave_1 added [ 70.786888][ T8560] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 70.851113][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.860260][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.887634][ T8560] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 70.987537][ T8565] device hsr_slave_0 entered promiscuous mode [ 71.046023][ T8565] device hsr_slave_1 entered promiscuous mode [ 71.084723][ T8565] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.092358][ T8565] Cannot create hsr debugfs directory [ 71.102622][ T8555] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.116241][ T8560] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 71.157201][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.167962][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.177261][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.185162][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.202343][ T8555] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.214773][ T8552] device veth0_vlan entered promiscuous mode [ 71.224122][ T8562] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 71.267395][ T8562] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 71.316399][ T8560] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 71.360197][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.369767][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.379437][ T8557] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.390162][ T8552] device veth1_vlan entered promiscuous mode [ 71.399570][ T8562] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 71.464663][ T8562] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 71.516642][ T8557] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.524000][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.532195][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.540559][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.550117][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.558629][ T2761] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.565732][ T2761] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.573235][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.581685][ T2761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.625987][ T2762] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.633810][ T2762] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.643315][ T2762] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.652183][ T2762] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.659283][ T2762] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.668595][ T2762] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.677191][ T2762] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.721245][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.738749][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.750368][ T2855] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.757477][ T2855] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.765414][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.773954][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.784050][ T2855] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.791170][ T2855] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.802363][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.811109][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.820042][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.828676][ T2855] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.867294][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.878978][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.887539][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.896272][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.905336][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.914051][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 176.944355][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 176.951425][ C0] (detected by 0, t=10502 jiffies, g=6717, q=69) [ 176.957826][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954849-4294944346), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 176.971170][ C0] kworker/0:124 R running task 26448 3035 2 0x80004008 [ 176.979069][ C0] Workqueue: events linkwatch_event [ 176.984280][ C0] Call Trace: [ 176.987641][ C0] [ 176.990485][ C0] sched_show_task+0x40f/0x560 [ 176.995251][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 177.000530][ C0] update_process_times+0x12d/0x180 [ 177.005742][ C0] tick_sched_timer+0x263/0x420 [ 177.010577][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 177.016110][ C0] __hrtimer_run_queues+0x403/0x840 [ 177.021399][ C0] hrtimer_interrupt+0x38c/0xda0 [ 177.026343][ C0] ? debug_smp_processor_id+0x9/0x20 [ 177.031625][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 177.037159][ C0] apic_timer_interrupt+0xf/0x20 [ 177.042076][ C0] [ 177.045015][ C0] RIP: 0010:free_thread_stack+0x12e/0x590 [ 177.050723][ C0] Code: 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 e8 3c 2c 2e 00 48 89 df 31 f6 e8 02 8d 6f 00 <43> 80 3c 2e 00 74 08 4c 89 e7 e8 73 94 6a 00 49 8b 1c 24 48 83 c3 [ 177.070319][ C0] RSP: 0018:ffffc90008917700 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 177.078716][ C0] RAX: 0000000000000001 RBX: ffffea000249a5c0 RCX: 0000000000000000 [ 177.086675][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea000249a5c0 [ 177.094634][ C0] RBP: ffffc90008917738 R08: 000000000003a728 R09: fffffbfff124248a [ 177.102593][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff88808e4bc6a0 [ 177.110564][ C0] R13: dffffc0000000000 R14: 1ffff11011c978d4 R15: ffff888097d1b5f8 [ 177.118556][ C0] put_task_stack+0xa3/0x130 [ 177.123142][ C0] finish_task_switch+0x3f1/0x550 [ 177.128162][ C0] __schedule+0x9a8/0xcc0 [ 177.132489][ C0] ? ___preempt_schedule+0x16/0x18 [ 177.137586][ C0] preempt_schedule+0xdb/0x120 [ 177.142337][ C0] ___preempt_schedule+0x16/0x18 [ 177.147264][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 177.151925][ C0] ? vprintk_emit+0x368/0x3a0 [ 177.156609][ C0] vprintk_emit+0x36d/0x3a0 [ 177.161130][ C0] vprintk_default+0x28/0x30 [ 177.165725][ C0] vprintk_func+0x158/0x170 [ 177.170232][ C0] printk+0x62/0x8d [ 177.174040][ C0] ? addrconf_notify+0xd37/0x3c90 [ 177.179055][ C0] ? addrconf_notify+0x779/0x3c90 [ 177.184074][ C0] addrconf_notify+0x2c8d/0x3c90 [ 177.189011][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 177.194285][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 177.199652][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 177.205193][ C0] ? trace_hardirqs_on+0x74/0x80 [ 177.210128][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 177.215514][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 177.221051][ C0] ? tls_dev_event+0x619/0xc00 [ 177.225807][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 177.231363][ C0] ? ip6mr_device_event+0x1ee/0x210 [ 177.236575][ C0] raw_notifier_call_chain+0xec/0x190 [ 177.241954][ C0] netdev_state_change+0x147/0x1f0 [ 177.247075][ C0] linkwatch_do_dev+0x10e/0x160 [ 177.251921][ C0] __linkwatch_run_queue+0x446/0x730 [ 177.257208][ C0] linkwatch_event+0x4c/0x60 [ 177.261802][ C0] process_one_work+0x7ef/0x10d0 [ 177.266745][ C0] worker_thread+0xc01/0x1630 [ 177.271780][ C0] kthread+0x332/0x350 [ 177.275839][ C0] ? rcu_lock_release+0x30/0x30 [ 177.280691][ C0] ? kthread_blkcg+0xe0/0xe0 [ 177.285269][ C0] ret_from_fork+0x24/0x30 [ 177.289694][ C0] rcu: rcu_preempt kthread starved for 10536 jiffies! g6717 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 177.300787][ C0] rcu: RCU grace-period kthread stack dump: [ 177.306662][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 177.314554][ C0] Call Trace: [ 177.317838][ C0] __schedule+0x9a0/0xcc0 [ 177.322168][ C0] schedule+0x181/0x210 [ 177.326326][ C0] schedule_timeout+0x14f/0x240 [ 177.331185][ C0] ? run_local_timers+0x120/0x120 [ 177.336223][ C0] rcu_gp_kthread+0xed8/0x1770 [ 177.340994][ C0] kthread+0x332/0x350 [ 177.345053][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 177.350157][ C0] ? kthread_blkcg+0xe0/0xe0 [ 177.354741][ C0] ret_from_fork+0x24/0x30