[ 42.475883] audit: type=1800 audit(1576872001.311:32): pid=7134 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 42.501169] audit: type=1800 audit(1576872001.341:33): pid=7134 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 54.652461] IPVS: Creating netns size=2712 id=1 [ 54.657599] IPVS: ftp: loaded support on port[0] = 21 [ 55.270356] audit: type=1400 audit(1576872014.111:34): avc: denied { create } for pid=7318 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 [ 55.294785] audit: type=1400 audit(1576872014.131:35): avc: denied { create } for pid=7318 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 55.319451] audit: type=1400 audit(1576872014.161:36): avc: denied { create } for pid=7318 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts. 2019/12/20 20:00:21 parsed 1 programs 2019/12/20 20:00:21 executed programs: 0 [ 62.707753] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 62.729350] IPVS: Creating netns size=2712 id=2 [ 62.730166] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 62.736217] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 62.741513] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 62.749576] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 62.752270] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 62.766994] IPVS: ftp: loaded support on port[0] = 21 [ 62.835781] IPVS: Creating netns size=2712 id=3 [ 62.840694] IPVS: ftp: loaded support on port[0] = 21 [ 62.978390] chnl_net:caif_netlink_parms(): no params data found [ 63.005692] IPVS: Creating netns size=2712 id=4 [ 63.010595] IPVS: ftp: loaded support on port[0] = 21 [ 63.176961] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.183684] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.192793] device bridge_slave_0 entered promiscuous mode [ 63.248422] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.254816] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.263914] device bridge_slave_1 entered promiscuous mode [ 63.282775] IPVS: Creating netns size=2712 id=5 [ 63.288593] IPVS: ftp: loaded support on port[0] = 21 [ 63.339993] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 63.382299] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 63.468163] chnl_net:caif_netlink_parms(): no params data found [ 63.593843] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 63.596175] IPVS: Creating netns size=2712 id=6 [ 63.596298] IPVS: ftp: loaded support on port[0] = 21 [ 63.636394] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 63.716963] chnl_net:caif_netlink_parms(): no params data found [ 63.798217] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.804857] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.814025] device bridge_slave_0 entered promiscuous mode [ 63.828112] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 63.835519] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 63.844896] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.851358] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.860534] device bridge_slave_1 entered promiscuous mode [ 64.004700] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 64.028924] IPVS: Creating netns size=2712 id=7 [ 64.033775] IPVS: ftp: loaded support on port[0] = 21 [ 64.071648] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 64.139139] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.145614] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.155035] device bridge_slave_0 entered promiscuous mode [ 64.185618] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.192052] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.199180] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.205590] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.214992] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.222534] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.254611] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.261266] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.271022] device bridge_slave_1 entered promiscuous mode [ 64.421666] chnl_net:caif_netlink_parms(): no params data found [ 64.437585] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 64.448447] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 64.475105] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 64.485435] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 64.770998] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.778387] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.788604] device bridge_slave_0 entered promiscuous mode [ 64.796753] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 64.818959] chnl_net:caif_netlink_parms(): no params data found [ 64.840786] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.847801] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.856875] device bridge_slave_1 entered promiscuous mode [ 64.863858] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 64.872181] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 64.881645] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 65.025546] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 65.040250] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 65.105741] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.113809] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 65.132014] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 65.221389] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 65.254438] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 65.300242] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 65.307832] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 65.344550] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.351880] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.362027] device bridge_slave_0 entered promiscuous mode [ 65.398590] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.406705] chnl_net:caif_netlink_parms(): no params data found [ 65.427003] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.434205] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.443640] device bridge_slave_1 entered promiscuous mode [ 65.493110] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 65.559563] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 65.579321] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 65.629073] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 65.666152] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.674110] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.680536] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.690729] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 65.766590] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 65.779198] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.785686] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.795131] device bridge_slave_0 entered promiscuous mode [ 65.803589] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.811666] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.818171] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.827341] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 65.838523] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.845063] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.854435] device bridge_slave_1 entered promiscuous mode [ 65.977766] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 65.990807] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 66.018855] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 66.027677] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 66.038416] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 66.084148] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 66.133851] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 66.210033] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 66.220214] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.243301] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 66.251428] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 66.263978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.344343] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.430890] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 66.445307] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.467044] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 66.476713] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 66.499718] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 66.509989] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.564033] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.581402] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.602112] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.625330] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 66.651067] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 66.674483] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.691406] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.697841] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.707996] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.732416] audit: type=1400 audit(1576872025.571:37): avc: denied { associate } for pid=7416 comm="syz-executor.5" name="syz5" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 66.737429] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.738248] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.738919] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.738977] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.747612] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.748291] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.748350] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.749634] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.789368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.790056] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.790109] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.806741] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 66.842833] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 66.868417] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.869230] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.869289] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.870034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.871582] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.911202] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.911908] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.911972] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.913022] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.916526] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 66.925102] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 66.963963] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 66.970448] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 67.011921] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.029358] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.030455] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.031333] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.052154] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.067843] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.098217] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.324973] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.342939] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 67.354679] sch_fq: defrate 0 ignored. [ 67.366234] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.400493] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.410363] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.416792] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.436201] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 67.450562] sch_fq: defrate 0 ignored. [ 67.455743] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.469172] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.514565] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.526373] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.532807] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.557000] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 67.566474] sch_fq: defrate 0 ignored. 2019/12/20 20:00:26 executed programs: 9 [ 67.634761] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 67.650841] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 67.663666] sch_fq: defrate 0 ignored. [ 67.692487] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 67.722713] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.734389] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.740809] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.766878] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 67.782810] sch_fq: defrate 0 ignored. [ 67.791313] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.809401] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.840994] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.860887] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.867317] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.879972] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.890400] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 67.899707] sch_fq: defrate 0 ignored. [ 67.989460] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 68.004395] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 68.013088] sch_fq: defrate 0 ignored. [ 68.026756] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 68.047729] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. [ 68.056330] sch_fq: defrate 0 ignored. [ 68.112116] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.150932] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.224500] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. [ 68.233416] sch_fq: defrate 0 ignored. [ 68.240618] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 68.250473] sch_fq: defrate 0 ignored. [ 174.277194] INFO: rcu_preempt self-detected stall on CPU[ 174.277258] INFO: rcu_sched detected stalls on CPUs/tasks: [ 174.277266] 0-...: (10501 ticks this GP) idle=b53/140000000000002/0 softirq=11935/11935 fqs=10501 [ 174.277268] (detected by 1, t=10502 jiffies, g=-8, c=-9, q=6) [ 174.277273] Task dump for CPU 0: [ 174.277275] kworker/u4:6 R running task 28800 7608 2 0x00000008 [ 174.277296] Workqueue: bat_events batadv_nc_worker [ 174.277300] ffff8800ab992018 ffff880127dc2088 0000000041b58ab3 ffffffff868facd7 [ 174.277306] ffffffff81391a70 ffff880000000000 ffffffff890091c0 ffffffff88065650 [ 174.277311] 0000000000000000 ffffffff865907a0 ffff88012b038a00 ffffed002560714a [ 174.277315] Call Trace: [ 174.277324] [] ? cancel_delayed_work_sync+0x10/0x10 [ 174.277328] [] ? worker_thread+0xd7/0xf10 [ 174.277333] [] ? __schedule+0x918/0x1c00 [ 174.277337] [] ? process_one_work+0x1570/0x1570 [ 174.277340] [] ? kthread+0x209/0x2d0 [ 174.277344] [] ? kthread_create_on_node+0x390/0x390 [ 174.277349] [] ? ret_from_fork+0x22/0x50 [ 174.277352] [] ? kthread_create_on_node+0x390/0x390 [ 174.287269] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 174.287278] 0-...: (10501 ticks this GP) idle=b53/140000000000002/0 softirq=11935/11935 fqs=0 [ 174.287279] (detected by 1, t=10502 jiffies, g=2119, c=2118, q=791) [ 174.287284] Task dump for CPU 0: [ 174.287287] kworker/u4:6 R running task 28800 7608 2 0x00000008 [ 174.287307] Workqueue: bat_events batadv_nc_worker [ 174.287310] ffff8800ab992018 ffff880127dc2088 0000000041b58ab3 ffffffff868facd7 [ 174.287315] ffffffff81391a70 ffff880000000000 ffffffff890091c0 ffffffff88065650 [ 174.287319] 0000000000000000 ffffffff865907a0 ffff88012b038a00 ffffed002560714a [ 174.287324] Call Trace: [ 174.287332] [] ? cancel_delayed_work_sync+0x10/0x10 [ 174.287336] [] ? worker_thread+0xd7/0xf10 [ 174.287340] [] ? __schedule+0x918/0x1c00 [ 174.287344] [] ? process_one_work+0x1570/0x1570 [ 174.287347] [] ? kthread+0x209/0x2d0 [ 174.287351] [] ? kthread_create_on_node+0x390/0x390 [ 174.287355] [] ? ret_from_fork+0x22/0x50 [ 174.287359] [] ? kthread_create_on_node+0x390/0x390 [ 174.287365] rcu_preempt kthread starved for 10502 jiffies! g2119 c2118 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1 [ 174.287367] rcu_preempt S ffff88012b06fac8 29392 7 2 0x00000000 [ 174.287379] ffff88012b06fac8 ffff88012c020400 ffff88012c020d90 ffff88012c020d68 [ 174.287384] ffff88012c020418 ffff88012b05a188 1ffff10000000000 ffff8800abb28480 [ 174.287388] ffff88012b05a180 ffff88012b068000 ffffed002560d001 ffff88012b068008 [ 174.287393] Call Trace: [ 174.287396] [] schedule+0x9a/0x1c0 [ 174.287399] [] schedule_timeout+0x2e5/0x670 [ 174.287402] [] ? usleep_range+0x130/0x130 [ 174.287406] [] ? prepare_to_swait+0x11e/0x220 [ 174.287409] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 174.287412] [] ? swake_up_all+0x370/0x370 [ 174.287415] [] ? init_timer_on_stack_key+0xe0/0xe0 [ 174.287419] [] ? prepare_to_swait_event+0x6c/0xf0 [ 174.287422] [] rcu_gp_kthread+0xee2/0x1f70 [ 174.287426] [] ? pick_next_task_fair+0xa8e/0x1400 [ 174.287431] [] ? force_qs_rnp+0x400/0x400 [ 174.287435] [] ? trace_hardirqs_on_caller+0x44c/0x5e0 [ 174.287438] [] ? _raw_spin_unlock_irq+0x60/0x80 [ 174.287441] [] ? __schedule+0x1206/0x1c00 [ 174.287452] [] ? force_qs_rnp+0x400/0x400 [ 174.287455] [] kthread+0x209/0x2d0 [ 174.287458] [] ? kthread_create_on_node+0x390/0x390 [ 174.287463] [] ret_from_fork+0x22/0x50 [ 174.287466] [] ? kthread_create_on_node+0x390/0x390 [ 174.673593] [ 174.675739] 0-...: (10501 ticks this GP) idle=b53/140000000000002/0 softirq=11935/11935 fqs=39 [ 174.684911] (t=10541 jiffies g=2119 c=2118 q=791) [ 174.690125] Task dump for CPU 0: [ 174.693509] kworker/u4:6 R running task 28800 7608 2 0x00000008 [ 174.701062] Workqueue: bat_events batadv_nc_worker [ 174.706182] 0000000000000002 ffff88012c006700 ffffffff813d414c ffffffff81615a00 [ 174.714329] 0000000041b58ab3 ffffffff868f20bf ffffffff813d3ec0 ffff88012c0066c0 [ 174.722422] ffffffff81483dd4 0000000000000000 ffffed0000000000 0000000000000317 [ 174.730495] Call Trace: [ 174.733071] [] sched_show_task+0x28c/0x400 [ 174.739697] [] ? power_down+0xbf/0xbf [ 174.745139] [] ? SyS_sched_rr_get_interval+0x2b0/0x2b0 [ 174.752063] [] ? rcu_dump_cpu_stacks+0x84/0x290 [ 174.758370] [] dump_cpu_task+0x71/0x90 [ 174.763896] [] rcu_dump_cpu_stacks+0x191/0x290 [ 174.770119] [] rcu_check_callbacks+0xde1/0x2010 [ 174.776429] [] ? trace_hardirqs_off+0xd/0x10 [ 174.782480] [] ? tick_sched_do_timer+0x80/0x80 [ 174.788786] [] ? tick_sched_do_timer+0x80/0x80 [ 174.795028] [] update_process_times+0x34/0x60 [ 174.801262] [] tick_sched_handle.isra.19+0x44/0xe0 [ 174.807948] [] tick_sched_timer+0x64/0xd0 [ 174.813734] [] __hrtimer_run_queues+0x2d4/0xbf0 [ 174.820042] [] ? enqueue_hrtimer+0x380/0x380 [ 174.826094] [] ? ktime_get_update_offsets_now+0x139/0x350 [ 174.833265] [] ? hrtimer_interrupt+0x139/0x470 [ 174.839484] [] hrtimer_interrupt+0x19d/0x470 [ 174.845529] [] local_apic_timer_interrupt+0x6e/0xf0 [ 174.852184] [] smp_apic_timer_interrupt+0x76/0xa0 [ 174.858734] [] apic_timer_interrupt+0x8c/0xa0 [ 174.864898] [] ? fq_dequeue+0x6bb/0x1520 [ 174.870636] [] ? fq_dequeue+0x19/0x1520 [ 174.876259] [] ? save_stack_trace+0x26/0x50 [ 174.882399] [] ? save_stack+0x46/0xd0 [ 174.887925] [] ? kasan_slab_free+0x9b/0xb0 [ 174.893821] [] ? kfree+0xe2/0x460 [ 174.898913] [] __qdisc_run+0x15e/0x760 [ 174.904440] [] __dev_queue_xmit+0xa0e/0x1f40 [ 174.910492] [] ? __dev_queue_xmit+0x1b9/0x1f40 [ 174.916713] [] ? process_one_work+0x69b/0x1570 [ 174.922953] [] ? worker_thread+0xd7/0xf10 [ 174.928752] [] ? kthread+0x209/0x2d0 [ 174.934113] [] ? netdev_pick_tx+0x2a0/0x2a0 [ 174.940072] [] dev_queue_xmit+0xb/0x10 [ 174.945597] [] br_dev_queue_push_xmit+0x16b/0x540 [ 174.952171] [] ? nf_iterate+0x220/0x220 [ 174.957786] [] br_nf_dev_queue_xmit+0x1da/0x1780 [ 174.964181] [] br_nf_post_routing+0x981/0xe30 [ 174.970332] [] ? ebt_register_table+0xaaa/0xac0 [ 174.976643] [] ? br_nf_dev_queue_xmit+0x1780/0x1780 [ 174.983456] [] ? br_nf_pre_routing_finish+0x12d0/0x12d0 [ 174.991086] [] nf_iterate+0x13e/0x220 [ 174.996532] [] ? nf_iterate+0x220/0x220 [ 175.002156] [] nf_hook_slow+0x166/0x290 [ 175.007805] [] ? nf_iterate+0x220/0x220 [ 175.013425] [] ? nf_iterate+0x220/0x220 [ 175.019042] [] ? nf_hook_slow+0x17f/0x290 [ 175.024839] [] br_forward_finish+0x110/0x180 [ 175.030887] [] ? nf_hook_slow+0x19c/0x290 [ 175.036678] [] ? br_dev_queue_push_xmit+0x540/0x540 [ 175.043336] [] ? deliver_clone+0xa0/0xa0 [ 175.049054] [] ? nf_iterate+0x13e/0x220 [ 175.054681] [] br_nf_forward_finish+0x1ab/0x960 [ 175.060987] [] ? br_nf_local_in+0x170/0x170 [ 175.066959] [] ? br_dev_queue_push_xmit+0x540/0x540 [ 175.073612] [] ? rcu_read_lock_held+0xa4/0xc0 [ 175.079744] [] br_nf_forward_ip+0x95c/0x1290 [ 175.085821] [] ? br_nf_pre_routing_finish_bridge+0x950/0x950 [ 175.093258] [] ? __netif_receive_skb_core+0x2d8a/0x2d90 [ 175.100793] [] ? br_nf_local_in+0x170/0x170 [ 175.106754] [] ? ebt_out_hook+0x5d/0x90 [ 175.112367] [] nf_iterate+0x13e/0x220 [ 175.117807] [] ? nf_iterate+0x220/0x220 [ 175.123442] [] nf_hook_slow+0x166/0x290 [ 175.129056] [] ? nf_iterate+0x220/0x220 [ 175.134671] [] ? nf_iterate+0x220/0x220 [ 175.140286] [] __br_forward+0x34d/0x4b0 [ 175.145912] [] ? br_multicast_flood+0x4f0/0x4f0 [ 175.152221] [] ? br_dev_queue_push_xmit+0x540/0x540 [ 175.158882] [] ? br_multicast_flood+0x4f0/0x4f0 [ 175.165190] [] deliver_clone+0x4e/0xa0 [ 175.170898] [] br_flood+0x28c/0x350 [ 175.176172] [] ? br_multicast_flood+0x4f0/0x4f0 [ 175.182488] [] br_flood_forward+0x14/0x20 [ 175.188281] [] br_handle_frame_finish+0x79b/0x1e60 [ 175.194850] [] ? br_handle_local_finish+0x300/0x300 [ 175.201504] [] ? nf_hook_slow+0x19c/0x290 [ 175.207294] [] ? netlink_setsockopt+0x4b0/0x7a0 [ 175.213606] [] ? nf_iterate+0x220/0x220 [ 175.219229] [] br_nf_pre_routing_finish_ipv6+0x5ec/0xd30 [ 175.226422] [] ? br_nf_pre_routing+0xf20/0xf20 [ 175.232675] [] ? br_handle_local_finish+0x300/0x300 [ 175.239337] [] ? setup_pre_routing+0x105/0x3d0 [ 175.245565] [] br_nf_pre_routing_ipv6+0x31b/0x4c0 [ 175.252061] [] ? br_validate_ipv6+0xf00/0xf00 [ 175.258202] [] ? br_nf_pre_routing+0xf20/0xf20 [ 175.264429] [] br_nf_pre_routing+0x9e8/0xf20 [ 175.270483] [] ? ebt_register_table+0xac0/0xac0 [ 175.276793] [] ? setup_pre_routing+0x3d0/0x3d0 [ 175.283018] [] ? ebt_nat_out+0x5d/0x90 [ 175.288546] [] nf_iterate+0x13e/0x220 [ 175.293984] [] ? nf_iterate+0x220/0x220 [ 175.300551] [] nf_hook_slow+0x166/0x290 [ 175.306166] [] ? nf_iterate+0x220/0x220 [ 175.311783] [] ? nf_iterate+0x220/0x220 [ 175.317511] [] br_handle_frame+0x63a/0xf40 [ 175.323409] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 175.330417] [] ? br_handle_frame_finish+0x1e60/0x1e60 [ 175.337524] [] ? __lock_acquire+0xca1/0x5560 [ 175.343579] [] ? br_handle_local_finish+0x300/0x300 [ 175.350272] [] ? br_handle_frame_finish+0x1e60/0x1e60 [ 175.357113] [] __netif_receive_skb_core+0x5bf/0x2d90 [ 175.363953] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 175.370970] [] ? net_tx_action+0xbd0/0xbd0 [ 175.376852] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 175.383685] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 175.390432] [] ? mark_held_locks+0xc8/0x120 [ 175.396481] [] __netif_receive_skb+0x1f/0x150 [ 175.402613] [] process_backlog+0x26b/0x790 [ 175.408545] [] ? process_backlog+0x1f3/0x790 [ 175.414598] [] ? mark_held_locks+0xc8/0x120 [ 175.421003] [] net_rx_action+0x721/0xe70 [ 175.426884] [] ? sk_busy_loop+0xac0/0xac0 [ 175.432689] [] __do_softirq+0x2cc/0xa06 [ 175.438485] [] ? sched_clock+0x31/0x40 [ 175.444018] [] irq_exit+0x157/0x190 [ 175.449290] [] smp_apic_timer_interrupt+0x7b/0xa0 [ 175.455779] [] apic_timer_interrupt+0x8c/0xa0 [ 175.461929] [] ? lock_release+0x7a4/0xd30 [ 175.468471] [] ? batadv_nc_worker+0x17f/0x7e0 [ 175.474621] [] batadv_nc_worker+0x19c/0x7e0 [ 175.480579] [] ? batadv_nc_worker+0xbf/0x7e0 [ 175.486631] [] process_one_work+0x69b/0x1570 [ 175.492679] [] ? process_one_work+0x5f6/0x1570 [ 175.499183] [] ? finish_task_switch+0x14d/0x660 [ 175.505510] [] ? cancel_delayed_work_sync+0x10/0x10 [ 175.512294] [] worker_thread+0xd7/0xf10 [ 175.517913] [] ? __schedule+0x918/0x1c00 [ 175.523614] [] ? process_one_work+0x1570/0x1570 [ 175.529925] [] kthread+0x209/0x2d0 [ 175.535111] [] ? kthread_create_on_node+0x390/0x390 [ 175.541773] [] ret_from_fork+0x22/0x50 [ 175.547303] [] ? kthread_create_on_node+0x390/0x390