DUID 00:04:92:3d:a4:bf:d8:99:95:1d:d2:9f:0e:34:7d:20:a7:e6 forked to background, child pid 3172 [ 26.268772][ T3173] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.283750][ T3173] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 76.173966][ T140] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.168' (ECDSA) to the list of known hosts. [ 712.892593][ T3636] cgroup: Unknown subsys name 'net' [ 713.000238][ T3636] cgroup: Unknown subsys name 'rlimit' [ 713.191030][ T3638] chnl_net:caif_netlink_parms(): no params data found [ 713.232613][ T3638] bridge0: port 1(bridge_slave_0) entered blocking state [ 713.240247][ T3638] bridge0: port 1(bridge_slave_0) entered disabled state [ 713.248335][ T3638] device bridge_slave_0 entered promiscuous mode [ 713.256999][ T3638] bridge0: port 2(bridge_slave_1) entered blocking state [ 713.264269][ T3638] bridge0: port 2(bridge_slave_1) entered disabled state [ 713.271882][ T3638] device bridge_slave_1 entered promiscuous mode [ 713.291271][ T3638] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 713.301987][ T3638] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 713.324624][ T3638] team0: Port device team_slave_0 added [ 713.331627][ T3638] team0: Port device team_slave_1 added [ 713.349497][ T3638] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 713.356595][ T3638] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 713.382606][ T3638] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 713.395025][ T3638] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 713.401955][ T3638] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 713.427906][ T3638] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 713.453769][ T3638] device hsr_slave_0 entered promiscuous mode [ 713.460774][ T3638] device hsr_slave_1 entered promiscuous mode [ 713.541009][ T3638] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 713.553299][ T3638] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 713.561618][ T3638] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 713.571057][ T3638] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 713.591960][ T3638] bridge0: port 2(bridge_slave_1) entered blocking state [ 713.599165][ T3638] bridge0: port 2(bridge_slave_1) entered forwarding state [ 713.606921][ T3638] bridge0: port 1(bridge_slave_0) entered blocking state [ 713.614005][ T3638] bridge0: port 1(bridge_slave_0) entered forwarding state [ 713.659429][ T3638] 8021q: adding VLAN 0 to HW filter on device bond0 [ 713.671213][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 713.680740][ T3644] bridge0: port 1(bridge_slave_0) entered disabled state [ 713.690214][ T3644] bridge0: port 2(bridge_slave_1) entered disabled state [ 713.698224][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 713.710692][ T3638] 8021q: adding VLAN 0 to HW filter on device team0 [ 713.721117][ T3637] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 713.730601][ T3637] bridge0: port 1(bridge_slave_0) entered blocking state [ 713.737734][ T3637] bridge0: port 1(bridge_slave_0) entered forwarding state [ 713.750242][ T3637] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 713.758778][ T3637] bridge0: port 2(bridge_slave_1) entered blocking state [ 713.765879][ T3637] bridge0: port 2(bridge_slave_1) entered forwarding state [ 713.784037][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 713.793774][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 713.805950][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 713.816521][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 713.828354][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 713.837942][ T3638] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 713.854383][ T3646] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 713.861734][ T3646] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 713.874592][ T3638] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 713.983725][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 713.993073][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 714.001217][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 714.009395][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 714.019274][ T3638] device veth0_vlan entered promiscuous mode [ 714.030077][ T3638] device veth1_vlan entered promiscuous mode [ 714.048110][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 714.056409][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 714.066131][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 714.076318][ T3638] device veth0_macvtap entered promiscuous mode [ 714.086330][ T3638] device veth1_macvtap entered promiscuous mode [ 714.102766][ T3638] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 714.110129][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 714.120479][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 714.131387][ T3638] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 714.140684][ T3644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 714.150222][ T3638] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 714.159936][ T3638] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 714.168857][ T3638] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 714.177820][ T3638] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 802.852943][ C0] hrtimer: interrupt took 88618776082 ns [ 907.892075][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 907.899101][ C1] rcu: 0-...!: (1 GPs behind) idle=a59/1/0x4000000000000000 softirq=5468/5472 fqs=5 [ 907.909178][ C1] (detected by 1, t=10502 jiffies, g=4825, q=140) [ 907.915713][ C1] Sending NMI from CPU 1 to CPUs 0: [ 907.920925][ C0] NMI backtrace for cpu 0 [ 907.920934][ C0] CPU: 0 PID: 3644 Comm: kworker/0:1 Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 [ 907.920954][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 907.920995][ C0] Workqueue: events_power_efficient gc_worker [ 907.921188][ C0] RIP: 0010:__lock_acquire+0x1460/0x56c0 [ 907.921231][ C0] Code: 0f b7 db be 08 00 00 00 48 89 d8 48 c1 f8 06 48 8d 3c c5 80 59 01 90 e8 fe 54 67 00 48 0f a3 1d f6 ed a3 0e 0f 83 2c 06 00 00 <48> 8d 1c 5b 48 c1 e3 06 48 81 c3 a0 5d 01 90 48 8d 7b 40 48 b8 00 [ 907.921251][ C0] RSP: 0018:ffffc90000007be0 EFLAGS: 00000047 [ 907.921266][ C0] RAX: 0000000000000001 RBX: 0000000000000029 RCX: ffffffff815d6b82 [ 907.921280][ C0] RDX: fffffbfff2002b31 RSI: 0000000000000008 RDI: ffffffff90015980 [ 907.921294][ C0] RBP: ffff88801bc4a842 R08: 0000000000000000 R09: ffffffff90015987 [ 907.921308][ C0] R10: fffffbfff2002b30 R11: 0000000000000001 R12: ffff88801bc4a820 [ 907.921322][ C0] R13: ffff88801bc49d40 R14: 0000000000000001 R15: 3d0b7b89c89fff91 [ 907.921336][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 907.921360][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 907.921375][ C0] CR2: 0000000020000600 CR3: 0000000076bbe000 CR4: 00000000003506f0 [ 907.921389][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 907.921401][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 907.921414][ C0] Call Trace: [ 907.921419][ C0] [ 907.921432][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 907.921466][ C0] lock_acquire+0x1ab/0x510 [ 907.921491][ C0] ? __hrtimer_run_queues+0x243/0xe50 [ 907.921551][ C0] ? lock_release+0x720/0x720 [ 907.921581][ C0] _raw_spin_lock_irq+0x32/0x50 [ 907.921651][ C0] ? __hrtimer_run_queues+0x243/0xe50 [ 907.921676][ C0] __hrtimer_run_queues+0x243/0xe50 [ 907.921704][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 907.921730][ C0] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 907.921762][ C0] hrtimer_interrupt+0x31c/0x790 [ 907.921791][ C0] __sysvec_apic_timer_interrupt+0x146/0x530 [ 907.921847][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 907.921876][ C0] [ 907.921881][ C0] [ 907.921887][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 907.921915][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 [ 907.921952][ C0] Code: 48 89 ef 5d e9 51 f3 4a 00 5d be 03 00 00 00 e9 96 96 74 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 29 49 89 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b [ 907.921970][ C0] RSP: 0018:ffffc90003ccfc30 EFLAGS: 00000293 [ 907.921987][ C0] RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000000 [ 907.921999][ C0] RDX: ffff88801bc49d40 RSI: ffffffff87821df7 RDI: 0000000000000003 [ 907.922013][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff90015a17 [ 907.922026][ C0] R10: ffffffff87821ded R11: 0000000000000001 R12: dffffc0000000000 [ 907.922040][ C0] R13: 0000000000000000 R14: 0000000000040000 R15: 0000000000040000 [ 907.922055][ C0] ? gc_worker+0x23d/0x12b0 [ 907.922080][ C0] ? gc_worker+0x247/0x12b0 [ 907.922107][ C0] gc_worker+0x24d/0x12b0 [ 907.922133][ C0] ? lock_release+0x720/0x720 [ 907.922159][ C0] ? nf_ct_kill_acct+0xc0/0xc0 [ 907.922188][ C0] process_one_work+0x996/0x1610 [ 907.922227][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 907.922250][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 907.922277][ C0] ? _raw_spin_lock_irq+0x41/0x50 [ 907.922303][ C0] worker_thread+0x665/0x1080 [ 907.922326][ C0] ? __kthread_parkme+0x15f/0x220 [ 907.922360][ C0] ? process_one_work+0x1610/0x1610 [ 907.922381][ C0] kthread+0x2e9/0x3a0 [ 907.922422][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 907.922452][ C0] ret_from_fork+0x1f/0x30 [ 907.922488][ C0] [ 907.922495][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.570 msecs [ 907.922919][ C1] rcu: rcu_preempt kthread starved for 10492 jiffies! g4825 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 908.311859][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 908.321827][ C1] rcu: RCU grace-period kthread stack dump: [ 908.327706][ C1] task:rcu_preempt state:R running task stack:28752 pid: 16 ppid: 2 flags:0x00004000 [ 908.338490][ C1] Call Trace: [ 908.341770][ C1] [ 908.344709][ C1] __schedule+0xa94/0x4910 [ 908.349152][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 908.354358][ C1] ? __mod_timer+0x83c/0xe30 [ 908.358966][ C1] ? io_schedule_timeout+0x140/0x140 [ 908.364270][ C1] ? debug_object_free+0x350/0x350 [ 908.369447][ C1] schedule+0xd2/0x1f0 [ 908.373534][ C1] schedule_timeout+0x14a/0x2a0 [ 908.378394][ C1] ? usleep_range_state+0x1b0/0x1b0 [ 908.383606][ C1] ? destroy_timer_on_stack+0x20/0x20 [ 908.388988][ C1] ? hci_se_io+0x30/0x110 [ 908.393377][ C1] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 908.399195][ C1] ? prepare_to_swait_event+0xee/0x470 [ 908.404698][ C1] rcu_gp_fqs_loop+0x186/0x810 [ 908.409501][ C1] ? force_qs_rnp+0x800/0x800 [ 908.414197][ C1] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 908.420023][ C1] rcu_gp_kthread+0x1de/0x320 [ 908.424715][ C1] ? rcu_gp_init+0x1420/0x1420 [ 908.429499][ C1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 908.435755][ C1] ? __kthread_parkme+0x15f/0x220 [ 908.440804][ C1] ? rcu_gp_init+0x1420/0x1420 [ 908.445589][ C1] kthread+0x2e9/0x3a0 [ 908.449674][ C1] ? kthread_complete_and_exit+0x40/0x40 [ 908.455329][ C1] ret_from_fork+0x1f/0x30 [ 908.459775][ C1] [ 908.462798][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 908.469115][ C1] NMI backtrace for cpu 1 [ 908.473437][ C1] CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 [ 908.482978][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 908.493034][ C1] Workqueue: events_unbound toggle_allocation_gate [ 908.499598][ C1] Call Trace: [ 908.502877][ C1] [ 908.505718][ C1] dump_stack_lvl+0xcd/0x134 [ 908.510358][ C1] nmi_cpu_backtrace.cold+0x47/0x144 [ 908.515653][ C1] ? lapic_can_unplug_cpu+0x80/0x80 [ 908.520859][ C1] nmi_trigger_cpumask_backtrace+0x1e6/0x230 [ 908.526863][ C1] rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 [ 908.533477][ C1] ? do_raw_spin_unlock+0x171/0x230 [ 908.538696][ C1] rcu_sched_clock_irq+0x21ae/0x22a0 [ 908.544345][ C1] ? rcutree_dead_cpu+0x30/0x30 [ 908.549196][ C1] ? timekeeping_advance+0x978/0xe30 [ 908.554517][ C1] ? tick_sched_do_timer+0x470/0x470 [ 908.559829][ C1] update_process_times+0x16d/0x200 [ 908.565037][ C1] tick_sched_handle+0x9b/0x180 [ 908.569903][ C1] tick_sched_timer+0xee/0x120 [ 908.574671][ C1] __hrtimer_run_queues+0x1c0/0xe50 [ 908.579887][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 908.585879][ C1] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 908.591971][ C1] hrtimer_interrupt+0x31c/0x790 [ 908.596937][ C1] __sysvec_apic_timer_interrupt+0x146/0x530 [ 908.602939][ C1] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 908.608581][ C1] [ 908.611507][ C1] [ 908.614435][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 908.620427][ C1] RIP: 0010:check_kcov_mode+0xf/0x40 [ 908.625731][ C1] Code: 7c 24 08 e8 b3 9b 4b 00 e9 61 fd ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc 65 8b 05 79 4d 89 7e 89 c2 81 e2 00 01 00 00 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 ac 15 00 00 85 d2 74 [ 908.645345][ C1] RSP: 0018:ffffc90000b679c8 EFLAGS: 00000246 [ 908.651415][ C1] RAX: 0000000000000001 RBX: ffff8880b9c42380 RCX: 0000000000000001 [ 908.659386][ C1] RDX: 0000000000000000 RSI: ffff888016df8000 RDI: 0000000000000003 [ 908.667359][ C1] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 [ 908.675327][ C1] R10: ffffffff816d99aa R11: 0000000000000000 R12: ffffed1017388471 [ 908.683298][ C1] R13: 0000000000000000 R14: ffff8880b9c42388 R15: 0000000000000001 [ 908.691272][ C1] ? smp_call_function_many_cond+0x50a/0xc90 [ 908.697309][ C1] __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 908.703391][ C1] smp_call_function_many_cond+0x50a/0xc90 [ 908.709216][ C1] ? optimize_nops+0x2d0/0x2d0 [ 908.714028][ C1] ? optimize_nops+0x2d0/0x2d0 [ 908.718804][ C1] on_each_cpu_cond_mask+0x56/0xa0 [ 908.723927][ C1] ? kmem_cache_alloc+0xaf/0x3b0 [ 908.728906][ C1] text_poke_bp_batch+0x3e9/0x6b0 [ 908.733953][ C1] ? do_sync_core+0x20/0x20 [ 908.738466][ C1] ? __jump_label_patch+0x159/0x1b0 [ 908.743682][ C1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 908.749937][ C1] ? __jump_label_update+0x351/0x400 [ 908.755257][ C1] text_poke_finish+0x16/0x30 [ 908.759944][ C1] arch_jump_label_transform_apply+0x13/0x20 [ 908.765933][ C1] jump_label_update+0x32f/0x410 [ 908.770882][ C1] static_key_enable_cpuslocked+0x1b1/0x260 [ 908.776785][ C1] static_key_enable+0x16/0x20 [ 908.781557][ C1] toggle_allocation_gate+0x100/0x390 [ 908.786940][ C1] ? lock_release+0x720/0x720 [ 908.791628][ C1] ? wake_up_kfence_timer+0x20/0x20 [ 908.796838][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 908.802841][ C1] process_one_work+0x996/0x1610 [ 908.807799][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 908.813180][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 908.818128][ C1] ? _raw_spin_lock_irq+0x41/0x50 [ 908.823175][ C1] worker_thread+0x665/0x1080 [ 908.827876][ C1] ? process_one_work+0x1610/0x1610 [ 908.833081][ C1] kthread+0x2e9/0x3a0 [ 908.837160][ C1] ? kthread_complete_and_exit+0x40/0x40 [ 908.842810][ C1] ret_from_fork+0x1f/0x30 [ 908.847256][ C1]