IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready hrtimer: interrupt took 53762 ns INFO: rcu_sched detected stalls on CPUs/tasks: (detected by 0, t=10502 jiffies, g=-99, c=-100, q=1) All QSes seen, last rcu_sched kthread activity 10498 (4294954487-4294943989), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.5 R running task 28256 7748 7475 0x00000004 0000000000001d33 ffff88012c007ca8 ffffffff813d414c ffffffff81615a00 0000000041b58ab3 ffffffff868f20bf ffffffff813d3ec0 ffff88012c007c68 ffffffff81491fd4 0000000000000000 ffffffff87651000 0000000000000002 Call Trace: [] sched_show_task+0x28c/0x400 kernel/sched/core.c:4976 [] print_other_cpu_stall kernel/rcu/tree.c:1317 [inline] [] check_cpu_stall kernel/rcu/tree.c:1423 [inline] [] __rcu_pending kernel/rcu/tree.c:3883 [inline] [] rcu_pending kernel/rcu/tree.c:3947 [inline] [] rcu_check_callbacks+0x1c5c/0x2010 kernel/rcu/tree.c:2772 [] update_process_times+0x34/0x60 kernel/time/timer.c:1420 [] tick_sched_handle.isra.19+0x44/0xe0 kernel/time/tick-sched.c:151 [] tick_sched_timer+0x64/0xd0 kernel/time/tick-sched.c:1178 [] __run_hrtimer kernel/time/hrtimer.c:1242 [inline] [] __hrtimer_run_queues+0x2d4/0xbf0 kernel/time/hrtimer.c:1306 [] hrtimer_interrupt+0x19d/0x470 kernel/time/hrtimer.c:1340 [] local_apic_timer_interrupt+0x6e/0xf0 arch/x86/kernel/apic/apic.c:907 [] smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:931 [] apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:621 [] ? arch_local_irq_restore arch/x86/include/asm/paravirt.h:791 [inline] [] ? __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:162 [inline] [] ? _raw_spin_unlock_irqrestore+0x97/0xd0 kernel/locking/spinlock.c:191 [] spin_unlock_irqrestore include/linux/spinlock.h:362 [inline] [] force_sig_info+0x1f5/0x2a0 kernel/signal.c:1180 [] force_sig_info_fault.constprop.30+0x194/0x290 arch/x86/mm/fault.c:244 [] __bad_area_nosemaphore+0x228/0x410 arch/x86/mm/fault.c:868 [] __bad_area arch/x86/mm/fault.c:898 [inline] [] bad_area+0x64/0x80 arch/x86/mm/fault.c:904 [] __do_page_fault+0x6f4/0x9e0 arch/x86/mm/fault.c:1331 [] do_page_fault+0x4a/0x60 arch/x86/mm/fault.c:1414 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:917 rcu_sched kthread starved for 10498 jiffies! g18446744073709551517 c18446744073709551516 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 rcu_sched R running task 29392 8 2 0x00000000 ffff88012b07fac8 ffff88012c120400 ffff88012c120d90 ffff88012c120d68 ffff88012c120418 ffff88012b0701c8 1ffff10000000000 ffff88012b05a180 ffff88012b0701c0 ffff88012b078000 ffffed002560f001 ffff88012b078008 Call Trace: [] schedule+0x9a/0x1c0 kernel/sched/core.c:3250 [] schedule_timeout+0x2e5/0x670 kernel/time/timer.c:1531 [] rcu_gp_kthread+0xee2/0x1f70 kernel/rcu/tree.c:2126 [] kthread+0x209/0x2d0 kernel/kthread.c:209 [] ret_from_fork+0x22/0x50 arch/x86/entry/entry_64.S:392 sched: RT throttling activated INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 0, t=10538 jiffies, g=2069, c=2068, q=104) All QSes seen, last rcu_preempt kthread activity 10537 (4294954526-4294943989), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.5 R running task 28256 7748 7475 0x0000000c 0000000000001d33 ffff88012c007ca8 ffffffff813d414c ffffffff81615a00 0000000041b58ab3 ffffffff868f20bf ffffffff813d3ec0 ffff88012c007c68 ffffffff81491fd4 0000000000000000 ffffffff87651000 0000000000000002 Call Trace: [] sched_show_task+0x28c/0x400 kernel/sched/core.c:4976 [] print_other_cpu_stall kernel/rcu/tree.c:1317 [inline] [] check_cpu_stall kernel/rcu/tree.c:1423 [inline] [] __rcu_pending kernel/rcu/tree.c:3883 [inline] [] rcu_pending kernel/rcu/tree.c:3947 [inline] [] rcu_check_callbacks+0x1c5c/0x2010 kernel/rcu/tree.c:2772 [] update_process_times+0x34/0x60 kernel/time/timer.c:1420 [] tick_sched_handle.isra.19+0x44/0xe0 kernel/time/tick-sched.c:151 [] tick_sched_timer+0x64/0xd0 kernel/time/tick-sched.c:1178 [] __run_hrtimer kernel/time/hrtimer.c:1242 [inline] [] __hrtimer_run_queues+0x2d4/0xbf0 kernel/time/hrtimer.c:1306 [] hrtimer_interrupt+0x19d/0x470 kernel/time/hrtimer.c:1340 [] local_apic_timer_interrupt+0x6e/0xf0 arch/x86/kernel/apic/apic.c:907 [] smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:931 [] apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:621 [] ? arch_local_irq_restore arch/x86/include/asm/paravirt.h:791 [inline] [] ? __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:162 [inline] [] ? _raw_spin_unlock_irqrestore+0x97/0xd0 kernel/locking/spinlock.c:191 [] spin_unlock_irqrestore include/linux/spinlock.h:362 [inline] [] force_sig_info+0x1f5/0x2a0 kernel/signal.c:1180 [] force_sig_info_fault.constprop.30+0x194/0x290 arch/x86/mm/fault.c:244 [] __bad_area_nosemaphore+0x228/0x410 arch/x86/mm/fault.c:868 [] __bad_area arch/x86/mm/fault.c:898 [inline] [] bad_area+0x64/0x80 arch/x86/mm/fault.c:904 [] __do_page_fault+0x6f4/0x9e0 arch/x86/mm/fault.c:1331 [] do_page_fault+0x4a/0x60 arch/x86/mm/fault.c:1414 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:917 rcu_preempt kthread starved for 10537 jiffies! g2069 c2068 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 rcu_preempt R running task 29392 7 2 0x00000000 ffff88012b06fac8 ffff88012c120400 ffff88012c120d90 ffff88012c120d68 ffff88012c120418 ffff88012b05a188 1ffff10000000000 ffff880129d64400 ffff88012b05a180 ffff88012b068000 ffffed002560d001 ffff88012b068008 Call Trace: [] schedule+0x9a/0x1c0 kernel/sched/core.c:3250 [] schedule_timeout+0x2e5/0x670 kernel/time/timer.c:1531 [] rcu_gp_kthread+0xee2/0x1f70 kernel/rcu/tree.c:2126 [] kthread+0x209/0x2d0 kernel/kthread.c:209 [] ret_from_fork+0x22/0x50 arch/x86/entry/entry_64.S:392