net_ratelimit: 12 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: (detected by 0, t=10502 jiffies, g=145069, q=162) rcu: All QSes seen, last rcu_preempt kthread activity 10501 (4295092765-4295082264), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.3 R running task 25736 15068 7596 0x00000000 Call Trace: sched_show_task kernel/sched/core.c:5338 [inline] sched_show_task.cold+0x291/0x2fc kernel/sched/core.c:5313 print_other_cpu_stall kernel/rcu/tree.c:1313 [inline] check_cpu_stall kernel/rcu/tree.c:1441 [inline] rcu_pending kernel/rcu/tree.c:3103 [inline] rcu_sched_clock_irq.cold+0xa10/0xa4a kernel/rcu/tree.c:2544 update_process_times+0x32/0x80 kernel/time/timer.c:1635 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:161 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1271 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x33e/0xde0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x120/0x570 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:lock_acquire+0x1ea/0x3f0 kernel/locking/lockdep.c:4205 Code: 7c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 c7 01 00 00 48 83 3d d2 fa 3a 07 00 0f 84 3b 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b RSP: 0018:ffff88802c7cf370 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff11252b6 RBX: ffff888096480580 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff88802c7cf3b8 R08: 00000000e4ec174e R09: ffffffff895e57b4 R10: ffff888096480e28 R11: ffff888096480580 R12: ffffffff889a5b00 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 rcu_lock_acquire include/linux/rcupdate.h:210 [inline] rcu_read_lock+0x29/0x70 include/linux/rcupdate.h:595 mem_cgroup_iter+0x19a/0xb00 mm/memcontrol.c:941 shrink_node+0x211/0x1660 mm/vmscan.c:2758 shrink_zones mm/vmscan.c:3028 [inline] do_try_to_free_pages+0x3cb/0x11e0 mm/vmscan.c:3090 try_to_free_mem_cgroup_pages+0x2dd/0xa30 mm/vmscan.c:3393 try_charge+0x5bd/0x1790 mm/memcontrol.c:2252 __memcg_kmem_charge_memcg+0x7c/0x130 mm/memcontrol.c:2616 __memcg_kmem_charge+0x136/0x300 mm/memcontrol.c:2649 __alloc_pages_nodemask+0x437/0x7e0 mm/page_alloc.c:4739 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] pipe_write+0x659/0xf30 fs/pipe.c:441 call_write_iter include/linux/fs.h:1863 [inline] new_sync_write+0x4c7/0x760 fs/read_write.c:474 __vfs_write+0xe4/0x110 fs/read_write.c:487 vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_write+0xea/0x1f0 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457f29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9f8e6d1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f29 RDX: 000000010000014c RSI: 0000000020000340 RDI: 000000000000000f RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9f8e6d26d4 R13: 00000000004c3cdf R14: 00000000004dc5e8 R15: 00000000ffffffff rcu: rcu_preempt kthread starved for 10553 jiffies! g145069 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 29304 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_timeout+0x4db/0xfd0 kernel/time/timer.c:1803 rcu_gp_fqs_loop kernel/rcu/tree.c:1971 [inline] rcu_gp_kthread+0x962/0x17b0 kernel/rcu/tree.c:2128 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1