rcu: INFO: rcu_sched detected stalls on CPUs/tasks: rcu: (detected by 0, t=100002 jiffies, g=87057, q=142) rcu: All QSes seen, last rcu_sched kthread activity 100002 (4294999961-4294899959), jiffies_till_next_fqs=3, root ->qsmask 0x0 blkid R running task 58392 7862 4766 0x00000008 Call Trace: sched_show_task+0x5e7/0x730 kernel/sched/core.c:5304 print_other_cpu_stall kernel/rcu/tree.c:1430 [inline] check_cpu_stall kernel/rcu/tree.c:1557 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0x2278/0x2760 kernel/rcu/tree.c:2665 update_process_times+0x132/0x1a0 kernel/time/timer.c:1636 tick_sched_handle kernel/time/tick-sched.c:164 [inline] tick_sched_timer+0x3a6/0x500 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0xbfc/0x15b0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x458/0x13d0 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1029 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1057 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:869 RIP: 0010:lowmem_page_address include/linux/mm.h:1158 [inline] RIP: 0010:msan_get_shadow_origin_ptr+0x1f9/0x2e0 mm/kmsan/kmsan_instr.c:314 Code: 05 48 be 00 b0 aa aa aa aa aa aa 48 0f af c6 4c 09 e8 48 01 d0 74 6d 41 81 e7 fc 0f 00 00 48 03 4f 48 48 c1 e9 05 48 0f af ce <48> 01 d1 49 89 c6 4c 01 f9 48 89 cb 75 4c 0f 0b eb fe 4c 89 ff e8 RSP: 0018:ffff88012902f750 EFLAGS: 00000a07 ORIG_RAX: ffffffffffffff13 RAX: ffff88012b7bf838 RBX: ffffffff8a544000 RCX: 000000012885f000 RDX: ffff880000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0006f611a0 RBP: ffff88012902f7a0 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81179a80 R12: 0000000000000004 R13: 0000000000000838 R14: ffffffff8a543000 R15: 0000000000000838 __msan_metadata_ptr_for_load_4+0x10/0x20 mm/kmsan/kmsan_instr.c:349 csd_lock_wait kernel/smp.c:108 [inline] smp_call_function_single+0x373/0x4e0 kernel/smp.c:302 smp_call_function_many+0x658/0xdb0 kernel/smp.c:434 on_each_cpu_mask kernel/smp.c:634 [inline] on_each_cpu_cond+0x322/0x3f0 kernel/smp.c:686 invalidate_bh_lrus+0x54/0x60 fs/buffer.c:1400 kill_bdev fs/block_dev.c:85 [inline] __blkdev_put+0x460/0xc90 fs/block_dev.c:1790 blkdev_put+0x431/0x560 fs/block_dev.c:1858 blkdev_close+0xa6/0xf0 fs/block_dev.c:1865 __fput+0x4cf/0xc20 fs/file_table.c:278 ____fput+0x37/0x40 fs/file_table.c:309 task_work_run+0x22e/0x2b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop arch/x86/entry/common.c:166 [inline] prepare_exit_to_usermode+0x33e/0x410 arch/x86/entry/common.c:197 syscall_return_slowpath+0xdb/0x700 arch/x86/entry/common.c:268 do_syscall_64+0x1ab/0x220 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x7f3dbf9ca2b0 Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24 RSP: 002b:00007fff76c183a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3dbf9ca2b0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000028 R09: 0000000001680000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000d68030 R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 rcu: rcu_sched kthread starved for 100002 jiffies! g87057 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_sched R running task 61864 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2829 [inline] __schedule+0x657/0x760 kernel/sched/core.c:3479 schedule+0x1bc/0x2d0 kernel/sched/core.c:3523 schedule_timeout+0x3f0/0x580 kernel/time/timer.c:1804 rcu_gp_kthread+0x2281/0x3990 kernel/rcu/tree.c:2194 kthread+0x465/0x4a0 kernel/kthread.c:247 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:416