INFO: rcu detected stall in do

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	INFO: rcu detected stall in do_signal (4)				3	1049d	1091d	0/1	auto-closed as invalid on 2022/05/09 06:50
upstream	INFO: rcu detected stall in do_signal (3) cgroups mm				2	1816d	1816d	0/28	closed as invalid on 2019/12/04 14:04
linux-4.19	INFO: rcu detected stall in do_signal (2)				1	1776d	1776d	0/1	auto-closed as invalid on 2020/05/11 22:29
upstream	INFO: rcu detected stall in do_signal kernel				2	2215d	2234d	0/28	auto-closed as invalid on 2019/04/28 15:41
linux-4.14	INFO: rcu detected stall in do_signal (2)				1	1360d	1360d	0/1	auto-closed as invalid on 2021/07/02 05:05
linux-4.14	INFO: rcu detected stall in do_signal				7	1487d	1801d	0/1	auto-closed as invalid on 2021/02/24 19:41
linux-4.19	INFO: rcu detected stall in do_signal (3)				6	1324d	1626d	0/1	auto-closed as invalid on 2021/08/06 21:07
upstream	INFO: rcu detected stall in do_signal (2) mm				3	1821d	1821d	0/28	closed as invalid on 2019/11/29 14:24
upstream	INFO: rcu detected stall in do_signal (4) kernel	C	done	error	30	1570d	1797d	0/28	closed as invalid on 2022/02/08 10:44

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 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: (detected by 0, t=10715 jiffies, g=465505, q=3423) rcu: All QSes seen, last rcu_preempt kthread activity 3286 (4295277383-4295274097), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.4 R running task 28760 3790 7792 0x80000000 Call Trace: <IRQ> sched_show_task kernel/sched/core.c:5297 [inline] sched_show_task.cold+0x292/0x30b kernel/sched/core.c:5272 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:3293 [inline] rcu_pending kernel/rcu/tree.c:3336 [inline] rcu_check_callbacks.cold+0xaa1/0xd93 kernel/rcu/tree.c:2682 update_process_times+0x32/0x80 kernel/time/timer.c:1636 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:164 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x33e/0xde0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x120/0x570 arch/x86/kernel/apic/apic.c:1054 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:867 </IRQ> RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x50 kernel/kcov.c:100 Code: 87 ea ff 48 c7 05 84 23 cb 08 00 00 00 00 e9 ca e9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 8b 75 08 <65> 48 8b 04 25 40 ee 01 00 65 8b 15 a8 a8 96 7e 81 e2 00 01 1f 00 RSP: 0018:ffff88805d9df7e0 EFLAGS: 00000213 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff819afca4 RDX: 01fffc0000000000 RSI: ffffffff819afcb7 RDI: 0000000000000007 RBP: ffff88805d9df7e0 R08: ffff88809c6782c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0001957b40 R13: ffffea0001957b40 R14: ffff88807f02bae8 R15: 000000000000015b __read_once_size include/linux/compiler.h:193 [inline] compound_head include/linux/page-flags.h:142 [inline] PageSwapBacked include/linux/page-flags.h:295 [inline] PageSwapCache include/linux/page-flags.h:340 [inline] free_swap_cache mm/swap_state.c:290 [inline] free_pages_and_swap_cache+0x127/0x3d0 mm/swap_state.c:318 tlb_flush_mmu_free+0x7e/0x150 mm/memory.c:249 tlb_flush_mmu mm/memory.c:258 [inline] arch_tlb_finish_mmu+0x225/0x520 mm/memory.c:273 tlb_finish_mmu+0x9e/0x100 mm/memory.c:432 exit_mmap+0x2e2/0x530 mm/mmap.c:3094 __mmput kernel/fork.c:1001 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1022 exit_mm kernel/exit.c:546 [inline] do_exit+0x838/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:979 get_signal+0x399/0x1d50 kernel/signal.c:2572 do_signal+0x95/0x1950 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: Bad RIP value. RSP: 002b:00007f38aea26cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000073bf08 RCX: 0000000000458da9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000073bf08 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000073bf0c R13: 00007ffea609a56f R14: 00007f38aea279c0 R15: 000000000073bf0c rcu: rcu_preempt kthread starved for 3286 jiffies! g465505 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 29008 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x813/0x1d00 kernel/sched/core.c:3474 schedule+0x92/0x1c0 kernel/sched/core.c:3518 schedule_timeout+0x4db/0xfd0 kernel/time/timer.c:1804 rcu_gp_kthread+0xd5c/0x2190 kernel/rcu/tree.c:2202 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 net_ratelimit: 2 callbacks suppressed 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 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1