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:
	(detected by 1, t=10502 jiffies, g=420173, q=363)
rcu: All QSes seen, last rcu_preempt kthread activity 10451 (4295177115-4295166664), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.2  R  running task    25120  9425   7937 0x80004002
Call Trace:
 <IRQ>
 sched_show_task+0x348/0x400 kernel/sched/core.c:5935
 print_other_cpu_stall kernel/rcu/tree_stall.h:410 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:538 [inline]
 rcu_pending kernel/rcu/tree.c:2795 [inline]
 rcu_sched_clock_irq+0x1867/0x1ae0 kernel/rcu/tree.c:2244
 update_process_times+0x12d/0x180 kernel/time/timer.c:1726
 tick_sched_handle kernel/time/tick-sched.c:167 [inline]
 tick_sched_timer+0x263/0x420 kernel/time/tick-sched.c:1299
 __run_hrtimer kernel/time/hrtimer.c:1514 [inline]
 __hrtimer_run_queues+0x403/0x840 kernel/time/hrtimer.c:1576
 hrtimer_interrupt+0x38c/0xda0 kernel/time/hrtimer.c:1638
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0x109/0x280 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:756 [inline]
RIP: 0010:lock_release+0x4c7/0x780 kernel/locking/lockdep.c:4509
Code: 48 c1 e8 03 80 3c 10 00 74 0c 48 c7 c7 f0 91 8a 88 e8 5d e8 53 00 48 83 3d 65 02 32 07 00 0f 84 8c 02 00 00 48 8b 7d 88 57 9d <0f> 1f 44 00 00 65 48 8b 04 25 28 00 00 00 48 3b 45 d0 0f 85 70 02
RSP: 0018:ffff8882100e7140 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff111523e RBX: ffff88803c7a0c08 RCX: ffffffff81589367
RDX: dffffc0000000000 RSI: ffff88803c7a0cd8 RDI: 0000000000000282
RBP: ffff8882100e71c0 R08: dffffc0000000000 R09: fffffbfff117cc15
R10: fffffbfff117cc15 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000000 R14: 2aba529f776bbc40 R15: 000000000004009a
 __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline]
 _raw_spin_unlock+0x1a/0x50 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:378 [inline]
 task_unlock include/linux/sched/task.h:173 [inline]
 oom_badness+0x4e2/0x590 mm/oom_kill.c:229
 oom_evaluate_task+0x2f7/0x490 mm/oom_kill.c:342
 mem_cgroup_scan_tasks+0x86/0x100 mm/memcontrol.c:1215
 select_bad_process mm/oom_kill.c:368 [inline]
 out_of_memory+0x245/0x8b0 mm/oom_kill.c:1097
 mem_cgroup_out_of_memory mm/memcontrol.c:1593 [inline]
 mem_cgroup_oom mm/memcontrol.c:1925 [inline]
 try_charge+0x125a/0x1910 mm/memcontrol.c:2612
 mem_cgroup_try_charge+0x20c/0x680 mm/memcontrol.c:6504
 mem_cgroup_try_charge_delay+0x25/0xa0 mm/memcontrol.c:6519
 wp_page_copy+0x349/0x1890 mm/memory.c:2333
 do_wp_page+0x5e5/0x1cc0 mm/memory.c:2566
 handle_pte_fault mm/memory.c:3865 [inline]
 __handle_mm_fault mm/memory.c:3973 [inline]
 handle_mm_fault+0x2ada/0x5ff0 mm/memory.c:4010
 do_user_addr_fault+0x589/0xaf0 arch/x86/mm/fault.c:1441
 __do_page_fault+0xd3/0x1f0 arch/x86/mm/fault.c:1506
 do_page_fault+0x99/0xb0 arch/x86/mm/fault.c:1530
 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1202
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 arch/x86/lib/copy_user_64.S:205
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4
RSP: 0018:ffff8882100e7a18 EFLAGS: 00010206
RAX: ffffffff83433b01 RBX: 0000000020125500 RCX: 0000000000000500
RDX: 0000000000001000 RSI: ffff88820c15bb00 RDI: 0000000020125000
RBP: ffff8882100e7a48 R08: dffffc0000000000 R09: ffffed104182b800
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000001000
R13: 00007ffffffff000 R14: ffff88820c15b000 R15: 0000000020124500
 copy_page_to_iter_iovec lib/iov_iter.c:211 [inline]
 copy_page_to_iter+0x3ed/0xcb0 lib/iov_iter.c:900
 pipe_to_user+0xb3/0x160 fs/splice.c:1248
 splice_from_pipe_feed fs/splice.c:500 [inline]
 __splice_from_pipe+0x2f7/0x8a0 fs/splice.c:624
 vmsplice_to_user fs/splice.c:1272 [inline]
 do_vmsplice+0x1d4/0xdf0 fs/splice.c:1350
 __do_sys_vmsplice fs/splice.c:1371 [inline]
 __se_sys_vmsplice+0x165/0x220 fs/splice.c:1353
 __x64_sys_vmsplice+0x9b/0xb0 fs/splice.c:1353
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459cd9
Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f39967ffc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000116
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459cd9
RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f39968006d4
R13: 00000000004c97cc R14: 00000000004e11c8 R15: 00000000ffffffff
rcu: rcu_preempt kthread starved for 10451 jiffies! g420173 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    28952    10      2 0x80004000
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x74b/0xb80 kernel/sched/core.c:4069
 schedule+0x131/0x1e0 kernel/sched/core.c:4136
 schedule_timeout+0x14f/0x240 kernel/time/timer.c:1895
 rcu_gp_fqs_loop kernel/rcu/tree.c:1639 [inline]
 rcu_gp_kthread+0xed8/0x1770 kernel/rcu/tree.c:1799
 kthread+0x332/0x350 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352