rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=43f4/1/0x4000000000000000 softirq=27244/27246 fqs=5237
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   805008          0            0
rcu: 	cputime:    22948      29531          172   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=19193 q=8286 ncpus=2)
CPU: 1 UID: 0 PID: 7933 Comm: syz.3.526 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:_raw_read_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 2b 99 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 73 c7 1f f6 65 8b 05 1c f4 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e0940 EFLAGS: 00000206
RAX: ef1831908e18fb00 RBX: 0000000000000a06 RCX: ef1831908e18fb00
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc900001e09d0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffff88801d6be000 R14: ffffffff8f5810c0 R15: 1ffff9200003c128
FS:  00007fac9a32d6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000384d4000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 netlink_broadcast_filtered+0xbb/0x1140
 hsr_nl_nodedown+0x170/0x3a0
 hsr_prune_nodes+0x3a5/0x880
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90002cffd80 EFLAGS: 00000282
RAX: ef1831908e18fb00 RBX: 0000000000000000 RCX: ef1831908e18fb00
RDX: 0000000000000000 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90002cffe30 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200059ffb0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:do_syscall_64+0xc3/0x3b0
Code: 00 48 8b 7d 08 48 89 7b 18 e8 49 5a 00 00 0f 1f 44 00 00 0f 1f 44 00 00 90 e8 c9 84 59 f6 90 90 e8 72 84 59 f6 fb 49 8b 57 08 <f6> c2 3f 74 0e 4c 89 f7 4c 89 ee e8 cd dc 3c f6 49 89 c4 90 90 41
RSP: 0018:ffffc90002cffef0 EFLAGS: 00000286
RAX: ef1831908e18fb00 RBX: ffffc90002cffef0 RCX: ef1831908e18fb00
RDX: 0000000000000000 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc90002cfff48 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000141
R13: 0000000000000141 R14: ffffc90002cfff58 R15: ffff888025b58000
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fac9958e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fac9a32d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fac997b5fa0 RCX: 00007fac9958e9a9
RDX: 0000000000000094 RSI: 0000200000000ac0 RDI: 0000000000000005
RBP: 00007fac99610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fac997b5fa0 R15: 00007ffdac16f618
 </TASK>
sched: DL replenish lagged too much
