------------[ cut here ]------------
HSR: Could not send supervision frame
WARNING: CPU: 2 PID: 113 at net/hsr/hsr_device.c:294 send_hsr_supervision_frame+0x5fe/0x840 net/hsr/hsr_device.c:294
Modules linked in:
CPU: 2 PID: 113 Comm: kswapd1 Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:send_hsr_supervision_frame+0x5fe/0x840 net/hsr/hsr_device.c:294
Code: 04 31 ff 89 de e8 32 8a 95 f7 84 db 0f 85 01 ff ff ff e8 45 8e 95 f7 48 c7 c7 80 e1 89 8b c6 05 4f 13 76 04 01 e8 72 4c 5d f7 <0f> 0b e9 e2 fe ff ff e8 26 8e 95 f7 41 be 3c 00 00 00 ba 01 00 00
RSP: 0000:ffffc90000588c70 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff8880177f0000 RSI: ffffffff814c03e7 RDI: 0000000000000001
RBP: ffffc90000588cd0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffffffff21a3b31 R12: ffff88804ac4df80
R13: 0000000000000000 R14: 0000000000000017 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f7220c2d CR3: 00000000722ba000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 hsr_announce+0x10d/0x370 net/hsr/hsr_device.c:382
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers+0x29b/0x4b0 kernel/time/timer.c:1751
 __run_timers kernel/time/timer.c:2022 [inline]
 __run_timers kernel/time/timer.c:1995 [inline]
 run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
 __do_softirq+0x1d4/0x905 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x114/0x190 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:preempt_schedule_irq+0x4d/0x90 kernel/sched/core.c:6981
Code: 55 65 48 8b 2c 25 c0 bb 03 00 53 48 89 eb 48 c1 eb 03 48 01 c3 bf 01 00 00 00 e8 8e 58 46 f7 e8 29 e6 78 f7 fb bf 01 00 00 00 <e8> ee 9a ff ff 9c 58 fa f6 c4 02 75 1a bf 01 00 00 00 e8 0c 30 46
RSP: 0000:ffffc90001fc72e8 EFLAGS: 00000202
RAX: 0000000003008e07 RBX: ffffed1002efe000 RCX: 1ffffffff22a7be6
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880177f0000 R08: 0000000000000001 R09: ffffffff91528d37
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:lock_acquire+0x1f5/0x520 kernel/locking/lockdep.c:5673
Code: 99 9c 7e 83 f8 01 0f 85 b9 02 00 00 9c 58 f6 c4 02 0f 85 a4 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0000:ffffc90001fc73b0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920003f8e78 RCX: 0ec9770beacd9984
RDX: 1ffff11002efe158 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff91528d07
R10: fffffbfff22a51a0 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8c7990c0 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:327 [inline]
 rcu_read_lock include/linux/rcupdate.h:773 [inline]
 mt_find+0x1a6/0xa60 lib/maple_tree.c:6503
 find_vma+0x10c/0x1b0 mm/mmap.c:1863
 walk_page_range+0x2b1/0x4a0 mm/pagewalk.c:463
 walk_mm mm/vmscan.c:4289 [inline]
 try_to_inc_max_seq.constprop.0+0x1239/0x2270 mm/vmscan.c:4514
 get_nr_to_scan mm/vmscan.c:5304 [inline]
 try_to_shrink_lruvec+0x974/0xb90 mm/vmscan.c:5330
 shrink_one+0x462/0x710 mm/vmscan.c:5378
 shrink_many mm/vmscan.c:5430 [inline]
 lru_gen_shrink_node mm/vmscan.c:5547 [inline]
 shrink_node+0x1fd5/0x3500 mm/vmscan.c:6488
 kswapd_shrink_node mm/vmscan.c:7288 [inline]
 balance_pgdat+0xa02/0x1ac0 mm/vmscan.c:7478
 kswapd+0x677/0xd60 mm/vmscan.c:7738
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
----------------
Code disassembly (best guess):
   0:	55                   	push   %rbp
   1:	65 48 8b 2c 25 c0 bb 	mov    %gs:0x3bbc0,%rbp
   8:	03 00
   a:	53                   	push   %rbx
   b:	48 89 eb             	mov    %rbp,%rbx
   e:	48 c1 eb 03          	shr    $0x3,%rbx
  12:	48 01 c3             	add    %rax,%rbx
  15:	bf 01 00 00 00       	mov    $0x1,%edi
  1a:	e8 8e 58 46 f7       	callq  0xf74658ad
  1f:	e8 29 e6 78 f7       	callq  0xf778e64d
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 ee 9a ff ff       	callq  0xffff9b1d <-- trapping instruction
  2f:	9c                   	pushfq
  30:	58                   	pop    %rax
  31:	fa                   	cli
  32:	f6 c4 02             	test   $0x2,%ah
  35:	75 1a                	jne    0x51
  37:	bf 01 00 00 00       	mov    $0x1,%edi
  3c:	e8                   	.byte 0xe8
  3d:	0c 30                	or     $0x30,%al
  3f:	46                   	rex.RX