======================================
| [ 22.924481][ C0] #3: ffff888005d4f1d8 (&fsvq->lock){+.+.}-{3:3}, at: virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1434) 
| [ 22.924868][ C0] #4: ffffc90000007ae8 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
| [   22.925253][    C0]
| [   22.925253][    C0] stack backtrace:
[   22.925527][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.925530][    C0] Call Trace:
[   22.925532][    C0]  <IRQ>
[ 22.925535][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 22.925545][ C0] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[ 22.925556][ C0] __icmp_send (./include/net/net_namespace.h:404 ./include/linux/netdevice.h:2669 net/ipv4/icmp.c:616) 
[ 22.925572][ C0] ? __pfx___icmp_send (net/ipv4/icmp.c:596) 
[ 22.925578][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.925584][ C0] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 22.925590][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) 
[ 22.925597][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.925599][ C0] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 22.925612][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) 
[ 22.925616][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:230) 
[ 22.925619][ C0] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 22.925629][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 22.925638][ C0] ipv4_send_dest_unreach (net/ipv4/route.c:1241) 
[ 22.925644][ C0] ? neigh_invalidate (net/core/neighbour.c:1008) 
[ 22.925650][ C0] ? __pfx_ipv4_send_dest_unreach (net/ipv4/route.c:1215) 
[ 22.925663][ C0] ipv4_link_failure (./include/linux/skbuff.h:1152 ./include/net/route.h:88 net/ipv4/route.c:1250) 
[ 22.925668][ C0] arp_error_report (./include/net/dst.h:429 net/ipv4/arp.c:296) 
[ 22.925676][ C0] neigh_invalidate (net/core/neighbour.c:1008) 
[ 22.925685][ C0] neigh_timer_handler (net/core/neighbour.c:1109 (discriminator 2)) 
[ 22.925694][ C0] ? __pfx_neigh_timer_handler (net/core/neighbour.c:1032) 
[ 22.925698][ C0] call_timer_fn (kernel/time/timer.c:1789) 
[ 22.925701][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 22.925703][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 22.925707][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 22.925711][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:230) 
[ 22.925718][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4323) 
[ 22.925729][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 22.925733][ C0] ? __pfx_neigh_timer_handler (net/core/neighbour.c:1032) 
[ 22.925743][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 22.925746][ C0] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 22.925754][ C0] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 22.925760][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 22.925765][ C0] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 22.925768][ C0] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 22.925778][ C0] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 22.925782][ C0] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:147 kernel/time/timer_migration.c:961) 
[ 22.925790][ C0] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 22.925793][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 22.925798][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:230) 
[ 22.925800][ C0] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 22.925807][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4323) 
[ 22.925818][ C0] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 22.925824][ C0] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 22.925829][ C0] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 22.925840][ C0] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 22.925845][ C0] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 22.925849][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:230) 
[ 22.925857][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4323) 
[ 22.925866][ C0] handle_softirqs (kernel/softirq.c:561) 
[ 22.925880][ C0] __irq_exit_rcu (kernel/softirq.c:596 kernel/softirq.c:435 kernel/softirq.c:662) 
[ 22.925883][ C0] irq_exit_rcu (kernel/softirq.c:680) 
[ 22.925886][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   22.925890][    C0]  </IRQ>
[   22.925891][    C0]  <TASK>
[ 22.925894][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 22.925899][ C0] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 22.925903][ C0] Code: ff 48 83 c4 28 65 0f c1 05 24 cb e6 49 83 f8 01 0f 85 b5 01 00 00 9c 58 f6 c4 02 0f 85 be 01 00 00 48 85 ed 0f 85 9b 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7
All code
========
   0:	ff 48 83             	decl   -0x7d(%rax)
   3:	c4                   	(bad)
   4:	28 65 0f             	sub    %ah,0xf(%rbp)
   7:	c1 05 24 cb e6 49 83 	roll   $0x83,0x49e6cb24(%rip)        # 0x49e6cb32
   e:	f8                   	clc
   f:	01 0f                	add    %ecx,(%rdi)
  11:	85 b5 01 00 00 9c    	test   %esi,-0x63ffffff(%rbp)
  17:	58                   	pop    %rax
  18:	f6 c4 02             	test   $0x2,%ah
  1b:	0f 85 be 01 00 00    	jne    0x1df
  21:	48 85 ed             	test   %rbp,%rbp
  24:	0f 85 9b 01 00 00    	jne    0x1c5
  2a:*	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax		<-- trapping instruction
  31:	fc ff df 
  34:	48 01 c3             	add    %rax,%rbx
  37:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
  3e:	48                   	rex.W
  3f:	c7                   	.byte 0xc7

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   7:	fc ff df 
   a:	48 01 c3             	add    %rax,%rbx
   d:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
  14:	48                   	rex.W
  15:	c7                   	.byte 0xc7
[   22.925906][    C0] RSP: 0018:ffffc900009c6eb0 EFLAGS: 00000206
[   22.925910][    C0] RAX: 0000000000000046 RBX: 1ffff92000138dd9 RCX: 0000000000000001
[   22.925912][    C0] RDX: 1ffff11001e05a00 RSI: 00000000ffffffff RDI: ffff88800f02d0a2
[   22.925913][    C0] RBP: 0000000000000200 R08: 0000000000000001 R09: fffffbfff77443e8
[   22.925915][    C0] R10: ffffffffbba21f47 R11: ffff88800f02c5c0 R12: ffff888005d4f1d8
[   22.925917][    C0] R13: ffff8880028a9b40 R14: ffff8880053f0d00 R15: ffff888005d4f1c0
[ 22.925934][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 22.925942][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 22.925947][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 22.925949][ C0] ? sg_init_table (lib/scatterlist.c:129) 
[ 22.925958][ C0] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 22.925961][ C0] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1434) 
[ 22.925969][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 22.925973][ C0] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1434) 
[ 22.925977][ C0] virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1434) 
[ 22.925991][ C0] ? __pfx_virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1377) 
[ 22.926003][ C0] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 22.926010][ C0] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 22.926012][ C0] ? fuse_get_unique (fs/fuse/dev.c:222) 
[ 22.926020][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 22.926024][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 22.926029][ C0] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 22.926035][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 22.926041][ C0] ? fuse_get_unique (fs/fuse/dev.c:222) 
[ 22.926046][ C0] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 22.926056][ C0] virtio_fs_send_req (fs/fuse/virtio_fs.c:1500) 
[ 22.926059][ C0] ? fuse_send_one (fs/fuse/dev.c:305) 
[ 22.926066][ C0] flush_bg_queue (fs/fuse/dev.c:323) 
[ 22.926077][ C0] fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:617) 
[ 22.926085][ C0] fuse_simple_background (fs/fuse/dev.c:642) 
[ 22.926090][ C0] fuse_send_readpages (fs/fuse/file.c:993) 
[ 22.926102][ C0] fuse_readahead (fs/fuse/file.c:1031) 
[ 22.926118][ C0] ? __pfx_fuse_readahead (fs/fuse/file.c:1004) 
[ 22.926124][ C0] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 22.926127][ C0] ? __folio_batch_add_and_move (./include/linux/local_lock_internal.h:38 mm/swap.c:201) 
[ 22.926132][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 22.926136][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 22.926146][ C0] read_pages (mm/readahead.c:161) 
[ 22.926151][ C0] ? __folio_batch_add_and_move (./include/linux/local_lock_internal.h:38 mm/swap.c:201) 
[ 22.926162][ C0] ? __pfx_read_pages (mm/readahead.c:148) 
[ 22.926181][ C0] page_cache_ra_unbounded (./include/linux/fs.h:932 mm/readahead.c:299) 
[ 22.926196][ C0] filemap_get_pages (mm/filemap.c:2581) 
[ 22.926209][ C0] ? __pfx_filemap_get_pages (mm/filemap.c:2555) 
[ 22.926228][ C0] filemap_read (mm/filemap.c:2691) 
[ 22.926230][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 22.926247][ C0] ? __pfx_filemap_read (mm/filemap.c:2656) 
[ 22.926250][ C0] ? remove_pmd_table (./arch/x86/include/asm/pgtable_64.h:83 ./arch/x86/include/asm/pgtable_64.h:88 arch/x86/mm/init_64.c:1145) 
[ 22.926254][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 kernel/bpf/core.c:774) 
[ 22.926262][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 22.926265][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 22.926277][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 kernel/bpf/core.c:774) 
[ 22.926284][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) 
[ 22.926288][ C0] ? fuse_update_get_attr (fs/fuse/dir.c:1317) 
[ 22.926305][ C0] do_iter_readv_writev (fs/read_write.c:818) 
[ 22.926314][ C0] ? __pfx_do_iter_readv_writev (fs/read_write.c:807) 
[ 22.926333][ C0] vfs_iter_read (fs/read_write.c:909) 
[ 22.926342][ C0] backing_file_read_iter (fs/backing-file.c:183) 
[ 22.926349][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) 
[ 22.926357][ C0] ovl_read_iter (fs/overlayfs/file.c:341) 
[ 22.926363][ C0] ? __pfx_ovl_read_iter (fs/overlayfs/file.c:326) 
[ 22.926367][ C0] ? __pfx_ovl_file_accessed (fs/overlayfs/file.c:298) 
[ 22.926381][ C0] __kernel_read (fs/read_write.c:523 (discriminator 1)) 
[ 22.926385][ C0] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 22.926389][ C0] ? __pfx___kernel_read (fs/read_write.c:500) 
[ 22.926392][ C0] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 22.926401][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 22.926404][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 22.926413][ C0] ? __task_pid_nr_ns (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 kernel/pid.c:514) 
[ 22.926420][ C0] ? exec_binprm (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/exec.c:1799) 
[ 22.926428][ C0] exec_binprm (fs/exec.c:1714 fs/exec.c:1761 fs/exec.c:1807) 
[ 22.926439][ C0] ? __pfx_exec_binprm (fs/exec.c:1791) 
[ 22.926445][ C0] ? bprm_execve (fs/exec.c:1849 fs/exec.c:1835) 
[ 22.926455][ C0] bprm_execve (fs/exec.c:1859 fs/exec.c:1835) 
[ 22.926461][ C0] do_execveat_common.isra.0 (fs/exec.c:1966) 
[ 22.926471][ C0] __x64_sys_execve (fs/exec.c:2111) 
[ 22.926477][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 22.926485][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.926489][    C0] RIP: 0033:0x7f168b22740b
[ 22.926493][ C0] Code: c0 75 03 5f ff e7 c3 48 8b 0d f1 a9 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 80 00 00 00 00 f3 0f 1e fa b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c5 a9 1b 00 f7 d8 64 89 01 48
All code
========
   0:	c0 75 03 5f          	shlb   $0x5f,0x3(%rbp)
   4:	ff e7                	jmp    *%rdi
   6:	c3                   	ret
   7:	48 8b 0d f1 a9 1b 00 	mov    0x1ba9f1(%rip),%rcx        # 0x1ba9ff
   e:	f7 d8                	neg    %eax
  10:	64 89 01             	mov    %eax,%fs:(%rcx)
  13:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  17:	c3                   	ret
  18:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 3b 00 00 00       	mov    $0x3b,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d c5 a9 1b 00 	mov    0x1ba9c5(%rip),%rcx        # 0x1ba9ff
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d c5 a9 1b 00 	mov    0x1ba9c5(%rip),%rcx        # 0x1ba9d5
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.926496][    C0] RSP: 002b:00007ffebce42828 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   22.926498][    C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f168b22740b
[   22.926500][    C0] RDX: 000055c313ff1db0 RSI: 000055c314029350 RDI: 000055c31400de40
[   22.926502][    C0] RBP: 000055c31400de40 R08: 000055c314029350 R09: 0000000000000000
[   22.926503][    C0] R10: 0000000000000008 R11: 0000000000000246 R12: 00000000ffffffff


Finger prints:
lockdep_rcu_suspicious:__icmp_send:ipv4_send_dest_unreach:ipv4_link_failure:arp_error_report