======================================
| [   10.665070][  T219] ==================================================================
| [ 10.665437][ T219] BUG: KASAN: use-after-free in page_pool_item_uninit (net/core/page_pool.c:523)
| [   10.665708][  T219] Read of size 8 at addr ffff888008949008 by task python3/219
| [   10.665966][  T219]
[   10.666321][  T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.666541][  T219] Call Trace:
[   10.666674][  T219]  <TASK>
[ 10.666765][ T219] dump_stack_lvl (lib/dump_stack.c:123)
[ 10.666942][ T219] print_address_description.constprop.0 (mm/kasan/report.c:379)
[ 10.667160][ T219] ? page_pool_item_uninit (net/core/page_pool.c:523)
[ 10.667338][ T219] print_report (mm/kasan/report.c:490)
[ 10.667514][ T219] ? kasan_addr_to_slab (./include/linux/mm.h:1295 mm/kasan/../slab.h:211 mm/kasan/common.c:38)
[ 10.667692][ T219] kasan_report (mm/kasan/report.c:604)
[ 10.667825][ T219] ? page_pool_item_uninit (net/core/page_pool.c:523)
[ 10.668003][ T219] page_pool_item_uninit (net/core/page_pool.c:523)
[ 10.668180][ T219] page_pool_release (net/core/page_pool.c:1431 net/core/page_pool.c:1484)
[ 10.668355][ T219] ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383)
[ 10.668576][ T219] ? __pfx_page_pool_release (net/core/page_pool.c:1478)
[ 10.668750][ T219] ? napi_disable (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 net/core/dev.c:6832)
[ 10.668926][ T219] page_pool_destroy (net/core/page_pool.c:1555)
[ 10.669101][ T219] nsim_stop (drivers/net/netdevsim/netdev.c:469 drivers/net/netdevsim/netdev.c:483) netdevsim
[ 10.669291][ T219] __dev_close_many (net/core/dev.c:1591)
[ 10.669465][ T219] ? __pfx___dev_close_many (net/core/dev.c:1555)
[ 10.669638][ T219] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860)
[ 10.669814][ T219] ? 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:228)
[ 10.669985][ T219] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 10.670118][ T219] ? 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:228)
[ 10.670293][ T219] dev_close_many (net/core/dev.c:1618)
[ 10.670477][ T219] ? __pfx_dev_close_many (net/core/dev.c:1608)
[ 10.670700][ T219] unregister_netdevice_many_notify (net/core/dev.c:11562)
[ 10.670919][ T219] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:104)
[ 10.671097][ T219] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79)
[ 10.671313][ T219] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11529)
[ 10.671528][ T219] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 10.671702][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 10.671877][ T219] ? nsim_destroy (drivers/net/netdevsim/netdev.c:827) netdevsim
[ 10.672062][ T219] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 10.672235][ T219] unregister_netdevice_queue (net/core/dev.c:11524)
[ 10.672411][ T219] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 10.672586][ T219] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11513)
[ 10.672801][ T219] nsim_destroy (drivers/net/netdevsim/netdev.c:832 (discriminator 2)) netdevsim
[ 10.672985][ T219] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:426 drivers/net/netdevsim/dev.c:1429) netdevsim
[ 10.673209][ T219] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1438 drivers/net/netdevsim/dev.c:1661) netdevsim
[ 10.673436][ T219] nsim_drv_remove (drivers/net/netdevsim/dev.c:1678) netdevsim
[ 10.673618][ T219] device_release_driver_internal (drivers/base/dd.c:1275 drivers/base/dd.c:1296)
[ 10.673835][ T219] ? klist_put (lib/klist.c:220)
[ 10.673967][ T219] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:583)
[ 10.674141][ T219] device_del (drivers/base/core.c:3855)
[ 10.674281][ T219] ? __pfx_device_del (drivers/base/core.c:3809)
[ 10.674456][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 10.674627][ T219] ? kernfs_fop_write_iter (fs/kernfs/file.c:326)
[ 10.674804][ T219] device_unregister (drivers/base/core.c:3772 drivers/base/core.c:3896)
[ 10.674978][ T219] del_device_store (drivers/net/netdevsim/bus.c:230) netdevsim
[ 10.675205][ T219] ? __pfx_del_device_store (drivers/net/netdevsim/bus.c:197) netdevsim
[ 10.675431][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 10.675604][ T219] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1))
[ 10.675779][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 10.675951][ T219] kernfs_fop_write_iter (fs/kernfs/file.c:334)
[ 10.676126][ T219] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 10.676259][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 10.676432][ T219] ? __pfx_vfs_write (fs/read_write.c:660)
[ 10.676608][ T219] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:890)
[ 10.676824][ T219] ksys_write (fs/read_write.c:731)
[ 10.676955][ T219] ? __pfx_ksys_write (fs/read_write.c:721)
[ 10.677130][ T219] ? kernfs_fop_llseek (fs/kernfs/file.c:891)
[ 10.677307][ T219] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 10.677481][ T219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   10.677699][  T219] RIP: 0033:0x7f2fcc440b77
[ 10.677895][ T219] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   10.678511][  T219] RSP: 002b:00007ffdd1574c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.678785][  T219] RAX: ffffffffffffffda RBX: 00007f2fcc226140 RCX: 00007f2fcc440b77
[   10.679049][  T219] RDX: 0000000000000004 RSI: 000055c72425f1f0 RDI: 0000000000000006
[   10.679310][  T219] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   10.679571][  T219] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f2fbe154880
[   10.679836][  T219] R13: 000055c72425f1f0 R14: 0000000000000006 R15: 000055c723fd3980
| [   10.683967][  T219] Disabling lock debugging due to kernel taint
| [   10.684192][  T219] Oops: general protection fault, probably for non-canonical address 0xf99995999999999c: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [   10.684610][  T219] KASAN: maybe wild-memory-access in range [0xcccccccccccccce0-0xcccccccccccccce7]
| [   10.685195][  T219] Tainted: [B]=BAD_PAGE
[   10.685323][  T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.685537][ T219] RIP: 0010:page_pool_item_uninit (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/core/page_pool.c:524)
[ 10.685768][ T219] Code: a0 48 bb 00 00 00 00 00 fc ff df 48 c1 ed 03 48 01 dd 4d 8d 75 1c be 04 00 00 00 4c 89 f7 e8 5d bc 68 fe 4c 89 f0 48 c1 e8 03 <0f> b6 14 18 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 62 41
All code
========
   0:	a0 48 bb 00 00 00 00 	movabs 0xfc0000000000bb48,%al
   7:	00 fc 
   9:	ff                   	(bad)
   a:	df 48 c1             	fisttps -0x3f(%rax)
   d:	ed                   	in     (%dx),%eax
   e:	03 48 01             	add    0x1(%rax),%ecx
  11:	dd 4d 8d             	fisttpll -0x73(%rbp)
  14:	75 1c                	jne    0x32
  16:	be 04 00 00 00       	mov    $0x4,%esi
  1b:	4c 89 f7             	mov    %r14,%rdi
  1e:	e8 5d bc 68 fe       	call   0xfffffffffe68bc80
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
  2a:*	0f b6 14 18          	movzbl (%rax,%rbx,1),%edx		<-- trapping instruction
  2e:	4c 89 f0             	mov    %r14,%rax
  31:	83 e0 07             	and    $0x7,%eax
  34:	83 c0 03             	add    $0x3,%eax
  37:	38 d0                	cmp    %dl,%al
  39:	7c 04                	jl     0x3f
  3b:	84 d2                	test   %dl,%dl
  3d:	75 62                	jne    0xa1
  3f:	41                   	rex.B

Code starting with the faulting instruction
===========================================
   0:	0f b6 14 18          	movzbl (%rax,%rbx,1),%edx
   4:	4c 89 f0             	mov    %r14,%rax
   7:	83 e0 07             	and    $0x7,%eax
   a:	83 c0 03             	add    $0x3,%eax
   d:	38 d0                	cmp    %dl,%al
   f:	7c 04                	jl     0x15
  11:	84 d2                	test   %dl,%dl
  13:	75 62                	jne    0x77
  15:	41                   	rex.B
[   10.686364][  T219] RSP: 0018:ffffc90000ac74f0 EFLAGS: 00010a06
[   10.686581][  T219] RAX: 199999999999999c RBX: dffffc0000000000 RCX: ffffffff9f637b43
[   10.686836][  T219] RDX: 0000000000000000 RSI: 0000000000000004 RDI: cccccccccccccce0
[   10.687090][  T219] RBP: fffffbfff4158878 R08: 0000000000000000 R09: fffffbfff4519888
[   10.687344][  T219] R10: ffffffffa28cc447 R11: ffffc90000ac6fc0 R12: ffff8880020e4e20
[   10.687597][  T219] R13: ccccccccccccccc4 R14: cccccccccccccce0 R15: 0000000000000000
[   10.687854][  T219] FS:  00007f2fcc2261c0(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.688141][  T219] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.688352][  T219] CR2: 00007f2fbec4bdd0 CR3: 000000000bbc6006 CR4: 0000000000772ef0
[   10.688603][  T219] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.688897][  T219] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.689147][  T219] PKRU: 55555554
[   10.689272][  T219] Call Trace:
[   10.689399][  T219]  <TASK>
[ 10.689487][ T219] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460)
[ 10.689627][ T219] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693)
[ 10.689801][ T219] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617)
[ 10.689973][ T219] ? page_pool_item_uninit (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/core/page_pool.c:524)
[ 10.690145][ T219] ? page_pool_item_uninit (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/core/page_pool.c:524)
[ 10.690314][ T219] page_pool_release (net/core/page_pool.c:1431 net/core/page_pool.c:1484)
[ 10.690495][ T219] ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383)
[ 10.690706][ T219] ? __pfx_page_pool_release (net/core/page_pool.c:1478)
[ 10.690875][ T219] ? napi_disable (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 net/core/dev.c:6832)
[ 10.691044][ T219] page_pool_destroy (net/core/page_pool.c:1555)
[ 10.691212][ T219] nsim_stop (drivers/net/netdevsim/netdev.c:469 drivers/net/netdevsim/netdev.c:483) netdevsim
[ 10.691395][ T219] __dev_close_many (net/core/dev.c:1591)
[ 10.691564][ T219] ? __pfx___dev_close_many (net/core/dev.c:1555)
[ 10.691734][ T219] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860)
[ 10.691902][ T219] ? 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:228)
[ 10.692068][ T219] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 10.692194][ T219] ? 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:228)
[ 10.692363][ T219] dev_close_many (net/core/dev.c:1618)
[ 10.692535][ T219] ? __pfx_dev_close_many (net/core/dev.c:1608)
[ 10.692706][ T219] unregister_netdevice_many_notify (net/core/dev.c:11562)
[ 10.692918][ T219] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:104)
[ 10.693089][ T219] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79)
[ 10.693299][ T219] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11529)
[ 10.693508][ T219] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 10.693678][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 10.693850][ T219] ? nsim_destroy (drivers/net/netdevsim/netdev.c:827) netdevsim
[ 10.694028][ T219] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 10.694196][ T219] unregister_netdevice_queue (net/core/dev.c:11524)
[ 10.694365][ T219] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 10.694535][ T219] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11513)
[ 10.694751][ T219] nsim_destroy (drivers/net/netdevsim/netdev.c:832 (discriminator 2)) netdevsim
[ 10.694932][ T219] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:426 drivers/net/netdevsim/dev.c:1429) netdevsim
[ 10.695153][ T219] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1438 drivers/net/netdevsim/dev.c:1661) netdevsim
[ 10.695371][ T219] nsim_drv_remove (drivers/net/netdevsim/dev.c:1678) netdevsim
[ 10.695550][ T219] device_release_driver_internal (drivers/base/dd.c:1275 drivers/base/dd.c:1296)
[ 10.695762][ T219] ? klist_put (lib/klist.c:220)
[ 10.695890][ T219] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:583)
[ 10.696058][ T219] device_del (drivers/base/core.c:3855)
[ 10.696189][ T219] ? __pfx_device_del (drivers/base/core.c:3809)
[ 10.696358][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 10.696525][ T219] ? kernfs_fop_write_iter (fs/kernfs/file.c:326)
[ 10.696697][ T219] device_unregister (drivers/base/core.c:3772 drivers/base/core.c:3896)
[ 10.696865][ T219] del_device_store (drivers/net/netdevsim/bus.c:230) netdevsim
[ 10.697084][ T219] ? __pfx_del_device_store (drivers/net/netdevsim/bus.c:197) netdevsim
[ 10.697397][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 10.697567][ T219] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1))
[ 10.697739][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 10.697908][ T219] kernfs_fop_write_iter (fs/kernfs/file.c:334)
[ 10.698171][ T219] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 10.698299][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 10.698466][ T219] ? __pfx_vfs_write (fs/read_write.c:660)
[ 10.698637][ T219] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:890)
[ 10.698945][ T219] ksys_write (fs/read_write.c:731)
[ 10.699072][ T219] ? __pfx_ksys_write (fs/read_write.c:721)
[ 10.699239][ T219] ? kernfs_fop_llseek (fs/kernfs/file.c:891)
[ 10.699410][ T219] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 10.699674][ T219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   10.699880][  T219] RIP: 0033:0x7f2fcc440b77
[ 10.700056][ T219] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   10.700790][  T219] RSP: 002b:00007ffdd1574c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.701046][  T219] RAX: ffffffffffffffda RBX: 00007f2fcc226140 RCX: 00007f2fcc440b77
[   10.701396][  T219] RDX: 0000000000000004 RSI: 000055c72425f1f0 RDI: 0000000000000006
[   10.701654][  T219] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   10.701907][  T219] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f2fbe154880


Finger prints:
print_report:kasan_report:page_pool_item_uninit:page_pool_release:page_pool_destroy
page_pool_item_uninit:page_pool_release:page_pool_destroy:nsim_stop:__dev_close_many