====================================== | [ 12.407723][ T219] ================================================================== | [ 12.408123][ T219] BUG: KASAN: use-after-free in page_pool_item_uninit (net/core/page_pool.c:523) | [ 12.408387][ T219] Read of size 8 at addr ffff88800b276008 by task python3/219 | [ 12.408636][ T219] [ 12.408996][ T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.409211][ T219] Call Trace: [ 12.409340][ T219] [ 12.409427][ T219] dump_stack_lvl (lib/dump_stack.c:123) [ 12.409614][ T219] print_address_description.constprop.0 (mm/kasan/report.c:379) [ 12.409831][ T219] ? page_pool_item_uninit (net/core/page_pool.c:523) [ 12.410003][ T219] print_report (mm/kasan/report.c:490) [ 12.410166][ T219] ? kasan_addr_to_slab (./include/linux/mm.h:1295 mm/kasan/../slab.h:211 mm/kasan/common.c:38) [ 12.410339][ T219] kasan_report (mm/kasan/report.c:604) [ 12.410478][ T219] ? page_pool_item_uninit (net/core/page_pool.c:523) [ 12.410656][ T219] page_pool_item_uninit (net/core/page_pool.c:523) [ 12.410831][ T219] page_pool_release (net/core/page_pool.c:1431 net/core/page_pool.c:1484) [ 12.411007][ T219] ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383) [ 12.411227][ T219] ? __pfx_page_pool_release (net/core/page_pool.c:1478) [ 12.411400][ T219] ? napi_disable (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 net/core/dev.c:6832) [ 12.411584][ T219] page_pool_destroy (net/core/page_pool.c:1555) [ 12.411752][ T219] nsim_stop (drivers/net/netdevsim/netdev.c:469 drivers/net/netdevsim/netdev.c:483) netdevsim [ 12.411939][ T219] __dev_close_many (net/core/dev.c:1591) [ 12.412104][ T219] ? __pfx___dev_close_many (net/core/dev.c:1555) [ 12.412270][ T219] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 12.412453][ 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) [ 12.412619][ T219] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 12.412744][ 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) [ 12.412908][ T219] dev_close_many (net/core/dev.c:1618) [ 12.413080][ T219] ? __pfx_dev_close_many (net/core/dev.c:1608) [ 12.413252][ T219] unregister_netdevice_many_notify (net/core/dev.c:11562) [ 12.413463][ 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) [ 12.413631][ T219] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [ 12.413844][ T219] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11529) [ 12.414057][ T219] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 12.414226][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735) [ 12.414398][ T219] ? nsim_destroy (drivers/net/netdevsim/netdev.c:827) netdevsim [ 12.414575][ T219] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 12.414739][ T219] unregister_netdevice_queue (net/core/dev.c:11524) [ 12.414919][ T219] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 12.415102][ T219] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11513) [ 12.415315][ T219] nsim_destroy (drivers/net/netdevsim/netdev.c:832 (discriminator 2)) netdevsim [ 12.415491][ T219] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:426 drivers/net/netdevsim/dev.c:1429) netdevsim [ 12.415715][ T219] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1438 drivers/net/netdevsim/dev.c:1661) netdevsim [ 12.415939][ T219] nsim_drv_remove (drivers/net/netdevsim/dev.c:1678) netdevsim [ 12.416117][ T219] device_release_driver_internal (drivers/base/dd.c:1275 drivers/base/dd.c:1296) [ 12.416337][ T219] ? klist_put (lib/klist.c:220) [ 12.416467][ T219] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:583) [ 12.416637][ T219] device_del (drivers/base/core.c:3855) [ 12.416769][ T219] ? __pfx_device_del (drivers/base/core.c:3809) [ 12.416939][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 12.417110][ T219] ? kernfs_fop_write_iter (fs/kernfs/file.c:326) [ 12.417290][ T219] device_unregister (drivers/base/core.c:3772 drivers/base/core.c:3896) [ 12.417462][ T219] del_device_store (drivers/net/netdevsim/bus.c:230) netdevsim [ 12.417681][ T219] ? __pfx_del_device_store (drivers/net/netdevsim/bus.c:197) netdevsim [ 12.417899][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) [ 12.418073][ T219] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) [ 12.418245][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) [ 12.418414][ T219] kernfs_fop_write_iter (fs/kernfs/file.c:334) [ 12.418582][ T219] vfs_write (fs/read_write.c:586 fs/read_write.c:679) [ 12.418713][ T219] ? __pfx_vfs_write (fs/read_write.c:660) [ 12.418886][ T219] ? __lock_release (kernel/locking/lockdep.c:5525) [ 12.419053][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [ 12.419228][ T219] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 12.419403][ T219] ksys_write (fs/read_write.c:731) [ 12.419531][ T219] ? __pfx_ksys_write (fs/read_write.c:721) [ 12.419700][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [ 12.419869][ T219] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 12.420048][ T219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 12.420269][ T219] RIP: 0033:0x7f16e1800b77 [ 12.420454][ 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 [ 12.421045][ T219] RSP: 002b:00007ffcb9878b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 12.421305][ T219] RAX: ffffffffffffffda RBX: 00007f16e15e6140 RCX: 00007f16e1800b77 [ 12.421562][ T219] RDX: 0000000000000004 RSI: 000055fd279aee60 RDI: 0000000000000007 [ 12.421815][ T219] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 12.422068][ T219] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f16d3568880 [ 12.422321][ T219] R13: 000055fd279aee60 R14: 0000000000000007 R15: 000055fd27665a00 | [ 12.426819][ T219] Disabling lock debugging due to kernel taint | [ 12.427065][ T219] Oops: general protection fault, probably for non-canonical address 0xf99995999999999c: 0000 [#1] PREEMPT SMP KASAN NOPTI | [ 12.427477][ T219] KASAN: maybe wild-memory-access in range [0xcccccccccccccce0-0xcccccccccccccce7] | [ 12.428064][ T219] Tainted: [B]=BAD_PAGE [ 12.428187][ T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.428389][ 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) [ 12.428614][ T219] Code: b4 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: b4 48 mov $0x48,%ah 2: bb 00 00 00 00 mov $0x0,%ebx 7: 00 fc add %bh,%ah 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 [ 12.429190][ T219] RSP: 0018:ffffc90000ab74f0 EFLAGS: 00010a06 [ 12.429399][ T219] RAX: 199999999999999c RBX: dffffc0000000000 RCX: ffffffffb3037b43 [ 12.429646][ T219] RDX: 0000000000000000 RSI: 0000000000000004 RDI: cccccccccccccce0 [ 12.429897][ T219] RBP: fffffbfff6898878 R08: 0000000000000000 R09: fffffbfff6c59888 [ 12.430145][ T219] R10: ffffffffb62cc447 R11: ffffc90000ab6fc0 R12: ffff88800bcb6620 [ 12.430388][ T219] R13: ccccccccccccccc4 R14: cccccccccccccce0 R15: 0000000000000000 [ 12.430635][ T219] FS: 00007f16e15e61c0(0000) GS:ffff888036000000(0000) knlGS:0000000000000000 [ 12.430919][ T219] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.431126][ T219] CR2: 00007f16d34fa000 CR3: 00000000057fa001 CR4: 0000000000772ef0 [ 12.431384][ T219] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 12.431625][ T219] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 12.431877][ T219] PKRU: 55555554 [ 12.432009][ T219] Call Trace: [ 12.432135][ T219] [ 12.432223][ T219] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [ 12.432367][ T219] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) [ 12.432540][ T219] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) [ 12.432712][ 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) [ 12.432906][ 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) [ 12.433073][ T219] page_pool_release (net/core/page_pool.c:1431 net/core/page_pool.c:1484) [ 12.433245][ T219] ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383) [ 12.433461][ T219] ? __pfx_page_pool_release (net/core/page_pool.c:1478) [ 12.433628][ T219] ? napi_disable (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 net/core/dev.c:6832) [ 12.433795][ T219] page_pool_destroy (net/core/page_pool.c:1555) [ 12.433961][ T219] nsim_stop (drivers/net/netdevsim/netdev.c:469 drivers/net/netdevsim/netdev.c:483) netdevsim [ 12.434146][ T219] __dev_close_many (net/core/dev.c:1591) [ 12.434310][ T219] ? __pfx___dev_close_many (net/core/dev.c:1555) [ 12.434474][ T219] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 12.434644][ 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) [ 12.434812][ T219] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 12.434945][ 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) [ 12.435106][ T219] dev_close_many (net/core/dev.c:1618) [ 12.435268][ T219] ? __pfx_dev_close_many (net/core/dev.c:1608) [ 12.435435][ T219] unregister_netdevice_many_notify (net/core/dev.c:11562) [ 12.435638][ 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) [ 12.435810][ T219] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [ 12.436022][ T219] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11529) [ 12.436223][ T219] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 12.436386][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735) [ 12.436554][ T219] ? nsim_destroy (drivers/net/netdevsim/netdev.c:827) netdevsim [ 12.436731][ T219] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 12.436892][ T219] unregister_netdevice_queue (net/core/dev.c:11524) [ 12.437056][ T219] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 12.437234][ T219] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11513) [ 12.437437][ T219] nsim_destroy (drivers/net/netdevsim/netdev.c:832 (discriminator 2)) netdevsim [ 12.437611][ T219] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:426 drivers/net/netdevsim/dev.c:1429) netdevsim [ 12.437836][ T219] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1438 drivers/net/netdevsim/dev.c:1661) netdevsim [ 12.438058][ T219] nsim_drv_remove (drivers/net/netdevsim/dev.c:1678) netdevsim [ 12.438228][ T219] device_release_driver_internal (drivers/base/dd.c:1275 drivers/base/dd.c:1296) [ 12.438455][ T219] ? klist_put (lib/klist.c:220) [ 12.438587][ T219] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:583) [ 12.438766][ T219] device_del (drivers/base/core.c:3855) [ 12.438894][ T219] ? __pfx_device_del (drivers/base/core.c:3809) [ 12.439059][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 12.439223][ T219] ? kernfs_fop_write_iter (fs/kernfs/file.c:326) [ 12.439388][ T219] device_unregister (drivers/base/core.c:3772 drivers/base/core.c:3896) [ 12.439555][ T219] del_device_store (drivers/net/netdevsim/bus.c:230) netdevsim [ 12.439766][ T219] ? __pfx_del_device_store (drivers/net/netdevsim/bus.c:197) netdevsim [ 12.440082][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) [ 12.440244][ T219] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) [ 12.440411][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) [ 12.440573][ T219] kernfs_fop_write_iter (fs/kernfs/file.c:334) [ 12.440831][ T219] vfs_write (fs/read_write.c:586 fs/read_write.c:679) [ 12.440962][ T219] ? __pfx_vfs_write (fs/read_write.c:660) [ 12.441125][ T219] ? __lock_release (kernel/locking/lockdep.c:5525) [ 12.441286][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [ 12.441554][ T219] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 12.441721][ T219] ksys_write (fs/read_write.c:731) [ 12.441844][ T219] ? __pfx_ksys_write (fs/read_write.c:721) [ 12.442004][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [ 12.442261][ T219] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 12.442434][ T219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 12.442639][ T219] RIP: 0033:0x7f16e1800b77 [ 12.442809][ 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 [ 12.443501][ T219] RSP: 002b:00007ffcb9878b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 12.443858][ T219] RAX: ffffffffffffffda RBX: 00007f16e15e6140 RCX: 00007f16e1800b77 [ 12.444110][ T219] RDX: 0000000000000004 RSI: 000055fd279aee60 RDI: 0000000000000007 [ 12.444368][ T219] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 12.444723][ T219] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f16d3568880 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