======================================================
WARNING: possible circular locking dependency detected
4.20.0+ #396 Not tainted
------------------------------------------------------
syz-executor1/17053 is trying to acquire lock:
00000000b6326791 (&p->pi_lock){-.-.}, at: try_to_wake_up+0xdc/0x1460 kernel/sched/core.c:1965

but task is already holding lock:
0000000077aa3804 (&pgdat->kswapd_wait){....}, at: __wake_up_common_lock+0x19e/0x330 kernel/sched/wait.c:120

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&pgdat->kswapd_wait){....}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
       __wake_up_common_lock+0x19e/0x330 kernel/sched/wait.c:120
       __wake_up+0xe/0x10 kernel/sched/wait.c:145
       wakeup_kswapd+0x5f0/0x930 mm/vmscan.c:3982
       steal_suitable_fallback+0x538/0x830 mm/page_alloc.c:2217
       __rmqueue_fallback mm/page_alloc.c:2502 [inline]
       __rmqueue mm/page_alloc.c:2528 [inline]
       rmqueue_bulk mm/page_alloc.c:2550 [inline]
       __rmqueue_pcplist mm/page_alloc.c:3021 [inline]
       rmqueue_pcplist mm/page_alloc.c:3050 [inline]
       rmqueue mm/page_alloc.c:3072 [inline]
       get_page_from_freelist+0x318c/0x52a0 mm/page_alloc.c:3491
       __alloc_pages_nodemask+0x4f3/0xde0 mm/page_alloc.c:4529
       alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2106
       alloc_pages include/linux/gfp.h:509 [inline]
       __vmalloc_area_node mm/vmalloc.c:1690 [inline]
       __vmalloc_node_range+0x5ca/0x8d0 mm/vmalloc.c:1750
       __vmalloc_node mm/vmalloc.c:1795 [inline]
       __vmalloc_node_flags_caller+0x75/0x90 mm/vmalloc.c:1817
       kvmalloc_node+0xd7/0xf0 mm/util.c:425
       kvmalloc include/linux/mm.h:602 [inline]
       vmemdup_user+0x2d/0xa0 mm/util.c:179
       __sctp_setsockopt_connectx+0x4a/0x190 net/sctp/socket.c:1332
       sctp_getsockopt_connectx3 net/sctp/socket.c:1434 [inline]
       sctp_getsockopt+0x1674/0x80fd net/sctp/socket.c:7570
       sock_common_getsockopt+0x9a/0xe0 net/core/sock.c:2945
       __sys_getsockopt+0x1ad/0x390 net/socket.c:1939
       __do_sys_getsockopt net/socket.c:1950 [inline]
       __se_sys_getsockopt net/socket.c:1947 [inline]
       __x64_sys_getsockopt+0xbe/0x150 net/socket.c:1947
       do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #3 (&(&zone->lock)->rlock){..-.}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
       rmqueue mm/page_alloc.c:3082 [inline]
       get_page_from_freelist+0x9eb/0x52a0 mm/page_alloc.c:3491
       __alloc_pages_nodemask+0x4f3/0xde0 mm/page_alloc.c:4529
       alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2106
       alloc_pages include/linux/gfp.h:509 [inline]
       depot_save_stack+0x3f1/0x470 lib/stackdepot.c:260
       save_stack+0xa9/0xd0 mm/kasan/common.c:79
       set_track mm/kasan/common.c:85 [inline]
       kasan_kmalloc+0xcb/0xd0 mm/kasan/common.c:482
       kasan_slab_alloc+0x12/0x20 mm/kasan/common.c:397
       kmem_cache_alloc+0x130/0x730 mm/slab.c:3541
       kmem_cache_zalloc include/linux/slab.h:730 [inline]
       fill_pool lib/debugobjects.c:134 [inline]
       __debug_object_init+0xbb8/0x1290 lib/debugobjects.c:379
       debug_object_init lib/debugobjects.c:431 [inline]
       debug_object_activate+0x323/0x600 lib/debugobjects.c:512
       debug_timer_activate kernel/time/timer.c:708 [inline]
       debug_activate kernel/time/timer.c:763 [inline]
       __mod_timer kernel/time/timer.c:1040 [inline]
       mod_timer kernel/time/timer.c:1101 [inline]
       add_timer+0x50e/0x1490 kernel/time/timer.c:1137
       __queue_delayed_work+0x249/0x380 kernel/workqueue.c:1533
       queue_delayed_work_on+0x1a2/0x1f0 kernel/workqueue.c:1558
       queue_delayed_work include/linux/workqueue.h:527 [inline]
       schedule_delayed_work include/linux/workqueue.h:628 [inline]
       unaccount_event kernel/events/core.c:4311 [inline]
       _free_event+0xee3/0x1610 kernel/events/core.c:4419
       put_event+0x48/0x60 kernel/events/core.c:4532
       perf_event_release_kernel+0x8d3/0x1030 kernel/events/core.c:4638
       perf_release+0x37/0x50 kernel/events/core.c:4648
       __fput+0x385/0xa50 fs/file_table.c:278
       ____fput+0x15/0x20 fs/file_table.c:309
       task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
       tracehook_notify_resume include/linux/tracehook.h:188 [inline]
       exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166
       prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
       syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
       do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #2 (&base->lock){-.-.}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
       lock_timer_base+0xbb/0x2b0 kernel/time/timer.c:937
       __mod_timer kernel/time/timer.c:1009 [inline]
       mod_timer kernel/time/timer.c:1101 [inline]
       add_timer+0x895/0x1490 kernel/time/timer.c:1137
       __queue_delayed_work+0x249/0x380 kernel/workqueue.c:1533
       queue_delayed_work_on+0x1a2/0x1f0 kernel/workqueue.c:1558
       queue_delayed_work include/linux/workqueue.h:527 [inline]
       schedule_delayed_work include/linux/workqueue.h:628 [inline]
       psi_group_change kernel/sched/psi.c:485 [inline]
       psi_task_change+0x3f1/0x5f0 kernel/sched/psi.c:534
       psi_enqueue kernel/sched/stats.h:82 [inline]
       enqueue_task kernel/sched/core.c:727 [inline]
       activate_task+0x21a/0x430 kernel/sched/core.c:751
       wake_up_new_task+0x527/0xd20 kernel/sched/core.c:2423
       _do_fork+0x33b/0x11d0 kernel/fork.c:2247
       kernel_thread+0x34/0x40 kernel/fork.c:2281
       rest_init+0x28/0x372 init/main.c:409
       arch_call_rest_init+0xe/0x1b
       start_kernel+0x873/0x8ae init/main.c:741
       x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470
       x86_64_start_kernel+0x76/0x79 arch/x86/kernel/head64.c:451
       secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243

-> #1 (&rq->lock){-.-.}:
       __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
       _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144
       rq_lock kernel/sched/sched.h:1149 [inline]
       task_fork_fair+0xb0/0x6d0 kernel/sched/fair.c:10083
       sched_fork+0x443/0xba0 kernel/sched/core.c:2359
       copy_process+0x25b9/0x8790 kernel/fork.c:1893
       _do_fork+0x1cb/0x11d0 kernel/fork.c:2222
       kernel_thread+0x34/0x40 kernel/fork.c:2281
       rest_init+0x28/0x372 init/main.c:409
       arch_call_rest_init+0xe/0x1b
       start_kernel+0x873/0x8ae init/main.c:741
       x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470
       x86_64_start_kernel+0x76/0x79 arch/x86/kernel/head64.c:451
       secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243

-> #0 (&p->pi_lock){-.-.}:
       lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3841
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
       try_to_wake_up+0xdc/0x1460 kernel/sched/core.c:1965
       default_wake_function+0x30/0x50 kernel/sched/core.c:3710
       autoremove_wake_function+0x80/0x370 kernel/sched/wait.c:375
       __wake_up_common+0x1d7/0x7d0 kernel/sched/wait.c:92
       __wake_up_common_lock+0x1c2/0x330 kernel/sched/wait.c:121
       __wake_up+0xe/0x10 kernel/sched/wait.c:145
       wakeup_kswapd+0x5f0/0x930 mm/vmscan.c:3982
       steal_suitable_fallback+0x538/0x830 mm/page_alloc.c:2217
       __rmqueue_fallback mm/page_alloc.c:2502 [inline]
       __rmqueue mm/page_alloc.c:2528 [inline]
       rmqueue_bulk mm/page_alloc.c:2550 [inline]
       __rmqueue_pcplist mm/page_alloc.c:3021 [inline]
       rmqueue_pcplist mm/page_alloc.c:3050 [inline]
       rmqueue mm/page_alloc.c:3072 [inline]
       get_page_from_freelist+0x318c/0x52a0 mm/page_alloc.c:3491
       __alloc_pages_nodemask+0x4f3/0xde0 mm/page_alloc.c:4529
       alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2106
       alloc_pages include/linux/gfp.h:509 [inline]
       __vmalloc_area_node mm/vmalloc.c:1690 [inline]
       __vmalloc_node_range+0x5ca/0x8d0 mm/vmalloc.c:1750
       __vmalloc_node mm/vmalloc.c:1795 [inline]
       __vmalloc_node_flags_caller+0x75/0x90 mm/vmalloc.c:1817
       kvmalloc_node+0xd7/0xf0 mm/util.c:425
       kvmalloc include/linux/mm.h:602 [inline]
       vmemdup_user+0x2d/0xa0 mm/util.c:179
       __sctp_setsockopt_connectx+0x4a/0x190 net/sctp/socket.c:1332
       sctp_getsockopt_connectx3 net/sctp/socket.c:1434 [inline]
       sctp_getsockopt+0x1674/0x80fd net/sctp/socket.c:7570
       sock_common_getsockopt+0x9a/0xe0 net/core/sock.c:2945
       __sys_getsockopt+0x1ad/0x390 net/socket.c:1939
       __do_sys_getsockopt net/socket.c:1950 [inline]
       __se_sys_getsockopt net/socket.c:1947 [inline]
       __x64_sys_getsockopt+0xbe/0x150 net/socket.c:1947
       do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
  &p->pi_lock --> &(&zone->lock)->rlock --> &pgdat->kswapd_wait

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&pgdat->kswapd_wait);
                               lock(&(&zone->lock)->rlock);
                               lock(&pgdat->kswapd_wait);
  lock(&p->pi_lock);

 *** DEADLOCK ***

3 locks held by syz-executor1/17053:
 #0: 000000001a114c4f (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1502 [inline]
 #0: 000000001a114c4f (sk_lock-AF_INET6){+.+.}, at: sctp_getsockopt+0x55b/0x80fd net/sctp/socket.c:7528
 #1: 000000007d9167dd (&(&zone->lock)->rlock){..-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
 #1: 000000007d9167dd (&(&zone->lock)->rlock){..-.}, at: rmqueue_bulk mm/page_alloc.c:2548 [inline]
 #1: 000000007d9167dd (&(&zone->lock)->rlock){..-.}, at: __rmqueue_pcplist mm/page_alloc.c:3021 [inline]
 #1: 000000007d9167dd (&(&zone->lock)->rlock){..-.}, at: rmqueue_pcplist mm/page_alloc.c:3050 [inline]
 #1: 000000007d9167dd (&(&zone->lock)->rlock){..-.}, at: rmqueue mm/page_alloc.c:3072 [inline]
 #1: 000000007d9167dd (&(&zone->lock)->rlock){..-.}, at: get_page_from_freelist+0x1bae/0x52a0 mm/page_alloc.c:3491
 #2: 0000000077aa3804 (&pgdat->kswapd_wait){....}, at: __wake_up_common_lock+0x19e/0x330 kernel/sched/wait.c:120

stack backtrace:
CPU: 1 PID: 17053 Comm: syz-executor1 Not tainted 4.20.0+ #396
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 print_circular_bug.isra.34.cold.56+0x1bd/0x27d kernel/locking/lockdep.c:1224
 check_prev_add kernel/locking/lockdep.c:1866 [inline]
 check_prevs_add kernel/locking/lockdep.c:1979 [inline]
 validate_chain kernel/locking/lockdep.c:2350 [inline]
 __lock_acquire+0x3360/0x4c20 kernel/locking/lockdep.c:3338
 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3841
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
 try_to_wake_up+0xdc/0x1460 kernel/sched/core.c:1965
 default_wake_function+0x30/0x50 kernel/sched/core.c:3710
 autoremove_wake_function+0x80/0x370 kernel/sched/wait.c:375
 __wake_up_common+0x1d7/0x7d0 kernel/sched/wait.c:92
 __wake_up_common_lock+0x1c2/0x330 kernel/sched/wait.c:121
 __wake_up+0xe/0x10 kernel/sched/wait.c:145
 wakeup_kswapd+0x5f0/0x930 mm/vmscan.c:3982
 steal_suitable_fallback+0x538/0x830 mm/page_alloc.c:2217
 __rmqueue_fallback mm/page_alloc.c:2502 [inline]
 __rmqueue mm/page_alloc.c:2528 [inline]
 rmqueue_bulk mm/page_alloc.c:2550 [inline]
 __rmqueue_pcplist mm/page_alloc.c:3021 [inline]
 rmqueue_pcplist mm/page_alloc.c:3050 [inline]
 rmqueue mm/page_alloc.c:3072 [inline]
 get_page_from_freelist+0x318c/0x52a0 mm/page_alloc.c:3491
 __alloc_pages_nodemask+0x4f3/0xde0 mm/page_alloc.c:4529
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2106
 alloc_pages include/linux/gfp.h:509 [inline]
 __vmalloc_area_node mm/vmalloc.c:1690 [inline]
 __vmalloc_node_range+0x5ca/0x8d0 mm/vmalloc.c:1750
 __vmalloc_node mm/vmalloc.c:1795 [inline]
 __vmalloc_node_flags_caller+0x75/0x90 mm/vmalloc.c:1817
 kvmalloc_node+0xd7/0xf0 mm/util.c:425
 kvmalloc include/linux/mm.h:602 [inline]
 vmemdup_user+0x2d/0xa0 mm/util.c:179
 __sctp_setsockopt_connectx+0x4a/0x190 net/sctp/socket.c:1332
 sctp_getsockopt_connectx3 net/sctp/socket.c:1434 [inline]
 sctp_getsockopt+0x1674/0x80fd net/sctp/socket.c:7570
 sock_common_getsockopt+0x9a/0xe0 net/core/sock.c:2945
 __sys_getsockopt+0x1ad/0x390 net/socket.c:1939
 __do_sys_getsockopt net/socket.c:1950 [inline]
 __se_sys_getsockopt net/socket.c:1947 [inline]
 __x64_sys_getsockopt+0xbe/0x150 net/socket.c:1947
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f07e7932c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457ec9
RDX: 000000000000006f RSI: 0000000000000084 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000020000200 R09: 0000000000000000
R10: 0000000020000180 R11: 0000000000000246 R12: 00007f07e79336d4
R13: 00000000004c8880 R14: 00000000004cf190 R15: 00000000ffffffff
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
QAT: Invalid ioctl
QAT: Invalid ioctl
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
QAT: Invalid ioctl
QAT: Invalid ioctl
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000faef3ae0): kobject_uevent_env
kobject: 'loop4' (00000000faef3ae0): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000db2a193e): kobject_uevent_env
kobject: 'loop2' (00000000db2a193e): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000dfb9824d): kobject_uevent_env
kobject: 'loop5' (00000000dfb9824d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (0000000064d47516): kobject_uevent_env
kobject: 'loop3' (0000000064d47516): fill_kobj_path: path = '/devices/virtual/block/loop3'