input: syz0 as /devices/virtual/input/input477 input: syz0 as /devices/virtual/input/input481 ====================================================== WARNING: possible circular locking dependency detected 4.20.0+ #11 Not tainted ------------------------------------------------------ syz-executor4/9744 is trying to acquire lock: 000000009057b964 (&p->pi_lock){-.-.}, at: try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965 but task is already holding lock: 00000000d9600f56 (&pgdat->kswapd_wait){....}, at: __wake_up_common_lock+0x19b/0x390 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+0x95/0xcd kernel/locking/spinlock.c:152 __wake_up_common_lock+0x19b/0x390 kernel/sched/wait.c:120 __wake_up+0xe/0x10 kernel/sched/wait.c:145 wakeup_kswapd+0x5ba/0x8f0 mm/vmscan.c:3982 steal_suitable_fallback+0x50d/0x7c0 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+0x2f53/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] relay_alloc_buf kernel/relay.c:136 [inline] relay_create_buf kernel/relay.c:177 [inline] relay_open_buf.part.0+0x2a7/0xb40 kernel/relay.c:450 relay_open_buf kernel/relay.c:447 [inline] relay_open kernel/relay.c:597 [inline] relay_open+0x5f3/0xaf0 kernel/relay.c:561 do_blk_trace_setup+0x50d/0xdb0 kernel/trace/blktrace.c:532 __blk_trace_setup+0xe3/0x190 kernel/trace/blktrace.c:577 blk_trace_ioctl+0x170/0x300 kernel/trace/blktrace.c:716 blkdev_ioctl+0x141/0x2120 block/ioctl.c:591 block_ioctl+0xee/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x107b/0x17d0 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1a3/0x800 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+0x95/0xcd kernel/locking/spinlock.c:152 rmqueue mm/page_alloc.c:3082 [inline] get_page_from_freelist+0x13d0/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] depot_save_stack+0x3da/0x460 lib/stackdepot.c:260 save_stack+0xa9/0xd0 mm/kasan/common.c:79 set_track mm/kasan/common.c:85 [inline] kasan_kmalloc mm/kasan/common.c:482 [inline] kasan_kmalloc+0xcf/0xe0 mm/kasan/common.c:455 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:397 kmem_cache_alloc+0x12d/0x710 mm/slab.c:3541 kmem_cache_zalloc include/linux/slab.h:730 [inline] fill_pool lib/debugobjects.c:134 [inline] __debug_object_init+0xb1d/0x12d0 lib/debugobjects.c:379 debug_object_init lib/debugobjects.c:431 [inline] debug_object_activate+0x348/0x550 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+0x4e6/0x1470 kernel/time/timer.c:1137 __queue_delayed_work+0x253/0x390 kernel/workqueue.c:1533 queue_delayed_work_on+0x19a/0x200 kernel/workqueue.c:1558 queue_delayed_work include/linux/workqueue.h:527 [inline] check_lifetime+0x57e/0xa40 net/ipv4/devinet.c:757 process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153 worker_thread+0x143/0x14a0 kernel/workqueue.c:2296 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 -> #2 (&base->lock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 lock_timer_base+0xb7/0x2a0 kernel/time/timer.c:937 __mod_timer kernel/time/timer.c:1009 [inline] mod_timer kernel/time/timer.c:1101 [inline] add_timer+0x884/0x1470 kernel/time/timer.c:1137 __queue_delayed_work+0x253/0x390 kernel/workqueue.c:1533 queue_delayed_work_on+0x19a/0x200 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+0x3ea/0x590 kernel/sched/psi.c:534 psi_enqueue kernel/sched/stats.h:82 [inline] enqueue_task kernel/sched/core.c:727 [inline] activate_task+0x1f8/0x470 kernel/sched/core.c:751 wake_up_new_task+0x50c/0xd30 kernel/sched/core.c:2423 _do_fork+0x2a5/0x1170 kernel/fork.c:2242 kernel_thread+0x34/0x40 kernel/fork.c:2276 rest_init+0x28/0x37b init/main.c:408 arch_call_rest_init+0xe/0x1b start_kernel+0x882/0x8bd init/main.c:740 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b 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+0x2f/0x40 kernel/locking/spinlock.c:144 rq_lock kernel/sched/sched.h:1149 [inline] task_fork_fair+0xb5/0x7a0 kernel/sched/fair.c:10058 sched_fork+0x437/0xb90 kernel/sched/core.c:2359 copy_process+0x1ff6/0x8730 kernel/fork.c:1888 _do_fork+0x1a9/0x1170 kernel/fork.c:2217 kernel_thread+0x34/0x40 kernel/fork.c:2276 rest_init+0x28/0x37b init/main.c:408 arch_call_rest_init+0xe/0x1b start_kernel+0x882/0x8bd init/main.c:740 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #0 (&p->pi_lock){-.-.}: lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965 default_wake_function+0x30/0x50 kernel/sched/core.c:3710 autoremove_wake_function+0x79/0x360 kernel/sched/wait.c:375 __wake_up_common+0x1d3/0x7d0 kernel/sched/wait.c:92 __wake_up_common_lock+0x1c6/0x390 kernel/sched/wait.c:121 __wake_up+0xe/0x10 kernel/sched/wait.c:145 wakeup_kswapd+0x5ba/0x8f0 mm/vmscan.c:3982 steal_suitable_fallback+0x50d/0x7c0 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+0x2f53/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] relay_alloc_buf kernel/relay.c:136 [inline] relay_create_buf kernel/relay.c:177 [inline] relay_open_buf.part.0+0x2a7/0xb40 kernel/relay.c:450 relay_open_buf kernel/relay.c:447 [inline] relay_open kernel/relay.c:597 [inline] relay_open+0x5f3/0xaf0 kernel/relay.c:561 do_blk_trace_setup+0x50d/0xdb0 kernel/trace/blktrace.c:532 __blk_trace_setup+0xe3/0x190 kernel/trace/blktrace.c:577 blk_trace_ioctl+0x170/0x300 kernel/trace/blktrace.c:716 blkdev_ioctl+0x141/0x2120 block/ioctl.c:591 block_ioctl+0xee/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x107b/0x17d0 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1a3/0x800 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 *** 4 locks held by syz-executor4/9744: #0: 00000000a7d5db97 (&q->blk_trace_mutex){+.+.}, at: blk_trace_ioctl+0xe3/0x300 kernel/trace/blktrace.c:711 #1: 000000003f65c650 (relay_channels_mutex){+.+.}, at: relay_open kernel/relay.c:595 [inline] #1: 000000003f65c650 (relay_channels_mutex){+.+.}, at: relay_open+0x484/0xaf0 kernel/relay.c:561 #2: 000000002d160d9c (&(&zone->lock)->rlock){..-.}, at: spin_lock include/linux/spinlock.h:329 [inline] #2: 000000002d160d9c (&(&zone->lock)->rlock){..-.}, at: rmqueue_bulk mm/page_alloc.c:2548 [inline] #2: 000000002d160d9c (&(&zone->lock)->rlock){..-.}, at: __rmqueue_pcplist mm/page_alloc.c:3021 [inline] #2: 000000002d160d9c (&(&zone->lock)->rlock){..-.}, at: rmqueue_pcplist mm/page_alloc.c:3050 [inline] #2: 000000002d160d9c (&(&zone->lock)->rlock){..-.}, at: rmqueue mm/page_alloc.c:3072 [inline] #2: 000000002d160d9c (&(&zone->lock)->rlock){..-.}, at: get_page_from_freelist+0x1ab1/0x5190 mm/page_alloc.c:3491 #3: 00000000d9600f56 (&pgdat->kswapd_wait){....}, at: __wake_up_common_lock+0x19b/0x390 kernel/sched/wait.c:120 stack backtrace: CPU: 1 PID: 9744 Comm: syz-executor4 Not tainted 4.20.0+ #11 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+0x1db/0x2d0 lib/dump_stack.c:113 print_circular_bug.isra.0.cold+0x1cc/0x28f 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+0x3014/0x4a30 kernel/locking/lockdep.c:3338 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965 default_wake_function+0x30/0x50 kernel/sched/core.c:3710 autoremove_wake_function+0x79/0x360 kernel/sched/wait.c:375 __wake_up_common+0x1d3/0x7d0 kernel/sched/wait.c:92 __wake_up_common_lock+0x1c6/0x390 kernel/sched/wait.c:121 __wake_up+0xe/0x10 kernel/sched/wait.c:145 wakeup_kswapd+0x5ba/0x8f0 mm/vmscan.c:3982 steal_suitable_fallback+0x50d/0x7c0 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+0x2f53/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] relay_alloc_buf kernel/relay.c:136 [inline] relay_create_buf kernel/relay.c:177 [inline] relay_open_buf.part.0+0x2a7/0xb40 kernel/relay.c:450 relay_open_buf kernel/relay.c:447 [inline] relay_open kernel/relay.c:597 [inline] relay_open+0x5f3/0xaf0 kernel/relay.c:561 do_blk_trace_setup+0x50d/0xdb0 kernel/trace/blktrace.c:532 __blk_trace_setup+0xe3/0x190 kernel/trace/blktrace.c:577 blk_trace_ioctl+0x170/0x300 kernel/trace/blktrace.c:716 blkdev_ioctl+0x141/0x2120 block/ioctl.c:591 block_ioctl+0xee/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x107b/0x17d0 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1a3/0x800 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:00007f3ecfd6cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 RDX: 0000000020000100 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3ecfd6d6d4 R13: 00000000004bf38d R14: 00000000004d0a18 R15: 00000000ffffffff kobject: 'loop1' (00000000aebb884b): kobject_uevent_env kobject: 'loop1' (00000000aebb884b): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:50' (00000000634a8267): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'input482' (0000000013c26eee): kobject_add_internal: parent: 'input', set: 'devices' kobject: '0:50' (00000000634a8267): kobject_uevent_env kobject: 'input482' (0000000013c26eee): kobject_uevent_env kobject: '0:50' (00000000634a8267): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: 'input482' (0000000013c26eee): fill_kobj_path: path = '/devices/virtual/input/input482' kobject: 'loop5' (0000000041d465dd): kobject_uevent_env kobject: '0:51' (00000000a2729aaa): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop5' (0000000041d465dd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'input482' (0000000013c26eee): fill_kobj_path: path = '/devices/virtual/input/input482' input: syz0 as /devices/virtual/input/input482 kobject: '0:51' (00000000a2729aaa): kobject_uevent_env kobject: '0:51' (00000000a2729aaa): fill_kobj_path: path = '/devices/virtual/bdi/0:51' kobject: 'event4' (000000001e0ac2e1): kobject_add_internal: parent: 'input482', set: 'devices' kobject: 'loop5' (0000000041d465dd): kobject_uevent_env kobject: 'event4' (000000001e0ac2e1): kobject_uevent_env kobject: 'loop5' (0000000041d465dd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:51' (00000000a2729aaa): kobject_uevent_env kobject: '0:51' (00000000a2729aaa): fill_kobj_path: path = '/devices/virtual/bdi/0:51' kobject: 'event4' (000000001e0ac2e1): fill_kobj_path: path = '/devices/virtual/input/input482/event4' kobject: '0:51' (00000000a2729aaa): kobject_cleanup, parent (null) kobject: 'event4' (000000001e0ac2e1): kobject_uevent_env kobject: '0:51' (00000000a2729aaa): calling ktype release kobject: 'event4' (000000001e0ac2e1): fill_kobj_path: path = '/devices/virtual/input/input482/event4' kobject: '0:51': free name kobject: '(null)' (00000000205954b1): kobject_cleanup, parent 000000001e0ac2e1 kobject: '(null)' (00000000205954b1): calling ktype release kobject: 'loop5' (0000000041d465dd): kobject_uevent_env kobject: 'loop5' (0000000041d465dd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:50' (00000000634a8267): kobject_uevent_env kobject: 'event4' (000000001e0ac2e1): kobject_cleanup, parent (null) kobject: 'event4' (000000001e0ac2e1): calling ktype release kobject: 'event4': free name kobject: '0:50' (00000000634a8267): fill_kobj_path: path = '/devices/virtual/bdi/0:50' kobject: '0:50' (00000000634a8267): kobject_cleanup, parent (null) kobject: '0:50' (00000000634a8267): calling ktype release kobject: 'input483' (00000000bd396f06): kobject_add_internal: parent: 'input', set: 'devices' kobject: '0:50': free name kobject: 'input482' (0000000013c26eee): kobject_uevent_env kobject: 'loop0' (00000000f030ffe4): kobject_uevent_env kobject: 'input483' (00000000bd396f06): kobject_uevent_env kobject: 'loop0' (00000000f030ffe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'input482' (0000000013c26eee): fill_kobj_path: path = '/devices/virtual/input/input482' kobject: 'input483' (00000000bd396f06): fill_kobj_path: path = '/devices/virtual/input/input483' kobject: 'input482' (0000000013c26eee): kobject_cleanup, parent (null) kobject: 'input482' (0000000013c26eee): calling ktype release kobject: 'input483' (00000000bd396f06): fill_kobj_path: path = '/devices/virtual/input/input483' kobject: 'input482': free name input: syz0 as /devices/virtual/input/input483 kobject: 'event4' (000000004248da41): kobject_add_internal: parent: 'input483', set: 'devices' kobject: 'event4' (000000004248da41): kobject_uevent_env kobject: 'event4' (000000004248da41): fill_kobj_path: path = '/devices/virtual/input/input483/event4' kobject: 'event4' (000000004248da41): kobject_uevent_env kobject: 'event4' (000000004248da41): fill_kobj_path: path = '/devices/virtual/input/input483/event4' kobject: '(null)' (000000007743f542): kobject_cleanup, parent 000000004248da41 kobject: '(null)' (000000007743f542): calling ktype release kobject: 'event4' (000000004248da41): kobject_cleanup, parent (null) kobject: 'event4' (000000004248da41): calling ktype release kobject: 'event4': free name kobject: 'input483' (00000000bd396f06): kobject_uevent_env kobject: 'input483' (00000000bd396f06): fill_kobj_path: path = '/devices/virtual/input/input483' kobject: 'input483' (00000000bd396f06): kobject_cleanup, parent (null) kobject: 'input483' (00000000bd396f06): calling ktype release kobject: 'input483': free name kobject: 'loop0' (00000000f030ffe4): kobject_uevent_env kobject: 'loop0' (00000000f030ffe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000aebb884b): kobject_uevent_env kobject: 'loop1' (00000000aebb884b): fill_kobj_path: path = '/devices/virtual/block/loop1' oom_reaper: reaped process 9744 (syz-executor4), now anon-rss:0kB, file-rss:32704kB, shmem-rss:0kB syz-fuzzer invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 CPU: 0 PID: 8219 Comm: syz-fuzzer Not tainted 4.20.0+ #11 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+0x1db/0x2d0 lib/dump_stack.c:113 dump_header+0x1e6/0x116c mm/oom_kill.c:451 syz-executor4: page allocation failure: order:0, mode:0x6000c0(GFP_KERNEL), nodemask=(null),cpuset=syz4,mems_allowed=0-1 oom_kill_process.cold+0x10/0x9d4 mm/oom_kill.c:966 out_of_memory+0x885/0x1420 mm/oom_kill.c:1133 __alloc_pages_may_oom mm/page_alloc.c:3666 [inline] __alloc_pages_slowpath+0x2217/0x2cc0 mm/page_alloc.c:4379 __alloc_pages_nodemask+0xa37/0xdc0 mm/page_alloc.c:4549 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x3cd/0x620 mm/filemap.c:909