Free memory is -13360kB above reserved lowmemorykiller: Killing 'syz-executor282' (2641) (tgid 2641), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3912) because cache 36244kB is below limit 65536kB for oom_score_adj 12 Free memory is 4340kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 3912, name: syz-executor282 3 locks held by syz-executor282/3912: #0: (&mm->mmap_sem){++++++}, at: [<000000001fc37a2e>] __mm_populate+0x20c/0x300 mm/gup.c:1143 #1: (shrinker_rwsem){++++..}, at: [<00000000b8f6c8b4>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #2: (rcu_read_lock){......}, at: [<000000008a957bea>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 Preemption disabled at: [<00000000bd91889c>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000bd91889c>] task_lock include/linux/sched.h:3217 [inline] [<00000000bd91889c>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 0 PID: 3912 Comm: syz-executor282 Not tainted 4.9.185+ #7 ffff88014cc7f018 ffffffff81b57f51 0000000000000000 0000000000000001 ffff8801d2870000 ffffffff810d0ca0 ffff8801d2870000 ffff88014cc7f050 ffffffff814002fc ffff8801d2870000 ffffffff82a39940 0000000000000387 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000002cdd9545>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000d37b9348>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006774a4a9>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000c3f3cdec>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (2647) (tgid 2647), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3912) because cache 36144kB is below limit 65536kB for oom_score_adj 12 Free memory is 6440kB above reserved ================================= [ INFO: inconsistent lock state ] 4.9.185+ #7 Tainted: G W --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. syz-executor282/3912 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<000000002a5a16bf>] get_cmdline+0xa3/0x2d0 mm/util.c:641 mark_held_locks+0xb1/0x100 kernel/locking/lockdep.c:2660 __lockdep_trace_alloc kernel/locking/lockdep.c:2882 [inline] lockdep_trace_alloc+0x18c/0x2b0 kernel/locking/lockdep.c:2897 __alloc_pages_nodemask+0x143/0x1a80 mm/page_alloc.c:3803 __alloc_pages include/linux/gfp.h:433 [inline] __alloc_pages_node include/linux/gfp.h:446 [inline] alloc_pages_node include/linux/gfp.h:460 [inline] pmd_alloc_one arch/x86/include/asm/pgalloc.h:88 [inline] __pmd_alloc+0x4a/0x330 mm/memory.c:3742 pmd_alloc include/linux/mm.h:1601 [inline] alloc_new_pmd mm/mremap.c:64 [inline] move_page_tables+0xadb/0xd60 mm/mremap.c:212 shift_arg_pages+0x1ae/0x470 fs/exec.c:642 setup_arg_pages+0x60d/0x7c0 fs/exec.c:754 load_elf_binary+0xa84/0x4a90 fs/binfmt_elf.c:860 search_binary_handler fs/exec.c:1621 [inline] search_binary_handler+0x14f/0x700 fs/exec.c:1599 exec_binprm fs/exec.c:1663 [inline] do_execveat_common.isra.0+0xf81/0x1db0 fs/exec.c:1785 do_execve+0x3a/0x50 fs/exec.c:1829 run_init_process+0x33/0x37 init/main.c:904 try_to_run_init_process+0x18/0x48 init/main.c:913 kernel_init+0xf2/0x163 init/main.c:984 ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 irq event stamp: 12347 hardirqs last enabled at (12347): [<0000000070d0c28e>] vprintk_emit+0x25c/0x6f0 kernel/printk/printk.c:1897 hardirqs last disabled at (12346): [<00000000ff13c20c>] vprintk_emit+0x6d/0x6f0 kernel/printk/printk.c:1801 softirqs last enabled at (11436): [<0000000008cd4ba4>] __do_softirq+0x474/0x964 kernel/softirq.c:314 softirqs last disabled at (11355): [<00000000f29d416f>] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (11355): [<00000000f29d416f>] irq_exit+0x119/0x160 kernel/softirq.c:409 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&mm->mmap_sem); lock(&mm->mmap_sem); *** DEADLOCK *** 4 locks held by syz-executor282/3912: #0: (&mm->mmap_sem){+++++?}, at: [<000000001fc37a2e>] __mm_populate+0x20c/0x300 mm/gup.c:1143 #1: (shrinker_rwsem){++++..}, at: [<00000000b8f6c8b4>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #2: (rcu_read_lock){......}, at: [<000000008a957bea>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 #3: (lmk_event_lock){+.+.-.}, at: [<000000005ed87d01>] spin_lock include/linux/spinlock.h:302 [inline] #3: (lmk_event_lock){+.+.-.}, at: [<000000005ed87d01>] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 stack backtrace: CPU: 0 PID: 3912 Comm: syz-executor282 Tainted: G W 4.9.185+ #7 ffff88014cc7ed60 ffffffff81b57f51 00000000000000f0 ffff8801d2870000 ffffffff83caf760 ffff8801d2870970 ffffffff84250ec0 ffff88014cc7edd8 ffffffff81406d39 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000083a958de>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<0000000083a958de>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<000000006f194600>] valid_state kernel/locking/lockdep.c:2400 [inline] [<000000006f194600>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<000000006f194600>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<0000000098134604>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<0000000098134604>] __lock_acquire+0x5c3/0x4350 kernel/locking/lockdep.c:3302 [<00000000bcdfe5d3>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<0000000076abd616>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<000000002a5a16bf>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<000000005c2b7d62>] handle_lmk_event+0x13c/0x8a0 drivers/staging/android/lowmemorykiller.c:128 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (2656) (tgid 2656), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 36056kB is below limit 65536kB for oom_score_adj 12 Free memory is -13436kB above reserved lowmemorykiller: Killing 'syz-executor282' (2665) (tgid 2665), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 35756kB is below limit 65536kB for oom_score_adj 12 Free memory is -13312kB above reserved lowmemorykiller: Killing 'syz-executor282' (2671) (tgid 2671), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 35656kB is below limit 65536kB for oom_score_adj 12 Free memory is -13312kB above reserved lowmemorykiller: Killing 'syz-executor282' (2683) (tgid 2683), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 35256kB is below limit 65536kB for oom_score_adj 12 Free memory is -13180kB above reserved lowmemorykiller: Killing 'syz-executor282' (2701) (tgid 2701), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 35156kB is below limit 65536kB for oom_score_adj 12 Free memory is -13320kB above reserved lowmemorykiller: Killing 'syz-executor282' (2704) (tgid 2704), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 34956kB is below limit 65536kB for oom_score_adj 12 Free memory is -6420kB above reserved lowmemorykiller: Killing 'syz-executor282' (2722) (tgid 2722), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 34956kB is below limit 65536kB for oom_score_adj 12 Free memory is -6020kB above reserved lowmemorykiller: Killing 'syz-executor282' (2725) (tgid 2725), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3924) because cache 34956kB is below limit 65536kB for oom_score_adj 12 Free memory is 3364kB above reserved lowmemorykiller: Killing 'syz-executor282' (2731) (tgid 2731), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3948) because cache 34940kB is below limit 65536kB for oom_score_adj 12 Free memory is -13356kB above reserved lowmemorykiller: Killing 'syz-executor282' (2737) (tgid 2737), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3948) because cache 34740kB is below limit 65536kB for oom_score_adj 12 Free memory is -13304kB above reserved lowmemorykiller: Killing 'syz-executor282' (2743) (tgid 2743), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3948) because cache 34640kB is below limit 65536kB for oom_score_adj 12 Free memory is -1548kB above reserved lowmemorykiller: Killing 'syz-executor282' (2761) (tgid 2761), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3957) because cache 34616kB is below limit 65536kB for oom_score_adj 12 Free memory is -13388kB above reserved lowmemorykiller: Killing 'syz-executor282' (2779) (tgid 2779), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3957) because cache 34516kB is below limit 65536kB for oom_score_adj 12 Free memory is -13296kB above reserved lowmemorykiller: Killing 'syz-executor282' (2788) (tgid 2788), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3957) because cache 34416kB is below limit 65536kB for oom_score_adj 12 Free memory is -13312kB above reserved lowmemorykiller: Killing 'syz-executor282' (2803) (tgid 2803), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 33716kB is below limit 65536kB for oom_score_adj 12 Free memory is -9428kB above reserved lowmemorykiller: Killing 'syz-executor282' (2827) (tgid 2827), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3969) because cache 33648kB is below limit 65536kB for oom_score_adj 12 Free memory is -13352kB above reserved lowmemorykiller: Killing 'syz-executor282' (2830) (tgid 2830), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3969) because cache 33648kB is below limit 65536kB for oom_score_adj 12 Free memory is -9152kB above reserved lowmemorykiller: Killing 'syz-executor282' (2833) (tgid 2833), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3969) because cache 33548kB is below limit 65536kB for oom_score_adj 12 Free memory is -660kB above reserved lowmemorykiller: Killing 'syz-executor282' (2839) (tgid 2839), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3978) because cache 33512kB is below limit 65536kB for oom_score_adj 12 Free memory is -13412kB above reserved lowmemorykiller: Killing 'syz-executor282' (2854) (tgid 2854), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3978) because cache 33412kB is below limit 65536kB for oom_score_adj 12 Free memory is -13392kB above reserved lowmemorykiller: Killing 'syz-executor282' (2872) (tgid 2872), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3978) because cache 33312kB is below limit 65536kB for oom_score_adj 12 Free memory is -13392kB above reserved lowmemorykiller: Killing 'syz-executor282' (2881) (tgid 2881), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3987) because cache 32856kB is below limit 65536kB for oom_score_adj 12 Free memory is -13396kB above reserved lowmemorykiller: Killing 'syz-executor282' (2887) (tgid 2887), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3987) because cache 32656kB is below limit 65536kB for oom_score_adj 12 Free memory is -13224kB above reserved lowmemorykiller: Killing 'syz-executor282' (2893) (tgid 2893), adj 1000, to free 12176kB on behalf of 'syz-executor282' (3987) because cache 32656kB is below limit 65536kB for oom_score_adj 12 Free memory is -13224kB above reserved lowmemorykiller: Killing 'syz-executor282' (2899) (tgid 2899), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 32156kB is below limit 65536kB for oom_score_adj 12 Free memory is -10828kB above reserved lowmemorykiller: Killing 'syz-executor282' (2911) (tgid 2911), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 32056kB is below limit 65536kB for oom_score_adj 12 Free memory is -10528kB above reserved lowmemorykiller: Killing 'syz-executor282' (2932) (tgid 2932), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4002) because cache 31548kB is below limit 65536kB for oom_score_adj 12 Free memory is -13376kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4002, name: syz-executor282 INFO: lockdep is turned off. Preemption disabled at: [<00000000bd91889c>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000bd91889c>] task_lock include/linux/sched.h:3217 [inline] [<00000000bd91889c>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 0 PID: 4002 Comm: syz-executor282 Tainted: G W 4.9.185+ #7 ffff88000fda7018 ffffffff81b57f51 0000000000000000 0000000000000001 ffff88000fe10000 ffffffff810d0ca0 ffff88000fe10000 ffff88000fda7050 ffffffff814002fc ffff88000fe10000 ffffffff82a39940 0000000000000387 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000002cdd9545>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000d37b9348>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006774a4a9>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000c3f3cdec>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (2935) (tgid 2935), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4002) because cache 31348kB is below limit 65536kB for oom_score_adj 12 Free memory is -13384kB above reserved lowmemorykiller: Killing 'syz-executor282' (2941) (tgid 2941), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4002) because cache 31348kB is below limit 65536kB for oom_score_adj 12 Free memory is -13384kB above reserved lowmemorykiller: Killing 'syz-executor282' (2947) (tgid 2947), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4011) because cache 31044kB is below limit 65536kB for oom_score_adj 12 Free memory is -13312kB above reserved lowmemorykiller: Killing 'syz-executor282' (2956) (tgid 2956), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4011) because cache 30844kB is below limit 65536kB for oom_score_adj 12 Free memory is -13416kB above reserved lowmemorykiller: Killing 'syz-executor282' (2959) (tgid 2959), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4011) because cache 30844kB is below limit 65536kB for oom_score_adj 12 Free memory is -13416kB above reserved lowmemorykiller: Killing 'syz-executor282' (2971) (tgid 2971), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4020) because cache 30364kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor282' (2995) (tgid 2995), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30164kB is below limit 65536kB for oom_score_adj 12 Free memory is -13412kB above reserved lowmemorykiller: Killing 'syz-executor282' (3010) (tgid 3010), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30164kB is below limit 65536kB for oom_score_adj 12 Free memory is -3312kB above reserved lowmemorykiller: Killing 'syz-executor282' (3013) (tgid 3013), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30164kB is below limit 65536kB for oom_score_adj 12 Free memory is 788kB above reserved lowmemorykiller: Killing 'syz-executor282' (3019) (tgid 3019), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30164kB is below limit 65536kB for oom_score_adj 12 Free memory is 12488kB above reserved lowmemorykiller: Killing 'syz-executor282' (3028) (tgid 3028), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30164kB is below limit 65536kB for oom_score_adj 12 Free memory is 20888kB above reserved lowmemorykiller: Killing 'syz-executor282' (3031) (tgid 3031), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30164kB is below limit 65536kB for oom_score_adj 12 Free memory is 27488kB above reserved lowmemorykiller: Killing 'syz-executor282' (3037) (tgid 3037), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30064kB is below limit 65536kB for oom_score_adj 12 Free memory is 37188kB above reserved lowmemorykiller: Killing 'syz-executor282' (3046) (tgid 3046), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 30064kB is below limit 65536kB for oom_score_adj 12 Free memory is 43588kB above reserved lowmemorykiller: Killing 'syz-executor282' (3052) (tgid 3052), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 29964kB is below limit 65536kB for oom_score_adj 12 Free memory is 52088kB above reserved lowmemorykiller: Killing 'syz-executor282' (3055) (tgid 3055), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4023) because cache 29964kB is below limit 65536kB for oom_score_adj 12 Free memory is 59768kB above reserved lowmemorykiller: Killing 'syz-executor282' (3073) (tgid 3073), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29944kB is below limit 65536kB for oom_score_adj 12 Free memory is -13356kB above reserved lowmemorykiller: Killing 'syz-executor282' (3076) (tgid 3076), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29944kB is below limit 65536kB for oom_score_adj 12 Free memory is -7156kB above reserved lowmemorykiller: Killing 'syz-executor282' (3079) (tgid 3079), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29944kB is below limit 65536kB for oom_score_adj 12 Free memory is 1220kB above reserved lowmemorykiller: Killing 'syz-executor282' (3085) (tgid 3085), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29944kB is below limit 65536kB for oom_score_adj 12 Free memory is 9620kB above reserved lowmemorykiller: Killing 'syz-executor282' (3088) (tgid 3088), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29944kB is below limit 65536kB for oom_score_adj 12 Free memory is 17820kB above reserved lowmemorykiller: Killing 'syz-executor282' (3091) (tgid 3091), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29944kB is below limit 65536kB for oom_score_adj 12 Free memory is 25920kB above reserved lowmemorykiller: Killing 'syz-executor282' (3094) (tgid 3094), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29844kB is below limit 65536kB for oom_score_adj 12 Free memory is 34120kB above reserved lowmemorykiller: Killing 'syz-executor282' (3097) (tgid 3097), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29844kB is below limit 65536kB for oom_score_adj 12 Free memory is 42012kB above reserved lowmemorykiller: Killing 'syz-executor282' (3100) (tgid 3100), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29744kB is below limit 65536kB for oom_score_adj 12 Free memory is 50212kB above reserved lowmemorykiller: Killing 'syz-executor282' (3109) (tgid 3109), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4053) because cache 29744kB is below limit 65536kB for oom_score_adj 12 Free memory is 58012kB above reserved lowmemorykiller: Killing 'syz-executor282' (3112) (tgid 3112), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4083) because cache 29704kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor282' (3115) (tgid 3115), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4083) because cache 29704kB is below limit 65536kB for oom_score_adj 12 Free memory is -7048kB above reserved lowmemorykiller: Killing 'syz-executor282' (3118) (tgid 3118), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4083) because cache 29704kB is below limit 65536kB for oom_score_adj 12 Free memory is 1352kB above reserved lowmemorykiller: Killing 'syz-executor282' (3121) (tgid 3121), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4083) because cache 29704kB is below limit 65536kB for oom_score_adj 12 Free memory is 9552kB above reserved lowmemorykiller: Killing 'syz-executor282' (3136) (tgid 3136), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4083) because cache 29704kB is below limit 65536kB for oom_score_adj 12 Free memory is 17752kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4083, name: syz-executor282 INFO: lockdep is turned off. Preemption disabled at: [<00000000bd91889c>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000bd91889c>] task_lock include/linux/sched.h:3217 [inline] [<00000000bd91889c>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4083 Comm: syz-executor282 Tainted: G W 4.9.185+ #7 ffff88000ff6f018 ffffffff81b57f51 0000000000000000 0000000000000001 ffff88000ff32f80 ffffffff810d0ca0 ffff88000ff32f80 ffff88000ff6f050 ffffffff814002fc ffff88000ff32f80 ffffffff82a39940 0000000000000387 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000002cdd9545>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000d37b9348>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006774a4a9>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000c3f3cdec>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (3139) (tgid 3139), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4083) because cache 29704kB is below limit 65536kB for oom_score_adj 12 Free memory is 32720kB above reserved lowmemorykiller: Killing 'syz-executor282' (3142) (tgid 3142), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4083) because cache 29604kB is below limit 65536kB for oom_score_adj 12 Free memory is 32720kB above reserved lowmemorykiller: Killing 'syz-executor282' (3145) (tgid 3145), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4104) because cache 29488kB is below limit 65536kB for oom_score_adj 12 Free memory is -13380kB above reserved lowmemorykiller: Killing 'syz-executor282' (3148) (tgid 3148), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4104) because cache 29388kB is below limit 65536kB for oom_score_adj 12 Free memory is -13380kB above reserved lowmemorykiller: Killing 'syz-executor282' (3151) (tgid 3151), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4104) because cache 29088kB is below limit 65536kB for oom_score_adj 12 Free memory is -13204kB above reserved lowmemorykiller: Killing 'syz-executor282' (3154) (tgid 3154), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4113) because cache 28852kB is below limit 65536kB for oom_score_adj 12 Free memory is -13284kB above reserved lowmemorykiller: Killing 'syz-executor282' (3163) (tgid 3163), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4113) because cache 28652kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor282' (3184) (tgid 3184), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4113) because cache 28652kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor282' (3193) (tgid 3193), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4113) because cache 28552kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor282' (3196) (tgid 3196), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4113) because cache 28452kB is below limit 65536kB for oom_score_adj 12 Free memory is 13652kB above reserved lowmemorykiller: Killing 'syz-executor282' (3199) (tgid 3199), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4128) because cache 28428kB is below limit 65536kB for oom_score_adj 12 Free memory is -13280kB above reserved lowmemorykiller: Killing 'syz-executor282' (3202) (tgid 3202), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4128) because cache 28428kB is below limit 65536kB for oom_score_adj 12 Free memory is -13280kB above reserved lowmemorykiller: Killing 'syz-executor282' (3214) (tgid 3214), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4128) because cache 28428kB is below limit 65536kB for oom_score_adj 12 Free memory is -5280kB above reserved lowmemorykiller: Killing 'syz-executor282' (3217) (tgid 3217), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4128) because cache 28428kB is below limit 65536kB for oom_score_adj 12 Free memory is -4780kB above reserved lowmemorykiller: Killing 'syz-executor282' (3220) (tgid 3220), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4140) because cache 28228kB is below limit 65536kB for oom_score_adj 12 Free memory is -13308kB above reserved lowmemorykiller: Killing 'syz-executor282' (3223) (tgid 3223), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 27828kB is below limit 65536kB for oom_score_adj 12 Free memory is -13328kB above reserved lowmemorykiller: Killing 'syz-executor282' (3232) (tgid 3232), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 27828kB is below limit 65536kB for oom_score_adj 12 Free memory is -13328kB above reserved lowmemorykiller: Killing 'syz-executor282' (3247) (tgid 3247), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4152) because cache 26276kB is below limit 65536kB for oom_score_adj 12 Free memory is -13296kB above reserved lowmemorykiller: Killing 'syz-executor282' (3253) (tgid 3253), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4152) because cache 26076kB is below limit 65536kB for oom_score_adj 12 Free memory is -13300kB above reserved lowmemorykiller: Killing 'syz-executor282' (3259) (tgid 3259), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4152) because cache 26076kB is below limit 65536kB for oom_score_adj 12 Free memory is -13300kB above reserved lowmemorykiller: Killing 'syz-executor282' (3262) (tgid 3262), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25712kB is below limit 65536kB for oom_score_adj 12 Free memory is -13416kB above reserved lowmemorykiller: Killing 'syz-executor282' (3268) (tgid 3268), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25512kB is below limit 65536kB for oom_score_adj 12 Free memory is -13336kB above reserved lowmemorykiller: Killing 'syz-executor282' (3301) (tgid 3301), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25512kB is below limit 65536kB for oom_score_adj 12 Free memory is -13336kB above reserved lowmemorykiller: Killing 'syz-executor282' (3304) (tgid 3304), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25612kB is below limit 65536kB for oom_score_adj 12 Free memory is 4464kB above reserved lowmemorykiller: Killing 'syz-executor282' (3307) (tgid 3307), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25512kB is below limit 65536kB for oom_score_adj 12 Free memory is 19664kB above reserved lowmemorykiller: Killing 'syz-executor282' (3319) (tgid 3319), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25512kB is below limit 65536kB for oom_score_adj 12 Free memory is 39680kB above reserved lowmemorykiller: Killing 'syz-executor282' (3322) (tgid 3322), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25512kB is below limit 65536kB for oom_score_adj 12 Free memory is 47980kB above reserved lowmemorykiller: Killing 'syz-executor282' (3325) (tgid 3325), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25512kB is below limit 65536kB for oom_score_adj 12 Free memory is 56056kB above reserved lowmemorykiller: Killing 'syz-executor282' (3331) (tgid 3331), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4161) because cache 25512kB is below limit 65536kB for oom_score_adj 12 Free memory is 64256kB above reserved lowmemorykiller: Killing 'syz-executor282' (3343) (tgid 3343), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is -13320kB above reserved lowmemorykiller: Killing 'syz-executor282' (3349) (tgid 3349), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is -11120kB above reserved lowmemorykiller: Killing 'syz-executor282' (3352) (tgid 3352), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is -4520kB above reserved lowmemorykiller: Killing 'syz-executor282' (3358) (tgid 3358), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is 2260kB above reserved lowmemorykiller: Killing 'syz-executor282' (3364) (tgid 3364), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is 10560kB above reserved lowmemorykiller: Killing 'syz-executor282' (3367) (tgid 3367), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is 18860kB above reserved lowmemorykiller: Killing 'syz-executor282' (3376) (tgid 3376), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is 27060kB above reserved lowmemorykiller: Killing 'syz-executor282' (3379) (tgid 3379), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25340kB is below limit 65536kB for oom_score_adj 12 Free memory is 39360kB above reserved lowmemorykiller: Killing 'syz-executor282' (3388) (tgid 3388), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4185) because cache 25240kB is below limit 65536kB for oom_score_adj 12 Free memory is 54428kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4185, name: syz-executor282 INFO: lockdep is turned off. Preemption disabled at: [<00000000bd91889c>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000bd91889c>] task_lock include/linux/sched.h:3217 [inline] [<00000000bd91889c>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4185 Comm: syz-executor282 Tainted: G W 4.9.185+ #7 ffff88006ccf7018 ffffffff81b57f51 0000000000000000 0000000000000001 ffff8800780cdf00 ffffffff810d0ca0 ffff8800780cdf00 ffff88006ccf7050 ffffffff814002fc ffff8800780cdf00 ffffffff82a39940 0000000000000387 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000002cdd9545>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000d37b9348>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006774a4a9>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000c3f3cdec>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (3391) (tgid 3391), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4214) because cache 25156kB is below limit 65536kB for oom_score_adj 12 Free memory is -13304kB above reserved lowmemorykiller: Killing 'syz-executor282' (3397) (tgid 3397), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4218) because cache 22824kB is below limit 65536kB for oom_score_adj 12 Free memory is -13436kB above reserved lowmemorykiller: Killing 'syz-executor282' (3418) (tgid 3418), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4218) because cache 22624kB is below limit 65536kB for oom_score_adj 12 Free memory is -13404kB above reserved lowmemorykiller: Killing 'syz-executor282' (3436) (tgid 3436), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4218) because cache 22724kB is below limit 65536kB for oom_score_adj 12 Free memory is -2628kB above reserved lowmemorykiller: Killing 'syz-executor282' (3442) (tgid 3442), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4218) because cache 22724kB is below limit 65536kB for oom_score_adj 12 Free memory is -2328kB above reserved lowmemorykiller: Killing 'syz-executor282' (3445) (tgid 3445), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4230) because cache 22496kB is below limit 65536kB for oom_score_adj 12 Free memory is -13328kB above reserved lowmemorykiller: Killing 'syz-executor282' (3448) (tgid 3448), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4230) because cache 22396kB is below limit 65536kB for oom_score_adj 12 Free memory is -13308kB above reserved lowmemorykiller: Killing 'syz-executor282' (3451) (tgid 3451), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4230) because cache 22396kB is below limit 65536kB for oom_score_adj 12 Free memory is -13308kB above reserved lowmemorykiller: Killing 'syz-executor282' (3457) (tgid 3457), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4230) because cache 22396kB is below limit 65536kB for oom_score_adj 12 Free memory is -1016kB above reserved lowmemorykiller: Killing 'syz-executor282' (3472) (tgid 3472), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4230) because cache 22296kB is below limit 65536kB for oom_score_adj 12 Free memory is 6084kB above reserved lowmemorykiller: Killing 'syz-executor282' (3475) (tgid 3475), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4248) because cache 22176kB is below limit 65536kB for oom_score_adj 12 Free memory is -13356kB above reserved lowmemorykiller: Killing 'syz-executor282' (3487) (tgid 3487), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4248) because cache 22176kB is below limit 65536kB for oom_score_adj 12 Free memory is -10556kB above reserved lowmemorykiller: Killing 'syz-executor282' (3490) (tgid 3490), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4248) because cache 22176kB is below limit 65536kB for oom_score_adj 12 Free memory is -2256kB above reserved lowmemorykiller: Killing 'syz-executor282' (3511) (tgid 3511), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4248) because cache 22176kB is below limit 65536kB for oom_score_adj 12 Free memory is 6216kB above reserved lowmemorykiller: Killing 'syz-executor282' (3523) (tgid 3523), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4248) because cache 22176kB is below limit 65536kB for oom_score_adj 12 Free memory is 12616kB above reserved lowmemorykiller: Killing 'syz-executor282' (3529) (tgid 3529), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4266) because cache 22024kB is below limit 65536kB for oom_score_adj 12 Free memory is -13376kB above reserved lowmemorykiller: Killing 'syz-executor282' (3544) (tgid 3544), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4266) because cache 22024kB is below limit 65536kB for oom_score_adj 12 Free memory is -11176kB above reserved lowmemorykiller: Killing 'syz-executor282' (3556) (tgid 3556), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor282' (3559) (tgid 3559), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is -8524kB above reserved lowmemorykiller: Killing 'syz-executor282' (3565) (tgid 3565), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is -224kB above reserved lowmemorykiller: Killing 'syz-executor282' (3571) (tgid 3571), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is 7976kB above reserved lowmemorykiller: Killing 'syz-executor282' (3589) (tgid 3589), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is 14276kB above reserved lowmemorykiller: Killing 'syz-executor282' (3595) (tgid 3595), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is 24576kB above reserved lowmemorykiller: Killing 'syz-executor282' (3598) (tgid 3598), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is 32876kB above reserved lowmemorykiller: Killing 'syz-executor282' (3601) (tgid 3601), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is 41276kB above reserved lowmemorykiller: Killing 'syz-executor282' (3604) (tgid 3604), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is 49576kB above reserved lowmemorykiller: Killing 'syz-executor282' (3607) (tgid 3607), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4272) because cache 21868kB is below limit 65536kB for oom_score_adj 12 Free memory is 58176kB above reserved lowmemorykiller: Killing 'syz-executor282' (3610) (tgid 3610), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4302) because cache 21712kB is below limit 65536kB for oom_score_adj 12 Free memory is -13384kB above reserved lowmemorykiller: Killing 'syz-executor282' (3613) (tgid 3613), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4302) because cache 21712kB is below limit 65536kB for oom_score_adj 12 Free memory is -11184kB above reserved lowmemorykiller: Killing 'syz-executor282' (3616) (tgid 3616), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4302) because cache 21712kB is below limit 65536kB for oom_score_adj 12 Free memory is -5984kB above reserved lowmemorykiller: Killing 'syz-executor282' (3631) (tgid 3631), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4302) because cache 21712kB is below limit 65536kB for oom_score_adj 12 Free memory is 904kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4302, name: syz-executor282 INFO: lockdep is turned off. Preemption disabled at: [<00000000bd91889c>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000bd91889c>] task_lock include/linux/sched.h:3217 [inline] [<00000000bd91889c>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4302 Comm: syz-executor282 Tainted: G W 4.9.185+ #7 ffff88007836f018 ffffffff81b57f51 0000000000000000 0000000000000001 ffff880024c44740 ffffffff810d0ca0 ffff880024c44740 ffff88007836f050 ffffffff814002fc ffff880024c44740 ffffffff82a39940 0000000000000387 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000002cdd9545>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000d37b9348>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006774a4a9>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000c3f3cdec>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (3634) (tgid 3634), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4302) because cache 21712kB is below limit 65536kB for oom_score_adj 12 Free memory is 11280kB above reserved lowmemorykiller: Killing 'syz-executor282' (3640) (tgid 3640), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4317) because cache 21556kB is below limit 65536kB for oom_score_adj 12 Free memory is -13256kB above reserved lowmemorykiller: Killing 'syz-executor282' (3670) (tgid 3670), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4317) because cache 21356kB is below limit 65536kB for oom_score_adj 12 Free memory is -13216kB above reserved lowmemorykiller: Killing 'syz-executor282' (3673) (tgid 3673), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4317) because cache 21356kB is below limit 65536kB for oom_score_adj 12 Free memory is -13216kB above reserved lowmemorykiller: Killing 'syz-executor282' (3679) (tgid 3679), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4317) because cache 21356kB is below limit 65536kB for oom_score_adj 12 Free memory is 8860kB above reserved lowmemorykiller: Killing 'syz-executor282' (3682) (tgid 3682), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4317) because cache 21356kB is below limit 65536kB for oom_score_adj 12 Free memory is 12360kB above reserved lowmemorykiller: Killing 'syz-executor282' (3688) (tgid 3688), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4317) because cache 21156kB is below limit 65536kB for oom_score_adj 12 Free memory is 26860kB above reserved lowmemorykiller: Killing 'syz-executor282' (3700) (tgid 3700), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4317) because cache 21156kB is below limit 65536kB for oom_score_adj 12 Free memory is 27360kB above reserved lowmemorykiller: Killing 'syz-executor282' (3706) (tgid 3706), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4338) because cache 21248kB is below limit 65536kB for oom_score_adj 12 Free memory is -13340kB above reserved lowmemorykiller: Killing 'syz-executor282' (3709) (tgid 3709), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4338) because cache 21248kB is below limit 65536kB for oom_score_adj 12 Free memory is -5840kB above reserved lowmemorykiller: Killing 'syz-executor282' (3712) (tgid 3712), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4338) because cache 21148kB is below limit 65536kB for oom_score_adj 12 Free memory is -5740kB above reserved lowmemorykiller: Killing 'syz-executor282' (3718) (tgid 3718), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4338) because cache 21148kB is below limit 65536kB for oom_score_adj 12 Free memory is 3260kB above reserved lowmemorykiller: Killing 'syz-executor282' (3721) (tgid 3721), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4338) because cache 21048kB is below limit 65536kB for oom_score_adj 12 Free memory is 16020kB above reserved lowmemorykiller: Killing 'syz-executor282' (3724) (tgid 3724), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4338) because cache 21148kB is below limit 65536kB for oom_score_adj 12 Free memory is 23920kB above reserved lowmemorykiller: Killing 'syz-executor282' (3727) (tgid 3727), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4338) because cache 21048kB is below limit 65536kB for oom_score_adj 12 Free memory is 32220kB above reserved lowmemorykiller: Killing 'syz-executor282' (3745) (tgid 3745), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 21096kB is below limit 65536kB for oom_score_adj 12 Free memory is -11788kB above reserved lowmemorykiller: Killing 'syz-executor282' (3751) (tgid 3751), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 18288kB is below limit 65536kB for oom_score_adj 12 Free memory is -9188kB above reserved lowmemorykiller: Killing 'syz-executor282' (3760) (tgid 3760), adj 1000, to free 12176kB on behalf of 'syz-executor282' (2065) because cache 18288kB is below limit 65536kB for oom_score_adj 12 Free memory is -9188kB above reserved lowmemorykiller: Killing 'syz-executor282' (3766) (tgid 3766), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17588kB is below limit 65536kB for oom_score_adj 12 Free memory is -13208kB above reserved lowmemorykiller: Killing 'syz-executor282' (3769) (tgid 3769), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17588kB is below limit 65536kB for oom_score_adj 12 Free memory is -6908kB above reserved lowmemorykiller: Killing 'syz-executor282' (3772) (tgid 3772), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17588kB is below limit 65536kB for oom_score_adj 12 Free memory is 1392kB above reserved lowmemorykiller: Killing 'syz-executor282' (3778) (tgid 3778), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17588kB is below limit 65536kB for oom_score_adj 12 Free memory is 9592kB above reserved lowmemorykiller: Killing 'syz-executor282' (3781) (tgid 3781), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17588kB is below limit 65536kB for oom_score_adj 12 Free memory is 13284kB above reserved lowmemorykiller: Killing 'syz-executor282' (3784) (tgid 3784), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17488kB is below limit 65536kB for oom_score_adj 12 Free memory is 16284kB above reserved lowmemorykiller: Killing 'syz-executor282' (3793) (tgid 3793), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17488kB is below limit 65536kB for oom_score_adj 12 Free memory is 30584kB above reserved lowmemorykiller: Killing 'syz-executor282' (3796) (tgid 3796), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4368) because cache 17488kB is below limit 65536kB for oom_score_adj 12 Free memory is 31084kB above reserved lowmemorykiller: Killing 'syz-executor282' (3802) (tgid 3802), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4392) because cache 17460kB is below limit 65536kB for oom_score_adj 12 Free memory is -13388kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4392, name: syz-executor282 INFO: lockdep is turned off. Preemption disabled at: [<00000000bd91889c>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000bd91889c>] task_lock include/linux/sched.h:3217 [inline] [<00000000bd91889c>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4392 Comm: syz-executor282 Tainted: G W 4.9.185+ #7 ffff8801cf177018 ffffffff81b57f51 0000000000000000 0000000000000001 ffff8801c576c740 ffffffff810d0ca0 ffff8801c576c740 ffff8801cf177050 ffffffff814002fc ffff8801c576c740 ffffffff82a39940 0000000000000387 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000002cdd9545>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000d37b9348>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006774a4a9>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000c3f3cdec>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (3805) (tgid 3805), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4392) because cache 17360kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor282' (3814) (tgid 3814), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4392) because cache 17360kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor282' (3817) (tgid 3817), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4392) because cache 17360kB is below limit 65536kB for oom_score_adj 12 Free memory is 10852kB above reserved lowmemorykiller: Killing 'syz-executor282' (3820) (tgid 3820), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4392) because cache 17360kB is below limit 65536kB for oom_score_adj 12 Free memory is 28852kB above reserved lowmemorykiller: Killing 'syz-executor282' (3823) (tgid 3823), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4407) because cache 17080kB is below limit 65536kB for oom_score_adj 12 Free memory is -13308kB above reserved lowmemorykiller: Killing 'syz-executor282' (3829) (tgid 3829), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4407) because cache 16880kB is below limit 65536kB for oom_score_adj 12 Free memory is -13340kB above reserved lowmemorykiller: Killing 'syz-executor282' (3832) (tgid 3832), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4407) because cache 16880kB is below limit 65536kB for oom_score_adj 12 Free memory is 336kB above reserved lowmemorykiller: Killing 'syz-executor282' (3838) (tgid 3838), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4407) because cache 16880kB is below limit 65536kB for oom_score_adj 12 Free memory is 1136kB above reserved lowmemorykiller: Killing 'syz-executor282' (3841) (tgid 3841), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4407) because cache 16580kB is below limit 65536kB for oom_score_adj 12 Free memory is 16536kB above reserved lowmemorykiller: Killing 'syz-executor282' (3847) (tgid 3847), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4422) because cache 16576kB is below limit 65536kB for oom_score_adj 12 Free memory is -13284kB above reserved lowmemorykiller: Killing 'syz-executor282' (3853) (tgid 3853), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4422) because cache 16576kB is below limit 65536kB for oom_score_adj 12 Free memory is -2184kB above reserved lowmemorykiller: Killing 'syz-executor282' (3856) (tgid 3856), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4428) because cache 16376kB is below limit 16384kB for oom_score_adj 6 Free memory is -13320kB above reserved lowmemorykiller: Killing 'syz-executor282' (3859) (tgid 3859), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4428) because cache 16376kB is below limit 16384kB for oom_score_adj 6 Free memory is -13320kB above reserved lowmemorykiller: Killing 'syz-executor282' (3862) (tgid 3862), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 16076kB is below limit 16384kB for oom_score_adj 6 Free memory is -13372kB above reserved lowmemorykiller: Killing 'syz-executor282' (3865) (tgid 3865), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 16076kB is below limit 16384kB for oom_score_adj 6 Free memory is -13372kB above reserved lowmemorykiller: Killing 'syz-executor282' (3868) (tgid 3868), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 16076kB is below limit 16384kB for oom_score_adj 6 Free memory is 1128kB above reserved lowmemorykiller: Killing 'syz-executor282' (3871) (tgid 3871), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 15976kB is below limit 16384kB for oom_score_adj 6 Free memory is 7624kB above reserved lowmemorykiller: Killing 'syz-executor282' (3874) (tgid 3874), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 15976kB is below limit 65536kB for oom_score_adj 12 Free memory is 20624kB above reserved lowmemorykiller: Killing 'syz-executor282' (3877) (tgid 3877), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 15976kB is below limit 65536kB for oom_score_adj 12 Free memory is 28624kB above reserved lowmemorykiller: Killing 'syz-executor282' (3892) (tgid 3892), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 15776kB is below limit 65536kB for oom_score_adj 12 Free memory is 36924kB above reserved lowmemorykiller: Killing 'syz-executor282' (3895) (tgid 3895), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 15776kB is below limit 65536kB for oom_score_adj 12 Free memory is 48724kB above reserved lowmemorykiller: Killing 'syz-executor282' (3898) (tgid 3898), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4434) because cache 15776kB is below limit 65536kB for oom_score_adj 12 Free memory is 52116kB above reserved lowmemorykiller: Killing 'syz-executor282' (3901) (tgid 3901), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 16384kB for oom_score_adj 6 Free memory is -13360kB above reserved lowmemorykiller: Killing 'syz-executor282' (3904) (tgid 3904), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 16384kB for oom_score_adj 6 Free memory is -10760kB above reserved lowmemorykiller: Killing 'syz-executor282' (3907) (tgid 3907), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 16384kB for oom_score_adj 6 Free memory is -2480kB above reserved lowmemorykiller: Killing 'syz-executor282' (3910) (tgid 3910), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 16384kB for oom_score_adj 6 Free memory is 7220kB above reserved lowmemorykiller: Killing 'syz-executor282' (3913) (tgid 3913), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 16384kB for oom_score_adj 6 Free memory is 14000kB above reserved lowmemorykiller: Killing 'syz-executor282' (3916) (tgid 3916), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 65536kB for oom_score_adj 12 Free memory is 22200kB above reserved lowmemorykiller: Killing 'syz-executor282' (3919) (tgid 3919), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 65536kB for oom_score_adj 12 Free memory is 25000kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4461, name: syz-executor282 INFO: lockdep is turned off. Preemption disabled at: [<00000000bd91889c>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000bd91889c>] task_lock include/linux/sched.h:3217 [inline] [<00000000bd91889c>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4461 Comm: syz-executor282 Tainted: G W 4.9.185+ #7 ffff880078397018 ffffffff81b57f51 0000000000000000 0000000000000001 ffff88000fe08000 ffffffff810d0ca0 ffff88000fe08000 ffff880078397050 ffffffff814002fc ffff88000fe08000 ffffffff82a39940 0000000000000387 Call Trace: [<00000000a4374083>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a4374083>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000002cdd9545>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000d37b9348>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006774a4a9>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000c3f3cdec>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000d1a507b7>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000001765094b>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000001765094b>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000003d71edc8>] shrink_slab mm/vmscan.c:466 [inline] [<000000003d71edc8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a017d773>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a017d773>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a017d773>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000007af84f09>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000007af84f09>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000007af84f09>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000007af84f09>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000085cfa9a8>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000085cfa9a8>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000085cfa9a8>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000085cfa9a8>] shmem_alloc_page mm/shmem.c:1437 [inline] [<0000000085cfa9a8>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<0000000085cfa9a8>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<000000000a4d05f8>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<00000000adbf7b41>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000001c7295e>] do_read_fault mm/memory.c:3202 [inline] [<0000000001c7295e>] do_fault mm/memory.c:3338 [inline] [<0000000001c7295e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000001c7295e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000001c7295e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000079a89ca5>] faultin_page mm/gup.c:395 [inline] [<0000000079a89ca5>] __get_user_pages+0x3c7/0x10b0 mm/gup.c:597 [<000000007a602dee>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1115 [<0000000043b0b2bc>] __mm_populate+0x1b9/0x300 mm/gup.c:1163 [<00000000906affb2>] mm_populate include/linux/mm.h:2056 [inline] [<00000000906affb2>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<0000000007318044>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<0000000007318044>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<00000000a77a0c53>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<00000000a77a0c53>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<00000000da40144b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e8c717cd>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor282' (3922) (tgid 3922), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15848kB is below limit 65536kB for oom_score_adj 12 Free memory is 29084kB above reserved lowmemorykiller: Killing 'syz-executor282' (3925) (tgid 3925), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15748kB is below limit 65536kB for oom_score_adj 12 Free memory is 46972kB above reserved lowmemorykiller: Killing 'syz-executor282' (3928) (tgid 3928), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15748kB is below limit 65536kB for oom_score_adj 12 Free memory is 59872kB above reserved lowmemorykiller: Killing 'syz-executor282' (3931) (tgid 3931), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4461) because cache 15748kB is below limit 65536kB for oom_score_adj 12 Free memory is 59972kB above reserved lowmemorykiller: Killing 'syz-executor282' (3934) (tgid 3934), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4494) because cache 15624kB is below limit 16384kB for oom_score_adj 6 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor282' (3937) (tgid 3937), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4494) because cache 15624kB is below limit 16384kB for oom_score_adj 6 Free memory is -11424kB above reserved lowmemorykiller: Killing 'syz-executor282' (3940) (tgid 3940), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4494) because cache 15624kB is below limit 16384kB for oom_score_adj 6 Free memory is -7824kB above reserved lowmemorykiller: Killing 'syz-executor282' (3943) (tgid 3943), adj 1000, to free 12176kB on behalf of 'syz-executor282' (4494) because