Free memory is -10408kB above reserved lowmemorykiller: Killing 'syz-executor793' (3138) (tgid 3138), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4061) because cache 35768kB is below limit 65536kB for oom_score_adj 12 Free memory is -13332kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4061, name: syz-executor793 3 locks held by syz-executor793/4061: #0: (&mm->mmap_sem){++++++}, at: [<000000001e3bce1f>] __mm_populate+0x20c/0x300 mm/gup.c:1134 #1: (shrinker_rwsem){++++..}, at: [<000000002c7b2a51>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #2: (rcu_read_lock){......}, at: [<0000000036cd7b38>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 Preemption disabled at: [<00000000892b4196>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000892b4196>] task_lock include/linux/sched.h:3217 [inline] [<00000000892b4196>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 0 PID: 4061 Comm: syz-executor793 Not tainted 4.9.180+ #3 ffff8800998ff018 ffffffff81b577f1 0000000000000000 0000000000000001 ffff88000a5bc740 ffffffff810d0c30 ffff88000a5bc740 ffff8800998ff050 ffffffff8140008c ffff88000a5bc740 ffffffff82a39900 0000000000000387 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003346df05>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000f46d27a6>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006f5d4197>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000131b3afa>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000bead42d7>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000bead42d7>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000bead42d7>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000bead42d7>] shmem_alloc_page mm/shmem.c:1437 [inline] [<00000000bead42d7>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<00000000bead42d7>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<0000000024cb10e4>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<000000004a20a813>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000093f2f5e1>] do_read_fault mm/memory.c:3202 [inline] [<0000000093f2f5e1>] do_fault mm/memory.c:3338 [inline] [<0000000093f2f5e1>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000093f2f5e1>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000093f2f5e1>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000fc967581>] faultin_page mm/gup.c:386 [inline] [<00000000fc967581>] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 [<00000000a6165207>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 [<00000000e0cd2216>] __mm_populate+0x1b9/0x300 mm/gup.c:1154 [<000000006cbba76f>] mm_populate include/linux/mm.h:2052 [inline] [<000000006cbba76f>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<00000000c88c9c6b>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<00000000c88c9c6b>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<000000002860673d>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<000000002860673d>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<000000003163f750>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000dfcb97ec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor793' (3141) (tgid 3141), adj 1000, to free 12172kB on behalf of 'kworker/u4:1' (64) because cache 35668kB is below limit 65536kB for oom_score_adj 12 Free memory is -13456kB above reserved ====================================================== [ INFO: possible circular locking dependency detected ] 4.9.180+ #3 Tainted: G W ------------------------------------------------------- kworker/u4:1/64 is trying to acquire lock: (&mm->mmap_sem){++++++}, at: [<00000000470b338e>] get_cmdline+0xa3/0x2d0 mm/util.c:641 but task is already holding lock: (lmk_event_lock){+.+.-.}, at: [<000000007ff47884>] spin_lock include/linux/spinlock.h:302 [inline] (lmk_event_lock){+.+.-.}, at: [<000000007ff47884>] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (lmk_event_lock){+.+.-.}: lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 __raw_spin_lock include/linux/spinlock_api_smp.h:144 [inline] _raw_spin_lock+0x38/0x50 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:302 [inline] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 do_shrink_slab mm/vmscan.c:399 [inline] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 shrink_slab mm/vmscan.c:466 [inline] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 shrink_zones mm/vmscan.c:2751 [inline] do_try_to_free_pages mm/vmscan.c:2793 [inline] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 __perform_reclaim mm/page_alloc.c:3332 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 __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] shmem_alloc_page mm/shmem.c:1437 [inline] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 shmem_fault+0x216/0x6b0 mm/shmem.c:1966 __do_fault+0x2a8/0x6c0 mm/memory.c:2855 do_read_fault mm/memory.c:3202 [inline] do_fault mm/memory.c:3338 [inline] handle_pte_fault mm/memory.c:3547 [inline] __handle_mm_fault mm/memory.c:3634 [inline] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 faultin_page mm/gup.c:386 [inline] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 __mm_populate+0x1b9/0x300 mm/gup.c:1154 mm_populate include/linux/mm.h:2052 [inline] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 SYSC_mmap_pgoff mm/mmap.c:1555 [inline] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 entry_SYSCALL_64_after_swapgs+0x5d/0xdb -> #0 (&mm->mmap_sem){++++++}: check_prev_add kernel/locking/lockdep.c:1828 [inline] check_prevs_add kernel/locking/lockdep.c:1938 [inline] validate_chain kernel/locking/lockdep.c:2265 [inline] __lock_acquire+0x2d10/0x4350 kernel/locking/lockdep.c:3345 lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 down_read+0x44/0xb0 kernel/locking/rwsem.c:22 get_cmdline+0xa3/0x2d0 mm/util.c:641 handle_lmk_event+0x13c/0x8a0 drivers/staging/android/lowmemorykiller.c:128 lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 do_shrink_slab mm/vmscan.c:399 [inline] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 shrink_slab mm/vmscan.c:466 [inline] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 shrink_zones mm/vmscan.c:2751 [inline] do_try_to_free_pages mm/vmscan.c:2793 [inline] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 __perform_reclaim mm/page_alloc.c:3332 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 __alloc_pages include/linux/gfp.h:433 [inline] __alloc_pages_node include/linux/gfp.h:446 [inline] alloc_slab_page mm/slub.c:1408 [inline] allocate_slab mm/slub.c:1549 [inline] new_slab+0xa2/0x3e0 mm/slub.c:1635 new_slab_objects mm/slub.c:2419 [inline] ___slab_alloc.constprop.0+0x361/0x470 mm/slub.c:2576 __slab_alloc.isra.0.constprop.0+0x50/0xa0 mm/slub.c:2618 slab_alloc_node mm/slub.c:2681 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0x212/0x2b0 mm/slub.c:2728 mempool_alloc_slab+0x47/0x60 mm/mempool.c:449 mempool_alloc+0x149/0x360 mm/mempool.c:329 bio_alloc_bioset+0x3fb/0x7d0 block/bio.c:474 bio_alloc include/linux/bio.h:393 [inline] io_submit_init_bio fs/ext4/page-io.c:362 [inline] io_submit_add_bh fs/ext4/page-io.c:387 [inline] ext4_bio_write_page+0x5a6/0xb60 fs/ext4/page-io.c:492 mpage_submit_page+0x138/0x240 fs/ext4/inode.c:2144 mpage_process_page_bufs+0x3b7/0x4a0 fs/ext4/inode.c:2249 mpage_prepare_extent_to_map+0x449/0x9a0 fs/ext4/inode.c:2618 ext4_writepages+0xf2e/0x2de0 fs/ext4/inode.c:2780 do_writepages+0xfc/0x1e0 mm/page-writeback.c:2338 __writeback_single_inode+0xd9/0x1040 fs/fs-writeback.c:1358 writeback_sb_inodes+0x50f/0xea0 fs/fs-writeback.c:1622 __writeback_inodes_wb+0xc3/0x210 fs/fs-writeback.c:1691 wb_writeback+0x637/0xbd0 fs/fs-writeback.c:1800 wb_do_writeback fs/fs-writeback.c:1932 [inline] wb_workfn+0x1c4/0xe70 fs/fs-writeback.c:1968 process_one_work+0x88b/0x1600 kernel/workqueue.c:2114 worker_thread+0x5df/0x11d0 kernel/workqueue.c:2251 kthread+0x278/0x310 kernel/kthread.c:211 ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(lmk_event_lock); lock(&mm->mmap_sem); lock(lmk_event_lock); lock(&mm->mmap_sem); *** DEADLOCK *** 7 locks held by kworker/u4:1/64: #0: ("writeback"){.+.+.+}, at: [<00000000dd1692de>] process_one_work+0x790/0x1600 kernel/workqueue.c:2107 #1: ((&(&wb->dwork)->work)){+.+.+.}, at: [<000000000b053591>] process_one_work+0x7ce/0x1600 kernel/workqueue.c:2111 #2: (&type->s_umount_key#32){++++.+}, at: [<00000000750b46aa>] trylock_super+0x20/0xf0 fs/super.c:403 #3: (&sbi->s_journal_flag_rwsem){.+.+.+}, at: [<00000000cf868d9c>] do_writepages+0xfc/0x1e0 mm/page-writeback.c:2338 #4: (shrinker_rwsem){++++..}, at: [<000000002c7b2a51>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #5: (rcu_read_lock){......}, at: [<0000000036cd7b38>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 #6: (lmk_event_lock){+.+.-.}, at: [<000000007ff47884>] spin_lock include/linux/spinlock.h:302 [inline] #6: (lmk_event_lock){+.+.-.}, at: [<000000007ff47884>] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 stack backtrace: CPU: 1 PID: 64 Comm: kworker/u4:1 Tainted: G W 4.9.180+ #3 Workqueue: writeback wb_workfn (flush-8:0) ffff8801d7936428 ffffffff81b577f1 ffffffff83cad760 ffffffff83ccb4f0 ffffffff83cad760 ffffffff8424eec0 ffff8801d7812f80 ffff8801d7936480 ffffffff8140513c 0000000000000007 ffff8801d7936570 ffff8801d7813948 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000012a0016a>] print_circular_bug.cold+0x2f6/0x454 kernel/locking/lockdep.c:1202 [<00000000bc713c5a>] check_prev_add kernel/locking/lockdep.c:1828 [inline] [<00000000bc713c5a>] check_prevs_add kernel/locking/lockdep.c:1938 [inline] [<00000000bc713c5a>] validate_chain kernel/locking/lockdep.c:2265 [inline] [<00000000bc713c5a>] __lock_acquire+0x2d10/0x4350 kernel/locking/lockdep.c:3345 [<00000000bf14216a>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<00000000a89d7cf3>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<00000000470b338e>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<000000003fa5584d>] handle_lmk_event+0x13c/0x8a0 drivers/staging/android/lowmemorykiller.c:128 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<000000006a388b1b>] __alloc_pages include/linux/gfp.h:433 [inline] [<000000006a388b1b>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<000000006a388b1b>] alloc_slab_page mm/slub.c:1408 [inline] [<000000006a388b1b>] allocate_slab mm/slub.c:1549 [inline] [<000000006a388b1b>] new_slab+0xa2/0x3e0 mm/slub.c:1635 [<00000000ccf28ad5>] new_slab_objects mm/slub.c:2419 [inline] [<00000000ccf28ad5>] ___slab_alloc.constprop.0+0x361/0x470 mm/slub.c:2576 [<0000000017c74551>] __slab_alloc.isra.0.constprop.0+0x50/0xa0 mm/slub.c:2618 [<00000000643a3a18>] slab_alloc_node mm/slub.c:2681 [inline] [<00000000643a3a18>] slab_alloc mm/slub.c:2723 [inline] [<00000000643a3a18>] kmem_cache_alloc+0x212/0x2b0 mm/slub.c:2728 [<00000000162c6d4a>] mempool_alloc_slab+0x47/0x60 mm/mempool.c:449 [<00000000026f3879>] mempool_alloc+0x149/0x360 mm/mempool.c:329 [<00000000a90f361a>] bio_alloc_bioset+0x3fb/0x7d0 block/bio.c:474 [<000000000c22ff71>] bio_alloc include/linux/bio.h:393 [inline] [<000000000c22ff71>] io_submit_init_bio fs/ext4/page-io.c:362 [inline] [<000000000c22ff71>] io_submit_add_bh fs/ext4/page-io.c:387 [inline] [<000000000c22ff71>] ext4_bio_write_page+0x5a6/0xb60 fs/ext4/page-io.c:492 [<0000000081864c4e>] mpage_submit_page+0x138/0x240 fs/ext4/inode.c:2144 [<000000001b1a2c33>] mpage_process_page_bufs+0x3b7/0x4a0 fs/ext4/inode.c:2249 [<00000000c466caa5>] mpage_prepare_extent_to_map+0x449/0x9a0 fs/ext4/inode.c:2618 [<000000005fe8f5e6>] ext4_writepages+0xf2e/0x2de0 fs/ext4/inode.c:2780 [<00000000cf868d9c>] do_writepages+0xfc/0x1e0 mm/page-writeback.c:2338 [<00000000980916d2>] __writeback_single_inode+0xd9/0x1040 fs/fs-writeback.c:1358 [<000000008889bc90>] writeback_sb_inodes+0x50f/0xea0 fs/fs-writeback.c:1622 [<000000002b21c1ba>] __writeback_inodes_wb+0xc3/0x210 fs/fs-writeback.c:1691 [<000000009ac2442f>] wb_writeback+0x637/0xbd0 fs/fs-writeback.c:1800 [<000000007c53049e>] wb_do_writeback fs/fs-writeback.c:1932 [inline] [<000000007c53049e>] wb_workfn+0x1c4/0xe70 fs/fs-writeback.c:1968 [<00000000f3d206be>] process_one_work+0x88b/0x1600 kernel/workqueue.c:2114 [<00000000e4819c22>] worker_thread+0x5df/0x11d0 kernel/workqueue.c:2251 [<0000000074338835>] kthread+0x278/0x310 kernel/kthread.c:211 [<000000007c4478ed>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 lowmemorykiller: Killing 'syz-executor793' (3144) (tgid 3144), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4061) because cache 35668kB is below limit 65536kB for oom_score_adj 12 Free memory is -13456kB above reserved lowmemorykiller: Killing 'syz-executor793' (3147) (tgid 3147), adj 1000, to free 12172kB on behalf of 'kworker/u4:1' (64) because cache 35368kB is below limit 65536kB for oom_score_adj 12 Free memory is -456kB above reserved lowmemorykiller: Killing 'syz-executor793' (3153) (tgid 3153), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4077) because cache 35320kB is below limit 65536kB for oom_score_adj 12 Free memory is -13328kB above reserved lowmemorykiller: Killing 'syz-executor793' (3162) (tgid 3162), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4077) because cache 35220kB is below limit 65536kB for oom_score_adj 12 Free memory is -13344kB above reserved lowmemorykiller: Killing 'syz-executor793' (3171) (tgid 3171), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4077) because cache 35120kB is below limit 65536kB for oom_score_adj 12 Free memory is -13344kB above reserved lowmemorykiller: Killing 'syz-executor793' (3174) (tgid 3174), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4086) because cache 34508kB is below limit 65536kB for oom_score_adj 12 Free memory is -13372kB above reserved lowmemorykiller: Killing 'syz-executor793' (3189) (tgid 3189), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4086) because cache 34408kB is below limit 65536kB for oom_score_adj 12 Free memory is -13300kB above reserved lowmemorykiller: Killing 'syz-executor793' (3192) (tgid 3192), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4086) because cache 34308kB is below limit 65536kB for oom_score_adj 12 Free memory is -13300kB above reserved lowmemorykiller: Killing 'syz-executor793' (3204) (tgid 3204), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4095) because cache 34044kB is below limit 65536kB for oom_score_adj 12 Free memory is -13240kB above reserved lowmemorykiller: Killing 'syz-executor793' (3207) (tgid 3207), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4095) because cache 33944kB is below limit 65536kB for oom_score_adj 12 Free memory is -3140kB above reserved lowmemorykiller: Killing 'syz-executor793' (3210) (tgid 3210), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4095) because cache 33944kB is below limit 65536kB for oom_score_adj 12 Free memory is 960kB above reserved lowmemorykiller: Killing 'syz-executor793' (3243) (tgid 3243), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4095) because cache 33944kB is below limit 65536kB for oom_score_adj 12 Free memory is 11960kB above reserved lowmemorykiller: Killing 'syz-executor793' (3246) (tgid 3246), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4107) because cache 33908kB is below limit 65536kB for oom_score_adj 12 Free memory is -13312kB above reserved lowmemorykiller: Killing 'syz-executor793' (3252) (tgid 3252), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4107) because cache 33808kB is below limit 65536kB for oom_score_adj 12 Free memory is -13404kB above reserved lowmemorykiller: Killing 'syz-executor793' (3255) (tgid 3255), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4107) because cache 33508kB is below limit 65536kB for oom_score_adj 12 Free memory is -2916kB above reserved lowmemorykiller: Killing 'syz-executor793' (3258) (tgid 3258), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4116) because cache 33536kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor793' (3264) (tgid 3264), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4116) because cache 33336kB is below limit 65536kB for oom_score_adj 12 Free memory is -13328kB above reserved lowmemorykiller: Killing 'syz-executor793' (3267) (tgid 3267), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4116) because cache 33336kB is below limit 65536kB for oom_score_adj 12 Free memory is -4752kB above reserved lowmemorykiller: Killing 'syz-executor793' (3270) (tgid 3270), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4116) because cache 33436kB is below limit 65536kB for oom_score_adj 12 Free memory is 5372kB above reserved lowmemorykiller: Killing 'syz-executor793' (3279) (tgid 3279), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4116) because cache 33336kB is below limit 65536kB for oom_score_adj 12 Free memory is 12172kB above reserved lowmemorykiller: Killing 'syz-executor793' (3282) (tgid 3282), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4116) because cache 33364kB is below limit 65536kB for oom_score_adj 12 Free memory is 20176kB above reserved lowmemorykiller: Killing 'syz-executor793' (3291) (tgid 3291), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4134) because cache 33308kB is below limit 65536kB for oom_score_adj 12 Free memory is -13364kB above reserved lowmemorykiller: Killing 'syz-executor793' (3294) (tgid 3294), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4137) because cache 33208kB is below limit 65536kB for oom_score_adj 12 Free memory is -13240kB above reserved lowmemorykiller: Killing 'syz-executor793' (3303) (tgid 3303), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4137) because cache 33108kB is below limit 65536kB for oom_score_adj 12 Free memory is -8540kB above reserved lowmemorykiller: Killing 'syz-executor793' (3321) (tgid 3321), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4137) because cache 33108kB is below limit 65536kB for oom_score_adj 12 Free memory is -652kB above reserved lowmemorykiller: Killing 'syz-executor793' (3327) (tgid 3327), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4137) because cache 33108kB is below limit 65536kB for oom_score_adj 12 Free memory is 7048kB above reserved lowmemorykiller: Killing 'syz-executor793' (3330) (tgid 3330), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4149) because cache 32972kB is below limit 65536kB for oom_score_adj 12 Free memory is -13356kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4149, name: syz-executor793 INFO: lockdep is turned off. Preemption disabled at: [<00000000892b4196>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000892b4196>] task_lock include/linux/sched.h:3217 [inline] [<00000000892b4196>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 0 PID: 4149 Comm: syz-executor793 Tainted: G W 4.9.180+ #3 ffff88000a6e7018 ffffffff81b577f1 0000000000000000 0000000000000001 ffff8800712b97c0 ffffffff810d0c30 ffff8800712b97c0 ffff88000a6e7050 ffffffff8140008c ffff8800712b97c0 ffffffff82a39900 0000000000000387 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003346df05>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000f46d27a6>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006f5d4197>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000131b3afa>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000bead42d7>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000bead42d7>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000bead42d7>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000bead42d7>] shmem_alloc_page mm/shmem.c:1437 [inline] [<00000000bead42d7>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<00000000bead42d7>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<0000000024cb10e4>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<000000004a20a813>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000093f2f5e1>] do_read_fault mm/memory.c:3202 [inline] [<0000000093f2f5e1>] do_fault mm/memory.c:3338 [inline] [<0000000093f2f5e1>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000093f2f5e1>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000093f2f5e1>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000fc967581>] faultin_page mm/gup.c:386 [inline] [<00000000fc967581>] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 [<00000000a6165207>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 [<00000000e0cd2216>] __mm_populate+0x1b9/0x300 mm/gup.c:1154 [<000000006cbba76f>] mm_populate include/linux/mm.h:2052 [inline] [<000000006cbba76f>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<00000000c88c9c6b>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<00000000c88c9c6b>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<000000002860673d>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<000000002860673d>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<000000003163f750>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000dfcb97ec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor793' (3333) (tgid 3333), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4149) because cache 32972kB is below limit 65536kB for oom_score_adj 12 Free memory is -13356kB above reserved lowmemorykiller: Killing 'syz-executor793' (3336) (tgid 3336), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4155) because cache 32844kB is below limit 65536kB for oom_score_adj 12 Free memory is -13360kB above reserved lowmemorykiller: Killing 'syz-executor793' (3339) (tgid 3339), adj 1000, to free 12172kB on behalf of 'syz-executor793' (2103) because cache 32808kB is below limit 65536kB for oom_score_adj 12 Free memory is -13388kB above reserved lowmemorykiller: Killing 'syz-executor793' (3354) (tgid 3354), adj 1000, to free 12172kB on behalf of 'syz-executor793' (2103) because cache 32680kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor793' (3357) (tgid 3357), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4164) because cache 32480kB is below limit 65536kB for oom_score_adj 12 Free memory is -13288kB above reserved lowmemorykiller: Killing 'syz-executor793' (3360) (tgid 3360), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4164) because cache 32480kB is below limit 65536kB for oom_score_adj 12 Free memory is -10688kB above reserved lowmemorykiller: Killing 'syz-executor793' (3363) (tgid 3363), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4164) because cache 32480kB is below limit 65536kB for oom_score_adj 12 Free memory is -2908kB above reserved lowmemorykiller: Killing 'syz-executor793' (3366) (tgid 3366), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4164) because cache 32380kB is below limit 65536kB for oom_score_adj 12 Free memory is 12288kB above reserved lowmemorykiller: Killing 'syz-executor793' (3369) (tgid 3369), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4164) because cache 32380kB is below limit 65536kB for oom_score_adj 12 Free memory is 23976kB above reserved lowmemorykiller: Killing 'syz-executor793' (3372) (tgid 3372), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4179) because cache 32424kB is below limit 65536kB for oom_score_adj 12 Free memory is -13316kB above reserved lowmemorykiller: Killing 'syz-executor793' (3378) (tgid 3378), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4179) because cache 32224kB is below limit 65536kB for oom_score_adj 12 Free memory is -10216kB above reserved lowmemorykiller: Killing 'syz-executor793' (3390) (tgid 3390), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4185) because cache 32296kB is below limit 65536kB for oom_score_adj 12 Free memory is -13416kB above reserved lowmemorykiller: Killing 'syz-executor793' (3399) (tgid 3399), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4185) because cache 32096kB is below limit 65536kB for oom_score_adj 12 Free memory is -13312kB above reserved lowmemorykiller: Killing 'syz-executor793' (3402) (tgid 3402), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4185) because cache 32096kB is below limit 65536kB for oom_score_adj 12 Free memory is -13336kB above reserved lowmemorykiller: Killing 'syz-executor793' (3414) (tgid 3414), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4185) because cache 32096kB is below limit 65536kB for oom_score_adj 12 Free memory is -13336kB above reserved lowmemorykiller: Killing 'syz-executor793' (3417) (tgid 3417), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4197) because cache 31760kB is below limit 65536kB for oom_score_adj 12 Free memory is -13332kB above reserved lowmemorykiller: Killing 'syz-executor793' (3423) (tgid 3423), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4197) because cache 31560kB is below limit 65536kB for oom_score_adj 12 Free memory is -13332kB above reserved lowmemorykiller: Killing 'syz-executor793' (3426) (tgid 3426), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4203) because cache 31508kB is below limit 65536kB for oom_score_adj 12 Free memory is -13360kB above reserved lowmemorykiller: Killing 'syz-executor793' (3429) (tgid 3429), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4209) because cache 31308kB is below limit 65536kB for oom_score_adj 12 Free memory is -13444kB above reserved lowmemorykiller: Killing 'syz-executor793' (3432) (tgid 3432), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4209) because cache 31208kB is below limit 65536kB for oom_score_adj 12 Free memory is -4044kB above reserved lowmemorykiller: Killing 'syz-executor793' (3441) (tgid 3441), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4209) because cache 31208kB is below limit 65536kB for oom_score_adj 12 Free memory is 3756kB above reserved lowmemorykiller: Killing 'syz-executor793' (3444) (tgid 3444), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4209) because cache 31208kB is below limit 65536kB for oom_score_adj 12 Free memory is 11440kB above reserved lowmemorykiller: Killing 'syz-executor793' (3450) (tgid 3450), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4209) because cache 31108kB is below limit 65536kB for oom_score_adj 12 Free memory is 18740kB above reserved lowmemorykiller: Killing 'syz-executor793' (3453) (tgid 3453), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4209) because cache 31108kB is below limit 65536kB for oom_score_adj 12 Free memory is 26724kB above reserved lowmemorykiller: Killing 'syz-executor793' (3465) (tgid 3465), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4209) because cache 31008kB is below limit 65536kB for oom_score_adj 12 Free memory is 34124kB above reserved lowmemorykiller: Killing 'syz-executor793' (3471) (tgid 3471), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4227) because cache 31056kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4227, name: syz-executor793 INFO: lockdep is turned off. Preemption disabled at: [<00000000892b4196>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000892b4196>] task_lock include/linux/sched.h:3217 [inline] [<00000000892b4196>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 0 PID: 4227 Comm: syz-executor793 Tainted: G W 4.9.180+ #3 ffff880049037018 ffffffff81b577f1 0000000000000000 0000000000000001 ffff88004901c740 ffffffff810d0c30 ffff88004901c740 ffff880049037050 ffffffff8140008c ffff88004901c740 ffffffff82a39900 0000000000000387 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003346df05>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000f46d27a6>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006f5d4197>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000131b3afa>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000bead42d7>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000bead42d7>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000bead42d7>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000bead42d7>] shmem_alloc_page mm/shmem.c:1437 [inline] [<00000000bead42d7>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<00000000bead42d7>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<0000000024cb10e4>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<000000004a20a813>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000093f2f5e1>] do_read_fault mm/memory.c:3202 [inline] [<0000000093f2f5e1>] do_fault mm/memory.c:3338 [inline] [<0000000093f2f5e1>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000093f2f5e1>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000093f2f5e1>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000fc967581>] faultin_page mm/gup.c:386 [inline] [<00000000fc967581>] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 [<00000000a6165207>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 [<00000000e0cd2216>] __mm_populate+0x1b9/0x300 mm/gup.c:1154 [<000000006cbba76f>] mm_populate include/linux/mm.h:2052 [inline] [<000000006cbba76f>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<00000000c88c9c6b>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<00000000c88c9c6b>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<000000002860673d>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<000000002860673d>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<000000003163f750>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000dfcb97ec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor793' (3477) (tgid 3477), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4227) because cache 30856kB is below limit 65536kB for oom_score_adj 12 Free memory is -13224kB above reserved lowmemorykiller: Killing 'syz-executor793' (3489) (tgid 3489), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4227) because cache 30856kB is below limit 65536kB for oom_score_adj 12 Free memory is -13224kB above reserved lowmemorykiller: Killing 'syz-executor793' (3498) (tgid 3498), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4227) because cache 30856kB is below limit 65536kB for oom_score_adj 12 Free memory is 4676kB above reserved lowmemorykiller: Killing 'syz-executor793' (3501) (tgid 3501), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4227) because cache 30756kB is below limit 65536kB for oom_score_adj 12 Free memory is 23476kB above reserved lowmemorykiller: Killing 'syz-executor793' (3510) (tgid 3510), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4227) because cache 30656kB is below limit 65536kB for oom_score_adj 12 Free memory is 34048kB above reserved lowmemorykiller: Killing 'syz-executor793' (3534) (tgid 3534), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4227) because cache 30656kB is below limit 65536kB for oom_score_adj 12 Free memory is 41928kB above reserved lowmemorykiller: Killing 'syz-executor793' (3537) (tgid 3537), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4248) because cache 30600kB is below limit 65536kB for oom_score_adj 12 Free memory is -13228kB above reserved lowmemorykiller: Killing 'syz-executor793' (3540) (tgid 3540), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4254) because cache 30348kB is below limit 65536kB for oom_score_adj 12 Free memory is -13328kB above reserved lowmemorykiller: Killing 'syz-executor793' (3555) (tgid 3555), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4254) because cache 30348kB is below limit 65536kB for oom_score_adj 12 Free memory is -4528kB above reserved lowmemorykiller: Killing 'syz-executor793' (3558) (tgid 3558), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4254) because cache 30348kB is below limit 65536kB for oom_score_adj 12 Free memory is 2952kB above reserved lowmemorykiller: Killing 'syz-executor793' (3561) (tgid 3561), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 30124kB is below limit 65536kB for oom_score_adj 12 Free memory is -13360kB above reserved lowmemorykiller: Killing 'syz-executor793' (3567) (tgid 3567), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 30124kB is below limit 65536kB for oom_score_adj 12 Free memory is -10060kB above reserved lowmemorykiller: Killing 'syz-executor793' (3570) (tgid 3570), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 30124kB is below limit 65536kB for oom_score_adj 12 Free memory is -3360kB above reserved lowmemorykiller: Killing 'syz-executor793' (3573) (tgid 3573), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 30124kB is below limit 65536kB for oom_score_adj 12 Free memory is 4440kB above reserved lowmemorykiller: Killing 'syz-executor793' (3582) (tgid 3582), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 30124kB is below limit 65536kB for oom_score_adj 12 Free memory is 13740kB above reserved lowmemorykiller: Killing 'syz-executor793' (3585) (tgid 3585), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 30124kB is below limit 65536kB for oom_score_adj 12 Free memory is 20040kB above reserved lowmemorykiller: Killing 'syz-executor793' (3591) (tgid 3591), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 30024kB is below limit 65536kB for oom_score_adj 12 Free memory is 32316kB above reserved lowmemorykiller: Killing 'syz-executor793' (3639) (tgid 3639), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 29924kB is below limit 65536kB for oom_score_adj 12 Free memory is 35216kB above reserved lowmemorykiller: Killing 'syz-executor793' (3648) (tgid 3648), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 29900kB is below limit 65536kB for oom_score_adj 12 Free memory is 43292kB above reserved lowmemorykiller: Killing 'syz-executor793' (3651) (tgid 3651), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4260) because cache 29900kB is below limit 65536kB for oom_score_adj 12 Free memory is 50892kB above reserved lowmemorykiller: Killing 'syz-executor793' (3654) (tgid 3654), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29880kB is below limit 65536kB for oom_score_adj 12 Free memory is -13336kB above reserved lowmemorykiller: Killing 'syz-executor793' (3666) (tgid 3666), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29880kB is below limit 65536kB for oom_score_adj 12 Free memory is -11136kB above reserved lowmemorykiller: Killing 'syz-executor793' (3669) (tgid 3669), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29880kB is below limit 65536kB for oom_score_adj 12 Free memory is -4836kB above reserved lowmemorykiller: Killing 'syz-executor793' (3675) (tgid 3675), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29880kB is below limit 65536kB for oom_score_adj 12 Free memory is -1336kB above reserved lowmemorykiller: Killing 'syz-executor793' (3678) (tgid 3678), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29880kB is below limit 65536kB for oom_score_adj 12 Free memory is 16456kB above reserved lowmemorykiller: Killing 'syz-executor793' (3681) (tgid 3681), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29880kB is below limit 65536kB for oom_score_adj 12 Free memory is 34756kB above reserved lowmemorykiller: Killing 'syz-executor793' (3687) (tgid 3687), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29880kB is below limit 65536kB for oom_score_adj 12 Free memory is 41856kB above reserved lowmemorykiller: Killing 'syz-executor793' (3690) (tgid 3690), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4290) because cache 29780kB is below limit 65536kB for oom_score_adj 12 Free memory is 61156kB above reserved lowmemorykiller: Killing 'syz-executor793' (3696) (tgid 3696), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4314) because cache 29664kB is below limit 65536kB for oom_score_adj 12 Free memory is -13280kB above reserved lowmemorykiller: Killing 'syz-executor793' (3699) (tgid 3699), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4314) because cache 29664kB is below limit 65536kB for oom_score_adj 12 Free memory is -10080kB above reserved lowmemorykiller: Killing 'syz-executor793' (3702) (tgid 3702), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4314) because cache 29664kB is below limit 65536kB for oom_score_adj 12 Free memory is -2180kB above reserved lowmemorykiller: Killing 'syz-executor793' (3708) (tgid 3708), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4314) because cache 29664kB is below limit 65536kB for oom_score_adj 12 Free memory is 6904kB above reserved lowmemorykiller: Killing 'syz-executor793' (3711) (tgid 3711), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4314) because cache 29664kB is below limit 65536kB for oom_score_adj 12 Free memory is 13304kB above reserved lowmemorykiller: Killing 'syz-executor793' (3717) (tgid 3717), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4314) because cache 29664kB is below limit 65536kB for oom_score_adj 12 Free memory is 22604kB above reserved lowmemorykiller: Killing 'syz-executor793' (3723) (tgid 3723), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4314) because cache 29664kB is below limit 65536kB for oom_score_adj 12 Free memory is 28504kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4314, name: syz-executor793 INFO: lockdep is turned off. Preemption disabled at: [<00000000892b4196>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000892b4196>] task_lock include/linux/sched.h:3217 [inline] [<00000000892b4196>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4314 Comm: syz-executor793 Tainted: G W 4.9.180+ #3 ffff88004913f018 ffffffff81b577f1 0000000000000000 0000000000000001 ffff88001f2fdf00 ffffffff810d0c30 ffff88001f2fdf00 ffff88004913f050 ffffffff8140008c ffff88001f2fdf00 ffffffff82a39900 0000000000000387 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003346df05>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000f46d27a6>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006f5d4197>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000131b3afa>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000bead42d7>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000bead42d7>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000bead42d7>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000bead42d7>] shmem_alloc_page mm/shmem.c:1437 [inline] [<00000000bead42d7>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<00000000bead42d7>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<0000000024cb10e4>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<000000004a20a813>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000093f2f5e1>] do_read_fault mm/memory.c:3202 [inline] [<0000000093f2f5e1>] do_fault mm/memory.c:3338 [inline] [<0000000093f2f5e1>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000093f2f5e1>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000093f2f5e1>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000fc967581>] faultin_page mm/gup.c:386 [inline] [<00000000fc967581>] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 [<00000000a6165207>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 [<00000000e0cd2216>] __mm_populate+0x1b9/0x300 mm/gup.c:1154 [<000000006cbba76f>] mm_populate include/linux/mm.h:2052 [inline] [<000000006cbba76f>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<00000000c88c9c6b>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<00000000c88c9c6b>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<000000002860673d>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<000000002860673d>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<000000003163f750>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000dfcb97ec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor793' (3729) (tgid 3729), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4335) because cache 29452kB is below limit 65536kB for oom_score_adj 12 Free memory is -13300kB above reserved lowmemorykiller: Killing 'syz-executor793' (3732) (tgid 3732), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4335) because cache 29452kB is below limit 65536kB for oom_score_adj 12 Free memory is -10500kB above reserved lowmemorykiller: Killing 'syz-executor793' (3735) (tgid 3735), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4335) because cache 29252kB is below limit 65536kB for oom_score_adj 12 Free memory is -7624kB above reserved lowmemorykiller: Killing 'syz-executor793' (3738) (tgid 3738), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29240kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor793' (3744) (tgid 3744), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29240kB is below limit 65536kB for oom_score_adj 12 Free memory is -11048kB above reserved lowmemorykiller: Killing 'syz-executor793' (3750) (tgid 3750), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29240kB is below limit 65536kB for oom_score_adj 12 Free memory is -1464kB above reserved lowmemorykiller: Killing 'syz-executor793' (3753) (tgid 3753), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29240kB is below limit 65536kB for oom_score_adj 12 Free memory is 4932kB above reserved lowmemorykiller: Killing 'syz-executor793' (3762) (tgid 3762), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29240kB is below limit 65536kB for oom_score_adj 12 Free memory is 14232kB above reserved lowmemorykiller: Killing 'syz-executor793' (3765) (tgid 3765), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29240kB is below limit 65536kB for oom_score_adj 12 Free memory is 20432kB above reserved lowmemorykiller: Killing 'syz-executor793' (3768) (tgid 3768), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29040kB is below limit 65536kB for oom_score_adj 12 Free memory is 22032kB above reserved lowmemorykiller: Killing 'syz-executor793' (3771) (tgid 3771), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4344) because cache 29040kB is below limit 65536kB for oom_score_adj 12 Free memory is 50608kB above reserved lowmemorykiller: Killing 'syz-executor793' (3780) (tgid 3780), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4368) because cache 29028kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor793' (3786) (tgid 3786), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4368) because cache 29028kB is below limit 65536kB for oom_score_adj 12 Free memory is -8924kB above reserved lowmemorykiller: Killing 'syz-executor793' (3789) (tgid 3789), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4368) because cache 29028kB is below limit 65536kB for oom_score_adj 12 Free memory is -2824kB above reserved lowmemorykiller: Killing 'syz-executor793' (3795) (tgid 3795), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4368) because cache 29028kB is below limit 65536kB for oom_score_adj 12 Free memory is 4876kB above reserved lowmemorykiller: Killing 'syz-executor793' (3798) (tgid 3798), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4380) because cache 28816kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor793' (3807) (tgid 3807), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4380) because cache 28816kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor793' (3810) (tgid 3810), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4386) because cache 28604kB is below limit 65536kB for oom_score_adj 12 Free memory is -13360kB above reserved lowmemorykiller: Killing 'syz-executor793' (3813) (tgid 3813), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4386) because cache 28404kB is below limit 65536kB for oom_score_adj 12 Free memory is -13384kB above reserved lowmemorykiller: Killing 'syz-executor793' (3816) (tgid 3816), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4386) because cache 28404kB is below limit 65536kB for oom_score_adj 12 Free memory is -3308kB above reserved lowmemorykiller: Killing 'syz-executor793' (3825) (tgid 3825), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4386) because cache 28304kB is below limit 65536kB for oom_score_adj 12 Free memory is 3916kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4386, name: syz-executor793 INFO: lockdep is turned off. Preemption disabled at: [<00000000892b4196>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000892b4196>] task_lock include/linux/sched.h:3217 [inline] [<00000000892b4196>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4386 Comm: syz-executor793 Tainted: G W 4.9.180+ #3 ffff8801ca797018 ffffffff81b577f1 0000000000000000 0000000000000001 ffff8801c5008000 ffffffff810d0c30 ffff8801c5008000 ffff8801ca797050 ffffffff8140008c ffff8801c5008000 ffffffff82a39900 0000000000000387 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003346df05>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000f46d27a6>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006f5d4197>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000131b3afa>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000bead42d7>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000bead42d7>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000bead42d7>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000bead42d7>] shmem_alloc_page mm/shmem.c:1437 [inline] [<00000000bead42d7>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<00000000bead42d7>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<0000000024cb10e4>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<000000004a20a813>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000093f2f5e1>] do_read_fault mm/memory.c:3202 [inline] [<0000000093f2f5e1>] do_fault mm/memory.c:3338 [inline] [<0000000093f2f5e1>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000093f2f5e1>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000093f2f5e1>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000fc967581>] faultin_page mm/gup.c:386 [inline] [<00000000fc967581>] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 [<00000000a6165207>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 [<00000000e0cd2216>] __mm_populate+0x1b9/0x300 mm/gup.c:1154 [<000000006cbba76f>] mm_populate include/linux/mm.h:2052 [inline] [<000000006cbba76f>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<00000000c88c9c6b>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<00000000c88c9c6b>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<000000002860673d>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<000000002860673d>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<000000003163f750>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000dfcb97ec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor793' (3828) (tgid 3828), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4398) because cache 28196kB is below limit 65536kB for oom_score_adj 12 Free memory is -13296kB above reserved lowmemorykiller: Killing 'syz-executor793' (3834) (tgid 3834), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4398) because cache 28196kB is below limit 65536kB for oom_score_adj 12 Free memory is -9296kB above reserved lowmemorykiller: Killing 'syz-executor793' (3840) (tgid 3840), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4398) because cache 28196kB is below limit 65536kB for oom_score_adj 12 Free memory is -1392kB above reserved lowmemorykiller: Killing 'syz-executor793' (3843) (tgid 3843), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4407) because cache 27996kB is below limit 65536kB for oom_score_adj 12 Free memory is -13384kB above reserved lowmemorykiller: Killing 'syz-executor793' (3849) (tgid 3849), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4407) because cache 27796kB is below limit 65536kB for oom_score_adj 12 Free memory is -13296kB above reserved lowmemorykiller: Killing 'syz-executor793' (3855) (tgid 3855), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4407) because cache 27796kB is below limit 65536kB for oom_score_adj 12 Free memory is -13296kB above reserved lowmemorykiller: Killing 'syz-executor793' (3858) (tgid 3858), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4407) because cache 27796kB is below limit 65536kB for oom_score_adj 12 Free memory is -9296kB above reserved lowmemorykiller: Killing 'syz-executor793' (3864) (tgid 3864), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4407) because cache 27796kB is below limit 65536kB for oom_score_adj 12 Free memory is -8596kB above reserved lowmemorykiller: Killing 'syz-executor793' (3867) (tgid 3867), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27596kB is below limit 65536kB for oom_score_adj 12 Free memory is -13300kB above reserved lowmemorykiller: Killing 'syz-executor793' (3870) (tgid 3870), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is -13336kB above reserved lowmemorykiller: Killing 'syz-executor793' (3876) (tgid 3876), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is -3460kB above reserved lowmemorykiller: Killing 'syz-executor793' (3882) (tgid 3882), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is -2760kB above reserved lowmemorykiller: Killing 'syz-executor793' (3888) (tgid 3888), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is 11492kB above reserved lowmemorykiller: Killing 'syz-executor793' (3891) (tgid 3891), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is 24092kB above reserved lowmemorykiller: Killing 'syz-executor793' (3894) (tgid 3894), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is 29192kB above reserved lowmemorykiller: Killing 'syz-executor793' (3897) (tgid 3897), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is 39392kB above reserved lowmemorykiller: Killing 'syz-executor793' (3900) (tgid 3900), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is 39892kB above reserved lowmemorykiller: Killing 'syz-executor793' (3906) (tgid 3906), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4422) because cache 27396kB is below limit 65536kB for oom_score_adj 12 Free memory is 52272kB above reserved lowmemorykiller: Killing 'syz-executor793' (3909) (tgid 3909), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4452) because cache 27200kB is below limit 65536kB for oom_score_adj 12 Free memory is -13308kB above reserved lowmemorykiller: Killing 'syz-executor793' (3912) (tgid 3912), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4452) because cache 27000kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor793' (3927) (tgid 3927), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4452) because cache 27000kB is below limit 65536kB for oom_score_adj 12 Free memory is -13472kB above reserved lowmemorykiller: Killing 'syz-executor793' (3930) (tgid 3930), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4461) because cache 26808kB is below limit 65536kB for oom_score_adj 12 Free memory is -13304kB above reserved lowmemorykiller: Killing 'syz-executor793' (3945) (tgid 3945), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4461) because cache 26808kB is below limit 65536kB for oom_score_adj 12 Free memory is -11004kB above reserved lowmemorykiller: Killing 'syz-executor793' (3948) (tgid 3948), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4461) because cache 26708kB is below limit 65536kB for oom_score_adj 12 Free memory is -9504kB above reserved lowmemorykiller: Killing 'syz-executor793' (3951) (tgid 3951), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4470) because cache 26612kB is below limit 65536kB for oom_score_adj 12 Free memory is -13260kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4470, name: syz-executor793 INFO: lockdep is turned off. Preemption disabled at: [<00000000892b4196>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000892b4196>] task_lock include/linux/sched.h:3217 [inline] [<00000000892b4196>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4470 Comm: syz-executor793 Tainted: G W 4.9.180+ #3 ffff8801cd91f018 ffffffff81b577f1 0000000000000000 0000000000000001 ffff8801cc3ac740 ffffffff810d0c30 ffff8801cc3ac740 ffff8801cd91f050 ffffffff8140008c ffff8801cc3ac740 ffffffff82a39900 0000000000000387 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003346df05>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000f46d27a6>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006f5d4197>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000131b3afa>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000bead42d7>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000bead42d7>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000bead42d7>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000bead42d7>] shmem_alloc_page mm/shmem.c:1437 [inline] [<00000000bead42d7>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<00000000bead42d7>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<0000000024cb10e4>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<000000004a20a813>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000093f2f5e1>] do_read_fault mm/memory.c:3202 [inline] [<0000000093f2f5e1>] do_fault mm/memory.c:3338 [inline] [<0000000093f2f5e1>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000093f2f5e1>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000093f2f5e1>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000fc967581>] faultin_page mm/gup.c:386 [inline] [<00000000fc967581>] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 [<00000000a6165207>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 [<00000000e0cd2216>] __mm_populate+0x1b9/0x300 mm/gup.c:1154 [<000000006cbba76f>] mm_populate include/linux/mm.h:2052 [inline] [<000000006cbba76f>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<00000000c88c9c6b>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<00000000c88c9c6b>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<000000002860673d>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<000000002860673d>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<000000003163f750>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000dfcb97ec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor793' (3954) (tgid 3954), adj 1000, to free 12172kB on behalf of 'syz-executor793' (2103) because cache 26412kB is below limit 65536kB for oom_score_adj 12 Free memory is -13308kB above reserved lowmemorykiller: Killing 'syz-executor793' (3960) (tgid 3960), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4479) because cache 26224kB is below limit 65536kB for oom_score_adj 12 Free memory is -13344kB above reserved lowmemorykiller: Killing 'syz-executor793' (3969) (tgid 3969), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4479) because cache 26124kB is below limit 65536kB for oom_score_adj 12 Free memory is -13344kB above reserved lowmemorykiller: Killing 'syz-executor793' (3972) (tgid 3972), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4482) because cache 25852kB is below limit 65536kB for oom_score_adj 12 Free memory is -13252kB above reserved lowmemorykiller: Killing 'syz-executor793' (3975) (tgid 3975), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4488) because cache 25652kB is below limit 65536kB for oom_score_adj 12 Free memory is -13424kB above reserved lowmemorykiller: Killing 'syz-executor793' (3987) (tgid 3987), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4488) because cache 25452kB is below limit 65536kB for oom_score_adj 12 Free memory is -13376kB above reserved lowmemorykiller: Killing 'syz-executor793' (3990) (tgid 3990), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4488) because cache 25452kB is below limit 65536kB for oom_score_adj 12 Free memory is 4100kB above reserved lowmemorykiller: Killing 'syz-executor793' (4002) (tgid 4002), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4488) because cache 25652kB is below limit 65536kB for oom_score_adj 12 Free memory is 11100kB above reserved lowmemorykiller: Killing 'syz-executor793' (4029) (tgid 4029), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4497) because cache 25284kB is below limit 65536kB for oom_score_adj 12 Free memory is -13268kB above reserved lowmemorykiller: Killing 'syz-executor793' (4041) (tgid 4041), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4497) because cache 25284kB is below limit 65536kB for oom_score_adj 12 Free memory is -10208kB above reserved lowmemorykiller: Killing 'syz-executor793' (4044) (tgid 4044), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4497) because cache 25284kB is below limit 65536kB for oom_score_adj 12 Free memory is -2708kB above reserved lowmemorykiller: Killing 'syz-executor793' (4047) (tgid 4047), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4506) because cache 25100kB is below limit 65536kB for oom_score_adj 12 Free memory is -13392kB above reserved lowmemorykiller: Killing 'syz-executor793' (4050) (tgid 4050), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4506) because cache 25100kB is below limit 65536kB for oom_score_adj 12 Free memory is -11192kB above reserved lowmemorykiller: Killing 'syz-executor793' (4053) (tgid 4053), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4506) because cache 25100kB is below limit 65536kB for oom_score_adj 12 Free memory is -3192kB above reserved lowmemorykiller: Killing 'syz-executor793' (4056) (tgid 4056), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4515) because cache 24916kB is below limit 65536kB for oom_score_adj 12 Free memory is -13396kB above reserved lowmemorykiller: Killing 'syz-executor793' (4062) (tgid 4062), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4515) because cache 24916kB is below limit 65536kB for oom_score_adj 12 Free memory is -13396kB above reserved lowmemorykiller: Killing 'syz-executor793' (4066) (tgid 4066), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4515) because cache 24916kB is below limit 65536kB for oom_score_adj 12 Free memory is 6292kB above reserved lowmemorykiller: Killing 'syz-executor793' (4069) (tgid 4069), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24732kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved lowmemorykiller: Killing 'syz-executor793' (4072) (tgid 4072), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24732kB is below limit 65536kB for oom_score_adj 12 Free memory is -10924kB above reserved lowmemorykiller: Killing 'syz-executor793' (4075) (tgid 4075), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24732kB is below limit 65536kB for oom_score_adj 12 Free memory is -4924kB above reserved lowmemorykiller: Killing 'syz-executor793' (4078) (tgid 4078), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24732kB is below limit 65536kB for oom_score_adj 12 Free memory is -524kB above reserved lowmemorykiller: Killing 'syz-executor793' (4081) (tgid 4081), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24632kB is below limit 65536kB for oom_score_adj 12 Free memory is 6676kB above reserved lowmemorykiller: Killing 'syz-executor793' (4084) (tgid 4084), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24632kB is below limit 65536kB for oom_score_adj 12 Free memory is 6552kB above reserved lowmemorykiller: Killing 'syz-executor793' (4087) (tgid 4087), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24532kB is below limit 65536kB for oom_score_adj 12 Free memory is 10352kB above reserved lowmemorykiller: Killing 'syz-executor793' (4090) (tgid 4090), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4524) because cache 24532kB is below limit 65536kB for oom_score_adj 12 Free memory is 27836kB above reserved lowmemorykiller: Killing 'syz-executor793' (4093) (tgid 4093), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4548) because cache 24648kB is below limit 65536kB for oom_score_adj 12 Free memory is -13244kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 4548, name: syz-executor793 INFO: lockdep is turned off. Preemption disabled at: [<00000000892b4196>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000892b4196>] task_lock include/linux/sched.h:3217 [inline] [<00000000892b4196>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 4548 Comm: syz-executor793 Tainted: G W 4.9.180+ #3 ffff880049297018 ffffffff81b577f1 0000000000000000 0000000000000001 ffff88004925df00 ffffffff810d0c30 ffff88004925df00 ffff880049297050 ffffffff8140008c ffff88004925df00 ffffffff82a39900 0000000000000387 Call Trace: [<00000000e5b6a96c>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000e5b6a96c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003346df05>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000f46d27a6>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000006f5d4197>] mmput+0x28/0x370 kernel/fork.c:903 [<00000000131b3afa>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000e6a14188>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<000000002e0e5d25>] do_shrink_slab mm/vmscan.c:399 [inline] [<000000002e0e5d25>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006d0a03e1>] shrink_slab mm/vmscan.c:466 [inline] [<000000006d0a03e1>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000a28d8827>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000a28d8827>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000a28d8827>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000002b016e87>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000002b016e87>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000002b016e87>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000002b016e87>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000bead42d7>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000bead42d7>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000bead42d7>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000bead42d7>] shmem_alloc_page mm/shmem.c:1437 [inline] [<00000000bead42d7>] shmem_alloc_and_acct_page mm/shmem.c:1462 [inline] [<00000000bead42d7>] shmem_getpage_gfp+0x3f3/0x1b00 mm/shmem.c:1734 [<0000000024cb10e4>] shmem_fault+0x216/0x6b0 mm/shmem.c:1966 [<000000004a20a813>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000093f2f5e1>] do_read_fault mm/memory.c:3202 [inline] [<0000000093f2f5e1>] do_fault mm/memory.c:3338 [inline] [<0000000093f2f5e1>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000093f2f5e1>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000093f2f5e1>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000fc967581>] faultin_page mm/gup.c:386 [inline] [<00000000fc967581>] __get_user_pages+0x3c7/0x1060 mm/gup.c:588 [<00000000a6165207>] populate_vma_page_range+0x19a/0x230 mm/gup.c:1106 [<00000000e0cd2216>] __mm_populate+0x1b9/0x300 mm/gup.c:1154 [<000000006cbba76f>] mm_populate include/linux/mm.h:2052 [inline] [<000000006cbba76f>] vm_mmap_pgoff+0x1aa/0x1c0 mm/util.c:333 [<00000000c88c9c6b>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline] [<00000000c88c9c6b>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513 [<000000002860673d>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline] [<000000002860673d>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87 [<000000003163f750>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000dfcb97ec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor793' (4096) (tgid 4096), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4551) because cache 24380kB is below limit 65536kB for oom_score_adj 12 Free memory is -13320kB above reserved lowmemorykiller: Killing 'syz-executor793' (4099) (tgid 4099), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4551) because cache 24380kB is below limit 65536kB for oom_score_adj 12 Free memory is -11120kB above reserved lowmemorykiller: Killing 'syz-executor793' (4102) (tgid 4102), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4551) because cache 24380kB is below limit 65536kB for oom_score_adj 12 Free memory is 280kB above reserved lowmemorykiller: Killing 'syz-executor793' (4105) (tgid 4105), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4551) because cache 24380kB is below limit 65536kB for oom_score_adj 12 Free memory is 4580kB above reserved lowmemorykiller: Killing 'syz-executor793' (4108) (tgid 4108), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4551) because cache 24180kB is below limit 65536kB for oom_score_adj 12 Free memory is 8980kB above reserved lowmemorykiller: Killing 'syz-executor793' (4111) (tgid 4111), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4551) because cache 24224kB is below limit 65536kB for oom_score_adj 12 Free memory is 31844kB above reserved lowmemorykiller: Killing 'syz-executor793' (4114) (tgid 4114), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4569) because cache 24224kB is below limit 65536kB for oom_score_adj 12 Free memory is -13300kB above reserved lowmemorykiller: Killing 'syz-executor793' (4117) (tgid 4117), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4569) because cache 24224kB is below limit 65536kB for oom_score_adj 12 Free memory is -10600kB above reserved lowmemorykiller: Killing 'syz-executor793' (4120) (tgid 4120), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4569) because cache 24224kB is below limit 65536kB for oom_score_adj 12 Free memory is -5500kB above reserved lowmemorykiller: Killing 'syz-executor793' (4123) (tgid 4123), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4578) because cache 24056kB is below limit 65536kB for oom_score_adj 12 Free memory is -13360kB above reserved lowmemorykiller: Killing 'syz-executor793' (4126) (tgid 4126), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4578) because cache 23856kB is below limit 65536kB for oom_score_adj 12 Free memory is -13332kB above reserved lowmemorykiller: Killing 'syz-executor793' (4129) (tgid 4129), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4578) because cache 23856kB is below limit 65536kB for oom_score_adj 12 Free memory is -13232kB above reserved lowmemorykiller: Killing 'syz-executor793' (4132) (tgid 4132), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4578) because cache 23956kB is below limit 65536kB for oom_score_adj 12 Free memory is 820kB above reserved lowmemorykiller: Killing 'syz-executor793' (4135) (tgid 4135), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4578) because cache 23956kB is below limit 65536kB for oom_score_adj 12 Free memory is 1720kB above reserved lowmemorykiller: Killing 'syz-executor793' (4138) (tgid 4138), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4593) because cache 23720kB is below limit 65536kB for oom_score_adj 12 Free memory is -13336kB above reserved lowmemorykiller: Killing 'syz-executor793' (4141) (tgid 4141), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4593) because cache 23720kB is below limit 65536kB for oom_score_adj 12 Free memory is -3736kB above reserved lowmemorykiller: Killing 'syz-executor793' (4144) (tgid 4144), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4593) because cache 23720kB is below limit 65536kB for oom_score_adj 12 Free memory is 1264kB above reserved lowmemorykiller: Killing 'syz-executor793' (4147) (tgid 4147), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4602) because cache 23552kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved lowmemorykiller: Killing 'syz-executor793' (4150) (tgid 4150), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4608) because cache 23452kB is below limit 65536kB for oom_score_adj 12 Free memory is -13304kB above reserved lowmemorykiller: Killing 'syz-executor793' (4153) (tgid 4153), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4608) because cache 23252kB is below limit 65536kB for oom_score_adj 12 Free memory is -13452kB above reserved lowmemorykiller: Killing 'syz-executor793' (4156) (tgid 4156), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4608) because cache 23252kB is below limit 65536kB for oom_score_adj 12 Free memory is 2108kB above reserved lowmemorykiller: Killing 'syz-executor793' (4159) (tgid 4159), adj 1000, to free 12172kB on behalf of 'syz-executor793' (4608) because cache 23252kB is below limit 65536kB for oom_score_adj 12 Free memory is 11620kB above reserved lowmemorykiller: Killing 'syz-executor793' (4162) (tgid 4162), adj 1000,