lowmemorykiller: Killing 'syz-executor444' (26767) (tgid 26767), adj 1000,
   to free 4020kB on behalf of 'kswapd0' (33) because
   cache 1436kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13344kB above reserved
INFO: rcu_preempt detected stalls on CPUs/tasks:
	Tasks blocked on level-0 rcu_node (CPUs 0-1): P2127
	(detected by 1, t=10502 jiffies, g=1546, c=1545, q=55401)
syz-executor444 R  running task    26312  2127   2125 0x20020000
 ffff8801cdeddf00 ffff8801cce42680 ffff8801cce44d00 ffff8801cded8000
 ffff8801db721018 ffff8801cbe7f238 ffffffff828075c2 ffffffff81b6e700
 ffffffff00000020 ffff880100000020 01ff8801cbe7f268 ffff8801db7218f0
Call Trace:
 [<ffffffff828094fb>] preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:3711
 [<ffffffff82818214>] retint_kernel+0x1b/0x2d
 [<ffffffff812270c8>] vprintk_emit+0x448/0x790 kernel/printk/printk.c:1908
 [<ffffffff81227438>] vprintk+0x28/0x30 kernel/printk/printk.c:1918
 [<ffffffff8122745d>] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1919
 [<ffffffff81402f9f>] vprintk_func kernel/printk/internal.h:36 [inline]
 [<ffffffff81402f9f>] printk+0xaf/0xd7 kernel/printk/printk.c:1980
 [<ffffffff8222d9e8>] lowmem_scan.cold.1+0x1f9/0x35b drivers/staging/android/lowmemorykiller.c:177
 [<ffffffff81449cc6>] do_shrink_slab mm/vmscan.c:398 [inline]
 [<ffffffff81449cc6>] shrink_slab.part.8+0x3c6/0xa00 mm/vmscan.c:501
 [<ffffffff814557fd>] shrink_slab mm/vmscan.c:465 [inline]
 [<ffffffff814557fd>] shrink_node+0x1ed/0x740 mm/vmscan.c:2602
 [<ffffffff814560c7>] shrink_zones mm/vmscan.c:2749 [inline]
 [<ffffffff814560c7>] do_try_to_free_pages mm/vmscan.c:2791 [inline]
 [<ffffffff814560c7>] try_to_free_pages+0x377/0xb80 mm/vmscan.c:3002
 [<ffffffff81428a01>] __perform_reclaim mm/page_alloc.c:3324 [inline]
 [<ffffffff81428a01>] __alloc_pages_direct_reclaim mm/page_alloc.c:3345 [inline]
 [<ffffffff81428a01>] __alloc_pages_slowpath mm/page_alloc.c:3697 [inline]
 [<ffffffff81428a01>] __alloc_pages_nodemask+0x981/0x1bd0 mm/page_alloc.c:3862
 [<ffffffff814eb7e7>] __alloc_pages include/linux/gfp.h:433 [inline]
 [<ffffffff814eb7e7>] __alloc_pages_node include/linux/gfp.h:446 [inline]
 [<ffffffff814eb7e7>] alloc_slab_page mm/slub.c:1408 [inline]
 [<ffffffff814eb7e7>] allocate_slab mm/slub.c:1557 [inline]
 [<ffffffff814eb7e7>] new_slab+0x367/0x3d0 mm/slub.c:1635
 [<ffffffff814ed97d>] new_slab_objects mm/slub.c:2419 [inline]
 [<ffffffff814ed97d>] ___slab_alloc.constprop.33+0x2ed/0x470 mm/slub.c:2576
 [<ffffffff814edb50>] __slab_alloc.isra.25.constprop.32+0x50/0xa0 mm/slub.c:2618
 [<ffffffff814eddb2>] slab_alloc_node mm/slub.c:2681 [inline]
 [<ffffffff814eddb2>] slab_alloc mm/slub.c:2723 [inline]
 [<ffffffff814eddb2>] kmem_cache_alloc+0x212/0x2b0 mm/slub.c:2728
 [<ffffffff8153eca8>] getname_flags+0xc8/0x550 fs/namei.c:137
 [<ffffffff81541358>] getname fs/namei.c:208 [inline]
 [<ffffffff81541358>] user_path_mountpoint_at+0x28/0x70 fs/namei.c:2747
 [<ffffffff8157752d>] SYSC_umount fs/namespace.c:1722 [inline]
 [<ffffffff8157752d>] SyS_umount+0x13d/0xcf0 fs/namespace.c:1706
 [<ffffffff81006311>] do_syscall_32_irqs_on arch/x86/entry/common.c:328 [inline]
 [<ffffffff81006311>] do_fast_syscall_32+0x2f1/0xa10 arch/x86/entry/common.c:390
 [<ffffffff82818de0>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137
syz-executor444 R  running task    26312  2127   2125 0x20020000
 ffff8801cdeddf00 ffff8801cce42680 ffff8801cce44d00 ffff8801cded8000
 ffff8801db721018 ffff8801cbe7f238 ffffffff828075c2 ffffffff81b6e700
 ffffffff00000020 ffff880100000020 01ff8801cbe7f268 ffff8801db7218f0
Call Trace:
 [<ffffffff828094fb>] preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:3711
 [<ffffffff82818214>] retint_kernel+0x1b/0x2d
 [<ffffffff812270c8>] vprintk_emit+0x448/0x790 kernel/printk/printk.c:1908
 [<ffffffff81227438>] vprintk+0x28/0x30 kernel/printk/printk.c:1918
 [<ffffffff8122745d>] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1919
 [<ffffffff81402f9f>] vprintk_func kernel/printk/internal.h:36 [inline]
 [<ffffffff81402f9f>] printk+0xaf/0xd7 kernel/printk/printk.c:1980
 [<ffffffff8222d9e8>] lowmem_scan.cold.1+0x1f9/0x35b drivers/staging/android/lowmemorykiller.c:177
 [<ffffffff81449cc6>] do_shrink_slab mm/vmscan.c:398 [inline]
 [<ffffffff81449cc6>] shrink_slab.part.8+0x3c6/0xa00 mm/vmscan.c:501
 [<ffffffff814557fd>] shrink_slab mm/vmscan.c:465 [inline]
 [<ffffffff814557fd>] shrink_node+0x1ed/0x740 mm/vmscan.c:2602
 [<ffffffff814560c7>] shrink_zones mm/vmscan.c:2749 [inline]
 [<ffffffff814560c7>] do_try_to_free_pages mm/vmscan.c:2791 [inline]
 [<ffffffff814560c7>] try_to_free_pages+0x377/0xb80 mm/vmscan.c:3002
 [<ffffffff81428a01>] __perform_reclaim mm/page_alloc.c:3324 [inline]
 [<ffffffff81428a01>] __alloc_pages_direct_reclaim mm/page_alloc.c:3345 [inline]
 [<ffffffff81428a01>] __alloc_pages_slowpath mm/page_alloc.c:3697 [inline]
 [<ffffffff81428a01>] __alloc_pages_nodemask+0x981/0x1bd0 mm/page_alloc.c:3862
 [<ffffffff814eb7e7>] __alloc_pages include/linux/gfp.h:433 [inline]
 [<ffffffff814eb7e7>] __alloc_pages_node include/linux/gfp.h:446 [inline]
 [<ffffffff814eb7e7>] alloc_slab_page mm/slub.c:1408 [inline]
 [<ffffffff814eb7e7>] allocate_slab mm/slub.c:1557 [inline]
 [<ffffffff814eb7e7>] new_slab+0x367/0x3d0 mm/slub.c:1635
 [<ffffffff814ed97d>] new_slab_objects mm/slub.c:2419 [inline]
 [<ffffffff814ed97d>] ___slab_alloc.constprop.33+0x2ed/0x470 mm/slub.c:2576
 [<ffffffff814edb50>] __slab_alloc.isra.25.constprop.32+0x50/0xa0 mm/slub.c:2618
 [<ffffffff814eddb2>] slab_alloc_node mm/slub.c:2681 [inline]
 [<ffffffff814eddb2>] slab_alloc mm/slub.c:2723 [inline]
 [<ffffffff814eddb2>] kmem_cache_alloc+0x212/0x2b0 mm/slub.c:2728
 [<ffffffff8153eca8>] getname_flags+0xc8/0x550 fs/namei.c:137
 [<ffffffff81541358>] getname fs/namei.c:208 [inline]
 [<ffffffff81541358>] user_path_mountpoint_at+0x28/0x70 fs/namei.c:2747
 [<ffffffff8157752d>] SYSC_umount fs/namespace.c:1722 [inline]
 [<ffffffff8157752d>] SyS_umount+0x13d/0xcf0 fs/namespace.c:1706
 [<ffffffff81006311>] do_syscall_32_irqs_on arch/x86/entry/common.c:328 [inline]
 [<ffffffff81006311>] do_fast_syscall_32+0x2f1/0xa10 arch/x86/entry/common.c:390
 [<ffffffff82818de0>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26769) because
   cache 1436kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13344kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26764) (tgid 26764), adj 1000,
   to free 2680kB on behalf of 'kswapd0' (33) because
   cache 1436kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13344kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26785) (tgid 26785), adj 1000,
   to free 2752kB on behalf of 'syz-executor444' (2128) because
   cache 1740kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13328kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26779) (tgid 26779), adj 1000,
   to free 3344kB on behalf of 'syz-executor444' (2129) because
   cache 1740kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13328kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26790) because
   cache 1720kB is below limit 6144kB for oom_score_adj 0
   Free memory is -9840kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2129) because
   cache 1720kB is below limit 6144kB for oom_score_adj 0
   Free memory is -9840kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2129) because
   cache 1872kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13372kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'init' (1) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13340kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26775) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13340kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'cron' (1956) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13340kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2128) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13340kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'kswapd0' (33) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13340kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26788) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13340kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26790) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13340kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'init' (1) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26788) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2130) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'kswapd0' (33) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26805) because
   cache 1860kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26805) because
   cache 1780kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'init' (1) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'kswapd0' (33) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26788) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2126) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2129) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26805) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'kworker/u4:1' (64) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'cron' (1956) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2126) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (2129) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved
lowmemorykiller: Killing 'syz-executor444' (26775) (tgid 26774), adj 1000,
   to free 2436kB on behalf of 'syz-executor444' (26775) because
   cache 1768kB is below limit 6144kB for oom_score_adj 0
   Free memory is -13308kB above reserved