RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c
R13: 00007ffe859f563f R14: 00007fb5cb2c39c0 R15: 0000000000000000
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.20.0-rc1-next-20181109+ #110
rcu: INFO: rcu_preempt self-detected stall on CPU
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
rcu: 	0-....: (1 GPs behind) idle=1fe/1/0x4000000000000004 softirq=19933/19934 fqs=7 
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
 __alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x114/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
rcu: 	 (t=10706 jiffies g=26565 q=15)
rcu: rcu_preempt kthread starved for 3322 jiffies! g26565 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    22464    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2831 [inline]
 __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
 schedule+0xef/0x370 kernel/sched/core.c:3516
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1948
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x440 kernel/kthread.c:246
 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2105
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:145353 inactive_anon:195 isolated_anon:0
 active_file:10 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8540 slab_unreclaimable:1360680
 mapped:49154 shmem:255 pagetables:1353 bounce:0
 free:13766 free_pcp:87 free_cma:0
Node 0 active_anon:581412kB inactive_anon:780kB active_file:40kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1020kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 544768kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13968kB min:37364kB low:46704kB high:56044kB active_anon:581412kB inactive_anon:780kB active_file:40kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:7680kB pagetables:5412kB bounce:0kB free_pcp:348kB local_pcp:216kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (M) 3*32kB (UM) 3*64kB (M) 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
Node 0 Normal: 834*4kB (UME) 431*8kB (UME) 227*16kB (UME) 50*32kB (UME) 1*64kB (U) 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 0*2048kB 0*4096kB = 14000kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
280 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.20.0-rc1-next-20181109+ #110
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
NMI backtrace for cpu 0
 __alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x114/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
CPU: 0 PID: 8900 Comm: syz-executor5 Not tainted 4.20.0-rc1-next-20181109+ #110
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0
 nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1e8/0x22a lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline]
 rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1211
 print_cpu_stall.cold.70+0x218/0x40a kernel/rcu/tree.c:1348
 check_cpu_stall kernel/rcu/tree.c:1422 [inline]
 rcu_pending kernel/rcu/tree.c:3018 [inline]
 rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2521
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x412/0x10c0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline]
RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642
Code: 3f 7e 0f 85 32 ff ff ff e8 d5 f4 3d ff e9 28 ff ff ff e8 4c 48 c3 ff 48 83 3d 44 73 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 b9
RSP: 0000:ffff8801dae073d8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10037596da6
RDX: 0000000000000000 RSI: ffff8801bacb6d38 RDI: 0000000000000282
RBP: ffff8801dae07448 R08: ffff8801bacb6d30 R09: 0000000000000002
R10: 0000000000000000 R11: ffff8801bacb6440 R12: ffff8801d9a1c0c0
R13: ffff8801d9a1c0c0 R14: 0000000000000000 R15: 0000000000000282
 __alloc_skb+0x114/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:count_memcg_events include/linux/memcontrol.h:742 [inline]
RIP: 0010:count_memcg_page_event include/linux/memcontrol.h:749 [inline]
RIP: 0010:shrink_page_list+0x7e92/0xccd0 mm/vmscan.c:1491
Code: 48 c1 e8 03 80 3c 18 00 0f 85 0d 26 00 00 48 83 3d 82 ae a9 07 00 0f 84 b2 12 00 00 e8 77 5b d7 ff 48 8b bd e8 dc ff ff 57 9d <0f> 1f 44 00 00 e9 27 b8 ff ff e8 5f 5b d7 ff 49 8d 45 ff 48 89 85
RSP: 0000:ffff880180e3a0d8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bacb6440 RBX: dffffc0000000000 RCX: 1ffff10037596da1
RDX: 0000000000000000 RSI: ffffffff81a84d39 RDI: 0000000000000293
RBP: ffff880180e3c478 R08: ffff8801bacb6d08 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801bacb6440 R12: ffff880180e3c450
R13: 0000000000000200 R14: ffffea00061741c8 R15: 000000000000000b
 shrink_inactive_list+0x9af/0x1c50 mm/vmscan.c:1964
 shrink_list mm/vmscan.c:2276 [inline]
 shrink_node_memcg+0x784/0x18d0 mm/vmscan.c:2541
 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2756
 shrink_zones mm/vmscan.c:2988 [inline]
 do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3050
 try_to_free_pages+0x4cb/0xb90 mm/vmscan.c:3265
 __perform_reclaim mm/page_alloc.c:3769 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3791 [inline]
 __alloc_pages_slowpath+0xa14/0x2e30 mm/page_alloc.c:4192
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x3ce/0x570 mm/filemap.c:924
 pagecache_get_page+0x396/0xf00 mm/filemap.c:1554
 find_or_create_page include/linux/pagemap.h:322 [inline]
 ext4_mb_load_buddy_gfp+0xddf/0x1e70 fs/ext4/mballoc.c:1158
 ext4_free_blocks+0xbc4/0x3500 fs/ext4/mballoc.c:4856
 ext4_remove_blocks fs/ext4/extents.c:2615 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2768 [inline]
 ext4_ext_remove_space+0x2536/0x5ad0 fs/ext4/extents.c:3010
 ext4_ext_truncate+0x1cc/0x220 fs/ext4/extents.c:4543
 ext4_truncate+0xe41/0x1650 fs/ext4/inode.c:4533
 ext4_evict_inode+0xab6/0x1ad0 fs/ext4/inode.c:289
 evict+0x4b9/0x980 fs/inode.c:558
 iput_final fs/inode.c:1550 [inline]
 iput+0x674/0xa90 fs/inode.c:1576
 dentry_unlink_inode+0x461/0x5e0 fs/dcache.c:360
 __dentry_kill+0x44c/0x7a0 fs/dcache.c:552
 dentry_kill+0xc9/0x680 fs/dcache.c:671
 dput.part.25+0x660/0x860 fs/dcache.c:832
 dput+0x15/0x20 fs/dcache.c:814
 path_put+0x31/0x70 fs/namei.c:484
 free_fs_struct+0x22/0x60 fs/fs_struct.c:90
 exit_fs+0xf3/0x130 fs/fs_struct.c:107
 do_exit+0xec4/0x2620 kernel/exit.c:863
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8a8/0x1970 kernel/signal.c:2517
 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: Bad RIP value.
RSP: 002b:00007fb5cb2c2cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457569
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c
R13: 00007ffe859f563f R14: 00007fb5cb2c39c0 R15: 0000000000000000
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.20.0-rc1-next-20181109+ #110
aoe: skb alloc failure
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor5 cpuset=syz5 mems_allowed=0
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
 __alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x114/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 8900 Comm: syz-executor5 Not tainted 4.20.0-rc1-next-20181109+ #110
Mem-Info:
active_anon:145353 inactive_anon:195 isolated_anon:0
 active_file:10 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8540 slab_unreclaimable:1360680
 mapped:49154 shmem:255 pagetables:1353 bounce:0
 free:13766 free_pcp:87 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:581412kB inactive_anon:780kB active_file:40kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1020kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 544768kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 <IRQ>
lowmem_reserve[]: 0 2818 6321 6321
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
Node 0 Normal free:13968kB min:37364kB low:46704kB high:56044kB active_anon:581412kB inactive_anon:780kB active_file:40kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:7680kB pagetables:5412kB bounce:0kB free_pcp:348kB local_pcp:216kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (M) 3*32kB (UM) 3*64kB (M) 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
Node 0 Normal: 834*4kB (UME) 431*8kB (UME) 227*16kB (UME) 50*32kB (UME) 1*64kB (U) 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 0*2048kB 0*4096kB = 14000kB
 __alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
280 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x114/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:count_memcg_events include/linux/memcontrol.h:742 [inline]
RIP: 0010:count_memcg_page_event include/linux/memcontrol.h:749 [inline]
RIP: 0010:shrink_page_list+0x7e92/0xccd0 mm/vmscan.c:1491
Code: 48 c1 e8 03 80 3c 18 00 0f 85 0d 26 00 00 48 83 3d 82 ae a9 07 00 0f 84 b2 12 00 00 e8 77 5b d7 ff 48 8b bd e8 dc ff ff 57 9d <0f> 1f 44 00 00 e9 27 b8 ff ff e8 5f 5b d7 ff 49 8d 45 ff 48 89 85
RSP: 0000:ffff880180e3a0d8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bacb6440 RBX: dffffc0000000000 RCX: 1ffff10037596da1
RDX: 0000000000000000 RSI: ffffffff81a84d39 RDI: 0000000000000293
RBP: ffff880180e3c478 R08: ffff8801bacb6d08 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801bacb6440 R12: ffff880180e3c450
R13: 0000000000000200 R14: ffffea00061741c8 R15: 000000000000000b
 shrink_inactive_list+0x9af/0x1c50 mm/vmscan.c:1964
 shrink_list mm/vmscan.c:2276 [inline]
 shrink_node_memcg+0x784/0x18d0 mm/vmscan.c:2541
 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2756
 shrink_zones mm/vmscan.c:2988 [inline]
 do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3050
 try_to_free_pages+0x4cb/0xb90 mm/vmscan.c:3265
 __perform_reclaim mm/page_alloc.c:3769 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3791 [inline]
 __alloc_pages_slowpath+0xa14/0x2e30 mm/page_alloc.c:4192
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x3ce/0x570 mm/filemap.c:924
 pagecache_get_page+0x396/0xf00 mm/filemap.c:1554
 find_or_create_page include/linux/pagemap.h:322 [inline]
 ext4_mb_load_buddy_gfp+0xddf/0x1e70 fs/ext4/mballoc.c:1158
 ext4_free_blocks+0xbc4/0x3500 fs/ext4/mballoc.c:4856
 ext4_remove_blocks fs/ext4/extents.c:2615 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2768 [inline]
 ext4_ext_remove_space+0x2536/0x5ad0 fs/ext4/extents.c:3010
 ext4_ext_truncate+0x1cc/0x220 fs/ext4/extents.c:4543
 ext4_truncate+0xe41/0x1650 fs/ext4/inode.c:4533
 ext4_evict_inode+0xab6/0x1ad0 fs/ext4/inode.c:289
 evict+0x4b9/0x980 fs/inode.c:558
 iput_final fs/inode.c:1550 [inline]
 iput+0x674/0xa90 fs/inode.c:1576
 dentry_unlink_inode+0x461/0x5e0 fs/dcache.c:360
 __dentry_kill+0x44c/0x7a0 fs/dcache.c:552
 dentry_kill+0xc9/0x680 fs/dcache.c:671
 dput.part.25+0x660/0x860 fs/dcache.c:832
 dput+0x15/0x20 fs/dcache.c:814
 path_put+0x31/0x70 fs/namei.c:484
 free_fs_struct+0x22/0x60 fs/fs_struct.c:90
 exit_fs+0xf3/0x130 fs/fs_struct.c:107
 do_exit+0xec4/0x2620 kernel/exit.c:863
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8a8/0x1970 kernel/signal.c:2517
 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: Bad RIP value.
RSP: 002b:00007fb5cb2c2cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000072bf08 RCX: 0000000000457569
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf08
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000072bf0c
R13: 00007ffe859f563f R14: 00007fb5cb2c39c0 R15: 0000000000000000
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.20.0-rc1-next-20181109+ #110
aoe: skb alloc failure
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor5 cpuset=syz5 mems_allowed=0
 __alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x114/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 8900 Comm: syz-executor5 Not tainted 4.20.0-rc1-next-20181109+ #110
Mem-Info:
active_anon:145353 inactive_anon:195 isolated_anon:0
 active_file:10 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8540 slab_unreclaimable:1360680
 mapped:49154 shmem:255 pagetables:1353 bounce:0
 free:13766 free_pcp:87 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:581412kB inactive_anon:780kB active_file:40kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1020kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 544768kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13968kB min:37364kB low:46704kB high:56044kB active_anon:581412kB inactive_anon:780kB active_file:40kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:7680kB pagetables:5412kB bounce:0kB free_pcp:348kB local_pcp:216kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (M) 3*32kB (UM) 3*64kB (M) 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
 __alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
Node 0 Normal: 834*4kB (UME) 431*8kB (UME) 227*16kB (UME) 50*32kB (UME) 1*64kB (U) 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 0*2048kB 0*4096kB = 14000kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
280 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x114/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:count_memcg_events include/linux/memcontrol.h:742 [inline]
RIP: 0010:count_memcg_page_event include/linux/memcontrol.h:749 [inline]
RIP: 0010:shrink_page_list+0x7e92/0xccd0 mm/vmscan.c:1491
Code: 48 c1 e8 03 80 3c 18 00 0f 85 0d 26 00 00 48 83 3d 82 ae a9 07 00 0f 84 b2 12 00 00 e8 77 5b d7 ff 48 8b bd e8 dc ff ff 57 9d <0f> 1f 44 00 00 e9 27 b8 ff ff e8 5f 5b d7 ff 49 8d 45 ff 48 89 85
RSP: 0000:ffff880180e3a0d8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bacb6440 RBX: dffffc0000000000 RCX: 1ffff10037596da1
RDX: 0000000000000000 RSI: ffffffff81a84d39 RDI: 0000000000000293
RBP: ffff880180e3c478 R08: ffff8801bacb6d08 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801bacb6440 R12: ffff880180e3c450
R13: 0000000000000200 R14: ffffea00061741c8 R15: 000000000000000b
 shrink_inactive_list+0x9af/0x1c50 mm/vmscan.c:1964
 shrink_list mm/vmscan.c:2276 [inline]
 shrink_node_memcg+0x784/0x18d0 mm/vmscan.c:2541
 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2756
 shrink_zones mm/vmscan.c:2988 [inline]
 do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3050
 try_to_free_pages+0x4cb/0xb90 mm/vmscan.c:3265
 __perform_reclaim mm/page_alloc.c:3769 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3791 [inline]
 __alloc_pages_slowpath+0xa14/0x2e30 mm/page_alloc.c:4192
 __alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x3ce/0x570 mm/filemap.c:924
 pagecache_get_page+0x396/0xf00 mm/filemap.c:1554
 find_or_create_page include/linux/pagemap.h:322 [inline]
 ext4_mb_load_buddy_gfp+0xddf/0x1e70 fs/ext4/mballoc.c:1158
 ext4_free_blocks+0xbc4/0x3500 fs/ext4/mballoc.c:4856
 ext4_remove_blocks fs/ext4/extents.c:2615 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2768 [inline]
 ext4_ext_remove_space+0x2536/0x5ad0 fs/ext4/extents.c:3010
 ext4_ext_truncate+0x1cc/0x220 fs/ext4/extents.c:4543
 ext4_truncate+0xe41/0x1650 fs/ext4/inode.c:4533
 ext4_evict_inode+0xab6/0x1ad0 fs/ext4/inode.c:289