RDX: 0000000000000000 RSI: 00007ffc41166b70 RDI: 000000000000000b RBP: 00007ffc41166b70 R08: 00007ffc41166bf0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffc41166f50 R14: 0000000000000000 R15: 0000000000000000 CPU: 1 PID: 5543 Comm: kworker/1:2 Not tainted 4.19.0+ #135 rcu: INFO: rcu_preempt self-detected stall on CPU Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_power_efficient neigh_periodic_work Call Trace: rcu: 0-....: (1 GPs behind) idle=f4e/1/0x4000000000000004 softirq=38264/38265 fqs=8 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 rcu: (t=10738 jiffies g=53393 q=40) rcu: rcu_preempt kthread starved for 593 jiffies! g53393 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 22568 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474 schedule+0xfe/0x460 kernel/sched/core.c:3518 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934 __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+0x119/0x770 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+0x272/0x920 kernel/time/timer.c:1326 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 NMI backtrace for cpu 0 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1020 do_softirq.part.14+0x126/0x160 kernel/softirq.c:337 do_softirq kernel/softirq.c:329 [inline] __local_bh_enable_ip+0x21d/0x260 kernel/softirq.c:189 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:275 [inline] _raw_write_unlock_bh+0x30/0x40 kernel/locking/spinlock.c:344 neigh_periodic_work+0x6bd/0xc60 net/core/neighbour.c:871 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 1 Comm: init Not tainted 4.19.0+ #135 Mem-Info: active_anon:49306 inactive_anon:2084 isolated_anon:0 active_file:13 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9476 slab_unreclaimable:1469522 mapped:40979 shmem:2627 pagetables:637 bounce:0 free:13676 free_pcp:141 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:197224kB inactive_anon:8336kB active_file:52kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:10508kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 2818 6321 6321 nmi_cpu_backtrace.cold.1+0x5c/0xa1 lib/nmi_backtrace.c:101 Node 0 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 DMA32 free:24880kB 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:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:176kB local_pcp:0kB free_cma:0kB arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 lowmem_reserve[]: trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195 0 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334 0 3503 3503 Node 0 Normal free:13916kB min:37364kB low:46704kB high:56044kB active_anon:197224kB inactive_anon:8336kB active_file:52kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5344kB pagetables:2548kB bounce:0kB free_pcp:388kB local_pcp:380kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: check_cpu_stall kernel/rcu/tree.c:1408 [inline] rcu_pending kernel/rcu/tree.c:2961 [inline] rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2506 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: 4*4kB (M) 0*8kB 2*16kB (M) 2*32kB (UM) 3*64kB update_process_times+0x2d/0x70 kernel/time/timer.c:1636 (M) tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 6*128kB tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 (UMH) __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 5*256kB (UMH) 4*512kB (UM) 4*1024kB (UMH) 2*2048kB (M) 3*4096kB (M) = 24880kB Node 0 Normal: hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 1081*4kB 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 (UMEH) 519*8kB (UME) 198*16kB (UME) 53*32kB (UMEH) 1*64kB apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 (M) 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 0*128kB Code: 41 7e 0f 85 32 ff ff ff e8 55 f9 3f ff e9 28 ff ff ff e8 ac c3 c3 ff 48 83 3d 04 72 91 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 1a 90 0*256kB RSP: 0000:ffff8801dae073d8 EFLAGS: 00000286 1*512kB ORIG_RAX: ffffffffffffff13 (H) RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b34812b 0*1024kB RDX: 0000000000000000 RSI: ffff8801d9a40960 RDI: 0000000000000286 0*2048kB RBP: ffff8801dae07448 R08: ffff8801d9a40958 R09: 0000000000000002 0*4096kB R10: 0000000000000000 R11: ffff8801d9a40040 R12: ffff8801d9bd2c80 = 13916kB R13: ffff8801d9bd2c80 R14: 0000000000000000 R15: 0000000000000286 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 2654 total pagecache pages __alloc_skb+0x119/0x770 net/core/skbuff.c:193 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 342867 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb 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 kworker/1:2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) kworker/1:2 cpuset= / mems_allowed=0 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 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:801 RIP: 0010:shrink_page_list+0x79f/0xccd0 mm/vmscan.c:1102 Code: f2 f2 c7 80 f8 02 00 00 f2 f2 f2 f2 c7 80 fc 02 00 00 00 f2 f2 f2 c7 80 00 03 00 00 f2 f2 f2 f2 c7 80 04 03 00 00 00 f2 f2 f2 80 08 03 00 00 f2 f2 f2 f2 c7 80 0c 03 00 00 00 f2 f2 f2 c7 80 RSP: 0000:ffff8801d9a4bcd8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffffed003b3497b6 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff8801d9a4e930 RSI: ffff88021fffa000 RDI: ffff8801d9a4e158 RBP: ffff8801d9a4e078 R08: ffff8801d9a4e198 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8801d9a40040 R12: ffff8801d9a4e050 R13: ffff8801d9a4e258 R14: 0000000000000001 R15: ffff8801d9a4e930 shrink_inactive_list+0x77b/0x1c60 mm/vmscan.c:1953 shrink_list mm/vmscan.c:2264 [inline] shrink_node_memcg+0x78b/0x18f0 mm/vmscan.c:2527 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2742 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x7f4c2eec5dd3 Code: Bad RIP value. RSP: 002b:00007ffc41166818 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007ffc411669c0 RCX: 00007f4c2eec5dd3 RDX: 0000000000000000 RSI: 00007ffc41166b70 RDI: 000000000000000b RBP: 00007ffc41166b70 R08: 00007ffc41166bf0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffc41166f50 R14: 0000000000000000 R15: 0000000000000000 CPU: 1 PID: 5543 Comm: kworker/1:2 Not tainted 4.19.0+ #135 aoe: skb alloc failure Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_power_efficient neigh_periodic_work init: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) init cpuset= Call Trace: / mems_allowed=0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __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+0x119/0x770 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+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1020 do_softirq.part.14+0x126/0x160 kernel/softirq.c:337 do_softirq kernel/softirq.c:329 [inline] __local_bh_enable_ip+0x21d/0x260 kernel/softirq.c:189 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:275 [inline] _raw_write_unlock_bh+0x30/0x40 kernel/locking/spinlock.c:344 neigh_periodic_work+0x6bd/0xc60 net/core/neighbour.c:871 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 CPU: 0 PID: 1 Comm: init Not tainted 4.19.0+ #135 Mem-Info: active_anon:49306 inactive_anon:2084 isolated_anon:0 active_file:13 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9476 slab_unreclaimable:1469522 mapped:40979 shmem:2627 pagetables:637 bounce:0 free:13676 free_pcp:141 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:197224kB inactive_anon:8336kB active_file:52kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:10508kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 2818 6321 6321 Node 0 DMA32 free:24880kB 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:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:176kB local_pcp:0kB free_cma:0kB __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13916kB min:37364kB low:46704kB high:56044kB active_anon:197224kB inactive_anon:8336kB active_file:52kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5344kB pagetables:2548kB bounce:0kB free_pcp:388kB local_pcp:380kB 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB __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 (M) = 15908kB fallback_alloc+0x204/0x2e0 mm/slab.c:3219 Node 0 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 DMA32: slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 4*4kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 0*8kB 2*16kB (M) 2*32kB (UM) 3*64kB (M) 6*128kB (UMH) alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 5*256kB aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381 (UMH) 4*512kB (UM) 4*1024kB (UMH) discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 2*2048kB (M) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 3*4096kB (M) = 24880kB Node 0 Normal: 1081*4kB (UMEH) 519*8kB (UME) 198*16kB (UME) 53*32kB (UMEH) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 1*64kB (M) 0*128kB 0*256kB 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13916kB 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 2654 total pagecache pages run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 __do_softirq+0x308/0xb7e kernel/softirq.c:292 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342867 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb 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:801 RIP: 0010:shrink_page_list+0x79f/0xccd0 mm/vmscan.c:1102 Code: f2 f2 c7 80 f8 02 00 00 f2 f2 f2 f2 c7 80 fc 02 00 00 00 f2 f2 f2 c7 80 00 03 00 00 f2 f2 f2 f2 c7 80 04 03 00 00 00 f2 f2 f2 80 08 03 00 00 f2 f2 f2 f2 c7 80 0c 03 00 00 00 f2 f2 f2 c7 80 RSP: 0000:ffff8801d9a4bcd8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffffed003b3497b6 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff8801d9a4e930 RSI: ffff88021fffa000 RDI: ffff8801d9a4e158 RBP: ffff8801d9a4e078 R08: ffff8801d9a4e198 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8801d9a40040 R12: ffff8801d9a4e050 R13: ffff8801d9a4e258 R14: 0000000000000001 R15: ffff8801d9a4e930 shrink_inactive_list+0x77b/0x1c60 mm/vmscan.c:1953 shrink_list mm/vmscan.c:2264 [inline] shrink_node_memcg+0x78b/0x18f0 mm/vmscan.c:2527 syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor4 cpuset=syz4 mems_allowed=0 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2742 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x7f4c2eec5dd3 Code: Bad RIP value. RSP: 002b:00007ffc41166818 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007ffc411669c0 RCX: 00007f4c2eec5dd3 RDX: 0000000000000000 RSI: 00007ffc41166b70 RDI: 000000000000000b RBP: 00007ffc41166b70 R08: 00007ffc41166bf0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffc41166f50 R14: 0000000000000000 R15: 0000000000000000 CPU: 1 PID: 22713 Comm: syz-executor4 Not tainted 4.19.0+ #135 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 init: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 init cpuset= / mems_allowed=0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __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 __do_cache_alloc mm/slab.c:3356 [inline] slab_alloc mm/slab.c:3384 [inline] kmem_cache_alloc+0x1f8/0x730 mm/slab.c:3552 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2080 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067 bpf_prog_bebbfe2050753572+0x283/0x1000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 1 Comm: init Not tainted 4.19.0+ #135 Mem-Info: active_anon:49306 inactive_anon:2084 isolated_anon:0 active_file:13 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9476 slab_unreclaimable:1469522 mapped:40979 shmem:2627 pagetables:637 bounce:0 free:13676 free_pcp:141 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:197224kB inactive_anon:8336kB active_file:52kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:10508kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 2818 6321 6321 Node 0 DMA32 free:24880kB 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:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:176kB local_pcp:0kB free_cma:0kB __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13916kB min:37364kB low:46704kB high:56044kB active_anon:197224kB inactive_anon:8336kB active_file:52kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5344kB pagetables:2548kB bounce:0kB free_pcp:388kB local_pcp:380kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: __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 4*4kB (M) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 0*8kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 2*16kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 2*32kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 3*64kB (M) 6*128kB (UMH) 5*256kB (UMH) 4*512kB (UM) 4*1024kB (UMH) alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 2*2048kB aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381 (M) 3*4096kB (M) = 24880kB Node 0 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 Normal: call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 1081*4kB (UMEH) 519*8kB (UME) 198*16kB (UME) 53*32kB (UMEH) 1*64kB (M) 0*128kB 0*256kB 1*512kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 (H) 0*1024kB 0*2048kB 0*4096kB = 13916kB 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 2654 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 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 0 pages HighMem/MovableOnly 342867 pages reserved __do_softirq+0x308/0xb7e kernel/softirq.c:292 0 pages cma reserved 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:801 RIP: 0010:shrink_page_list+0x79f/0xccd0 mm/vmscan.c:1102 Code: f2 f2 c7 80 f8 02 00 00 f2 f2 f2 f2 c7 80 fc 02 00 00 00 f2 f2 f2 c7 80 00 03 00 00 f2 f2 f2 f2 c7 80 04 03 00 00 00 f2 f2 f2 80 08 03 00 00 f2 f2 f2 f2 c7 80 0c 03 00 00 00 f2 f2 f2 c7 80 RSP: 0000:ffff8801d9a4bcd8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffffed003b3497b6 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff8801d9a4e930 RSI: ffff88021fffa000 RDI: ffff8801d9a4e158 RBP: ffff8801d9a4e078 R08: ffff8801d9a4e198 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8801d9a40040 R12: ffff8801d9a4e050 R13: ffff8801d9a4e258 R14: 0000000000000001 R15: ffff8801d9a4e930 kworker/1:2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) kworker/1:2 cpuset=/ mems_allowed=0 shrink_inactive_list+0x77b/0x1c60 mm/vmscan.c:1953 shrink_list mm/vmscan.c:2264 [inline] shrink_node_memcg+0x78b/0x18f0 mm/vmscan.c:2527 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2742 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x7f4c2eec5dd3 Code: Bad RIP value. RSP: 002b:00007ffc41166818 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007ffc411669c0 RCX: 00007f4c2eec5dd3 RDX: 0000000000000000 RSI: 00007ffc41166b70 RDI: 000000000000000b RBP: 00007ffc41166b70 R08: 00007ffc41166bf0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffc41166f50 R14: 0000000000000000 R15: 0000000000000000 CPU: 1 PID: 5543 Comm: kworker/1:2 Not tainted 4.19.0+ #135 aoe: skb alloc failure