CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109 rcu: INFO: rcu_preempt self-detected stall on CPU Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: rcu: 0-....: (90 ticks this GP) idle=402/1/0x4000000000000004 softirq=20646/20646 fqs=5 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 rcu: (t=10634 jiffies g=27305 q=37) rcu: rcu_preempt kthread starved for 678 jiffies! g27305 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 23064 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194 __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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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 __build_skb+0xab/0x430 net/core/skbuff.c:281 __napi_alloc_skb+0x1d6/0x310 net/core/skbuff.c:482 napi_alloc_skb include/linux/skbuff.h:2701 [inline] page_to_skb.isra.42+0xee/0x8d0 drivers/net/virtio_net.c:377 receive_mergeable+0x155d/0x3a90 drivers/net/virtio_net.c:900 receive_buf+0xb3c/0x3270 drivers/net/virtio_net.c:1009 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 NMI backtrace for cpu 0 virtnet_receive drivers/net/virtio_net.c:1298 [inline] virtnet_poll+0x421/0x105f drivers/net/virtio_net.c:1385 napi_poll net/core/dev.c:6228 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6294 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 13125 Comm: syz-executor5 Not tainted 4.19.0-rc5+ #109 Mem-Info: active_anon:53777 inactive_anon:125 isolated_anon:0 active_file:18 inactive_file:16 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9243 slab_unreclaimable:1469751 mapped:24578 shmem:132 pagetables:506 bounce:0 free:13759 free_pcp:416 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:215108kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:528kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB 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+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 2819 6323 6323 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101 Node 0 DMA32 free:25276kB min:30060kB low:37572kB high:45084kB active_anon:196kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 lowmem_reserve[]: 0 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 0 3503 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340 3503 Node 0 print_cpu_stall.cold.78+0x2d3/0x524 kernel/rcu/tree.c:1478 Normal free:13852kB min:37352kB low:46688kB high:56024kB active_anon:214912kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:2024kB bounce:0kB free_pcp:1416kB local_pcp:1168kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xfd9/0x1990 kernel/rcu/tree.c:2665 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 1*4kB (M) 1*8kB (M) 3*16kB (UM) 0*32kB 4*64kB (M) 5*128kB (UM) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) update_process_times+0x2d/0x70 kernel/time/timer.c:1636 2*2048kB (M) tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 3*4096kB tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 (M) __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 = 25276kB Node 0 Normal: 1103*4kB (UME) 430*8kB (ME) 195*16kB (UME) 55*32kB (UME) 16*64kB (ME) hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 1*128kB local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1054 (M) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13884kB 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 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 166 total pagecache pages RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 0 pages in swap cache Code: 40 7e 0f 85 32 ff ff ff e8 05 b4 3e ff e9 28 ff ff ff e8 5c f7 c2 ff 48 83 3d 3c 28 70 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 5a f1 Swap cache stats: add 0, delete 0, find 0/0 RSP: 0018:ffff8801dae07450 EFLAGS: 00000286 Free swap = 0kB ORIG_RAX: ffffffffffffff13 Total swap = 0kB RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10033a1e531 1965979 pages RAM RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 0 pages HighMem/MovableOnly 342307 pages reserved RBP: ffff8801dae074c0 R08: ffff88019d0f2988 R09: 0000000000000002 0 pages cma reserved R10: 0000000000000000 R11: ffff88019d0f20c0 R12: ffff8801d9a04040 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) R13: ffff8801d9a04040 R14: 0000000000000000 R15: 0000000000000286 ksoftirqd/1 cpuset= / __alloc_skb+0x119/0x770 net/core/skbuff.c:193 mems_allowed=0 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:3820 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+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 66 94 3e ff e9 c5 fe ff ff e8 bd d7 c2 ff 48 83 3d 9d 08 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 5a f1 RSP: 0018:ffff88019594f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88019d0f2940 RDI: 0000000000000286 RBP: ffff88019594f7b0 R08: ffff88019d0f20c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_88483476fbe68a28+0x289/0x1000 CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109 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: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor5 cpuset= syz5 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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 __build_skb+0xab/0x430 net/core/skbuff.c:281 __napi_alloc_skb+0x1d6/0x310 net/core/skbuff.c:482 napi_alloc_skb include/linux/skbuff.h:2701 [inline] page_to_skb.isra.42+0xee/0x8d0 drivers/net/virtio_net.c:377 receive_mergeable+0x155d/0x3a90 drivers/net/virtio_net.c:900 receive_buf+0xb3c/0x3270 drivers/net/virtio_net.c:1009 virtnet_receive drivers/net/virtio_net.c:1298 [inline] virtnet_poll+0x421/0x105f drivers/net/virtio_net.c:1385 napi_poll net/core/dev.c:6228 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6294 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 CPU: 0 PID: 13125 Comm: syz-executor5 Not tainted 4.19.0-rc5+ #109 Mem-Info: active_anon:53777 inactive_anon:125 isolated_anon:0 active_file:18 inactive_file:16 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9243 slab_unreclaimable:1469751 mapped:24578 shmem:132 pagetables:506 bounce:0 free:13759 free_pcp:416 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:215108kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:528kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 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 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 2819 6323 6323 Node 0 DMA32 free:25276kB min:30060kB low:37572kB high:45084kB active_anon:196kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 0 0 3503 3503 Node 0 Normal free:13852kB min:37352kB low:46688kB high:56024kB active_anon:214912kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:2024kB bounce:0kB free_pcp:1416kB local_pcp:1168kB 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: 1*4kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (M) 1*8kB (M) 3*16kB (UM) 0*32kB 4*64kB (M) 5*128kB (UM) 5*256kB __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+0x91/0x8c0 mm/slab.c:2677 (UM) 5*512kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (UM) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*1024kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (UM) 2*2048kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 3*4096kB (M) = 25276kB Node 0 Normal: 1103*4kB (UME) 430*8kB (ME) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 195*16kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (UME) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3820 56*32kB (UME) 16*64kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (ME) 1*128kB (M) 0*256kB 0*512kB 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 166 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 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0 pages HighMem/MovableOnly 342307 pages reserved 0 pages cma reserved ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset= / mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 66 94 3e ff e9 c5 fe ff ff e8 bd d7 c2 ff 48 83 3d 9d 08 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 5a f1 RSP: 0018:ffff88019594f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88019d0f2940 RDI: 0000000000000286 RBP: ffff88019594f7b0 R08: ffff88019d0f20c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_88483476fbe68a28+0x289/0x1000 CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109 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: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor5 cpuset= syz5 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 mems_allowed=0 __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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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 __build_skb+0xab/0x430 net/core/skbuff.c:281 __napi_alloc_skb+0x1d6/0x310 net/core/skbuff.c:482 napi_alloc_skb include/linux/skbuff.h:2701 [inline] page_to_skb.isra.42+0xee/0x8d0 drivers/net/virtio_net.c:377 receive_mergeable+0x155d/0x3a90 drivers/net/virtio_net.c:900 receive_buf+0xb3c/0x3270 drivers/net/virtio_net.c:1009 virtnet_receive drivers/net/virtio_net.c:1298 [inline] virtnet_poll+0x421/0x105f drivers/net/virtio_net.c:1385 napi_poll net/core/dev.c:6228 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6294 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 13125 Comm: syz-executor5 Not tainted 4.19.0-rc5+ #109 Mem-Info: active_anon:53777 inactive_anon:125 isolated_anon:0 active_file:18 inactive_file:16 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9243 slab_unreclaimable:1469751 mapped:24578 shmem:132 pagetables:506 bounce:0 free:13759 free_pcp:416 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:215108kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:528kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB 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+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 2819 6323 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 6323 Node 0 DMA32 free:25276kB min:30060kB low:37572kB high:45084kB active_anon:196kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 3503 3503 Node 0 Normal free:13852kB min:37352kB low:46688kB high:56024kB active_anon:214912kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:2024kB bounce:0kB free_pcp:1416kB local_pcp:1168kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 = 15908kB Node 0 DMA32: 1*4kB (M) 1*8kB (M) 3*16kB (UM) 0*32kB __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+0x91/0x8c0 mm/slab.c:2677 4*64kB (M) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 5*128kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (UM) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 5*256kB (UM) 5*512kB (UM) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 4*1024kB (UM) 2*2048kB (M) 3*4096kB (M) = 25276kB Node 0 Normal: 1103*4kB (UME) 430*8kB (ME) 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:1374 195*16kB (UME) 56*32kB (UME) 16*64kB (ME) 1*128kB (M) 0*256kB 0*512kB discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 0*1024kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 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 166 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 342307 pages reserved 0 pages cma reserved ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset= / mems_allowed=0 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+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 66 94 3e ff e9 c5 fe ff ff e8 bd d7 c2 ff 48 83 3d 9d 08 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 5a f1 RSP: 0018:ffff88019594f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88019d0f2940 RDI: 0000000000000286 RBP: ffff88019594f7b0 R08: ffff88019d0f20c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_88483476fbe68a28+0x289/0x1000 CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109 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+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor5 cpuset= syz5 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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 __build_skb+0xab/0x430 net/core/skbuff.c:281 __napi_alloc_skb+0x1d6/0x310 net/core/skbuff.c:482 napi_alloc_skb include/linux/skbuff.h:2701 [inline] page_to_skb.isra.42+0xee/0x8d0 drivers/net/virtio_net.c:377 receive_mergeable+0x155d/0x3a90 drivers/net/virtio_net.c:900 receive_buf+0xb3c/0x3270 drivers/net/virtio_net.c:1009 virtnet_receive drivers/net/virtio_net.c:1298 [inline] virtnet_poll+0x421/0x105f drivers/net/virtio_net.c:1385 napi_poll net/core/dev.c:6228 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6294 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 13125 Comm: syz-executor5 Not tainted 4.19.0-rc5+ #109 Mem-Info: active_anon:53777 inactive_anon:125 isolated_anon:0 active_file:18 inactive_file:16 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9243 slab_unreclaimable:1469751 mapped:24578 shmem:132 pagetables:506 bounce:0 free:13759 free_pcp:416 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:215108kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:528kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 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[]: warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 0 2819 6323 6323 Node 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 DMA32 free:25276kB min:30060kB low:37572kB high:45084kB active_anon:196kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13852kB min:37352kB low:46688kB high:56024kB active_anon:214912kB inactive_anon:500kB active_file:72kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:2024kB bounce:0kB free_pcp:1416kB local_pcp:1168kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 = 15908kB Node 0 DMA32: 1*4kB (M) 1*8kB (M) 3*16kB (UM) 0*32kB 4*64kB __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+0x91/0x8c0 mm/slab.c:2677 (M) 5*128kB (UM) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 5*256kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (UM) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 5*512kB (UM) 4*1024kB (UM) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 2*2048kB (M) 3*4096kB (M) = 25276kB Node 0 Normal: 1103*4kB (UME) 430*8kB (ME) 195*16kB alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 (UME) aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374 56*32kB (UME) 16*64kB (ME) 1*128kB (M) 0*256kB discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 0*512kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 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 166 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 342307 pages reserved 0 pages cma reserved expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset= / mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 66 94 3e ff e9 c5 fe ff ff e8 bd d7 c2 ff 48 83 3d 9d 08 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 5a f1 RSP: 0018:ffff88019594f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88019d0f2940 RDI: 0000000000000286 RBP: ffff88019594f7b0 R08: ffff88019d0f20c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_88483476fbe68a28+0x289/0x1000 CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109 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+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor5 cpuset=syz5 mems_allowed=0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2667/0x2d80 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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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 __build_skb+0xab/0x430 net/core/skbuff.c:281 __napi_alloc_skb+0x1d6/0x310 net/core/skbuff.c:482 napi_alloc_skb include/linux/skbuff.h:2701 [inline] page_to_skb.isra.42+0xee/0x8d0 drivers/net/virtio_net.c:377 receive_mergeable+0x155d/0x3a90 drivers/net/virtio_net.c:900