CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc2+ #53 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: 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 rcu: (detected by 1, t=10560 jiffies, g=9233, q=19) warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 rcu: All QSes seen, last rcu_preempt kthread activity 10560 (4294969644-4294959084), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor1 R running task 20776 7176 5355 0x8000000c Call Trace: __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296 print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430 check_cpu_stall kernel/rcu/tree.c:1557 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665 __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:2659 [inline] page_to_skb.isra.42+0xee/0x960 drivers/net/virtio_net.c:377 receive_mergeable+0x15ae/0x3ca0 drivers/net/virtio_net.c:900 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+0x41c/0x10d0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 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 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_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 Code: 40 7e 0f 85 32 ff ff ff e8 45 c3 3e ff e9 28 ff ff ff e8 5c 20 c3 ff 48 83 3d fc 6e 90 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 da 44 RSP: 0018:ffff8801daf07450 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10034199df9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282 RBP: ffff8801daf074c0 R08: ffff8801a0ccefc8 R09: 0000000000000002 R10: 0000000000000000 R11: ffff8801a0cce700 R12: ffff8801d9be7680 R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000282 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 receive_buf+0xb4c/0x3390 drivers/net/virtio_net.c:1009 alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819 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 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:6227 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6293 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 a6 a3 3e ff e9 c5 fe ff ff e8 bd 00 c3 ff 48 83 3d 5d 4f 90 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 da 44 RSP: 0018:ffff8801a0d1f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801a0ccef80 RDI: 0000000000000282 RBP: ffff8801a0d1f7b0 R08: ffff8801a0cce700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0x81f/0x1000 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 Mem-Info: active_anon:40171 inactive_anon:372 isolated_anon:0 active_file:16 inactive_file:17 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8587 slab_unreclaimable:1483385 mapped:41138 shmem:380 pagetables:579 bounce:0 free:13779 free_pcp:230 free_cma:0 Node 0 active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 149504kB 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 2817 6321 6321 Node 0 DMA32 free:25248kB min:30048kB low:37560kB high:45072kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 rcu: rcu_preempt kthread starved for 10560 jiffies! g9233 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 Node 0 rcu: RCU grace-period kthread stack dump: Normal free:13960kB min:37364kB low:46704kB high:56044kB active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3587728kB mlocked:0kB kernel_stack:5312kB pagetables:2316kB bounce:0kB free_pcp:672kB local_pcp:424kB free_cma:0kB rcu_preempt R lowmem_reserve[]: 0 running task 0 22872 10 2 0x80000000 0 Call Trace: 0 context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB schedule+0xfe/0x460 kernel/sched/core.c:3517 (U) 1*128kB (U) 1*256kB (U) 0*512kB schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 1*1024kB (U) 1*2048kB (M) 3*4096kB rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194 (M) = 15908kB Node 0 DMA32: 2*4kB (M) 1*8kB (U) 3*16kB (M) 1*32kB (M) 3*64kB (UM) 3*128kB (M) 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB Node 0 Normal: 932*4kB (UMEH) 379*8kB (MEH) 142*16kB (UMEH) 68*32kB (UMEH) 31*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB 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 413 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 342744 pages reserved 0 pages cma reserved ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/0 cpuset= / mems_allowed=0 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc2+ #53 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.118+0xb7/0x1bd mm/page_alloc.c:3426 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor1 cpuset= syz1 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:2659 [inline] page_to_skb.isra.42+0xee/0x960 drivers/net/virtio_net.c:377 receive_mergeable+0x15ae/0x3ca0 drivers/net/virtio_net.c:900 receive_buf+0xb4c/0x3390 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:6227 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6293 __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: 1 PID: 7176 Comm: syz-executor1 Not tainted 4.19.0-rc2+ #53 Mem-Info: active_anon:40171 inactive_anon:372 isolated_anon:0 active_file:16 inactive_file:17 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8587 slab_unreclaimable:1483385 mapped:41138 shmem:380 pagetables:579 bounce:0 free:13779 free_pcp:230 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 149504kB 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.118+0xb7/0x1bd mm/page_alloc.c:3426 0 2817 6321 6321 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 Node 0 DMA32 free:25248kB min:30048kB low:37560kB high:45072kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB 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:13960kB min:37364kB low:46704kB high:56044kB active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3587728kB mlocked:0kB kernel_stack:5312kB pagetables:2316kB bounce:0kB free_pcp:672kB local_pcp:424kB 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 __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 DMA32: 2*4kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (M) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 1*8kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (U) 3*16kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 1*32kB (M) 3*64kB (UM) 3*128kB (M) 2*256kB (M) 3*512kB (M) alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 4*1024kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (UM) addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819 3*2048kB (UM) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 3*4096kB (M) = 25248kB Node 0 Normal: 932*4kB (UMEH) 379*8kB (MEH) 142*16kB (UMEH) 68*32kB (UMEH) 31*64kB (UMH) 0*128kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB 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 413 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 342744 pages reserved 0 pages cma reserved __do_softirq+0x30b/0xad8 kernel/softirq.c:292 ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/0 cpuset= / mems_allowed=0 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 a6 a3 3e ff e9 c5 fe ff ff e8 bd 00 c3 ff 48 83 3d 5d 4f 90 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 da 44 RSP: 0018:ffff8801a0d1f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801a0ccef80 RDI: 0000000000000282 RBP: ffff8801a0d1f7b0 R08: ffff8801a0cce700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0x81f/0x1000 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc2+ #53 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-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor1 cpuset= syz1 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:2659 [inline] page_to_skb.isra.42+0xee/0x960 drivers/net/virtio_net.c:377 receive_mergeable+0x15ae/0x3ca0 drivers/net/virtio_net.c:900 receive_buf+0xb4c/0x3390 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:6227 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6293 __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: 1 PID: 7176 Comm: syz-executor1 Not tainted 4.19.0-rc2+ #53 Mem-Info: active_anon:40171 inactive_anon:372 isolated_anon:0 active_file:16 inactive_file:17 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8587 slab_unreclaimable:1483385 mapped:41138 shmem:380 pagetables:579 bounce:0 free:13779 free_pcp:230 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 149504kB 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.118+0xb7/0x1bd mm/page_alloc.c:3426 0 2817 6321 6321 Node 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 DMA32 free:25248kB min:30048kB low:37560kB high:45072kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB 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:13960kB min:37364kB low:46704kB high:56044kB active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3587728kB mlocked:0kB kernel_stack:5312kB pagetables:2316kB bounce:0kB free_pcp:672kB local_pcp:424kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB __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 Node 0 DMA32: fallback_alloc+0x203/0x2e0 mm/slab.c:3219 2*4kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (M) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 1*8kB (U) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 3*16kB (M) 1*32kB (M) 3*64kB (UM) 3*128kB (M) alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 2*256kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (M) addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819 3*512kB (M) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB Node 0 Normal: 932*4kB (UMEH) 379*8kB (MEH) 142*16kB (UMEH) 68*32kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 (UMEH) 31*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB 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 413 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 Free swap = 0kB Total swap = 0kB 1965979 pages RAM __do_softirq+0x30b/0xad8 kernel/softirq.c:292 0 pages HighMem/MovableOnly 342744 pages reserved 0 pages cma reserved ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/0 cpuset= / mems_allowed=0 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 a6 a3 3e ff e9 c5 fe ff ff e8 bd 00 c3 ff 48 83 3d 5d 4f 90 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 da 44 RSP: 0018:ffff8801a0d1f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801a0ccef80 RDI: 0000000000000282 RBP: ffff8801a0d1f7b0 R08: ffff8801a0cce700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0x81f/0x1000 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc2+ #53 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-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor1 cpuset= syz1 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:2659 [inline] page_to_skb.isra.42+0xee/0x960 drivers/net/virtio_net.c:377 receive_mergeable+0x15ae/0x3ca0 drivers/net/virtio_net.c:900 receive_buf+0xb4c/0x3390 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:6227 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6293 __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: 1 PID: 7176 Comm: syz-executor1 Not tainted 4.19.0-rc2+ #53 Mem-Info: active_anon:40171 inactive_anon:372 isolated_anon:0 active_file:16 inactive_file:17 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8587 slab_unreclaimable:1483385 mapped:41138 shmem:380 pagetables:579 bounce:0 free:13779 free_pcp:230 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1520kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 149504kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 Call Trace: 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 2817 6321 6321 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 Node 0 DMA32 free:25248kB min:30048kB low:37560kB high:45072kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 0 3503 3503 Node 0 Normal free:13960kB min:37364kB low:46704kB high:56044kB active_anon:160684kB inactive_anon:1488kB active_file:64kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3587728kB mlocked:0kB kernel_stack:5312kB pagetables:2316kB bounce:0kB free_pcp:672kB local_pcp:424kB 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 2*4kB (M) 1*8kB (U) __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 3*16kB (M) 1*32kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (M) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 3*64kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (UM) 3*128kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (M) 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 3*2048kB (UM) alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 3*4096kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (M) addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819 = 25248kB Node 0 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 Normal: 932*4kB (UMEH) 379*8kB (MEH) 142*16kB (UMEH) 68*32kB (UMEH) 31*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 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 413 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 342744 pages reserved 0 pages cma reserved ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/0 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 a6 a3 3e ff e9 c5 fe ff ff e8 bd 00 c3 ff 48 83 3d 5d 4f 90 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 da 44 RSP: 0018:ffff8801a0d1f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801a0ccef80 RDI: 0000000000000282 RBP: ffff8801a0d1f7b0 R08: ffff8801a0cce700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0x81f/0x1000 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc2+ #53 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.118+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor1 cpuset= syz1 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:2659 [inline] page_to_skb.isra.42+0xee/0x960 drivers/net/virtio_net.c:377 receive_mergeable+0x15ae/0x3ca0 drivers/net/virtio_net.c:900 receive_buf+0xb4c/0x3390 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:6227 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6293