syzbot


INFO: rcu detected stall in neigh_timer_handler

Status: auto-closed as invalid on 2019/05/23 06:47
Reported-by: syzbot+@syzkaller.appspotmail.com
First crash: 1468d, last: 1468d
similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in neigh_timer_handler (6) 1 722d 722d 0/24 auto-closed as invalid on 2021/03/09 03:20
upstream INFO: rcu detected stall in neigh_timer_handler (2) 2 1177d 1179d 14/24 fixed on 2019/10/09 10:54
upstream INFO: rcu detected stall in neigh_timer_handler (4) 1 1092d 1092d 0/24 closed as invalid on 2019/12/04 14:04
upstream INFO: rcu detected stall in neigh_timer_handler (5) 1 824d 824d 0/24 auto-closed as invalid on 2020/11/26 10:25
upstream INFO: rcu detected stall in neigh_timer_handler (3) 2 1097d 1097d 0/24 closed as invalid on 2019/11/29 14:24
upstream INFO: rcu detected stall in neigh_timer_handler (7) 1 597d 597d 0/24 auto-closed as invalid on 2021/07/11 19:14
linux-4.14 INFO: rcu detected stall in neigh_timer_handler 5 942d 1062d 0/1 auto-closed as invalid on 2020/08/30 16:21

Sample crash report:
CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.20.0-rc1+ #152
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=4ba/1/0x4000000000000004 softirq=83024/83025 fqs=6 
Workqueue: events_power_efficient neigh_periodic_work
Call Trace:
 <IRQ>
 __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:3423
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
rcu: 	 (t=10637 jiffies g=121169 q=28)
rcu: rcu_preempt kthread starved for 3944 jiffies! g121169 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:2831 [inline]
 __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
 schedule+0xfe/0x460 kernel/sched/core.c:3516
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __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]
 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
 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090
 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
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
NMI backtrace for cpu 0
 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:1023
 </IRQ>
 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/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: 12320 Comm: syz-executor5 Not tainted 4.20.0-rc1+ #152
Mem-Info:
active_anon:52314 inactive_anon:2925 isolated_anon:0
 active_file:8 inactive_file:18 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9209 slab_unreclaimable:1450438
 mapped:49154 shmem:3962 pagetables:640 bounce:0
 free:13785 free_pcp:451 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:209256kB inactive_anon:11700kB active_file:32kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:15848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 167936kB 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:25248kB 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:2888776kB 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:13984kB min:37364kB low:46704kB high:56044kB active_anon:209256kB inactive_anon:11700kB active_file:32kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6848kB pagetables:2560kB bounce:0kB free_pcp:1556kB local_pcp:1304kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
 nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101
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: 2*4kB (M) 1*8kB (U) 3*16kB (UM) 3*32kB (M) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB
 nmi_trigger_cpumask_backtrace+0x1e8/0x22a lib/nmi_backtrace.c:62
Node 0 Normal: 1268*4kB (UMEH) 570*8kB (UMEH) 190*16kB (MH) 37*32kB (UMH) 1*64kB (H) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14048kB
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline]
 rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334
3988 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
342853 pages reserved
0 pages cma reserved
aoe: skb alloc failure
kworker/1:0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
kworker/1:0 cpuset=/ mems_allowed=0
 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
 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: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 85 ec 3d ff e9 28 ff ff ff e8 ec 21 c3 ff 48 83 3d 04 6b 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 22 c0
RSP: 0000:ffff8801dae069e8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003215dda6
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801dae06a58 R08: ffff880190aeed30 R09: 0000000000000002
R10: 0000000000000000 R11: ffff880190aee440 R12: ffff8801d9a1c0c0
R13: ffff8801d9a1c0c0 R14: 0000000000000000 R15: 0000000000000286
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 alloc_skb_with_frags+0x133/0x7d0 net/core/skbuff.c:5215
 sock_alloc_send_pskb+0x87a/0xaf0 net/core/sock.c:2083
 sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2100
 __ip_append_data.isra.48+0x15b8/0x29b0 net/ipv4/ip_output.c:981
 ip_append_data.part.49+0xef/0x170 net/ipv4/ip_output.c:1196
 ip_append_data+0x6d/0x90 net/ipv4/ip_output.c:1185
 icmp_push_reply+0x18e/0x540 net/ipv4/icmp.c:375
 icmp_send+0x1544/0x1bd0 net/ipv4/icmp.c:736
 ipv4_link_failure+0x2c/0x220 net/ipv4/route.c:1187
 dst_link_failure include/net/dst.h:427 [inline]
 arp_error_report+0xd1/0x1c0 net/ipv4/arp.c:297
 neigh_invalidate+0x246/0x550 net/core/neighbour.c:913
 neigh_timer_handler+0xb07/0xdf0 net/core/neighbour.c:999
 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:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 d6 cc 3d ff e9 c5 fe ff ff e8 3d 02 c3 ff 48 83 3d 55 4b 8f 07 00 0f 84 41 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 22 c0
RSP: 0000:ffff88019bdb7718 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff880190aeecc0 RDI: 0000000000000286
RBP: ffff88019bdb7780 R08: ffff880190aee440 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
 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+0x8ce/0x1000
CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.20.0-rc1+ #152
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor5 cpuset=syz5 mems_allowed=0
Workqueue: events_power_efficient neigh_periodic_work
Call Trace:
 <IRQ>
 __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:3423
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __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]
 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+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:1023
 </IRQ>
 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/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
CPU: 0 PID: 12320 Comm: syz-executor5 Not tainted 4.20.0-rc1+ #152
Mem-Info:
active_anon:52314 inactive_anon:2925 isolated_anon:0
 active_file:8 inactive_file:18 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9209 slab_unreclaimable:1450438
 mapped:49154 shmem:3962 pagetables:640 bounce:0
 free:13785 free_pcp:451 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:209256kB inactive_anon:11700kB active_file:32kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:15848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 167936kB 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:25248kB 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:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
Node 0 Normal free:13984kB min:37364kB low:46704kB high:56044kB active_anon:209256kB inactive_anon:11700kB active_file:32kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6848kB pagetables:2560kB bounce:0kB free_pcp:1556kB local_pcp:1304kB 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: 2*4kB (M) 1*8kB (U) 3*16kB (UM) 3*32kB (M) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB
Node 0 Normal: 1268*4kB (UMEH) 570*8kB (UMEH) 190*16kB (MH) 37*32kB (UMH) 1*64kB (H) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14048kB
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
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
3988 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
342853 pages reserved
0 pages cma reserved
aoe: skb alloc failure
kworker/1:0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
kworker/1:0 cpuset=/ mems_allowed=0
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __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
 dst_alloc+0xbb/0x1d0 net/core/dst.c:105
 rt_dst_alloc+0x105/0x540 net/ipv4/route.c:1566
 ip_route_input_slow+0x1d14/0x3ea0 net/ipv4/route.c:2042
 ip_route_input_rcu+0x10a/0xd80 net/ipv4/route.c:2171
 ip_route_input_noref+0x11d/0x260 net/ipv4/route.c:2117
 ip_route_input include/net/route.h:192 [inline]
 icmp_route_lookup.constprop.23+0xb67/0x1900 net/ipv4/icmp.c:528
 icmp_send+0x12ec/0x1bd0 net/ipv4/icmp.c:714
 ipv4_link_failure+0x2c/0x220 net/ipv4/route.c:1187
 dst_link_failure include/net/dst.h:427 [inline]
 arp_error_report+0xd1/0x1c0 net/ipv4/arp.c:297
 neigh_invalidate+0x246/0x550 net/core/neighbour.c:913
 neigh_timer_handler+0xb07/0xdf0 net/core/neighbour.c:999
 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:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 d6 cc 3d ff e9 c5 fe ff ff e8 3d 02 c3 ff 48 83 3d 55 4b 8f 07 00 0f 84 41 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 22 c0
RSP: 0000:ffff88019bdb7718 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff880190aeecc0 RDI: 0000000000000286
RBP: ffff88019bdb7780 R08: ffff880190aee440 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
 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+0x8ce/0x1000
CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.20.0-rc1+ #152
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor5 cpuset=syz5 mems_allowed=0
Workqueue: events_power_efficient neigh_periodic_work
Call Trace:
 <IRQ>
 __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:3423
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __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]
 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+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:1023
 </IRQ>
 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/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: 12320 Comm: syz-executor5 Not tainted 4.20.0-rc1+ #152
Mem-Info:
active_anon:52314 inactive_anon:2925 isolated_anon:0
 active_file:8 inactive_file:18 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9209 slab_unreclaimable:1450438
 mapped:49154 shmem:3962 pagetables:640 bounce:0
 free:13785 free_pcp:451 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:209256kB inactive_anon:11700kB active_file:32kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:15848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 167936kB 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:25248kB 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:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
Node 0 Normal free:13984kB min:37364kB low:46704kB high:56044kB active_anon:209256kB inactive_anon:11700kB active_file:32kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6848kB pagetables:2560kB bounce:0kB free_pcp:1556kB local_pcp:1304kB 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: 2*4kB (M) 1*8kB (U) 3*16kB (UM) 3*32kB (M) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB
Node 0 Normal: 1268*4kB (UMEH) 570*8kB (UMEH) 190*16kB (MH) 37*32kB (UMH) 1*64kB (H) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14048kB
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
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
3988 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
342853 pages reserved
0 pages cma reserved
aoe: skb alloc failure
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __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]
 alloc_skb_with_frags+0x133/0x7d0 net/core/skbuff.c:5215
 sock_alloc_send_pskb+0x87a/0xaf0 net/core/sock.c:2083
 sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2100
 __ip_append_data.isra.48+0x15b8/0x29b0 net/ipv4/ip_output.c:981
 ip_append_data.part.49+0xef/0x170 net/ipv4/ip_output.c:1196
 ip_append_data+0x6d/0x90 net/ipv4/ip_output.c:1185
 icmp_push_reply+0x18e/0x540 net/ipv4/icmp.c:375
 icmp_send+0x1544/0x1bd0 net/ipv4/icmp.c:736
 ipv4_link_failure+0x2c/0x220 net/ipv4/route.c:1187
 dst_link_failure include/net/dst.h:427 [inline]
 arp_error_report+0xd1/0x1c0 net/ipv4/arp.c:297
 neigh_invalidate+0x246/0x550 net/core/neighbour.c:913
 neigh_timer_handler+0xb07/0xdf0 net/core/neighbour.c:999
 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:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 d6 cc 3d ff e9 c5 fe ff ff e8 3d 02 c3 ff 48 83 3d 55 4b 8f 07 00 0f 84 41 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 22 c0
RSP: 0000:ffff88019bdb7718 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff880190aeecc0 RDI: 0000000000000286
RBP: ffff88019bdb7780 R08: ffff880190aee440 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
 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+0x8ce/0x1000
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor5 cpuset=syz5 mems_allowed=0
CPU: 0 PID: 12320 Comm: syz-executor5 Not tainted 4.20.0-rc1+ #152
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
oom_reaper: reaped process 6065 (syz-executor2), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
rsyslogd invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
rsyslogd cpuset=/ mems_allowed=0
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __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]
 nlmsg_new include/net/netlink.h:654 [inline]
 __neigh_notify+0x8c/0x160 net/core/neighbour.c:3011
 neigh_update_notify net/core/neighbour.c:2357 [inline]
 neigh_timer_handler+0x6cb/0xdf0 net/core/neighbour.c:1017
 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:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 d6 cc 3d ff e9 c5 fe ff ff e8 3d 02 c3 ff 48 83 3d 55 4b 8f 07 00 0f 84 41 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 22 c0
RSP: 0000:ffff88019bdb7718 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff880190aeecc0 RDI: 0000000000000286
RBP: ffff88019bdb7780 R08: ffff880190aee440 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
 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+0x8ce/0x1000
CPU: 1 PID: 5911 Comm: rsyslogd Not tainted 4.20.0-rc1+ #152
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:52257 inactive_anon:2925 isolated_anon:0
 active_file:15 inactive_file:11 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9209 slab_unreclaimable:1450453
 mapped:40962 shmem:3962 pagetables:596 bounce:0
 free:13880 free_pcp:480 free_cma:0
Call Trace:
Node 0 active_anon:209028kB inactive_anon:11700kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:15848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
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:25248kB 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:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
Node 0 Normal free:14364kB min:37364kB low:46704kB high:56044kB active_anon:209028kB inactive_anon:11700kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2384kB bounce:0kB free_pcp:1672kB local_pcp:252kB 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: 2*4kB (M) 1*8kB (U) 3*16kB (UM) 3*32kB (M) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB
Node 0 Normal: 1311*4kB (UMEH) 577*8kB (UMEH) 192*16kB (UMH) 39*32kB (UMH) 1*64kB (H) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14372kB
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
3988 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
342853 pages reserved
0 pages cma reserved
net_ratelimit: 144 callbacks suppressed
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor5 cpuset=syz5 mems_allowed=0
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3519 [inline]
 __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4240
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
 page_cache_read mm/filemap.c:2312 [inline]
 filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
 __do_fault+0x100/0x6b0 mm/memory.c:2996
 do_read_fault mm/memory.c:3408 [inline]
 do_fault mm/memory.c:3534 [inline]
 handle_pte_fault mm/memory.c:3765 [inline]
 __handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 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:1139
RIP: 0033:0x7f0a530301fd
Code: Bad RIP value.
RSP: 002b:00007f0a505cfe30 EFLAGS: 00010293
RAX: 00000000000000b9 RBX: 0000000002436650 RCX: 00007f0a530301fd
RDX: 0000000000000fff RSI: 00007f0a51e045a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000002421260 R09: 0000000000000000
R10: 6b205d3334343032 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f0a505d09c0 R14: 00007f0a53675040 R15: 0000000000000003
CPU: 0 PID: 12320 Comm: syz-executor5 Not tainted 4.20.0-rc1+ #152
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:3423
Mem-Info:
active_anon:52257 inactive_anon:2925 isolated_anon:0
 active_file:14 inactive_file:12 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9196 slab_unreclaimable:1450559
 mapped:40962 shmem:3962 pagetables:596 bounce:0
 free:13764 free_pcp:480 free_cma:0
Node 0 active_anon:209028kB inactive_anon:11700kB active_file:56kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:15848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
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:25248kB 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:2888776kB 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:13900kB min:37364kB low:46704kB high:56044kB active_anon:209028kB inactive_anon:11700kB active_file:56kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2384kB bounce:0kB free_pcp:1672kB local_pcp:1420kB 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: 2*4kB (M) 1*8kB (U) 3*16kB (UM) 3*32kB (M) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB
Node 0 Normal: 1289*4kB (UMEH) 570*8kB (UMEH) 190*16kB (MH) 34*32kB (UMH) 1*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13908kB
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
3988 total pagecache pages
0 pages in swap cache
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
 __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
342853 pages reserved
0 pages cma reserved
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
Unreclaimable slab info:
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node_trace+0xe7/0x740 mm/slab.c:3661
 __do_kmalloc_node mm/slab.c:3683 [inline]
 __kmalloc_node_track_caller+0x3c/0x70 mm/slab.c:3698
Name                      Used          Total
 __kmalloc_reserve.isra.40+0xcc/0xe0 net/core/skbuff.c:145
pid_2                      1KB         24KB
 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460
TIPC                      10KB         21KB
SCTPv6                    14KB         18KB
DCCPv6                    17KB         21KB
DCCP                      16KB         20KB
bridge_fdb_cache          22KB         23KB
fib6_nodes                86KB        104KB
 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5073
ip6_dst_cache            148KB        262KB
RAWv6                     68KB         71KB
UDPv6                      3KB          3KB
TCPv6                     23KB         23KB
 __bpf_try_make_writable net/core/filter.c:1638 [inline]
 bpf_try_make_writable net/core/filter.c:1644 [inline]
 bpf_try_make_head_writable net/core/filter.c:1652 [inline]
 ____bpf_clone_redirect net/core/filter.c:2089 [inline]
 bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2067
nf_conntrack             102KB        105KB
 bpf_prog_bebbfe2050753572+0x8ce/0x1000
sd_ext_cdb                 0KB          3KB
scsi_sense_cache        1056KB       1060KB
virtio_scsi_cmd           16KB         16KB
sgpool-128                 8KB          8KB
sgpool-64                  4KB          6KB
sgpool-32                  2KB          7KB
sgpool-16                  1KB          3KB
sgpool-8                   0KB          3KB
mqueue_inode_cache         10KB         21KB
bio_post_read_ctx         14KB         15KB
bio-2                     14KB         15KB
jfs_mp                     7KB          7KB
nfs_commit_data            3KB          7KB
nfs_write_data            32KB         32KB
ext4_system_zone           0KB          3KB
bio-1                      1KB          3KB
fasync_cache               0KB          8KB
pid_namespace              2KB          7KB
rpc_buffers               17KB         19KB
rpc_tasks                  2KB          3KB
UNIX                       9KB         14KB
Mem-Info:
active_anon:52257 inactive_anon:2925 isolated_anon:0
 active_file:14 inactive_file:12 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9196 slab_unreclaimable:1450559
 mapped:40962 shmem:3962 pagetables:596 bounce:0
 free:13764 free_pcp:480 free_cma:0
ip4-frags                771KB        773KB
Node 0 active_anon:209028kB inactive_anon:11700kB active_file:56kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:15848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB 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
tcp_bind_bucket            1KB          4KB
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:25248kB 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:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
inet_peer_cache           19KB         20KB
Node 0 Normal free:13900kB min:37364kB low:46704kB high:56044kB active_anon:209028kB inactive_anon:11700kB active_file:56kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2384kB bounce:0kB free_pcp:1672kB local_pcp:252kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
ip_fib_trie               11KB         19KB
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
ip_fib_alias              52KB         71KB
Node 0 DMA32: 2*4kB (M) 1*8kB (U) 3*16kB (UM) 3*32kB (M) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25248kB
ip_dst_cache             992KB        992KB
Node 0 Normal: 1289*4kB (UMEH) 570*8kB (UMEH) 190*16kB (MH) 34*32kB (UMH) 1*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13908kB
RAW                       40KB         43KB
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
3988 total pagecache pages
0 pages in swap cache
UDP                       16KB         26KB
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342853 pages reserved
TCP                        8KB         11KB
0 pages cma reserved
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
hugetlbfs_inode_cache          2KB          7KB
syz-executor5 cpuset=syz5 mems_allowed=0
CPU: 0 PID: 12320 Comm: syz-executor5 Not tainted 4.20.0-rc1+ #152
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:3423
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
fscache_cookie_jar          1KB          3KB
eventpoll_pwq              3KB         15KB
eventpoll_epi              6KB         27KB
inotify_inode_mark          5KB         31KB
request_queue            164KB        164KB
blkdev_ioc                 8KB         23KB
bio-0                     61KB        153KB
biovec-max              1204KB       1204KB
biovec-64                 40KB         47KB
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
biovec-16                  4KB          7KB
bio_integrity_payload          1KB          3KB
khugepaged_mm_slot          0KB          7KB
 __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
dmaengine-unmap-256          2KB          6KB
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node_trace+0xe7/0x740 mm/slab.c:3661
dmaengine-unmap-128          1KB          3KB

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-next-kasan-gce 2018/11/24 06:44 bpf-next 5a863813216c eb9ed731 .config log report
* Struck through repros no longer work on HEAD.