run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
kthread+0x35a/0x440 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
CPU: 1 PID: 6027 Comm: syz-fuzzer Not tainted 4.20.0-rc1-next-20181109+ #110
rcu: INFO: rcu_preempt self-detected stall on CPU
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
rcu: 0-...!: (1 GPs behind) idle=5b2/1/0x4000000000000002 softirq=29624/29625 fqs=0
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
rcu: (t=10601 jiffies g=34565 q=33)
rcu: rcu_preempt kthread starved for 10601 jiffies! g34565 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R running task 22776 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
schedule+0xef/0x370 kernel/sched/core.c:3516
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1948
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2105
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
kthread+0x35a/0x440 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
NMI backtrace for cpu 0
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
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 b1 2d fc f9 48 83 3d a9 28 8b 01 00 0f 84 63 fe ff ff e8 9e d5 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 8b d5 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0000:ffff8801b2bae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801c1f40700 RBX: 1ffffffff12a3f76 RCX: 1ffff100383e81fe
RDX: 0000000000000000 RSI: ffffffff87c6d312 RDI: 0000000000000293
RBP: ffff8801b2bae290 R08: ffff8801c1f40ff0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801c1f40700 R12: 1ffff10036575c45
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
out_of_memory+0xa7f/0x1430 mm/oom_kill.c:1120
__alloc_pages_may_oom mm/page_alloc.c:3515 [inline]
__alloc_pages_slowpath+0x236a/0x2e30 mm/page_alloc.c:4236
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x3ce/0x570 mm/filemap.c:924
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:6292
__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+0x5d6/0xe40 arch/x86/mm/fault.c:1489
do_page_fault+0xed/0x7d1 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c420024ea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 000000003b94b068 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
RBP: 000000c420024ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000000000001f R14: 0000000000b81d20 R15: 000000000000a6f6
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1-next-20181109+ #110
Mem-Info:
active_anon:129018 inactive_anon:195 isolated_anon:0
active_file:12 inactive_file:15 isolated_file:0
unevictable:1 dirty:0 writeback:0 unstable:0
slab_reclaimable:8796 slab_unreclaimable:1376794
mapped:49154 shmem:268 pagetables:1480 bounce:0
free:13741 free_pcp:161 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:516072kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1072kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 143360kB 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
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:25152kB min:30052kB low:37564kB high:45076kB active_anon:8244kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13904kB min:37364kB low:46704kB high:56044kB active_anon:507828kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:7776kB pagetables:5920kB bounce:0kB free_pcp:644kB local_pcp:396kB 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: 0*4kB 0*8kB 2*16kB (UM) 3*32kB (UM) 3*64kB (M) 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 1*2048kB (U) 4*4096kB (M) = 25152kB
nmi_trigger_cpumask_backtrace+0x1e8/0x22a lib/nmi_backtrace.c:62
Node 0 Normal: 562*4kB (ME) 589*8kB (UME) 252*16kB (MH) 1*32kB (H) 1*64kB (H) 2*128kB (UH) 2*256kB (UH) 2*512kB (UH) 1*1024kB (H) 0*2048kB 0*4096kB = 13904kB
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:1211
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
296 total pagecache pages
print_cpu_stall.cold.70+0x218/0x40a kernel/rcu/tree.c:1348
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
check_cpu_stall kernel/rcu/tree.c:1422 [inline]
rcu_pending kernel/rcu/tree.c:3018 [inline]
rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2521
update_process_times+0x2d/0x70 kernel/time/timer.c:1636
tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
__run_hrtimer kernel/time/hrtimer.c:1398 [inline]
__hrtimer_run_queues+0x412/0x10c0 kernel/time/hrtimer.c:1460
hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline]
smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline]
RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642
Code: 3f 7e 0f 85 32 ff ff ff e8 d5 f4 3d ff e9 28 ff ff ff e8 4c 48 c3 ff 48 83 3d 44 73 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 b9
RSP: 0000:ffff8801d9aff410 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b35e15c
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffff8801d9aff480 R08: ffff8801d9af0ae0 R09: 0000000000000002
R10: 0000000000000000 R11: ffff8801d9af0240 R12: ffff8801d9bf1c00
R13: ffff8801d9bf1c00 R14: 0000000000000000 R15: 0000000000000282
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
kthread+0x35a/0x440 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
CPU: 1 PID: 6027 Comm: syz-fuzzer Not tainted 4.20.0-rc1-next-20181109+ #110
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
ksoftirqd/0 cpuset=/ mems_allowed=0
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
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
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 b1 2d fc f9 48 83 3d a9 28 8b 01 00 0f 84 63 fe ff ff e8 9e d5 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 8b d5 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0000:ffff8801b2bae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801c1f40700 RBX: 1ffffffff12a3f76 RCX: 1ffff100383e81fe
RDX: 0000000000000000 RSI: ffffffff87c6d312 RDI: 0000000000000293
RBP: ffff8801b2bae290 R08: ffff8801c1f40ff0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801c1f40700 R12: 1ffff10036575c45
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
out_of_memory+0xa7f/0x1430 mm/oom_kill.c:1120
__alloc_pages_may_oom mm/page_alloc.c:3515 [inline]
__alloc_pages_slowpath+0x236a/0x2e30 mm/page_alloc.c:4236
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x3ce/0x570 mm/filemap.c:924
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:6292
__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+0x5d6/0xe40 arch/x86/mm/fault.c:1489
do_page_fault+0xed/0x7d1 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c420024ea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 000000003b94b068 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
RBP: 000000c420024ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000000000001f R14: 0000000000b81d20 R15: 000000000000a6f6
Mem-Info:
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1-next-20181109+ #110
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:129018 inactive_anon:195 isolated_anon:0
active_file:12 inactive_file:15 isolated_file:0
unevictable:1 dirty:0 writeback:0 unstable:0
slab_reclaimable:8796 slab_unreclaimable:1376794
mapped:49154 shmem:268 pagetables:1480 bounce:0
free:13741 free_pcp:161 free_cma:0
Call Trace:
Node 0 active_anon:516072kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1072kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 143360kB 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
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
Node 0 DMA32 free:25152kB min:30052kB low:37564kB high:45076kB active_anon:8244kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13904kB min:37364kB low:46704kB high:56044kB active_anon:507828kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:7776kB pagetables:5920kB bounce:0kB free_pcp:644kB local_pcp:396kB 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
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
Node 0 DMA32: 0*4kB 0*8kB 2*16kB (UM) 3*32kB (UM) 3*64kB (M) 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 1*2048kB (U) 4*4096kB (M) = 25152kB
Node 0 Normal: 562*4kB (ME) 589*8kB (UME) 252*16kB (MH) 1*32kB (H) 1*64kB (H) 2*128kB (UH) 2*256kB (UH) 2*512kB (UH) 1*1024kB (H) 0*2048kB 0*4096kB = 13904kB
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
296 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
kthread+0x35a/0x440 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
CPU: 1 PID: 6027 Comm: syz-fuzzer Not tainted 4.20.0-rc1-next-20181109+ #110
ksoftirqd/0: 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
ksoftirqd/0 cpuset=/ mems_allowed=0
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 b1 2d fc f9 48 83 3d a9 28 8b 01 00 0f 84 63 fe ff ff e8 9e d5 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 8b d5 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0000:ffff8801b2bae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801c1f40700 RBX: 1ffffffff12a3f76 RCX: 1ffff100383e81fe
RDX: 0000000000000000 RSI: ffffffff87c6d312 RDI: 0000000000000293
RBP: ffff8801b2bae290 R08: ffff8801c1f40ff0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801c1f40700 R12: 1ffff10036575c45
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
out_of_memory+0xa7f/0x1430 mm/oom_kill.c:1120
__alloc_pages_may_oom mm/page_alloc.c:3515 [inline]
__alloc_pages_slowpath+0x236a/0x2e30 mm/page_alloc.c:4236
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x3ce/0x570 mm/filemap.c:924
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:6292
__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+0x5d6/0xe40 arch/x86/mm/fault.c:1489
do_page_fault+0xed/0x7d1 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c420024ea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 000000003b94b068 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
RBP: 000000c420024ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000000000001f R14: 0000000000b81d20 R15: 000000000000a6f6
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1-next-20181109+ #110
Mem-Info:
active_anon:129018 inactive_anon:195 isolated_anon:0
active_file:12 inactive_file:15 isolated_file:0
unevictable:1 dirty:0 writeback:0 unstable:0
slab_reclaimable:8796 slab_unreclaimable:1376794
mapped:49154 shmem:268 pagetables:1480 bounce:0
free:13741 free_pcp:161 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:516072kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1072kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 143360kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:25152kB min:30052kB low:37564kB high:45076kB active_anon:8244kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13904kB min:37364kB low:46704kB high:56044kB active_anon:507828kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:7776kB pagetables:5920kB bounce:0kB free_pcp:644kB local_pcp:396kB 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: 0*4kB 0*8kB 2*16kB (UM) 3*32kB (UM) 3*64kB (M) 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 1*2048kB (U) 4*4096kB (M) = 25152kB
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
Node 0 Normal: 562*4kB (ME) 589*8kB (UME) 252*16kB (MH) 1*32kB (H) 1*64kB (H) 2*128kB (UH) 2*256kB (UH) 2*512kB (UH) 1*1024kB (H) 0*2048kB 0*4096kB = 13904kB
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
296 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
kthread+0x35a/0x440 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
CPU: 1 PID: 6027 Comm: syz-fuzzer Not tainted 4.20.0-rc1-next-20181109+ #110
ksoftirqd/0: 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
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
ksoftirqd/0 cpuset=/ mems_allowed=0
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
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
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 b1 2d fc f9 48 83 3d a9 28 8b 01 00 0f 84 63 fe ff ff e8 9e d5 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 8b d5 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0000:ffff8801b2bae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801c1f40700 RBX: 1ffffffff12a3f76 RCX: 1ffff100383e81fe
RDX: 0000000000000000 RSI: ffffffff87c6d312 RDI: 0000000000000293
RBP: ffff8801b2bae290 R08: ffff8801c1f40ff0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801c1f40700 R12: 1ffff10036575c45
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
out_of_memory+0xa7f/0x1430 mm/oom_kill.c:1120
__alloc_pages_may_oom mm/page_alloc.c:3515 [inline]
__alloc_pages_slowpath+0x236a/0x2e30 mm/page_alloc.c:4236
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x3ce/0x570 mm/filemap.c:924
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:6292
__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+0x5d6/0xe40 arch/x86/mm/fault.c:1489
do_page_fault+0xed/0x7d1 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c420024ea0 EFLAGS: 00010202
RAX: ffffffffffffff92 RBX: 000000003b94b068 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
RBP: 000000c420024ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000202 R12: 0000000000000001
R13: 000000000000001f R14: 0000000000b81d20 R15: 000000000000a6f6
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1-next-20181109+ #110
Mem-Info:
active_anon:129018 inactive_anon:195 isolated_anon:0
active_file:12 inactive_file:15 isolated_file:0
unevictable:1 dirty:0 writeback:0 unstable:0
slab_reclaimable:8796 slab_unreclaimable:1376794
mapped:49154 shmem:268 pagetables:1480 bounce:0
free:13741 free_pcp:161 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:516072kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1072kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 143360kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:25152kB min:30052kB low:37564kB high:45076kB active_anon:8244kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13904kB min:37364kB low:46704kB high:56044kB active_anon:507828kB inactive_anon:780kB active_file:48kB inactive_file:60kB unevictable:4kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:7776kB pagetables:5920kB bounce:0kB free_pcp:644kB local_pcp:396kB 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: 0*4kB 0*8kB 2*16kB (UM) 3*32kB (UM) 3*64kB (M) 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 1*2048kB (U) 4*4096kB (M) = 25152kB
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
Node 0 Normal: 562*4kB (ME) 589*8kB (UME) 252*16kB (MH) 1*32kB (H) 1*64kB (H) 2*128kB (UH) 2*256kB (UH) 2*512kB (UH) 1*1024kB (H) 0*2048kB 0*4096kB = 13904kB
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
296 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654
smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
kthread+0x35a/0x440 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
CPU: 1 PID: 6027 Comm: syz-fuzzer Not tainted 4.20.0-rc1-next-20181109+ #110
ksoftirqd/0: 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
ksoftirqd/0 cpuset=/ mems_allowed=0
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3419
__alloc_pages_slowpath+0x26fe/0x2e30 mm/page_alloc.c:4298
__alloc_pages_nodemask+0xa7b/0xdd0 mm/page_alloc.c:4391
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x114/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
call_timer_fn+0x26d/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e0/0xc60 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 b1 2d fc f9 48 83 3d a9 28 8b 01 00 0f 84 63 fe ff ff e8 9e d5 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 8b d5 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0000:ffff8801b2bae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801c1f40700 RBX: 1ffffffff12a3f76 RCX: 1ffff100383e81fe
RDX: 0000000000000000 RSI: ffffffff87c6d312 RDI: 0000000000000293
RBP: ffff8801b2bae290 R08: ffff8801c1f40ff0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801c1f40700 R12: 1ffff10036575c45
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
dump_header+0x27b/0xf72 mm/oom_kill.c:441
oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
out_of_memory+0xa7f/0x1430 mm/oom_kill.c:1120
__alloc_pages_may_oom mm/page_alloc.c:3515 [inline]
__alloc_pages_slowpath+0x236a/0x2e30 mm/page_alloc.c:4236