RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011 RBP: 000000c420037f18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 000000c42b273180 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #135 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+0x244/0x39d lib/dump_stack.c:113 rcu: 1-...!: (81 ticks this GP) idle=48e/1/0x4000000000000000 softirq=13889/13889 fqs=0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 rcu: (detected by 0, t=10603 jiffies, g=15009, q=8) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #135 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x50 kernel/kcov.c:97 Code: d0 72 1b 49 83 c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 <65> 48 8b 04 25 40 ee 01 00 65 8b 15 e8 cb 83 7e 81 e2 00 01 1f 00 RSP: 0000:ffff8801d9b461a0 EFLAGS: 00000006 RAX: ffff8801d9b3c440 RBX: ffffffffffffffff RCX: ffffffff87c180ea RDX: 0000000000000100 RSI: ffffffff87c18078 RDI: 0000000000000005 RBP: ffff8801d9b461a0 R08: ffff8801d9b3c440 R09: fffffbfff1611e2c R10: fffffbfff1611e2c R11: ffffffff8b08f160 R12: ffffffff8b08f165 R13: ffff8801d9b46268 R14: 0000000000000000 R15: ffffffff8b08f163 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045db60 CR3: 00000001cd3d9000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: number+0x858/0xca0 lib/vsprintf.c:520 vsnprintf+0x13d0/0x1b60 lib/vsprintf.c:2359 sprintf+0xb0/0xe0 lib/vsprintf.c:2495 print_time kernel/printk/printk.c:1224 [inline] print_prefix+0x26a/0x3f0 kernel/printk/printk.c:1247 msg_print_text+0xcc/0x1d0 kernel/printk/printk.c:1274 console_unlock+0x4d3/0x1160 kernel/printk/printk.c:2379 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1996 printk_stack_address arch/x86/kernel/dumpstack.c:71 [inline] show_trace_log_lvl+0x23a/0x28c arch/x86/kernel/dumpstack.c:258 show_stack+0x38/0x3a arch/x86/kernel/dumpstack.c:293 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 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:350 rcu: rcu_preempt kthread starved for 10603 jiffies! g15009 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 22696 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474 schedule+0xfe/0x460 kernel/sched/core.c:3518 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 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/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-fuzzer cpuset= __do_softirq+0x308/0xb7e kernel/softirq.c:292 / mems_allowed=0 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 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:350 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5453 Comm: syz-fuzzer Not tainted 4.19.0+ #135 Mem-Info: active_anon:52143 inactive_anon:223 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9021 slab_unreclaimable:1469904 mapped:32770 shmem:230 pagetables:542 bounce:0 free:13739 free_pcp:473 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131080kB dirty:0kB writeback:0kB shmem:920kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 2818 6321 6321 Node 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 DMA32 free:25112kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:444kB local_pcp:196kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13936kB min:37364kB low:46704kB high:56044kB active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5312kB pagetables:2168kB bounce:0kB free_pcp:1448kB local_pcp:644kB 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) __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 3*4096kB (M) = 15908kB fallback_alloc+0x204/0x2e0 mm/slab.c:3219 Node 0 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 DMA32: slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 4*4kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 1*8kB (U) 2*16kB (M) 1*32kB (M) 3*64kB (M) 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 4*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 (UM) 3*2048kB (UM) br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 3*4096kB (M) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 = 25112kB Node 0 Normal: 796*4kB (MEH) 368*8kB (UME) 160*16kB (UME) 74*32kB (UME) 1*64kB (H) 2*128kB (UH) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 2*256kB (UH) 0*512kB 2*1024kB (UH) 0*2048kB 0*4096kB = 13936kB 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 255 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 Total swap = 0kB 1965979 pages RAM __do_softirq+0x308/0xb7e kernel/softirq.c:292 0 pages HighMem/MovableOnly 342867 pages reserved 0 pages cma reserved INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.095 msecs ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset= / mems_allowed=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:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884 Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d ac 82 f2 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4 RSP: 0000:ffff8801b9dce010 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000000000 RDX: 1ffffffff12a3e8e RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801b9dce030 R08: ffff8801d7636380 R09: ffffed003b5c5b57 R10: ffffed003b5c5b57 R11: ffff8801dae2dabb R12: ffff8801d7636380 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff lock_is_held include/linux/lockdep.h:339 [inline] rcu_read_lock_held+0xa9/0xc0 kernel/rcu/update.c:281 list_lru_from_memcg_idx mm/list_lru.c:55 [inline] list_lru_count_one+0x31a/0x450 mm/list_lru.c:194 list_lru_shrink_count include/linux/list_lru.h:122 [inline] super_cache_count+0x153/0x2e0 fs/super.c:144 do_shrink_slab+0x1a7/0xd20 mm/vmscan.c:464 shrink_slab+0x389/0x8c0 mm/vmscan.c:696 shrink_node+0x431/0x16b0 mm/vmscan.c:2745 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x45db60 Code: Bad RIP value. RSP: 002b:000000c420047ab8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3 RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011 RBP: 000000c420037f18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 000000c42b273180 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #135 syz-fuzzer: 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-fuzzer cpuset= Call Trace: / __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 mems_allowed=0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 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:350 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5453 Comm: syz-fuzzer Not tainted 4.19.0+ #135 Mem-Info: active_anon:52143 inactive_anon:223 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9021 slab_unreclaimable:1469904 mapped:32770 shmem:230 pagetables:542 bounce:0 free:13739 free_pcp:473 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131080kB dirty:0kB writeback:0kB shmem:920kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB 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 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 6321 6321 Node 0 DMA32 free:25112kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:444kB local_pcp:196kB free_cma:0kB __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13936kB min:37364kB low:46704kB high:56044kB active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5312kB pagetables:2168kB bounce:0kB free_pcp:1448kB local_pcp:644kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (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+0xa5/0x8c0 mm/slab.c:2677 1*2048kB (M) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 3*4096kB ____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 = 15908kB Node 0 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 DMA32: 4*4kB (M) 1*8kB (U) 2*16kB (M) 1*32kB alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 (M) 3*64kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (M) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 4*128kB (M) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25112kB Node 0 Normal: expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 796*4kB (MEH) 368*8kB (UME) 160*16kB (UME) 74*32kB (UME) 1*64kB (H) 2*128kB (UH) 2*256kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 (UH) 0*512kB 2*1024kB __do_softirq+0x308/0xb7e kernel/softirq.c:292 (UH) 0*2048kB 0*4096kB = 13936kB 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 255 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 Total swap = 0kB exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 1965979 pages RAM 0 pages HighMem/MovableOnly 342867 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset= / mems_allowed=0 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884 Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d ac 82 f2 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4 RSP: 0000:ffff8801b9dce010 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000000000 RDX: 1ffffffff12a3e8e RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801b9dce030 R08: ffff8801d7636380 R09: ffffed003b5c5b57 R10: ffffed003b5c5b57 R11: ffff8801dae2dabb R12: ffff8801d7636380 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff lock_is_held include/linux/lockdep.h:339 [inline] rcu_read_lock_held+0xa9/0xc0 kernel/rcu/update.c:281 list_lru_from_memcg_idx mm/list_lru.c:55 [inline] list_lru_count_one+0x31a/0x450 mm/list_lru.c:194 list_lru_shrink_count include/linux/list_lru.h:122 [inline] super_cache_count+0x153/0x2e0 fs/super.c:144 do_shrink_slab+0x1a7/0xd20 mm/vmscan.c:464 shrink_slab+0x389/0x8c0 mm/vmscan.c:696 shrink_node+0x431/0x16b0 mm/vmscan.c:2745 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x45db60 Code: Bad RIP value. RSP: 002b:000000c420047ab8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3 RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011 RBP: 000000c420037f18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 000000c42b273180 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #135 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 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 syz-fuzzer cpuset=/ mems_allowed=0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 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:350 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5453 Comm: syz-fuzzer Not tainted 4.19.0+ #135 Mem-Info: active_anon:52143 inactive_anon:223 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9021 slab_unreclaimable:1469904 mapped:32770 shmem:230 pagetables:542 bounce:0 free:13739 free_pcp:473 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131080kB dirty:0kB writeback:0kB shmem:920kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 2818 6321 6321 Node 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 DMA32 free:25112kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:444kB local_pcp:196kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13936kB min:37364kB low:46704kB high:56044kB active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5312kB pagetables:2168kB bounce:0kB free_pcp:1448kB local_pcp:644kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) __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 = 15908kB Node 0 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 DMA32: ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*4kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 1*8kB (U) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 2*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 3*256kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (M) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 4*512kB (UM) 3*1024kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (UM) 3*2048kB (UM) 3*4096kB (M) = 25112kB Node 0 Normal: 796*4kB (MEH) 368*8kB (UME) 160*16kB (UME) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 74*32kB (UME) 1*64kB (H) 2*128kB (UH) 2*256kB (UH) 0*512kB 2*1024kB (UH) 0*2048kB 0*4096kB = 13936kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 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 __do_softirq+0x308/0xb7e kernel/softirq.c:292 255 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 342867 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 ksoftirqd/1 cpuset= exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 / mems_allowed=0 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884 Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d ac 82 f2 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4 RSP: 0000:ffff8801b9dce010 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000000000 RDX: 1ffffffff12a3e8e RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801b9dce030 R08: ffff8801d7636380 R09: ffffed003b5c5b57 R10: ffffed003b5c5b57 R11: ffff8801dae2dabb R12: ffff8801d7636380 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff lock_is_held include/linux/lockdep.h:339 [inline] rcu_read_lock_held+0xa9/0xc0 kernel/rcu/update.c:281 list_lru_from_memcg_idx mm/list_lru.c:55 [inline] list_lru_count_one+0x31a/0x450 mm/list_lru.c:194 list_lru_shrink_count include/linux/list_lru.h:122 [inline] super_cache_count+0x153/0x2e0 fs/super.c:144 do_shrink_slab+0x1a7/0xd20 mm/vmscan.c:464 shrink_slab+0x389/0x8c0 mm/vmscan.c:696 shrink_node+0x431/0x16b0 mm/vmscan.c:2745 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x45db60 Code: Bad RIP value. RSP: 002b:000000c420047ab8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3 RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011 RBP: 000000c420037f18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 000000c42b273180 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #135 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 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 syz-fuzzer cpuset= / mems_allowed=0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 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:350 CPU: 0 PID: 5453 Comm: syz-fuzzer Not tainted 4.19.0+ #135 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:52143 inactive_anon:223 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9021 slab_unreclaimable:1469904 mapped:32770 shmem:230 pagetables:542 bounce:0 free:13739 free_pcp:473 free_cma:0 Call Trace: Node 0 active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131080kB dirty:0kB writeback:0kB shmem:920kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d 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.117+0xb7/0x1bd mm/page_alloc.c:3426 0 2818 6321 6321 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 Node 0 DMA32 free:25112kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:444kB local_pcp:196kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13936kB min:37364kB low:46704kB high:56044kB active_anon:208572kB inactive_anon:892kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5312kB pagetables:2168kB bounce:0kB free_pcp:1448kB local_pcp:644kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 (M) = 15908kB fallback_alloc+0x204/0x2e0 mm/slab.c:3219 Node 0 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 DMA32: slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 4*4kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 1*8kB (U) 2*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 3*256kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (M) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 4*512kB (UM) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25112kB Node 0 Normal: 796*4kB (MEH) 368*8kB (UME) 160*16kB (UME) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 74*32kB (UME) 1*64kB (H) 2*128kB (UH) 2*256kB (UH) 0*512kB 2*1024kB (UH) 0*2048kB 0*4096kB = 13936kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 255 total pagecache pages __do_softirq+0x308/0xb7e kernel/softirq.c:292 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342867 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset= 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 mems_allowed=0 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884 Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d ac 82 f2 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4 RSP: 0000:ffff8801b9dce010 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000000000 RDX: 1ffffffff12a3e8e RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801b9dce030 R08: ffff8801d7636380 R09: ffffed003b5c5b57 R10: ffffed003b5c5b57 R11: ffff8801dae2dabb R12: ffff8801d7636380 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff lock_is_held include/linux/lockdep.h:339 [inline] rcu_read_lock_held+0xa9/0xc0 kernel/rcu/update.c:281 list_lru_from_memcg_idx mm/list_lru.c:55 [inline] list_lru_count_one+0x31a/0x450 mm/list_lru.c:194 list_lru_shrink_count include/linux/list_lru.h:122 [inline] super_cache_count+0x153/0x2e0 fs/super.c:144 do_shrink_slab+0x1a7/0xd20 mm/vmscan.c:464 shrink_slab+0x389/0x8c0 mm/vmscan.c:696 shrink_node+0x431/0x16b0 mm/vmscan.c:2745 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860