RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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:
rcu: 	(detected by 1, t=10502 jiffies, g=361853, q=31)
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
rcu: All QSes seen, last rcu_preempt kthread activity 10264 (4295143838-4295133574), jiffies_till_next_fqs=1, root ->qsmask 0x0
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
in:imklog       R  running task    26184  7846      1 0x8000000a
Call Trace:
 <IRQ>
 sched_show_task.cold+0x332/0x396 kernel/sched/core.c:5337
 print_other_cpu_stall kernel/rcu/tree.c:1430 [inline]
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0xb37/0xe19 kernel/rcu/tree.c:2682
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 update_process_times+0x2a/0x70 kernel/time/timer.c:1650
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168
 tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278
 __run_hrtimer kernel/time/hrtimer.c:1465 [inline]
 __hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1527
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1585
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
 smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3334 [inline]
RIP: 0010:kmem_cache_alloc_node+0x2ee/0x3b0 mm/slab.c:3647
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
Code: fe ff ff 48 f7 04 24 00 02 00 00 0f 84 1f fe ff ff e8 86 9e cf ff 48 83 3d c6 77 59 08 00 0f 84 aa 00 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 e9 1a fe ff ff 65 ff 05 71 d4 69 7e 48 8b 05 e2 f0
RSP: 0000:ffff8880ba107b68 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
RAX: 0000000000000007 RBX: 0000000000480020 RCX: 1ffff11011ed89dc
RDX: 0000000000000000 RSI: ffff88808f6c4ec0 RDI: 0000000000000286
RBP: ffff8880b5b91d80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff
R13: 0000000000000000 R14: 0000000000480020 R15: ffff8880b5b91d80
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __do_softirq+0x265/0x980 kernel/softirq.c:292
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
lowmem_reserve[]: 0 2693 2695 2695 2695
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
 </IRQ>
lowmem_reserve[]: 0 0 1 1 1
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
lowmem_reserve[]: 0 0 0 0 0
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
lowmem_reserve[]: 0 0 0 0 0
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
28277 total pagecache pages
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
369649 pages reserved
0 pages cma reserved
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
ksoftirqd/0 cpuset=/ mems_allowed=0-1
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
 __do_softirq+0x265/0x980 kernel/softirq.c:292
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
 kthread+0x33f/0x460 kernel/kthread.c:259
rcu: rcu_preempt kthread starved for 10264 jiffies! g361853 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
rcu_preempt     R  running task    29208    10      2 0x80000000
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
 schedule_timeout+0x4cf/0xfe0 kernel/time/timer.c:1818
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+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
 rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 kthread+0x33f/0x460 kernel/kthread.c:259
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
in:imklog cpuset=/ mems_allowed=0-1
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
lowmem_reserve[]: 0 2693 2695 2695 2695
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
28277 total pagecache pages
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
0 pages in swap cache
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
Swap cache stats: add 0, delete 0, find 0/0
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
Free swap  = 0kB
Total swap = 0kB
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
2097051 pages RAM
0 pages HighMem/MovableOnly
369649 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
in:imklog cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
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
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
28277 total pagecache pages
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
0 pages in swap cache
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
Swap cache stats: add 0, delete 0, find 0/0
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
Free swap  = 0kB
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
Total swap = 0kB
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
2097051 pages RAM
0 pages HighMem/MovableOnly
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
369649 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
in:imklog cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
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
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
28277 total pagecache pages
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
0 pages in swap cache
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
Swap cache stats: add 0, delete 0, find 0/0
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
Free swap  = 0kB
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
Total swap = 0kB
2097051 pages RAM
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
0 pages HighMem/MovableOnly
369649 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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:
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
in:imklog cpuset=/ mems_allowed=0-1
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
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
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
28277 total pagecache pages
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
0 pages in swap cache
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
Swap cache stats: add 0, delete 0, find 0/0
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
Free swap  = 0kB
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
Total swap = 0kB
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
2097051 pages RAM
0 pages HighMem/MovableOnly
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
369649 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
in:imklog cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
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
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
28277 total pagecache pages
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
0 pages in swap cache
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
Swap cache stats: add 0, delete 0, find 0/0
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
Free swap  = 0kB
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
Total swap = 0kB
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
2097051 pages RAM
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
0 pages HighMem/MovableOnly
369649 pages reserved
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
in:imklog cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
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
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
28277 total pagecache pages
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
0 pages in swap cache
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
Total swap = 0kB
2097051 pages RAM
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
0 pages HighMem/MovableOnly
369649 pages reserved
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
in:imklog cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
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
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
28277 total pagecache pages
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
0 pages in swap cache
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
Swap cache stats: add 0, delete 0, find 0/0
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
Free swap  = 0kB
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
Total swap = 0kB
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
2097051 pages RAM
0 pages HighMem/MovableOnly
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
369649 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
 shrink_zones mm/vmscan.c:2977 [inline]
 do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
 try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3800 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
 __alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 syslog_print kernel/printk/printk.c:1337 [inline]
 do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505
 do_syslog+0x49/0x60 kernel/printk/printk.c:1486
 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40
 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
 __vfs_read+0xf7/0x750 fs/read_write.c:416
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f32b454c22d
Code: Bad RIP value.
RSP: 002b:00007f32b1ee8580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b454c22d
RDX: 0000000000001fa0 RSI: 00007f32b1ee8da0 RDI: 0000000000000004
RBP: 00005630190519d0 R08: 0000000000000000 R09: 0000000000000000
R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f32b1ee8da0
R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f32b1ee8e20
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
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+0x1fc/0x2ef lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
in:imklog: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
in:imklog cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 7846 Comm: in:imklog Not tainted 4.19.211-syzkaller #0
Mem-Info:
active_anon:175849 inactive_anon:24736 isolated_anon:0
 active_file:13 inactive_file:13 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18482 slab_unreclaimable:1431264
 mapped:23476 shmem:28251 pagetables:984 bounce:0
 free:11077 free_pcp:541 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:93904kB dirty:0kB writeback:0kB shmem:113004kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 139264kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
Node 0 DMA free:10860kB min:204kB low:252kB high:300kB 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
 warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
lowmem_reserve[]: 0 2693 2695 2695 2695
Node 0 DMA32 free:13256kB min:35996kB low:44992kB high:53988kB active_anon:703396kB inactive_anon:98944kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:7680kB pagetables:3936kB bounce:0kB free_pcp:488kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20184kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1676kB local_pcp:248kB free_cma:0kB
 __alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
 __alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 7*4kB (U) 0*8kB 1*16kB (U) 0*32kB 1*64kB (U) 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10860kB
Node 0 DMA32: 1612*4kB (UME) 533*8kB (UMEH) 129*16kB (UME) 5*32kB (UMH) 1*64kB (H) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13256kB
Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
Node 1 Normal: 10*4kB (ME) 6*8kB (UME) 4*16kB (M) 4*32kB (UM) 3*64kB (ME) 0*128kB 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 4*4096kB (M) = 20184kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 __alloc_skb+0x71/0x560 net/core/skbuff.c:193
28277 total pagecache pages
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
0 pages in swap cache
 ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
Swap cache stats: add 0, delete 0, find 0/0
 addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
Free swap  = 0kB
Total swap = 0kB
 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
2097051 pages RAM
0 pages HighMem/MovableOnly
369649 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
ksoftirqd/0 cpuset=/ mems_allowed=0-1
 __run_timers kernel/time/timer.c:1696 [inline]
 run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x215/0x260 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13
RSP: 0000:ffff8880a16df210 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff88808f6c45c0 RBX: ffff8880af23e3c0 RCX: 1ffff11011ed89d8
RDX: 0000000000000000 RSI: ffffffff8189c311 RDI: ffff88808f6c4930
RBP: ffff8880b59f68c0 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389cca80
R13: ffff8880a16df358 R14: ffff8880a16df35c R15: ffff8880b59f68c0
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 list_lru_count_one+0x41/0x360 mm/list_lru.c:189
 list_lru_shrink_count include/linux/list_lru.h:123 [inline]
 super_cache_count+0x1b4/0x2e0 fs/super.c:145
 do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
 shrink_slab+0x16f/0x550 mm/vmscan.c:693
 shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	ff 48 f7             	decl   -0x9(%rax)
   3:	04 24                	add    $0x24,%al
   5:	00 02                	add    %al,(%rdx)
   7:	00 00                	add    %al,(%rax)
   9:	0f 84 1f fe ff ff    	je     0xfffffe2e
   f:	e8 86 9e cf ff       	callq  0xffcf9e9a
  14:	48 83 3d c6 77 59 08 	cmpq   $0x0,0x85977c6(%rip)        # 0x85977e2
  1b:	00
  1c:	0f 84 aa 00 00 00    	je     0xcc
  22:	48 8b 3c 24          	mov    (%rsp),%rdi
  26:	57                   	push   %rdi
  27:	9d                   	popfq
* 28:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1) <-- trapping instruction
  2d:	e9 1a fe ff ff       	jmpq   0xfffffe4c
  32:	65 ff 05 71 d4 69 7e 	incl   %gs:0x7e69d471(%rip)        # 0x7e69d4aa
  39:	48                   	rex.W
  3a:	8b                   	.byte 0x8b
  3b:	05                   	.byte 0x5
  3c:	e2 f0                	loop   0x2e