run_ksoftirqd+0x94/0x100 kernel/softirq.c:653
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
CPU: 0 PID: 5336 Comm: syz-fuzzer Not tainted 4.19.0-rc5+ #109
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:
 <IRQ>
rcu: 	
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
(detected by 1, t=10531 jiffies, g=13813, q=4)
rcu: All QSes seen, last rcu_preempt kthread activity 10531 (4294967036-4294956505), jiffies_till_next_fqs=1, root ->qsmask 0x0
ksoftirqd/1     R
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
  running task    
15032    18      2 0x80000008
Call Trace:
 <IRQ>
 sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3276 [inline]
 rcu_pending kernel/rcu/tree.c:3319 [inline]
 rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 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
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3820
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1054
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline]
RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642
Code: 40 7e 0f 85 32 ff ff ff e8 05 b4 3e ff e9 28 ff ff ff e8 5c f7 c2 ff 48 83 3d 3c 28 70 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 5a f1
RSP: 0018:ffff8801d9b57410 EFLAGS: 00000286
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b367dac
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801d9b57480 R08: ffff8801d9b3ed60 R09: 0000000000000002
R10: 0000000000000000 R11: ffff8801d9b3e4c0 R12: ffff8801d9bd5800
R13: ffff8801d9bd5800 R14: 0000000000000000 R15: 0000000000000286
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 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:3820
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 57 2c a5 f9 e8 82 7a d4 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d 64 ab 81 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 3a ab
RSP: 0000:ffff8801d9506150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e43 RBX: 0000000000000000 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d973adfc
RBP: ffff8801d9506178 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: dffffc0000000000
R13: fffffbfff1263e42 R14: ffffffff8931f218 R15: ffffffff8931f210
 retint_kernel+0x1b/0x2d
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 f9 22 18 fa 48 83 3d d9 d2 87 01 00 75 07 e8 4a 96 d4 f9 0f 0b e8 43 96 d4 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 ad 22 18 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801d9506238 EFLAGS: 00000293
 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d973a580 RBX: 0000000000000293 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: ffffffff87aa1f3d RDI: 0000000000000293
RBP: ffff8801d9506240 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff8931f200
 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
rcu: rcu_preempt kthread starved for 10531 jiffies! g13813 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R
  running task    
23064    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2825 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 schedule+0xfe/0x460 kernel/sched/core.c:3517
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 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:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=
/
 mems_allowed=0
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x40f9c0
Code: Bad RIP value.
RSP: 002b:000000c420024ef8 EFLAGS: 00010216
RAX: ffffffffffffff92 RBX: 000000003b987d3a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd980
RBP: 000000c420024f20 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000206 R12: 0000000000000001
R13: 000000000000003e R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109
Mem-Info:
active_anon:52463 inactive_anon:480 isolated_anon:0
 active_file:17 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8924 slab_unreclaimable:1474805
 mapped:40962 shmem:4215 pagetables:583 bounce:0
 free:13712 free_pcp:230 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:209852kB inactive_anon:1920kB active_file:68kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16860kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]:
 0
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 2819 6323
 6323
Node 0 
DMA32 free:25088kB min:30060kB low:37572kB high:45084kB active_anon:32768kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
lowmem_reserve[]:
 0
 0
 3503
 3503
Node 0 
Normal free:13852kB min:37352kB low:46688kB high:56024kB active_anon:177084kB inactive_anon:1920kB active_file:68kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5184kB pagetables:2332kB bounce:0kB free_pcp:672kB local_pcp:408kB free_cma:0kB
lowmem_reserve[]: 0
 0
 0 0
Node 0 
DMA: 1*4kB 
(U) 
0*8kB 
0*16kB 
1*32kB (U) 
2*64kB 
(U) 1*128kB (U) 
1*256kB 
(U) 
0*512kB 
1*1024kB 
(U) 
1*2048kB (M) 
3*4096kB (M) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
= 15908kB
Node 0 
DMA32: 
4*4kB 
(M) 
0*8kB 3*16kB 
(UM) 
2*32kB 
(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+0x91/0x8c0 mm/slab.c:2677
4*64kB 
(M) 3*128kB 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
(M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
3*256kB 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
(M) 
4*512kB (UM) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*1024kB 
(UM) 
1*2048kB 
(M) 
4*4096kB (M) 
= 25088kB
Node 0 
Normal: 1199*4kB 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(UME) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
470*8kB (ME) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3820
187*16kB (ME) 
63*32kB (UME) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
3*64kB 
(UM) 1*128kB 
(M) 0*256kB 
0*512kB 0*1024kB 
0*2048kB 
0*4096kB 
= 13884kB
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
4247 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
342307 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
 mems_allowed=0
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
CPU: 0 PID: 5336 Comm: syz-fuzzer Not tainted 4.19.0-rc5+ #109
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:
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 <IRQ>
ksoftirqd/1 cpuset=
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
/
 mems_allowed=0
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 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:3820
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 57 2c a5 f9 e8 82 7a d4 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d 64 ab 81 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 3a ab
RSP: 0000:ffff8801d9506150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e43 RBX: 0000000000000000 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d973adfc
RBP: ffff8801d9506178 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: dffffc0000000000
R13: fffffbfff1263e42 R14: ffffffff8931f218 R15: ffffffff8931f210
 retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 f9 22 18 fa 48 83 3d d9 d2 87 01 00 75 07 e8 4a 96 d4 f9 0f 0b e8 43 96 d4 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 ad 22 18 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801d9506238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d973a580 RBX: 0000000000000293 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: ffffffff87aa1f3d RDI: 0000000000000293
RBP: ffff8801d9506240 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff8931f200
 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 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:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x40f9c0
Code: Bad RIP value.
RSP: 002b:000000c420024ef8 EFLAGS: 00010216
RAX: ffffffffffffff92 RBX: 000000003b987d3a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd980
RBP: 000000c420024f20 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000206 R12: 0000000000000001
R13: 000000000000003e R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109
Mem-Info:
active_anon:52463 inactive_anon:480 isolated_anon:0
 active_file:17 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8924 slab_unreclaimable:1474805
 mapped:40962 shmem:4215 pagetables:583 bounce:0
 free:13712 free_pcp:230 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:209852kB inactive_anon:1920kB active_file:68kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16860kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 2819 6323
 6323
Node 0 
DMA32 free:25088kB min:30060kB low:37572kB high:45084kB active_anon:32768kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]: 0
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 0
 3503
 3503
Node 0 
Normal free:13852kB min:37352kB low:46688kB high:56024kB active_anon:177084kB inactive_anon:1920kB active_file:68kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5184kB pagetables:2332kB bounce:0kB free_pcp:672kB local_pcp:408kB free_cma:0kB
lowmem_reserve[]:
 0
 0
 0
 0
Node 0 
DMA: 
1*4kB 
(U) 
0*8kB 0*16kB 
1*32kB 
(U) 
2*64kB 
(U) 1*128kB 
(U) 1*256kB 
(U) 
0*512kB 
1*1024kB (U) 
1*2048kB (M) 
3*4096kB (M) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
= 15908kB
Node 0 
DMA32: 4*4kB 
(M) 
0*8kB 
3*16kB 
(UM) 
2*32kB (M) 
4*64kB 
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
(M) 3*128kB 
(M) 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
3*256kB 
 ____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
4*512kB 
(UM) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*1024kB (UM) 
1*2048kB 
(M) 4*4096kB 
(M) 
= 25088kB
Node 0 
Normal: 1199*4kB 
(UME) 
470*8kB 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(ME) 187*16kB 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
(ME) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3820
63*32kB 
(UME) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
3*64kB (UM) 
1*128kB 
(M) 
0*256kB 
0*512kB 
0*1024kB 0*2048kB 
0*4096kB = 13884kB
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
4247 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
342307 pages reserved
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
 mems_allowed=0
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
CPU: 0 PID: 5336 Comm: syz-fuzzer Not tainted 4.19.0-rc5+ #109
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:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
ksoftirqd/1 cpuset=
/
 mems_allowed=0
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 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:3820
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 57 2c a5 f9 e8 82 7a d4 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d 64 ab 81 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 3a ab
RSP: 0000:ffff8801d9506150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e43 RBX: 0000000000000000 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d973adfc
RBP: ffff8801d9506178 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: dffffc0000000000
R13: fffffbfff1263e42 R14: ffffffff8931f218 R15: ffffffff8931f210
 retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 f9 22 18 fa 48 83 3d d9 d2 87 01 00 75 07 e8 4a 96 d4 f9 0f 0b e8 43 96 d4 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 ad 22 18 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801d9506238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d973a580 RBX: 0000000000000293 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: ffffffff87aa1f3d RDI: 0000000000000293
RBP: ffff8801d9506240 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff8931f200
 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 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:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x40f9c0
Code: Bad RIP value.
RSP: 002b:000000c420024ef8 EFLAGS: 00010216
RAX: ffffffffffffff92 RBX: 000000003b987d3a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd980
RBP: 000000c420024f20 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000206 R12: 0000000000000001
R13: 000000000000003e R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109
Mem-Info:
active_anon:52463 inactive_anon:480 isolated_anon:0
 active_file:17 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8924 slab_unreclaimable:1474805
 mapped:40962 shmem:4215 pagetables:583 bounce:0
 free:13712 free_pcp:230 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:209852kB inactive_anon:1920kB active_file:68kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16860kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
Node 0 
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
lowmem_reserve[]: 0
 2819
 6323
 6323
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
Node 0 
DMA32 free:25088kB min:30060kB low:37572kB high:45084kB active_anon:32768kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
lowmem_reserve[]:
 0 0 3503
 3503
Node 0 
Normal free:13852kB min:37352kB low:46688kB high:56024kB active_anon:177084kB inactive_anon:1920kB active_file:68kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5184kB pagetables:2332kB bounce:0kB free_pcp:672kB local_pcp:408kB free_cma:0kB
lowmem_reserve[]: 0
 0
 0
 0
Node 0 
DMA: 
1*4kB 
(U) 
0*8kB 0*16kB 
1*32kB 
(U) 
2*64kB 
(U) 
1*128kB 
(U) 
1*256kB 
(U) 
0*512kB 
1*1024kB 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(U) 1*2048kB (M) 
3*4096kB (M) 
= 15908kB
Node 0 
DMA32: 4*4kB 
(M) 
0*8kB 
3*16kB 
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
(UM) 
2*32kB 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
(M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
4*64kB (M) 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
3*128kB 
(M) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*256kB 
(M) 
4*512kB 
(UM) 
3*1024kB 
(UM) 1*2048kB 
(M) 
4*4096kB 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(M) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
= 25088kB
Node 0 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3820
Normal: 
1199*4kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UME) 
470*8kB 
(ME) 
187*16kB 
(ME) 
63*32kB (UME) 
3*64kB (UM) 
1*128kB 
(M) 
0*256kB 0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 13884kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
4247 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
342307 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
 mems_allowed=0
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
CPU: 0 PID: 5336 Comm: syz-fuzzer Not tainted 4.19.0-rc5+ #109
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:
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 <IRQ>
ksoftirqd/1 cpuset=
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
/
 mems_allowed=0
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 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:3820
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline]
RIP: 0010:preempt_schedule_irq+0x7d/0x110 kernel/sched/core.c:3699
Code: 00 e8 57 2c a5 f9 e8 82 7a d4 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 7b 48 83 3d 64 ab 81 01 00 74 61 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 f9 d1 ff ff 41 80 7d 00 00 75 6a 48 83 3d 3a ab
RSP: 0000:ffff8801d9506150 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1263e43 RBX: 0000000000000000 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d973adfc
RBP: ffff8801d9506178 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: dffffc0000000000
R13: fffffbfff1263e42 R14: ffffffff8931f218 R15: ffffffff8931f210
 retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 f9 22 18 fa 48 83 3d d9 d2 87 01 00 75 07 e8 4a 96 d4 f9 0f 0b e8 43 96 d4 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 ad 22 18 fa 4c 8b 45 d0 e9
RSP: 0000:ffff8801d9506238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffff8801d973a580 RBX: 0000000000000293 RCX: 1ffff1003b2e75ce
RDX: 0000000000000000 RSI: ffffffff87aa1f3d RDI: 0000000000000293
RBP: ffff8801d9506240 R08: ffff8801d973ae70 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d973a580 R12: 0000000000000293
R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff8931f200
 dump_stack+0x26a/0x2b4 lib/dump_stack.c:118
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 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:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x40f9c0
Code: Bad RIP value.
RSP: 002b:000000c420024ef8 EFLAGS: 00010216
RAX: ffffffffffffff92 RBX: 000000003b987d3a RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd980
RBP: 000000c420024f20 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420024ed8 R11: 0000000000000206 R12: 0000000000000001
R13: 000000000000003e R14: 000000000045b6a0 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc5+ #109
Mem-Info:
active_anon:52463 inactive_anon:480 isolated_anon:0
 active_file:17 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8924 slab_unreclaimable:1474805
 mapped:40962 shmem:4215 pagetables:583 bounce:0
 free:13712 free_pcp:230 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:209852kB inactive_anon:1920kB active_file:68kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16860kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 2819 6323
 6323
Node 0