RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940 RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000200 R14: 0000000000000002 R15: ffffffffffffffff CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc8+ #133 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113 rcu: (detected by 1, t=10707 jiffies, g=8953, q=5) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 rcu: All QSes seen, last rcu_preempt kthread activity 10652 (4294964633-4294953981), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-fuzzer R running task 10920 5386 5382 0x80000008 Call Trace: __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296 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 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c: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 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: 41 7e 0f 85 32 ff ff ff e8 95 04 40 ff e9 28 ff ff ff e8 5c 3f c4 ff 48 83 3d cc 78 71 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 92 45 RSP: 0000:ffff8801daf07440 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003766e95b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801daf074b0 R08: ffff8801bb374ad8 R09: 0000000000000002 R10: 0000000000000000 R11: ffff8801bb3741c0 R12: ffff8801d9be7680 R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000286 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30c/0xb03 kernel/softirq.c:292 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 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 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:48252 inactive_anon:112 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8629 slab_unreclaimable:1476307 mapped:49154 shmem:119 pagetables:674 bounce:0 free:13778 free_pcp:148 free_cma:0 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 Node 0 active_anon:193008kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 180224kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2819 6323 6323 Node 0 DMA32 free:25196kB min:30060kB low:37572kB high:45084kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:344kB local_pcp:248kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 Node 0 __do_softirq+0x30c/0xb03 kernel/softirq.c:292 Normal free:14008kB min:37352kB low:46688kB high:56024kB active_anon:180720kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5120kB pagetables:2696kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 (U) exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 Node 0 DMA32: RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:101 3*4kB Code: 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 28 41 83 7e 81 e2 00 01 1f 00 75 2b <8b> 90 d0 12 00 00 83 fa 02 75 20 48 8b 88 d8 12 00 00 8b 80 d4 12 (M) RSP: 0000:ffff8801c160e2b0 EFLAGS: 00000246 2*8kB (UM) ORIG_RAX: ffffffffffffff13 3*16kB (UM) RAX: ffff8801bb3741c0 RBX: 0000000000000003 RCX: ffffffff81a7a964 3*32kB RDX: 0000000000000000 RSI: ffffffff81a7a96e RDI: 0000000000000007 (UM) RBP: ffff8801c160e2b0 R08: ffff8801bb3741c0 R09: 1ffffffff127395d 5*64kB R10: ffffed003b5e4732 R11: ffff8801daf23993 R12: ffff8801c160e428 (UM) R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001 3*128kB (M) 3*256kB (M) shrink_node_memcg+0x72e/0x18e0 mm/vmscan.c:2524 4*512kB (UM) 3*1024kB (UM) 1*2048kB (M) 4*4096kB shrink_node+0x3bc/0x16b0 mm/vmscan.c:2742 (M) = 25196kB Node 0 Normal: 1032*4kB (ME) 425*8kB (UME) 181*16kB (UME) 72*32kB (UME) shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 20*64kB (UM) 0*128kB 0*256kB 0*512kB try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 0*1024kB 0*2048kB 0*4096kB = 14008kB 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 144 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342306 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 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc8+ #133 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+0x1c4/0x2b6 lib/dump_stack.c:113 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 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 __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 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:3240 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 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 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 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 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30c/0xb03 kernel/softirq.c:292 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420023ea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b96c0fb RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940 RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000200 R14: 0000000000000002 R15: ffffffffffffffff run_ksoftirqd+0x94/0x100 kernel/softirq.c:653 rcu: rcu_preempt kthread starved for 10652 jiffies! g8953 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 22872 10 2 0x80000000 Call Trace: kthread+0x35a/0x420 kernel/kthread.c:246 context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 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 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc8+ #133 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: schedule+0xfe/0x460 kernel/sched/core.c:3517 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194 __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:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 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 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-fuzzer cpuset= / mems_allowed=0 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+0x30c/0xb03 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 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 5386 Comm: syz-fuzzer Not tainted 4.19.0-rc8+ #133 Mem-Info: active_anon:48252 inactive_anon:112 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8629 slab_unreclaimable:1476307 mapped:49154 shmem:119 pagetables:674 bounce:0 free:13778 free_pcp:148 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:193008kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 180224kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 2819 6323 6323 Node 0 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 DMA32 free:25196kB min:30060kB low:37572kB high:45084kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:344kB local_pcp:248kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:14008kB min:37352kB low:46688kB high:56024kB active_anon:180720kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5120kB pagetables:2696kB bounce:0kB free_pcp:248kB local_pcp:0kB 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: __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 3*4kB (M) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 2*8kB (UM) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 3*16kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (UM) 3*32kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 5*64kB (UM) 3*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 (UM) ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 1*2048kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (M) 4*4096kB (M) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 = 25196kB Node 0 Normal: 1032*4kB (ME) 425*8kB (UME) 181*16kB (UME) 72*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0*2048kB 0*4096kB = 14008kB 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 144 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 342306 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) run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 ksoftirqd/0 cpuset= / __do_softirq+0x30c/0xb03 kernel/softirq.c:292 mems_allowed=0 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 RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:101 Code: 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 28 41 83 7e 81 e2 00 01 1f 00 75 2b <8b> 90 d0 12 00 00 83 fa 02 75 20 48 8b 88 d8 12 00 00 8b 80 d4 12 RSP: 0000:ffff8801c160e2b0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bb3741c0 RBX: 0000000000000003 RCX: ffffffff81a7a964 RDX: 0000000000000000 RSI: ffffffff81a7a96e RDI: 0000000000000007 RBP: ffff8801c160e2b0 R08: ffff8801bb3741c0 R09: 1ffffffff127395d R10: ffffed003b5e4732 R11: ffff8801daf23993 R12: ffff8801c160e428 R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001 shrink_node_memcg+0x72e/0x18e0 mm/vmscan.c:2524 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2742 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420023ea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b96c0fb RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940 RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000200 R14: 0000000000000002 R15: ffffffffffffffff CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc8+ #133 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+0x1c4/0x2b6 lib/dump_stack.c:113 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-fuzzer cpuset= / mems_allowed=0 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+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:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30c/0xb03 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 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 5386 Comm: syz-fuzzer Not tainted 4.19.0-rc8+ #133 Mem-Info: active_anon:48252 inactive_anon:112 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8629 slab_unreclaimable:1476307 mapped:49154 shmem:119 pagetables:674 bounce:0 free:13778 free_pcp:148 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:193008kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 180224kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113 0 2819 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 6323 6323 Node 0 DMA32 free:25196kB min:30060kB low:37572kB high:45084kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:344kB local_pcp:248kB free_cma:0kB __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:14008kB min:37352kB low:46688kB high:56024kB active_anon:180720kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5120kB pagetables:2696kB bounce:0kB free_pcp:248kB local_pcp:0kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) 2*8kB __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) 3*16kB (UM) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 3*32kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (UM) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 5*64kB (UM) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 3*128kB (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 1*2048kB (M) ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 4*4096kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (M) = 25196kB Node 0 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 Normal: 1032*4kB (ME) 425*8kB (UME) 181*16kB (UME) 72*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14008kB 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=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 144 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 342306 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= run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 / mems_allowed=0 __do_softirq+0x30c/0xb03 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 RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:101 Code: 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 28 41 83 7e 81 e2 00 01 1f 00 75 2b <8b> 90 d0 12 00 00 83 fa 02 75 20 48 8b 88 d8 12 00 00 8b 80 d4 12 RSP: 0000:ffff8801c160e2b0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bb3741c0 RBX: 0000000000000003 RCX: ffffffff81a7a964 RDX: 0000000000000000 RSI: ffffffff81a7a96e RDI: 0000000000000007 RBP: ffff8801c160e2b0 R08: ffff8801bb3741c0 R09: 1ffffffff127395d R10: ffffed003b5e4732 R11: ffff8801daf23993 R12: ffff8801c160e428 R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001 shrink_node_memcg+0x72e/0x18e0 mm/vmscan.c:2524 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2742 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420023ea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b96c0fb RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd940 RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000200 R14: 0000000000000002 R15: ffffffffffffffff CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.0-rc8+ #133 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+0x1c4/0x2b6 lib/dump_stack.c:113 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-fuzzer cpuset= / mems_allowed=0 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+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:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30c/0xb03 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: 1 PID: 5386 Comm: syz-fuzzer Not tainted 4.19.0-rc8+ #133 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:48252 inactive_anon:112 isolated_anon:0 active_file:12 inactive_file:13 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8629 slab_unreclaimable:1476307 mapped:49154 shmem:119 pagetables:674 bounce:0 free:13778 free_pcp:148 free_cma:0 Call Trace: Node 0 active_anon:193008kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 180224kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 0 2819 6323 6323 __alloc_pages_slowpath+0x265e/0x2d70 mm/page_alloc.c:4297 Node 0 DMA32 free:25196kB min:30060kB low:37572kB high:45084kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:344kB local_pcp:248kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:14008kB min:37352kB low:46688kB high:56024kB active_anon:180720kB inactive_anon:448kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5120kB pagetables:2696kB bounce:0kB free_pcp:248kB local_pcp:0kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 3*16kB (UM) __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 3*32kB (UM) 5*64kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (UM) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 3*128kB (M) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 3*256kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 4*512kB (UM) 3*1024kB (UM) 1*2048kB (M) 4*4096kB (M) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 = 25196kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 Node 0 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 Normal: 1032*4kB (ME) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 425*8kB (UME) 181*16kB (UME) 72*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14008kB 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 144 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342306 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 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30c/0xb03 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 RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:101 Code: 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 28 41 83 7e 81 e2 00 01 1f 00 75 2b <8b> 90 d0 12 00 00 83 fa 02 75 20 48 8b 88 d8 12 00 00 8b 80 d4 12 RSP: 0000:ffff8801c160e2b0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bb3741c0 RBX: 0000000000000003 RCX: ffffffff81a7a964 RDX: 0000000000000000 RSI: ffffffff81a7a96e RDI: 0000000000000007 RBP: ffff8801c160e2b0 R08: ffff8801bb3741c0 R09: 1ffffffff127395d R10: ffffed003b5e4732 R11: ffff8801daf23993 R12: ffff8801c160e428 R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001 shrink_node_memcg+0x72e/0x18e0 mm/vmscan.c:2524 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2742 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+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