CPU: 1 PID: 5442 Comm: syz-fuzzer Not tainted 4.19.0+ #135 rcu: INFO: rcu_preempt self-detected stall on CPU Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: rcu: 0-...!: (1 GPs behind) idle=ace/1/0x4000000000000004 softirq=62188/62189 fqs=3 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 rcu: (t=10613 jiffies g=89253 q=13) rcu: rcu_preempt kthread starved for 10178 jiffies! g89253 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 21384 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474 schedule+0xfe/0x460 kernel/sched/core.c:3518 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 NMI backtrace for cpu 0 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:console_unlock+0xffa/0x1160 kernel/printk/printk.c:2409 Code: 70 f4 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d 56 dc ed 07 00 74 29 e8 af 09 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cf f8 ff ff e8 67 e2 5c 00 e9 86 f1 ff ff e8 8d RSP: 0000:ffff8801d8bade78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d8650380 RBX: 0000000000000200 RCX: 1ffff1003b0ca193 RDX: 0000000000000000 RSI: ffffffff81641821 RDI: 0000000000000293 RBP: ffff8801d8badfe8 R08: ffff8801d8650c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d8650380 R12: dffffc0000000000 R13: ffffffff848a96d0 R14: dffffc0000000000 R15: ffffffff89b46bf0 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1996 dump_unreclaimable_slab.cold.22+0xd8/0xe5 mm/slab_common.c:1371 dump_header+0x7cc/0xf72 mm/oom_kill.c:447 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+0x22d4/0x2d70 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x40f9c0 Code: Bad RIP value. RSP: 002b:000000c4200246f8 EFLAGS: 00010216 RAX: ffffffffffffff92 RBX: 000000003b981abb RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014e5a80 RBP: 000000c420024720 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c4200246d8 R11: 0000000000000206 R12: 0000000000000001 R13: 000000c429601800 R14: 0000000000000001 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 1912 Comm: syz-executor4 Not tainted 4.19.0+ #135 Mem-Info: active_anon:55033 inactive_anon:131 isolated_anon:0 active_file:10 inactive_file:13 isolated_file:2 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9000 slab_unreclaimable:1464028 mapped:40962 shmem:4233 pagetables:626 bounce:0 free:13778 free_pcp:355 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220132kB inactive_anon:524kB active_file:40kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):8kB mapped:163848kB dirty:0kB writeback:0kB shmem:16932kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 188416kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 2818 6321 nmi_cpu_backtrace.cold.1+0x5c/0xa1 lib/nmi_backtrace.c:101 6321 Node 0 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 DMA32 free:25228kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:188kB local_pcp:0kB free_cma:0kB arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 lowmem_reserve[]: trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195 0 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334 0 3503 3503 Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:220132kB inactive_anon:524kB active_file:40kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5472kB pagetables:2504kB bounce:0kB free_pcp:1232kB local_pcp:528kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: check_cpu_stall kernel/rcu/tree.c:1408 [inline] rcu_pending kernel/rcu/tree.c:2961 [inline] rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2506 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 5*4kB (MH) 1*8kB (U) 3*16kB (MH) 2*32kB update_process_times+0x2d/0x70 kernel/time/timer.c:1636 (MH) tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 4*64kB (MH) tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 4*128kB __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25228kB Node 0 Normal: 1142*4kB (MEH) 440*8kB (UMEH) hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 198*16kB (UME) local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059 53*32kB (UMEH) 6*64kB (UM) 1*128kB (H) 0*256kB 1*512kB (H) 0*1024kB apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 0*2048kB 0*4096kB RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 = 13976kB Code: 41 7e 0f 85 32 ff ff ff e8 55 f9 3f ff e9 28 ff ff ff e8 ac c3 c3 ff 48 83 3d 04 72 91 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 1a 90 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB ORIG_RAX: ffffffffffffff13 4258 total pagecache pages RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003884f9a1 0 pages in swap cache RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801dae074c0 R08: ffff8801c427cd08 R09: 0000000000000002 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB R10: 0000000000000000 R11: ffff8801c427c440 R12: ffff8801d9bd2c80 Total swap = 0kB 1965979 pages RAM R13: ffff8801d9bd2c80 R14: 0000000000000000 R15: 0000000000000286 0 pages HighMem/MovableOnly 342867 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb __alloc_skb+0x119/0x770 net/core/skbuff.c:193 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-fuzzer cpuset= / mems_allowed=0 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 41 7e 0f 85 32 ff ff ff e8 f3 c4 3f ff e9 28 ff ff ff e8 4a 8f c3 ff 48 83 3d a2 3d 91 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 1a 90 RSP: 0000:ffff8801baff74a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801c427ccc0 RDI: 0000000000000286 RBP: ffff8801baff7518 R08: ffff8801c427c440 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800ac0 R13: ffff8801da800ac0 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.40+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5071 __bpf_try_make_writable net/core/filter.c:1638 [inline] bpf_try_make_writable net/core/filter.c:1644 [inline] bpf_try_make_head_writable net/core/filter.c:1652 [inline] ____bpf_clone_redirect net/core/filter.c:2089 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2067 bpf_prog_79bab0a1566dd526+0xb99/0x1000 CPU: 1 PID: 5442 Comm: syz-fuzzer Not tainted 4.19.0+ #135 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor4 cpuset= __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz4 mems_allowed=0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:console_unlock+0xffa/0x1160 kernel/printk/printk.c:2409 Code: 70 f4 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d 56 dc ed 07 00 74 29 e8 af 09 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cf f8 ff ff e8 67 e2 5c 00 e9 86 f1 ff ff e8 8d RSP: 0000:ffff8801d8bade78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d8650380 RBX: 0000000000000200 RCX: 1ffff1003b0ca193 RDX: 0000000000000000 RSI: ffffffff81641821 RDI: 0000000000000293 RBP: ffff8801d8badfe8 R08: ffff8801d8650c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d8650380 R12: dffffc0000000000 R13: ffffffff848a96d0 R14: dffffc0000000000 R15: ffffffff89b46bf0 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1996 dump_unreclaimable_slab.cold.22+0xd8/0xe5 mm/slab_common.c:1371 dump_header+0x7cc/0xf72 mm/oom_kill.c:447 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+0x22d4/0x2d70 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x40f9c0 Code: Bad RIP value. RSP: 002b:000000c4200246f8 EFLAGS: 00010216 RAX: ffffffffffffff92 RBX: 000000003b981abb RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014e5a80 RBP: 000000c420024720 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c4200246d8 R11: 0000000000000206 R12: 0000000000000001 R13: 000000c429601800 R14: 0000000000000001 R15: 0000000000000000 Mem-Info: CPU: 0 PID: 1912 Comm: syz-executor4 Not tainted 4.19.0+ #135 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:55033 inactive_anon:131 isolated_anon:0 active_file:10 inactive_file:13 isolated_file:2 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9000 slab_unreclaimable:1464028 mapped:40962 shmem:4233 pagetables:626 bounce:0 free:13778 free_pcp:355 free_cma:0 Call Trace: Node 0 active_anon:220132kB inactive_anon:524kB active_file:40kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):8kB mapped:163848kB dirty:0kB writeback:0kB shmem:16932kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 188416kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 2818 6321 6321 Node 0 DMA32 free:25228kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:188kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 0 3503 3503 Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:220132kB inactive_anon:524kB active_file:40kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5472kB pagetables:2504kB bounce:0kB free_pcp:1232kB local_pcp:528kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 Node 0 DMA32: 5*4kB (MH) 1*8kB (U) 3*16kB (MH) 2*32kB __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 (MH) 4*64kB fallback_alloc+0x204/0x2e0 mm/slab.c:3219 (MH) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*128kB (M) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 3*256kB (M) 4*512kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25228kB Node 0 Normal: 1142*4kB (MEH) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 440*8kB (UMEH) ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 198*16kB (UME) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 53*32kB (UMEH) 6*64kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (UM) 1*128kB (H) 0*256kB 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13976kB 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 4258 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342867 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb 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+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 41 7e 0f 85 32 ff ff ff e8 f3 c4 3f ff e9 28 ff ff ff e8 4a 8f c3 ff 48 83 3d a2 3d 91 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 1a 90 RSP: 0000:ffff8801baff74a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801c427ccc0 RDI: 0000000000000286 RBP: ffff8801baff7518 R08: ffff8801c427c440 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800ac0 R13: ffff8801da800ac0 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.40+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5071 __bpf_try_make_writable net/core/filter.c:1638 [inline] bpf_try_make_writable net/core/filter.c:1644 [inline] bpf_try_make_head_writable net/core/filter.c:1652 [inline] ____bpf_clone_redirect net/core/filter.c:2089 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2067 bpf_prog_79bab0a1566dd526+0xb99/0x1000 CPU: 1 PID: 5442 Comm: syz-fuzzer Not tainted 4.19.0+ #135 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor4 cpuset= syz4 mems_allowed=0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:console_unlock+0xffa/0x1160 kernel/printk/printk.c:2409 Code: 70 f4 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d 56 dc ed 07 00 74 29 e8 af 09 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cf f8 ff ff e8 67 e2 5c 00 e9 86 f1 ff ff e8 8d RSP: 0000:ffff8801d8bade78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d8650380 RBX: 0000000000000200 RCX: 1ffff1003b0ca193 RDX: 0000000000000000 RSI: ffffffff81641821 RDI: 0000000000000293 RBP: ffff8801d8badfe8 R08: ffff8801d8650c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d8650380 R12: dffffc0000000000 R13: ffffffff848a96d0 R14: dffffc0000000000 R15: ffffffff89b46bf0 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1996 dump_unreclaimable_slab.cold.22+0xd8/0xe5 mm/slab_common.c:1371 dump_header+0x7cc/0xf72 mm/oom_kill.c:447 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+0x22d4/0x2d70 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x40f9c0 Code: Bad RIP value. RSP: 002b:000000c4200246f8 EFLAGS: 00010216 RAX: ffffffffffffff92 RBX: 000000003b981abb RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014e5a80 RBP: 000000c420024720 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c4200246d8 R11: 0000000000000206 R12: 0000000000000001 R13: 000000c429601800 R14: 0000000000000001 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 1912 Comm: syz-executor4 Not tainted 4.19.0+ #135 Mem-Info: active_anon:55033 inactive_anon:131 isolated_anon:0 active_file:10 inactive_file:13 isolated_file:2 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9000 slab_unreclaimable:1464028 mapped:40962 shmem:4233 pagetables:626 bounce:0 free:13778 free_pcp:355 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:220132kB inactive_anon:524kB active_file:40kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):8kB mapped:163848kB dirty:0kB writeback:0kB shmem:16932kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 188416kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 0 2818 6321 6321 Node 0 DMA32 free:25228kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888720kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:188kB local_pcp:0kB free_cma:0kB __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:220132kB inactive_anon:524kB active_file:40kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5472kB pagetables:2504kB bounce:0kB free_pcp:1232kB local_pcp:528kB 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 5*4kB (MH) __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 1*8kB (U) 3*16kB (MH) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 2*32kB (MH) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*64kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (MH) 4*128kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (M) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB 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 3*4096kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (M) = 25228kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 Node 0 Normal: 1142*4kB (MEH) 440*8kB (UMEH) 198*16kB (UME) 53*32kB (UMEH) 6*64kB (UM) 1*128kB (H) 0*256kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13976kB 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 4258 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342867 pages reserved 0 pages cma reserved run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb __do_softirq+0x308/0xb7e kernel/softirq.c:292 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-fuzzer cpuset= / mems_allowed=0 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 41 7e 0f 85 32 ff ff ff e8 f3 c4 3f ff e9 28 ff ff ff e8 4a 8f c3 ff 48 83 3d a2 3d 91 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 1a 90 RSP: 0000:ffff8801baff74a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801c427ccc0 RDI: 0000000000000286 RBP: ffff8801baff7518 R08: ffff8801c427c440 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800ac0 R13: ffff8801da800ac0 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.40+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5071 __bpf_try_make_writable net/core/filter.c:1638 [inline] bpf_try_make_writable net/core/filter.c:1644 [inline] bpf_try_make_head_writable net/core/filter.c:1652 [inline] ____bpf_clone_redirect net/core/filter.c:2089 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2067 bpf_prog_79bab0a1566dd526+0xb99/0x1000 CPU: 1 PID: 5442 Comm: syz-fuzzer Not tainted 4.19.0+ #135 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor4 cpuset= syz4 mems_allowed=0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:console_unlock+0xffa/0x1160 kernel/printk/printk.c:2409 Code: 70 f4 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d 56 dc ed 07 00 74 29 e8 af 09 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cf f8 ff ff e8 67 e2 5c 00 e9 86 f1 ff ff e8 8d RSP: 0000:ffff8801d8bade78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d8650380 RBX: 0000000000000200 RCX: 1ffff1003b0ca193 RDX: 0000000000000000 RSI: ffffffff81641821 RDI: 0000000000000293 RBP: ffff8801d8badfe8 R08: ffff8801d8650c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d8650380 R12: dffffc0000000000 R13: ffffffff848a96d0 R14: dffffc0000000000 R15: ffffffff89b46bf0 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1996 dump_unreclaimable_slab.cold.22+0xd8/0xe5 mm/slab_common.c:1371 dump_header+0x7cc/0xf72 mm/oom_kill.c:447 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+0x22d4/0x2d70 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x40f9c0 Code: Bad RIP value. RSP: 002b:000000c4200246f8 EFLAGS: 00010216