CPU: 1 PID: 5248 Comm: rsyslogd Not tainted 4.19.0+ #134 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=b06/1/0x4000000000000004 softirq=18916/18917 fqs=0 __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=10662 jiffies g=24173 q=10) rcu: rcu_preempt kthread starved for 10662 jiffies! g24173 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 22696 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474 schedule+0xfe/0x460 kernel/sched/core.c:3518 __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] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 kthread+0x35a/0x420 kernel/kthread.c:246 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 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: 30 f6 31 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d d6 76 cc 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:ffff8801bd075e78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd744380 RBX: 0000000000000200 RCX: 1ffff10037ae8993 RDX: 0000000000000000 RSI: ffffffff81657f61 RDI: 0000000000000293 RBP: ffff8801bd075fe8 R08: ffff8801bd744c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd744380 R12: dffffc0000000000 R13: ffffffff848aab90 R14: dffffc0000000000 R15: ffffffff89941250 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: 0033:0x7fba28a6e1fd Code: Bad RIP value. RSP: 002b:00007fba2600de30 EFLAGS: 00010293 RAX: 0000000000000fd6 RBX: 0000000001602650 RCX: 00007fba28a6e1fd RDX: 0000000000000fff RSI: 00007fba278425a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00000000015ed260 R09: 0000000000000000 R10: 6b205d3139363136 R11: 0000000000000293 R12: 000000000065e420 R13: 00007fba2600e9c0 R14: 00007fba290b3040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 12084 Comm: syz-executor5 Not tainted 4.19.0+ #134 Mem-Info: active_anon:52643 inactive_anon:3212 isolated_anon:0 active_file:24 inactive_file:1 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9026 slab_unreclaimable:1472605 mapped:32770 shmem:3219 pagetables:546 bounce:0 free:13716 free_pcp:285 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:210572kB inactive_anon:12848kB active_file:96kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131080kB dirty:0kB writeback:0kB shmem:12876kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 194560kB 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 2819 6323 nmi_cpu_backtrace.cold.1+0x5c/0xa1 lib/nmi_backtrace.c:101 6323 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 Node 0 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:184kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195 lowmem_reserve[]: print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334 0 0 3503 3503 Node 0 Normal free:13892kB min:37352kB low:46688kB high:56024kB active_anon:210388kB inactive_anon:12848kB active_file:96kB inactive_file:4kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5248kB pagetables:2184kB bounce:0kB free_pcp:892kB local_pcp:524kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 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 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 Node 0 DMA32: 2*4kB (UH) 4*8kB (UMH) 4*16kB (UMH) 2*32kB (UM) 5*64kB (MH) 6*128kB (UMH) update_process_times+0x2d/0x70 kernel/time/timer.c:1636 5*256kB tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 (MH) tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 4*512kB __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 (M) 4*1024kB (UM) 2*2048kB (M) 3*4096kB (M) = 25064kB Node 0 Normal: 943*4kB (ME) 411*8kB hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 (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 191*16kB (ME) 72*32kB (UME) 3*64kB (M) 0*128kB 1*256kB apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 (U) 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 0*512kB Code: 40 7e 0f 85 32 ff ff ff e8 15 92 3e ff e9 28 ff ff ff e8 ac c3 c3 ff 48 83 3d 84 0c 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 c2 3b 1*1024kB RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 (U) 0*2048kB ORIG_RAX: ffffffffffffff13 0*4096kB RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10039a25559 = 13892kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB RBP: ffff8801dae074c0 R08: ffff8801cd12aac8 R09: 0000000000000002 3244 total pagecache pages R10: 0000000000000000 R11: ffff8801cd12a200 R12: ffff8801d9bd2680 0 pages in swap cache R13: ffff8801d9bd2680 R14: 0000000000000000 R15: 0000000000000286 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 1965979 pages RAM 0 pages HighMem/MovableOnly 342293 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd 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: 3f 7e 0f 85 32 ff ff ff e8 b3 5d 3e ff e9 28 ff ff ff e8 4a 8f c3 ff 48 83 3d 22 d8 6f 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 c2 3b RSP: 0000:ffff88019c3c74a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cd12aa80 RDI: 0000000000000286 RBP: ffff88019c3c7518 R08: ffff8801cd12a200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 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_88483476fbe68a28+0xba9/0x1000 CPU: 1 PID: 5248 Comm: rsyslogd Not tainted 4.19.0+ #134 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor5 cpuset= syz5 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] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 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: 30 f6 31 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d d6 76 cc 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:ffff8801bd075e78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd744380 RBX: 0000000000000200 RCX: 1ffff10037ae8993 RDX: 0000000000000000 RSI: ffffffff81657f61 RDI: 0000000000000293 RBP: ffff8801bd075fe8 R08: ffff8801bd744c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd744380 R12: dffffc0000000000 R13: ffffffff848aab90 R14: dffffc0000000000 R15: ffffffff89941250 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: 0033:0x7fba28a6e1fd Code: Bad RIP value. RSP: 002b:00007fba2600de30 EFLAGS: 00010293 RAX: 0000000000000fd6 RBX: 0000000001602650 RCX: 00007fba28a6e1fd RDX: 0000000000000fff RSI: 00007fba278425a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00000000015ed260 R09: 0000000000000000 R10: 6b205d3139363136 R11: 0000000000000293 R12: 000000000065e420 R13: 00007fba2600e9c0 R14: 00007fba290b3040 R15: 0000000000000003 CPU: 0 PID: 12084 Comm: syz-executor5 Not tainted 4.19.0+ #134 Mem-Info: active_anon:52643 inactive_anon:3212 isolated_anon:0 active_file:24 inactive_file:1 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9026 slab_unreclaimable:1472605 mapped:32770 shmem:3219 pagetables:546 bounce:0 free:13716 free_pcp:285 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:210572kB inactive_anon:12848kB active_file:96kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131080kB dirty:0kB writeback:0kB shmem:12876kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 194560kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 2819 6323 6323 Node 0 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:184kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB 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:13892kB min:37352kB low:46688kB high:56024kB active_anon:210388kB inactive_anon:12848kB active_file:96kB inactive_file:4kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5248kB pagetables:2184kB bounce:0kB free_pcp:892kB local_pcp:524kB 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 __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 DMA32: 2*4kB (UH) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 4*8kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (UMH) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 4*16kB (UMH) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 2*32kB (UM) 5*64kB (MH) 6*128kB (UMH) 5*256kB (MH) 4*512kB 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 4*1024kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (UM) 2*2048kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (M) 3*4096kB (M) = 25064kB Node 0 Normal: 943*4kB (ME) 411*8kB (UME) 191*16kB (ME) 72*32kB (UME) 3*64kB (M) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0*128kB 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 13892kB 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 3244 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 1965979 pages RAM 0 pages HighMem/MovableOnly 342293 pages reserved __do_softirq+0x308/0xb7e kernel/softirq.c:292 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd 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: 3f 7e 0f 85 32 ff ff ff e8 b3 5d 3e ff e9 28 ff ff ff e8 4a 8f c3 ff 48 83 3d 22 d8 6f 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 c2 3b RSP: 0000:ffff88019c3c74a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cd12aa80 RDI: 0000000000000286 RBP: ffff88019c3c7518 R08: ffff8801cd12a200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 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_88483476fbe68a28+0xba9/0x1000 CPU: 1 PID: 5248 Comm: rsyslogd Not tainted 4.19.0+ #134 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-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor5 cpuset= syz5 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] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 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: 30 f6 31 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d d6 76 cc 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:ffff8801bd075e78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd744380 RBX: 0000000000000200 RCX: 1ffff10037ae8993 RDX: 0000000000000000 RSI: ffffffff81657f61 RDI: 0000000000000293 RBP: ffff8801bd075fe8 R08: ffff8801bd744c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd744380 R12: dffffc0000000000 R13: ffffffff848aab90 R14: dffffc0000000000 R15: ffffffff89941250 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: 0033:0x7fba28a6e1fd Code: Bad RIP value. RSP: 002b:00007fba2600de30 EFLAGS: 00010293 RAX: 0000000000000fd6 RBX: 0000000001602650 RCX: 00007fba28a6e1fd RDX: 0000000000000fff RSI: 00007fba278425a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00000000015ed260 R09: 0000000000000000 R10: 6b205d3139363136 R11: 0000000000000293 R12: 000000000065e420 R13: 00007fba2600e9c0 R14: 00007fba290b3040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 12084 Comm: syz-executor5 Not tainted 4.19.0+ #134 Mem-Info: active_anon:52643 inactive_anon:3212 isolated_anon:0 active_file:24 inactive_file:1 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9026 slab_unreclaimable:1472605 mapped:32770 shmem:3219 pagetables:546 bounce:0 free:13716 free_pcp:285 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:210572kB inactive_anon:12848kB active_file:96kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131080kB dirty:0kB writeback:0kB shmem:12876kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 194560kB 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 2819 6323 6323 Node 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:184kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13892kB min:37352kB low:46688kB high:56024kB active_anon:210388kB inactive_anon:12848kB active_file:96kB inactive_file:4kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5248kB pagetables:2184kB bounce:0kB free_pcp:892kB local_pcp:524kB 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: 2*4kB (UH) 4*8kB (UMH) 4*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+0xa5/0x8c0 mm/slab.c:2677 (UMH) 2*32kB (UM) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 5*64kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (MH) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 6*128kB (UMH) 5*256kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (MH) 4*512kB (M) 4*1024kB (UM) 2*2048kB (M) 3*4096kB (M) = 25064kB alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 Node 0 Normal: ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 943*4kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (ME) 411*8kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (UME) 191*16kB (ME) 72*32kB (UME) 3*64kB (M) 0*128kB 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 13892kB 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 3244 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 342293 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= / run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 mems_allowed=0 __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: 3f 7e 0f 85 32 ff ff ff e8 b3 5d 3e ff e9 28 ff ff ff e8 4a 8f c3 ff 48 83 3d 22 d8 6f 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 c2 3b RSP: 0000:ffff88019c3c74a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cd12aa80 RDI: 0000000000000286 RBP: ffff88019c3c7518 R08: ffff8801cd12a200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 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_88483476fbe68a28+0xba9/0x1000 CPU: 1 PID: 5248 Comm: rsyslogd Not tainted 4.19.0+ #134 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-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor5 cpuset= __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz5 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] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 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: 30 f6 31 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 3a 48 83 3d d6 76 cc 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:ffff8801bd075e78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd744380 RBX: 0000000000000200 RCX: 1ffff10037ae8993 RDX: 0000000000000000 RSI: ffffffff81657f61 RDI: 0000000000000293 RBP: ffff8801bd075fe8 R08: ffff8801bd744c98 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd744380 R12: dffffc0000000000 R13: ffffffff848aab90 R14: dffffc0000000000 R15: ffffffff89941250 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