run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 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: 1-...!: (313 ticks this GP) idle=ade/1/0x4000000000000002 softirq=83565/83597 fqs=5 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 rcu: (t=10508 jiffies g=111565 q=3060) rcu: rcu_preempt kthread starved for 10422 jiffies! g111565 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 28720 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 schedule+0x92/0x180 kernel/sched/core.c:3529 schedule_timeout+0x4db/0xfd0 kernel/time/timer.c:1803 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 skb_clone+0x150/0x3b0 net/core/skbuff.c:1285 deliver_clone+0x46/0xc0 net/bridge/br_forward.c:123 rcu_gp_fqs_loop kernel/rcu/tree.c:1948 [inline] rcu_gp_kthread+0x956/0x17a0 kernel/rcu/tree.c:2105 maybe_deliver net/bridge/br_forward.c:184 [inline] maybe_deliver net/bridge/br_forward.c:172 [inline] br_flood+0x4da/0x710 net/bridge/br_forward.c:226 br_dev_xmit+0xf6f/0x1460 net/bridge/br_device.c:87 __netdev_start_xmit include/linux/netdevice.h:4385 [inline] netdev_start_xmit include/linux/netdevice.h:4394 [inline] xmit_one net/core/dev.c:3278 [inline] dev_hard_start_xmit+0x1b2/0x980 net/core/dev.c:3294 kthread+0x357/0x430 kernel/kthread.c:246 __dev_queue_xmit+0x26e5/0x2fe0 net/core/dev.c:3864 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 NMI backtrace for cpu 1 dev_queue_xmit+0x18/0x20 net/core/dev.c:3897 tipc_l2_send_msg+0x2ae/0x460 net/tipc/bearer.c:461 tipc_bearer_xmit_skb+0x172/0x360 net/tipc/bearer.c:503 tipc_disc_timeout+0x933/0xd60 net/tipc/discover.c:332 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 Mem-Info: active_anon:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB 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 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62 lowmem_reserve[]: 0 0 2 2 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x183/0x1cf kernel/rcu/tree.c:1211 lowmem_reserve[]: 0 0 0 0 print_cpu_stall kernel/rcu/tree.c:1348 [inline] check_cpu_stall kernel/rcu/tree.c:1422 [inline] rcu_pending kernel/rcu/tree.c:3018 [inline] rcu_check_callbacks.cold+0x500/0xa4a kernel/rcu/tree.c:2521 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 update_process_times+0x32/0x80 kernel/time/timer.c:1635 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:161 Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1271 Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x33e/0xde0 kernel/time/hrtimer.c:1451 Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 1059 total pagecache pages local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x120/0x570 arch/x86/kernel/apic/apic.c:1060 0 pages in swap cache apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3318 [inline] RIP: 0010:kmem_cache_alloc_node+0x23e/0x710 mm/slab.c:3631 Total swap = 0kB Code: 5b 7e 0f 85 3e ff ff ff e8 60 18 5a ff e9 34 ff ff ff e8 05 f2 ce ff 48 83 3d 7d 33 ec 06 00 0f 84 3a 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c8 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 aa db 1965979 pages RAM RSP: 0000:ffff8880a98df948 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 0 pages HighMem/MovableOnly RAX: 0000000000000007 RBX: 0000000000480020 RCX: 1ffff1101531a19c 339412 pages reserved RDX: 0000000000000000 RSI: ffff8880a98d0ce8 RDI: 0000000000000282 0 pages cma reserved RBP: ffff8880a98df9b8 R08: ffff8880a98d0440 R09: ffff8880a98d0ce0 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88821b6fb540 R13: ffff88821b6fb540 R14: 0000000000000000 R15: 0000000000000282 __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 alloc_skb include/linux/skbuff.h:1011 [inline] new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1372 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 aoe: skb alloc failure Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 __build_skb+0x3e/0x310 net/core/skbuff.c:284 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:425 netdev_alloc_skb include/linux/skbuff.h:2682 [inline] dev_alloc_skb include/linux/skbuff.h:2695 [inline] send_hsr_supervision_frame+0x110/0xf20 net/hsr/hsr_device.c:266 hsr_announce+0x12f/0x430 net/hsr/hsr_device.c:349 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 Mem-Info: active_anon:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB 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 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 1059 total pagecache pages __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 Total swap = 0kB 1965979 pages RAM ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 0 pages HighMem/MovableOnly slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 339412 pages reserved 0 pages cma reserved __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 alloc_skb include/linux/skbuff.h:1011 [inline] new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1372 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 aoe: skb alloc failure 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+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 __build_skb+0x3e/0x310 net/core/skbuff.c:284 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:425 netdev_alloc_skb include/linux/skbuff.h:2682 [inline] dev_alloc_skb include/linux/skbuff.h:2695 [inline] send_hsr_supervision_frame+0x110/0xf20 net/hsr/hsr_device.c:266 hsr_announce+0x12f/0x430 net/hsr/hsr_device.c:349 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 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:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Call Trace: Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB 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 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 1059 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 Free swap = 0kB ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 Total swap = 0kB 1965979 pages RAM slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 0 pages HighMem/MovableOnly __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 339412 pages reserved 0 pages cma reserved syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 alloc_skb include/linux/skbuff.h:1011 [inline] new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1372 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 aoe: skb alloc failure 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+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 __build_skb+0x3e/0x310 net/core/skbuff.c:284 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:425 netdev_alloc_skb include/linux/skbuff.h:2682 [inline] dev_alloc_skb include/linux/skbuff.h:2695 [inline] send_hsr_supervision_frame+0x110/0xf20 net/hsr/hsr_device.c:266 hsr_announce+0x12f/0x430 net/hsr/hsr_device.c:349 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 Mem-Info: active_anon:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 1059 total pagecache pages __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 Total swap = 0kB 1965979 pages RAM ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 0 pages HighMem/MovableOnly slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 339412 pages reserved 0 pages cma reserved __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 alloc_skb include/linux/skbuff.h:1011 [inline] new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1372 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 aoe: skb alloc failure 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+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 skb_clone+0x150/0x3b0 net/core/skbuff.c:1285 deliver_clone+0x46/0xc0 net/bridge/br_forward.c:123 maybe_deliver net/bridge/br_forward.c:184 [inline] maybe_deliver net/bridge/br_forward.c:172 [inline] br_flood+0x4da/0x710 net/bridge/br_forward.c:226 br_dev_xmit+0xf6f/0x1460 net/bridge/br_device.c:87 __netdev_start_xmit include/linux/netdevice.h:4385 [inline] netdev_start_xmit include/linux/netdevice.h:4394 [inline] xmit_one net/core/dev.c:3278 [inline] dev_hard_start_xmit+0x1b2/0x980 net/core/dev.c:3294 __dev_queue_xmit+0x26e5/0x2fe0 net/core/dev.c:3864 dev_queue_xmit+0x18/0x20 net/core/dev.c:3897 tipc_l2_send_msg+0x2ae/0x460 net/tipc/bearer.c:461 tipc_bearer_xmit_skb+0x172/0x360 net/tipc/bearer.c:503 tipc_disc_timeout+0x933/0xd60 net/tipc/discover.c:332 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 Mem-Info: active_anon:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 1059 total pagecache pages __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 Total swap = 0kB ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 1965979 pages RAM slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 0 pages HighMem/MovableOnly 339412 pages reserved __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 0 pages cma reserved syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 alloc_skb include/linux/skbuff.h:1011 [inline] new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1372 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 aoe: skb alloc failure 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+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 __build_skb+0x3e/0x310 net/core/skbuff.c:284 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:425 netdev_alloc_skb include/linux/skbuff.h:2682 [inline] dev_alloc_skb include/linux/skbuff.h:2695 [inline] send_hsr_supervision_frame+0x110/0xf20 net/hsr/hsr_device.c:266 hsr_announce+0x12f/0x430 net/hsr/hsr_device.c:349 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 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:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Call Trace: Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB 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 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 1059 total pagecache pages __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 Total swap = 0kB 1965979 pages RAM ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 0 pages HighMem/MovableOnly 339412 pages reserved slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 0 pages cma reserved __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 alloc_skb include/linux/skbuff.h:1011 [inline] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x2af/0xe50 net/bridge/br_mdb.c:394 br_mdb_notify+0x20d/0x2d0 net/bridge/br_mdb.c:427 br_multicast_del_pg+0x260/0x4e0 net/bridge/br_multicast.c:208 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:232 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 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+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 __build_skb+0x3e/0x310 net/core/skbuff.c:284 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:425 netdev_alloc_skb include/linux/skbuff.h:2682 [inline] dev_alloc_skb include/linux/skbuff.h:2695 [inline] send_hsr_supervision_frame+0x110/0xf20 net/hsr/hsr_device.c:266 hsr_announce+0x12f/0x430 net/hsr/hsr_device.c:349 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 Mem-Info: active_anon:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 1059 total pagecache pages __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 1965979 pages RAM ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 0 pages HighMem/MovableOnly 339412 pages reserved slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 0 pages cma reserved __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 alloc_skb include/linux/skbuff.h:1011 [inline] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x2af/0xe50 net/bridge/br_mdb.c:394 br_mdb_notify+0x20d/0x2d0 net/bridge/br_mdb.c:427 br_multicast_del_pg+0x260/0x4e0 net/bridge/br_multicast.c:208 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:232 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 CPU: 0 PID: 7268 Comm: syz-fuzzer Not tainted 5.0.0-rc4+ #60 ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 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+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 __build_skb+0x3e/0x310 net/core/skbuff.c:284 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:425 netdev_alloc_skb include/linux/skbuff.h:2682 [inline] dev_alloc_skb include/linux/skbuff.h:2695 [inline] send_hsr_supervision_frame+0x110/0xf20 net/hsr/hsr_device.c:266 hsr_announce+0x12f/0x430 net/hsr/hsr_device.c:349 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:console_unlock+0xf29/0x10a0 kernel/printk/printk.c:2412 Code: 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d d4 55 38 07 00 74 2c e8 9d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 b5 a8 4c 00 e9 78 fa ff RSP: 0000:ffff888086cef288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880879ee640 RBX: 0000000000000200 RCX: 1ffff11010f3ddeb RDX: 0000000000000000 RSI: ffffffff815a2c23 RDI: 0000000000000293 RBP: ffff888086cef318 R08: ffff8880879ee640 R09: ffff8880879eef58 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841a0900 R14: ffffffff88f81cf0 R15: 000000000001b701 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 dump_unreclaimable_slab.cold+0x18/0xea mm/slab_common.c:1408 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6d9 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1133 [inline] out_of_memory+0x7da/0x12e0 mm/oom_kill.c:1066 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x443a65 Code: Bad RIP value. RSP: 002b:000000c429989850 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000004 RCX: 00000000008289e0 RDX: 0000000000000010 RSI: 0000000000000001 RDI: 0000000000000020 RBP: 000000c4299898a8 R08: 0000000000000010 R09: 0000000000000002 R10: 0000000000bcc7a0 R11: 00000000000002fd R12: 0000000000000000 R13: 0000000000000020 R14: 0000000000000013 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc4+ #60 Mem-Info: active_anon:55200 inactive_anon:979 isolated_anon:0 active_file:9 inactive_file:14 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11303 slab_unreclaimable:1438763 mapped:43526 shmem:1036 pagetables:632 bounce:0 free:10976 free_pcp:283 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174104kB dirty:0kB writeback:0kB shmem:4144kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 45056kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 0 DMA free:10300kB min:220kB low:272kB high:324kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:13596kB min:36232kB low:45288kB high:54344kB active_anon:220800kB inactive_anon:3916kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6816kB pagetables:2528kB bounce:0kB free_pcp:660kB local_pcp:628kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:20000kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:472kB local_pcp:224kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10300kB Node 0 DMA32: 1391*4kB (UMEH) 484*8kB (UME) 260*16kB (UMEH) 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (UME) 2*8kB (E) 2*16kB (UE) 1*32kB (M) 3*64kB (UME) 2*128kB (UM) 2*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 3*2048kB (UE) 2*4096kB (U) = 20000kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 1059 total pagecache pages __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208