start_kernel+0x803/0x83c init/main.c:739 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: rcu: 1-...!: (196 ticks this GP) idle=002/1/0x4000000000000002 softirq=22243/22243 fqs=60 __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: (detected by 0, t=10547 jiffies, g=26449, q=13) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:94 Code: e6 08 41 bc f4 ff ff ff e8 21 9f ea ff 48 c7 05 f2 44 e6 08 00 00 00 00 e9 c8 e9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 d8 05 RSP: 0000:ffff8880ae906eb0 EFLAGS: 00000097 RAX: 0000000000000103 RBX: 00000000000c067a RCX: ffffffff8701d233 RDX: 00000000000c067a RSI: 0000000005f5e0ff RDI: 0000000000000007 RBP: ffff8880ae906ed8 R08: ffff888091244200 R09: ffffed1015d20e48 R10: ffffed1015d20e47 R11: ffff8880ae90723e R12: 00000000000c067a R13: ffff8880ae906f88 R14: 000000000000000a R15: ffff8880ae90723f FS: 0000000001685c48(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045ddc9 CR3: 00000000a8b86000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: number+0xb7a/0xc70 lib/vsprintf.c:468 vsnprintf+0x270/0x19b0 lib/vsprintf.c:2462 sprintf+0xc0/0x100 lib/vsprintf.c:2598 print_time kernel/printk/printk.c:1239 [inline] print_prefix kernel/printk/printk.c:1251 [inline] msg_print_text+0x3f3/0x450 kernel/printk/printk.c:1262 console_unlock+0x3af/0x10a0 kernel/printk/printk.c:2383 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 printk_stack_address arch/x86/kernel/dumpstack.c:71 [inline] show_trace_log_lvl+0x23a/0x28c arch/x86/kernel/dumpstack.c:258 show_stack+0x39/0x3b arch/x86/kernel/dumpstack.c:293 __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:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 rcu: rcu_preempt kthread starved for 10420 jiffies! g26449 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 28832 10 2 0x80000000 Call Trace: __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 __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 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 schedule_timeout+0x4db/0xfd0 kernel/time/timer.c:1803 ____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 rcu_gp_fqs_loop kernel/rcu/tree.c:1948 [inline] rcu_gp_kthread+0x956/0x17a0 kernel/rcu/tree.c:2105 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:425 netdev_alloc_skb include/linux/skbuff.h:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 aoe: skb alloc failure 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 swapper/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-63 __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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.0-rc6+ #56 Mem-Info: active_anon:55285 inactive_anon:191 isolated_anon:0 active_file:2 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11421 slab_unreclaimable:1450626 mapped:34818 shmem:244 pagetables:586 bounce:0 free:11527 free_pcp:387 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:139272kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB 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 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 lowmem_reserve[]: 0 2553 2555 2555 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 Node 0 DMA32 free:15872kB min:42376kB low:51432kB high:60488kB active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2617976kB mlocked:0kB kernel_stack:6752kB pagetables:2344kB bounce:0kB free_pcp:1176kB local_pcp:804kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:12kB 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:19924kB min:53624kB low:67028kB high:80432kB active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:372kB local_pcp:124kB free_cma:0kB 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 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA32: 892*4kB (ME) 602*8kB (UME) 250*16kB (ME) 89*32kB (UM) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 15872kB Node 0 Normal: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB Node 1 Normal: 3*4kB (ME) 3*8kB (UME) 3*16kB (UE) 4*32kB (ME) 2*64kB (UM) 1*128kB (M) 2*256kB (UE) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 3*4096kB (M) = 19924kB 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 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 246 total pagecache pages 0 pages in swap cache __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 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 slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 339411 pages reserved 0 pages cma reserved __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.763 msecs 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 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:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58 Code: ff ff ff 48 89 c7 48 89 45 d8 e8 49 63 a1 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 38 63 a1 fa eb 82 90 90 90 90 90 90 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90 RSP: 0000:ffffffff88807d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125041 RBX: ffffffff8887dec0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8887e73c RBP: ffffffff88807d38 R08: ffffffff8887dec0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff889281f8 R14: 0000000000000000 R15: 0000000000000000 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x386/0x570 kernel/sched/idle.c:262 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353 rest_init+0x245/0x37b init/main.c:442 arch_call_rest_init+0xe/0x1b start_kernel+0x803/0x83c init/main.c:739 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 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 swapper/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-63 __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:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.0-rc6+ #56 Mem-Info: active_anon:55285 inactive_anon:191 isolated_anon:0 active_file:2 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11421 slab_unreclaimable:1450626 mapped:34818 shmem:244 pagetables:586 bounce:0 free:11527 free_pcp:387 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:139272kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB 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 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 lowmem_reserve[]: 0 2553 2555 2555 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 Node 0 DMA32 free:15872kB min:42376kB low:51432kB high:60488kB active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2617976kB mlocked:0kB kernel_stack:6752kB pagetables:2344kB bounce:0kB free_pcp:1176kB local_pcp:804kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:12kB 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:19924kB min:53624kB low:67028kB high:80432kB active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:372kB local_pcp:124kB free_cma:0kB 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 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA32: 892*4kB (ME) 602*8kB (UME) 250*16kB (ME) 89*32kB (UM) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 15872kB Node 0 Normal: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB Node 1 Normal: 3*4kB (ME) 3*8kB (UME) 3*16kB (UE) 4*32kB (ME) 2*64kB (UM) 1*128kB (M) 2*256kB (UE) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 3*4096kB (M) = 19924kB 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 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 246 total pagecache pages 0 pages in swap cache __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 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 slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 339411 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 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:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58 Code: ff ff ff 48 89 c7 48 89 45 d8 e8 49 63 a1 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 38 63 a1 fa eb 82 90 90 90 90 90 90 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90 RSP: 0000:ffffffff88807d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125041 RBX: ffffffff8887dec0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8887e73c RBP: ffffffff88807d38 R08: ffffffff8887dec0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff889281f8 R14: 0000000000000000 R15: 0000000000000000 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x386/0x570 kernel/sched/idle.c:262 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353 rest_init+0x245/0x37b init/main.c:442 arch_call_rest_init+0xe/0x1b start_kernel+0x803/0x83c init/main.c:739 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 aoe: skb alloc failure Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: swapper/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-63 __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:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.0-rc6+ #56 Mem-Info: active_anon:55285 inactive_anon:191 isolated_anon:0 active_file:2 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11421 slab_unreclaimable:1450626 mapped:34818 shmem:244 pagetables:586 bounce:0 free:11527 free_pcp:387 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:139272kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB 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 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 lowmem_reserve[]: 0 2553 2555 2555 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 Node 0 DMA32 free:15872kB min:42376kB low:51432kB high:60488kB active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2617976kB mlocked:0kB kernel_stack:6752kB pagetables:2344kB bounce:0kB free_pcp:1176kB local_pcp:804kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:12kB 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:19924kB min:53624kB low:67028kB high:80432kB active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:372kB local_pcp:124kB free_cma:0kB 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 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA32: 892*4kB (ME) 602*8kB (UME) 250*16kB (ME) 89*32kB (UM) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 15872kB Node 0 Normal: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB Node 1 Normal: 3*4kB (ME) 3*8kB (UME) 3*16kB (UE) 4*32kB (ME) 2*64kB (UM) 1*128kB (M) 2*256kB (UE) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 3*4096kB (M) = 19924kB 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 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 246 total pagecache pages 0 pages in swap cache __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 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 slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 339411 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 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:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58 Code: ff ff ff 48 89 c7 48 89 45 d8 e8 49 63 a1 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 38 63 a1 fa eb 82 90 90 90 90 90 90 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90 RSP: 0000:ffffffff88807d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125041 RBX: ffffffff8887dec0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8887e73c RBP: ffffffff88807d38 R08: ffffffff8887dec0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff889281f8 R14: 0000000000000000 R15: 0000000000000000 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x386/0x570 kernel/sched/idle.c:262 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353 rest_init+0x245/0x37b init/main.c:442 arch_call_rest_init+0xe/0x1b start_kernel+0x803/0x83c init/main.c:739 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 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 swapper/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-63 __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:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.0-rc6+ #56 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:55285 inactive_anon:191 isolated_anon:0 active_file:2 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11421 slab_unreclaimable:1450626 mapped:34818 shmem:244 pagetables:586 bounce:0 free:11527 free_pcp:387 free_cma:0 Call Trace: Node 0 active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:139272kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB 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:15872kB min:42376kB low:51432kB high:60488kB active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2617976kB mlocked:0kB kernel_stack:6752kB pagetables:2344kB bounce:0kB free_pcp:1176kB local_pcp:804kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:12kB 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:19924kB min:53624kB low:67028kB high:80432kB active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:372kB local_pcp:124kB 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: 892*4kB (ME) 602*8kB (UME) 250*16kB (ME) 89*32kB (UM) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 15872kB Node 0 Normal: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB Node 1 Normal: 3*4kB (ME) 3*8kB (UME) 3*16kB (UE) 4*32kB (ME) 2*64kB (UM) 1*128kB (M) 2*256kB (UE) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 3*4096kB (M) = 19924kB 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 246 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 slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 339411 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 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:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58 Code: ff ff ff 48 89 c7 48 89 45 d8 e8 49 63 a1 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 38 63 a1 fa eb 82 90 90 90 90 90 90 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90 RSP: 0000:ffffffff88807d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125041 RBX: ffffffff8887dec0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8887e73c RBP: ffffffff88807d38 R08: ffffffff8887dec0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff889281f8 R14: 0000000000000000 R15: 0000000000000000 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x386/0x570 kernel/sched/idle.c:262 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353 rest_init+0x245/0x37b init/main.c:442 arch_call_rest_init+0xe/0x1b start_kernel+0x803/0x83c init/main.c:739 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 aoe: skb alloc failure Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: swapper/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-63 __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:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.0-rc6+ #56 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:55285 inactive_anon:191 isolated_anon:0 active_file:2 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11421 slab_unreclaimable:1450626 mapped:34818 shmem:244 pagetables:586 bounce:0 free:11527 free_pcp:387 free_cma:0 Call Trace: Node 0 active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:139272kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB 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:15872kB min:42376kB low:51432kB high:60488kB active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2617976kB mlocked:0kB kernel_stack:6752kB pagetables:2344kB bounce:0kB free_pcp:1176kB local_pcp:804kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:12kB 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:19924kB min:53624kB low:67028kB high:80432kB active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:372kB local_pcp:124kB free_cma:0kB 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: 892*4kB (ME) 602*8kB (UME) 250*16kB (ME) 89*32kB (UM) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 15872kB Node 0 Normal: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB Node 1 Normal: 3*4kB (ME) 3*8kB (UME) 3*16kB (UE) 4*32kB (ME) 2*64kB (UM) 1*128kB (M) 2*256kB (UE) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 3*4096kB (M) = 19924kB 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 246 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 1965979 pages RAM 0 pages HighMem/MovableOnly 339411 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_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 slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 __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 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:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58 Code: ff ff ff 48 89 c7 48 89 45 d8 e8 49 63 a1 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 38 63 a1 fa eb 82 90 90 90 90 90 90 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90 RSP: 0000:ffffffff88807d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125041 RBX: ffffffff8887dec0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8887e73c RBP: ffffffff88807d38 R08: ffffffff8887dec0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff889281f8 R14: 0000000000000000 R15: 0000000000000000 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x386/0x570 kernel/sched/idle.c:262 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353 rest_init+0x245/0x37b init/main.c:442 arch_call_rest_init+0xe/0x1b start_kernel+0x803/0x83c init/main.c:739 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 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 swapper/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-63 __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:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.0-rc6+ #56 Mem-Info: active_anon:55285 inactive_anon:191 isolated_anon:0 active_file:2 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11421 slab_unreclaimable:1450626 mapped:34818 shmem:244 pagetables:586 bounce:0 free:11527 free_pcp:387 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:139272kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 1 active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB 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 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 lowmem_reserve[]: 0 2553 2555 2555 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 Node 0 DMA32 free:15872kB min:42376kB low:51432kB high:60488kB active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2617976kB mlocked:0kB kernel_stack:6752kB pagetables:2344kB bounce:0kB free_pcp:1176kB local_pcp:804kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:12kB 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:19924kB min:53624kB low:67028kB high:80432kB active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:372kB local_pcp:124kB free_cma:0kB 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 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Node 0 DMA32: 892*4kB (ME) 602*8kB (UME) 250*16kB (ME) 89*32kB (UM) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 15872kB Node 0 Normal: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB Node 1 Normal: 3*4kB (ME) 3*8kB (UME) 3*16kB (UE) 4*32kB (ME) 2*64kB (UM) 1*128kB (M) 2*256kB (UE) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 3*4096kB (M) = 19924kB 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 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 246 total pagecache pages 0 pages in swap cache __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 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 slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 339411 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 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:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58 Code: ff ff ff 48 89 c7 48 89 45 d8 e8 49 63 a1 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 38 63 a1 fa eb 82 90 90 90 90 90 90 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90 RSP: 0000:ffffffff88807d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125041 RBX: ffffffff8887dec0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8887e73c RBP: ffffffff88807d38 R08: ffffffff8887dec0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff889281f8 R14: 0000000000000000 R15: 0000000000000000 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x386/0x570 kernel/sched/idle.c:262 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353 rest_init+0x245/0x37b init/main.c:442 arch_call_rest_init+0xe/0x1b start_kernel+0x803/0x83c init/main.c:739 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 CPU: 1 PID: 7778 Comm: syz-fuzzer Not tainted 5.0.0-rc6+ #56 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 swapper/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-63 __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:2687 [inline] dev_alloc_skb include/linux/skbuff.h:2700 [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 a4 46 38 07 00 74 2c e8 8d ac 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 4f f9 ff ff 48 89 df e8 15 43 4d 00 e9 78 fa ff RSP: 0000:ffff88808f8b7288 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888091244200 RBX: 0000000000000200 RCX: 1ffff11012248963 RDX: 0000000000000000 RSI: ffffffff815a3b53 RDI: 0000000000000293 RBP: ffff88808f8b7318 R08: ffff888091244200 R09: ffff888091244b18 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff841acfe0 R14: ffffffff88f82b70 R15: 0000000000009901 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+0xde/0xea mm/slab_common.c:1417 dump_header+0x3fd/0xb6c mm/oom_kill.c:457 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 __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: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010202 RAX: ffffffffffffff92 RBX: 000000003b982058 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001684ba0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001 R13: 000000c42cec6f50 R14: 0000000000000000 R15: 0000000000000000 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.0-rc6+ #56 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:55285 inactive_anon:191 isolated_anon:0 active_file:2 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11421 slab_unreclaimable:1450626 mapped:34818 shmem:244 pagetables:586 bounce:0 free:11527 free_pcp:387 free_cma:0 Call Trace: Node 0 active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:139272kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB 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:15872kB min:42376kB low:51432kB high:60488kB active_anon:220956kB inactive_anon:764kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2617976kB mlocked:0kB kernel_stack:6752kB pagetables:2344kB bounce:0kB free_pcp:1176kB local_pcp:804kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 Node 0 Normal free:12kB 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:19924kB min:53624kB low:67028kB high:80432kB active_anon:184kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:372kB local_pcp:124kB 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: 892*4kB (ME) 602*8kB (UME) 250*16kB (ME) 89*32kB (UM) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 15872kB Node 0 Normal: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB Node 1 Normal: 3*4kB (ME) 3*8kB (UME) 3*16kB (UE) 4*32kB (ME) 2*64kB (UM) 1*128kB (M) 2*256kB (UE) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 3*4096kB (M) = 19924kB 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 246 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