CPU: 0 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
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: 	(detected by 1, t=10651 jiffies, g=201009, q=4)
 <IRQ>
rcu: All QSes seen, last rcu_preempt kthread activity 10646 (4295053101-4295042455), jiffies_till_next_fqs=1, root ->qsmask 0x0
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor0   R  running task    15656  9527   5978 0x80100004
Call Trace:
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
 <IRQ>
 sched_show_task.cold.84+0x2b6/0x30a kernel/sched/core.c:5293
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
 print_other_cpu_stall.cold.66+0x7dd/0x8bb kernel/rcu/tree.c:1286
 check_cpu_stall kernel/rcu/tree.c:1415 [inline]
 rcu_pending kernel/rcu/tree.c:2961 [inline]
 rcu_check_callbacks+0xfd7/0x13f0 kernel/rcu/tree.c:2506
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
RSP: 0000:ffff880192547738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801bffb4a80 RDI: 0000000000000286
RBP: ffff8801925477a0 R08: ffff8801bffb4200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0xdf8/0x1000
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:console_unlock+0x102f/0x1190 kernel/printk/printk.c:2418
Code: b0 fb 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 36 48 83 3d 61 79 ec 07 00 74 25 e8 5a 08 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 9a f8 ff ff 4c 89 ef e8 1f 56 5d 00 e9 f2 fb ff
RSP: 0000:ffff8801c3315e40 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d1fb6140 RBX: 0000000000000200 RCX: 1ffff1003a3f6d4b
RDX: 0000000000000000 RSI: ffffffff81658256 RDI: 0000000000000293
RBP: ffff8801c3315fb0 R08: ffff8801d1fb6a58 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d1fb6140 R12: dffffc0000000000
R13: ffffffff8490e220 R14: dffffc0000000000 R15: ffffffff89b4e990
 vprintk_emit+0x391/0x990 kernel/printk/printk.c:1922
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:1997
 dump_unreclaimable_slab.cold.22+0xd8/0xe6 mm/slab_common.c:1392
 dump_header+0x7cc/0xf72 mm/oom_kill.c:447
rcu: rcu_preempt kthread starved for 10646 jiffies! g201009 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    21384    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2831 [inline]
 __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
 schedule+0xfe/0x460 kernel/sched/core.c:3516
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3519 [inline]
 __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4240
 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
 page_cache_read mm/filemap.c:2312 [inline]
 filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor0 cpuset=syz0 mems_allowed=0
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
 __do_fault+0x100/0x6b0 mm/memory.c:2996
 do_read_fault mm/memory.c:3408 [inline]
 do_fault mm/memory.c:3534 [inline]
 handle_pte_fault mm/memory.c:3765 [inline]
 __handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420023e48 EFLAGS: 00010202
RAX: 000000c4261c76e0 RBX: 000000c42029d801 RCX: 000000c423350f38
RDX: 000000c4261c76e0 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420023ed8 R08: 00007ffc9c59a0b0 R09: 00007ffc9c59a080
R10: 0000000000031178 R11: 000000000000041a R12: 0000000000000001
R13: 000000c42c0d7d40 R14: 0000000000000001 R15: 0000000000000000
CPU: 1 PID: 9527 Comm: syz-executor0 Not tainted 4.20.0-rc1+ #141
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
active_anon:52697 inactive_anon:188 isolated_anon:0
 active_file:12 inactive_file:9 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9373 slab_unreclaimable:1453329
 mapped:49154 shmem:4338 pagetables:670 bounce:0
 free:13627 free_pcp:121 free_cma:0
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
Node 0 active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:17352kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:24820kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:224kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13780kB min:37364kB low:46704kB high:56044kB active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2680kB bounce:0kB free_pcp:260kB local_pcp:4kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 3*8kB (UMH) 3*16kB (M) 3*32kB (UM) 5*64kB (UMH) 4*128kB (M) 5*256kB (UMH) 4*512kB (UM) 4*1024kB (UMH) 2*2048kB (M) 3*4096kB (M) = 24820kB
Node 0 Normal: 2275*4kB (UMEH) 409*8kB (UME) 88*16kB (UM) 2*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13844kB
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
4359 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
aoe: skb alloc failure
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 __do_cache_alloc mm/slab.c:3356 [inline]
 slab_alloc mm/slab.c:3384 [inline]
 kmem_cache_alloc+0x1f8/0x730 mm/slab.c:3552
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0xdf8/0x1000
CPU: 0 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor0 cpuset=syz0 mems_allowed=0
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:console_unlock+0x102f/0x1190 kernel/printk/printk.c:2418
Code: b0 fb 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 36 48 83 3d 61 79 ec 07 00 74 25 e8 5a 08 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 9a f8 ff ff 4c 89 ef e8 1f 56 5d 00 e9 f2 fb ff
RSP: 0000:ffff8801c3315e40 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d1fb6140 RBX: 0000000000000200 RCX: 1ffff1003a3f6d4b
RDX: 0000000000000000 RSI: ffffffff81658256 RDI: 0000000000000293
RBP: ffff8801c3315fb0 R08: ffff8801d1fb6a58 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d1fb6140 R12: dffffc0000000000
R13: ffffffff8490e220 R14: dffffc0000000000 R15: ffffffff89b4e990
 vprintk_emit+0x391/0x990 kernel/printk/printk.c:1922
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:1997
 dump_unreclaimable_slab.cold.22+0xd8/0xe6 mm/slab_common.c:1392
 dump_header+0x7cc/0xf72 mm/oom_kill.c:447
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3519 [inline]
 __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4240
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
 page_cache_read mm/filemap.c:2312 [inline]
 filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
 __do_fault+0x100/0x6b0 mm/memory.c:2996
 do_read_fault mm/memory.c:3408 [inline]
 do_fault mm/memory.c:3534 [inline]
 handle_pte_fault mm/memory.c:3765 [inline]
 __handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420023e48 EFLAGS: 00010202
RAX: 000000c4261c76e0 RBX: 000000c42029d801 RCX: 000000c423350f38
RDX: 000000c4261c76e0 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420023ed8 R08: 00007ffc9c59a0b0 R09: 00007ffc9c59a080
R10: 0000000000031178 R11: 000000000000041a R12: 0000000000000001
R13: 000000c42c0d7d40 R14: 0000000000000001 R15: 0000000000000000
CPU: 1 PID: 9527 Comm: syz-executor0 Not tainted 4.20.0-rc1+ #141
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:52697 inactive_anon:188 isolated_anon:0
 active_file:12 inactive_file:9 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9373 slab_unreclaimable:1453329
 mapped:49154 shmem:4338 pagetables:670 bounce:0
 free:13627 free_pcp:121 free_cma:0
Call Trace:
Node 0 active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:17352kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:24820kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:224kB local_pcp:0kB free_cma:0kB
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13780kB min:37364kB low:46704kB high:56044kB active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2680kB bounce:0kB free_pcp:260kB local_pcp:4kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 3*8kB (UMH) 3*16kB (M) 3*32kB (UM) 5*64kB (UMH) 4*128kB (M) 5*256kB (UMH) 4*512kB (UM) 4*1024kB (UMH) 2*2048kB (M) 3*4096kB (M) = 24820kB
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
Node 0 Normal: 2275*4kB (UMEH) 409*8kB (UME) 88*16kB (UM) 2*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13844kB
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
4359 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
aoe: skb alloc failure
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
RSP: 0000:ffff880192547738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801bffb4a80 RDI: 0000000000000286
RBP: ffff8801925477a0 R08: ffff8801bffb4200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0xdf8/0x1000
CPU: 0 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
syz-executor0 cpuset=syz0 mems_allowed=0
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:console_unlock+0x102f/0x1190 kernel/printk/printk.c:2418
Code: b0 fb 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 36 48 83 3d 61 79 ec 07 00 74 25 e8 5a 08 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 9a f8 ff ff 4c 89 ef e8 1f 56 5d 00 e9 f2 fb ff
RSP: 0000:ffff8801c3315e40 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d1fb6140 RBX: 0000000000000200 RCX: 1ffff1003a3f6d4b
RDX: 0000000000000000 RSI: ffffffff81658256 RDI: 0000000000000293
RBP: ffff8801c3315fb0 R08: ffff8801d1fb6a58 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d1fb6140 R12: dffffc0000000000
R13: ffffffff8490e220 R14: dffffc0000000000 R15: ffffffff89b4e990
 vprintk_emit+0x391/0x990 kernel/printk/printk.c:1922
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:1997
 dump_unreclaimable_slab.cold.22+0xd8/0xe6 mm/slab_common.c:1392
 dump_header+0x7cc/0xf72 mm/oom_kill.c:447
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3519 [inline]
 __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4240
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
 page_cache_read mm/filemap.c:2312 [inline]
 filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
 __do_fault+0x100/0x6b0 mm/memory.c:2996
 do_read_fault mm/memory.c:3408 [inline]
 do_fault mm/memory.c:3534 [inline]
 handle_pte_fault mm/memory.c:3765 [inline]
 __handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420023e48 EFLAGS: 00010202
RAX: 000000c4261c76e0 RBX: 000000c42029d801 RCX: 000000c423350f38
RDX: 000000c4261c76e0 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420023ed8 R08: 00007ffc9c59a0b0 R09: 00007ffc9c59a080
R10: 0000000000031178 R11: 000000000000041a R12: 0000000000000001
R13: 000000c42c0d7d40 R14: 0000000000000001 R15: 0000000000000000
CPU: 1 PID: 9527 Comm: syz-executor0 Not tainted 4.20.0-rc1+ #141
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:52697 inactive_anon:188 isolated_anon:0
 active_file:12 inactive_file:9 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9373 slab_unreclaimable:1453329
 mapped:49154 shmem:4338 pagetables:670 bounce:0
 free:13627 free_pcp:121 free_cma:0
Call Trace:
Node 0 active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:17352kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:24820kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:224kB local_pcp:0kB free_cma:0kB
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13780kB min:37364kB low:46704kB high:56044kB active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2680kB bounce:0kB free_pcp:260kB local_pcp:4kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 3*8kB (UMH) 3*16kB (M) 3*32kB (UM) 5*64kB (UMH) 4*128kB (M) 5*256kB (UMH) 4*512kB (UM) 4*1024kB (UMH) 2*2048kB (M) 3*4096kB (M) = 24820kB
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
Node 0 Normal: 2275*4kB (UMEH) 409*8kB (UME) 88*16kB (UM) 2*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13844kB
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
4359 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
aoe: skb alloc failure
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
RSP: 0000:ffff880192547738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801bffb4a80 RDI: 0000000000000286
RBP: ffff8801925477a0 R08: ffff8801bffb4200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0xdf8/0x1000
CPU: 0 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
syz-executor0 cpuset=syz0 mems_allowed=0
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:console_unlock+0x102f/0x1190 kernel/printk/printk.c:2418
Code: b0 fb 51 89 48 89 f8 48 c1 e8 03 42 80 3c 20 00 75 36 48 83 3d 61 79 ec 07 00 74 25 e8 5a 08 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 9a f8 ff ff 4c 89 ef e8 1f 56 5d 00 e9 f2 fb ff
RSP: 0000:ffff8801c3315e40 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d1fb6140 RBX: 0000000000000200 RCX: 1ffff1003a3f6d4b
RDX: 0000000000000000 RSI: ffffffff81658256 RDI: 0000000000000293
RBP: ffff8801c3315fb0 R08: ffff8801d1fb6a58 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d1fb6140 R12: dffffc0000000000
R13: ffffffff8490e220 R14: dffffc0000000000 R15: ffffffff89b4e990
 vprintk_emit+0x391/0x990 kernel/printk/printk.c:1922
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:1997
 dump_unreclaimable_slab.cold.22+0xd8/0xe6 mm/slab_common.c:1392
 dump_header+0x7cc/0xf72 mm/oom_kill.c:447
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3519 [inline]
 __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4240
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
 page_cache_read mm/filemap.c:2312 [inline]
 filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
 __do_fault+0x100/0x6b0 mm/memory.c:2996
 do_read_fault mm/memory.c:3408 [inline]
 do_fault mm/memory.c:3534 [inline]
 handle_pte_fault mm/memory.c:3765 [inline]
 __handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x404068
Code: Bad RIP value.
RSP: 002b:000000c420023e48 EFLAGS: 00010202
RAX: 000000c4261c76e0 RBX: 000000c42029d801 RCX: 000000c423350f38
RDX: 000000c4261c76e0 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 000000c420023ed8 R08: 00007ffc9c59a0b0 R09: 00007ffc9c59a080
R10: 0000000000031178 R11: 000000000000041a R12: 0000000000000001
R13: 000000c42c0d7d40 R14: 0000000000000001 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 9527 Comm: syz-executor0 Not tainted 4.20.0-rc1+ #141
Mem-Info:
active_anon:52697 inactive_anon:188 isolated_anon:0
 active_file:12 inactive_file:9 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9373 slab_unreclaimable:1453329
 mapped:49154 shmem:4338 pagetables:670 bounce:0
 free:13627 free_pcp:121 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:17352kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 <IRQ>
lowmem_reserve[]: 0 2818 6321 6321
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
Node 0 DMA32 free:24820kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:224kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 3503 3503
 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
Node 0 Normal free:13780kB min:37364kB low:46704kB high:56044kB active_anon:210788kB inactive_anon:752kB active_file:48kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2680kB bounce:0kB free_pcp:260kB local_pcp:4kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 3*4kB (M) 3*8kB (UMH) 3*16kB (M) 3*32kB (UM) 5*64kB (UMH) 4*128kB (M) 5*256kB (UMH) 4*512kB (UM) 4*1024kB (UMH) 2*2048kB (M) 3*4096kB (M) = 24820kB
Node 0 Normal: 2275*4kB (UMEH) 409*8kB (UME) 88*16kB (UM) 2*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13844kB
 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
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
4359 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342854 pages reserved
0 pages cma reserved
aoe: skb alloc failure
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0