RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014992e0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001 R13: 000000000000004e R14: 000000000000000e R15: 00000000000054c6 CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc2+ #99 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: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 (detected by 0, t=10542 jiffies, g=43781, q=10) rcu: All QSes seen, last rcu_preempt kthread activity 10524 (4294984986-4294974462), jiffies_till_next_fqs=1, root ->qsmask 0x0 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 syz-fuzzer R running task 10440 5326 5319 0x80000008 Call Trace: __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296 print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430 check_cpu_stall kernel/rcu/tree.c:1557 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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 __build_skb+0xab/0x430 net/core/skbuff.c:281 __napi_alloc_skb+0x1d6/0x310 net/core/skbuff.c:482 napi_alloc_skb include/linux/skbuff.h:2679 [inline] page_to_skb.isra.42+0xee/0x960 drivers/net/virtio_net.c:377 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 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 receive_mergeable+0x15af/0x3c40 drivers/net/virtio_net.c:900 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1054 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 Code: 40 7e 0f 85 32 ff ff ff e8 e5 d2 3e ff e9 28 ff ff ff e8 fc 2f c3 ff 48 83 3d 9c 7e b0 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 f2 7a RSP: 0000:ffff8801dac073d8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b2361ab RDX: 0000000000000000 RSI: ffff8801d91b0d60 RDI: 0000000000000282 RBP: ffff8801dac07448 R08: ffff8801d91b0d58 R09: 0000000000000002 R10: 0000000000000000 R11: ffff8801d91b0440 R12: ffff8801d9a04040 R13: ffff8801d9a04040 R14: 0000000000000000 R15: 0000000000000282 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 receive_buf+0xb4c/0x3380 drivers/net/virtio_net.c:1009 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:1374 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+0x30b/0xad8 kernel/softirq.c:292 virtnet_receive drivers/net/virtio_net.c:1298 [inline] virtnet_poll+0x421/0x105f drivers/net/virtio_net.c:1385 napi_poll net/core/dev.c:6230 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6296 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801d95f6238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d91b0440 RBX: 0000000000000293 RCX: 1ffff1003b2361a6 RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293 RBP: ffff8801d95f6240 R08: ffff8801d91b0d30 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d91b0440 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff897229a0 dump_stack+0x195/0x2b4 lib/dump_stack.c:108 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 dump_header+0x27b/0xf72 mm/oom_kill.c:441 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:44590 inactive_anon:371 isolated_anon:0 active_file:29 inactive_file:5 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9594 slab_unreclaimable:1475916 mapped:41138 shmem:379 pagetables:615 bounce:0 free:13701 free_pcp:222 free_cma:0 Node 0 active_anon:178360kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB 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 lowmem_reserve[]: 0 2815 6318 6318 Node 0 DMA32 free:25040kB min:30036kB low:37544kB high:45052kB active_anon:164kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887240kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952 0 3503 3503 Node 0 Normal free:13856kB min:37376kB low:46720kB high:56064kB active_anon:178196kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5344kB pagetables:2460kB bounce:0kB free_pcp:640kB local_pcp:228kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112 (U) 2*64kB (U) 1*128kB (U) __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 2*4kB (UM) 3*8kB (UM) 1*16kB (M) 3*32kB (UM) 1*64kB (M) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 4*128kB (M) 3*256kB (M) 4*512kB (M) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25040kB Node 0 Normal: 890*4kB (UMEH) 533*8kB alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 (UMEH) 245*16kB (UMEH) alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 57*32kB (UMEH) 1*64kB (H) 2*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 0*4096kB = 13888kB 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 414 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 343324 pages reserved 0 pages cma reserved syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor0 cpuset= syz0 mems_allowed=0 CPU: 1 PID: 17192 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #99 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+0x1c4/0x2b4 lib/dump_stack.c:113 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 __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+0x91/0x8c0 mm/slab.c:2677 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 fallback_alloc+0x203/0x2e0 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:1283 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010206 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 RAX: ffffffffffffff92 RBX: 000000003b973a7e RCX: 000000000045ddf3 bpf_prog_bebbfe2050753572+0x1fe/0x1000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014992e0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001 R13: 000000000000004e R14: 000000000000000e R15: 00000000000054c6 rcu: rcu_preempt kthread starved for 10524 jiffies! g43781 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 23064 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194 syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor0 cpuset= syz0 mems_allowed=0 CPU: 1 PID: 17192 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #99 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+0x1c4/0x2b4 lib/dump_stack.c:113 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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:1283 kthread+0x35a/0x420 kernel/kthread.c:246 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0x1fe/0x1000 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 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 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5326 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #99 Mem-Info: active_anon:44590 inactive_anon:371 isolated_anon:0 active_file:29 inactive_file:5 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9594 slab_unreclaimable:1475916 mapped:41138 shmem:379 pagetables:615 bounce:0 free:13701 free_pcp:222 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:178360kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 0 2815 6318 6318 Node 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 DMA32 free:25040kB min:30036kB low:37544kB high:45052kB active_anon:164kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887240kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13856kB min:37376kB low:46720kB high:56064kB active_anon:178196kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5344kB pagetables:2460kB bounce:0kB free_pcp:640kB local_pcp:228kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 3*4096kB (M) = 15908kB Node 0 DMA32: 2*4kB (UM) 3*8kB (UM) __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+0x91/0x8c0 mm/slab.c:2677 1*16kB (M) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 3*32kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (UM) 1*64kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 4*128kB (M) 3*256kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (M) 4*512kB (M) 3*1024kB (UM) 3*2048kB (M) alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 3*4096kB aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374 (M) = 25040kB Node 0 Normal: 890*4kB (UMEH) 533*8kB (UMEH) discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 245*16kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (UMEH) 57*32kB (UMEH) 1*64kB (H) 2*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13888kB 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 414 total pagecache pages 0 pages in swap cache expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 343324 pages reserved 0 pages cma reserved syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor0 cpuset= syz0 mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801d95f6238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d91b0440 RBX: 0000000000000293 RCX: 1ffff1003b2361a6 RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293 RBP: ffff8801d95f6240 R08: ffff8801d91b0d30 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d91b0440 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff897229a0 dump_stack+0x195/0x2b4 lib/dump_stack.c:108 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010206 RAX: ffffffffffffff92 RBX: 000000003b973a7e RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014992e0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001 R13: 000000000000004e R14: 000000000000000e R15: 00000000000054c6 CPU: 1 PID: 17192 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #99 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+0x1c4/0x2b4 lib/dump_stack.c:113 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-fuzzer cpuset= / mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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:1283 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0x1fe/0x1000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5326 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #99 Mem-Info: active_anon:44590 inactive_anon:371 isolated_anon:0 active_file:29 inactive_file:5 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9594 slab_unreclaimable:1475916 mapped:41138 shmem:379 pagetables:615 bounce:0 free:13701 free_pcp:222 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:178360kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 Call Trace: DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 2815 6318 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 6318 Node 0 DMA32 free:25040kB min:30036kB low:37544kB high:45052kB active_anon:164kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887240kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 0 0 3503 3503 Node 0 Normal free:13856kB min:37376kB low:46720kB high:56064kB active_anon:178196kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5344kB pagetables:2460kB bounce:0kB free_pcp:640kB local_pcp:228kB 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: 2*4kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (UM) 3*8kB (UM) 1*16kB (M) 3*32kB (UM) 1*64kB (M) 4*128kB __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+0x91/0x8c0 mm/slab.c:2677 (M) 3*256kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (M) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*512kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 3*1024kB (UM) 3*2048kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (M) 3*4096kB (M) = 25040kB Node 0 Normal: 890*4kB (UMEH) alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 533*8kB (UMEH) aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374 245*16kB (UMEH) 57*32kB (UMEH) 1*64kB discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 (H) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 2*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13888kB 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 414 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 343324 pages reserved 0 pages cma reserved syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 syz-executor0 cpuset=syz0 mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801d95f6238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d91b0440 RBX: 0000000000000293 RCX: 1ffff1003b2361a6 RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293 RBP: ffff8801d95f6240 R08: ffff8801d91b0d30 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d91b0440 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff897229a0 dump_stack+0x195/0x2b4 lib/dump_stack.c:108 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c42001fea0 EFLAGS: 00010206 RAX: ffffffffffffff92 RBX: 000000003b973a7e RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014992e0 RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001 R13: 000000000000004e R14: 000000000000000e R15: 00000000000054c6 CPU: 1 PID: 17192 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #99 aoe: skb alloc failure Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 syz-fuzzer cpuset= / warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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:1283 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0x1fe/0x1000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5326 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #99 Mem-Info: active_anon:44590 inactive_anon:371 isolated_anon:0 active_file:29 inactive_file:5 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9594 slab_unreclaimable:1475916 mapped:41138 shmem:379 pagetables:615 bounce:0 free:13733 free_pcp:222 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:178360kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164552kB dirty:0kB writeback:0kB shmem:1516kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 163840kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 2815 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 6318 6318 Node 0 DMA32 free:25040kB min:30036kB low:37544kB high:45052kB active_anon:164kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887240kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13984kB min:37376kB low:46720kB high:56064kB active_anon:178196kB inactive_anon:1484kB active_file:116kB inactive_file:20kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5184kB pagetables:2460kB bounce:0kB free_pcp:640kB local_pcp:228kB 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: __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 2*4kB (UM) 3*8kB (UM) 1*16kB (M) 3*32kB (UM) 1*64kB (M) __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+0x91/0x8c0 mm/slab.c:2677 4*128kB (M) 3*256kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (M) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*512kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 3*1024kB (UM) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 3*2048kB (M) 3*4096kB (M) = 25040kB Node 0 Normal: 890*4kB (UMEH) 533*8kB alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 (UMEH) aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374 245*16kB (UMEH) 62*32kB (UMEH) 1*64kB discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 (H) 2*128kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14048kB 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 414 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 343324 pages reserved 0 pages cma reserved syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 syz-executor0 cpuset=syz0 mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore+0x4a/0x52 arch/x86/include/asm/paravirt.h:788 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 d9 68 09 fa 48 83 3d 19 6f b9 01 00 75 07 e8 9a 14 c6 f9 0f 0b e8 93 14 c6 f9 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 4c 89 45 d0 e8 8d 68 09 fa 4c 8b 45 d0 e9 RSP: 0000:ffff8801d95f6238 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801d91b0440 RBX: 0000000000000293 RCX: 1ffff1003b2361a6 RDX: 0000000000000000 RSI: ffffffff87b8ba9d RDI: 0000000000000293 RBP: ffff8801d95f6240 R08: ffff8801d91b0d30 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d91b0440 R12: 0000000000000293 R13: 0000000000000200 R14: 0000000000000000 R15: ffffffff897229a0 dump_stack+0x195/0x2b4 lib/dump_stack.c:108 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390