rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10502 jiffies, g=28561, q=279 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294985010-4294974508), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g28561 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:29264 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6421
schedule+0xd2/0x1f0 kernel/sched/core.c:6493
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1907
rcu_gp_fqs_loop+0x1c0/0x840 kernel/rcu/tree.c:2078
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2267
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 3606 Comm: syz-executor.3 Not tainted 5.18.0-rc3-next-20220422-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:516
print_other_cpu_stall kernel/rcu/tree_stall.h:621 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:767 [inline]
rcu_pending kernel/rcu/tree.c:4068 [inline]
rcu_sched_clock_irq+0x2311/0x2370 kernel/rcu/tree.c:2755
update_process_times+0x16d/0x200 kernel/time/timer.c:1811
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1058
Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 23 91 4b 00 eb 07 0f 00 2d da b1 94 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 56 8f 4b 00 8b 74 24 0c
RSP: 0018:ffffc90000ddfb10 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff1b73199
RDX: 0000000000000000 RSI: ffffffff81807171 RDI: ffffffff8134dffd
RBP: ffff8880245ca6c8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81807158 R11: 0000000000000001 R12: 0000000000000000
R13: ffffed10048b94d9 R14: 0000000000000001 R15: ffff8880b9d3ae40
pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
__pv_queued_spin_lock_slowpath+0x8c7/0xb50 kernel/locking/qspinlock.c:511
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock+0x200/0x2a0 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:354 [inline]
task_lock include/linux/sched/task.h:170 [inline]
__get_task_comm+0x23/0x50 fs/exec.c:1219
__set_page_owner_handle mm/page_owner.c:174 [inline]
__set_page_owner+0x253/0x380 mm/page_owner.c:192
prep_new_page mm/page_alloc.c:2394 [inline]
get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4135
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5356
alloc_pages+0x1aa/0x310 mm/mempolicy.c:2273
alloc_slab_page mm/slub.c:1797 [inline]
allocate_slab+0x26c/0x3c0 mm/slub.c:1942
new_slab mm/slub.c:2002 [inline]
___slab_alloc+0x985/0xd90 mm/slub.c:3002
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3089
slab_alloc_node mm/slub.c:3180 [inline]
kmem_cache_alloc_node+0x122/0x3f0 mm/slub.c:3264
__alloc_skb+0x215/0x340 net/core/skbuff.c:414
alloc_skb_fclone include/linux/skbuff.h:1387 [inline]
tcp_stream_alloc_skb+0x66/0x900 net/ipv4/tcp.c:863
tcp_fragment+0x1bc/0x1600 net/ipv4/tcp_output.c:1566
tcp_match_skb_to_sack+0x234/0x370 net/ipv4/tcp_input.c:1335
tcp_sacktag_walk+0xda/0x18a0 net/ipv4/tcp_input.c:1723
tcp_sacktag_write_queue+0x1579/0x31b0 net/ipv4/tcp_input.c:1974
tcp_ack+0x2e5e/0x58f0 net/ipv4/tcp_input.c:3824
tcp_rcv_established+0x5e8/0x2030 net/ipv4/tcp_input.c:5961
tcp_v4_do_rcv+0x66c/0x980 net/ipv4/tcp_ipv4.c:1660
tcp_v4_rcv+0x380f/0x3bc0 net/ipv4/tcp_ipv4.c:2074
ip_protocol_deliver_rcu+0xa3/0xb30 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x2ee/0x4c0 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1cb/0x2f0 net/ipv4/ip_input.c:437
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:557
deliver_skb net/core/dev.c:2187 [inline]
deliver_ptype_list_skb net/core/dev.c:2202 [inline]
__netif_receive_skb_core+0x1028/0x3a10 net/core/dev.c:5391
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5433
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5549
process_backlog+0x3a0/0x7c0 net/core/dev.c:5877
__napi_poll+0xb3/0x6e0 net/core/dev.c:6443
napi_poll net/core/dev.c:6510 [inline]
net_rx_action+0x8ec/0xc60 net/core/dev.c:6597
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
common_interrupt+0xa9/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:640
RIP: 0010:memset_erms+0xb/0x10 arch/x86/lib/memset_64.S:65
Code: 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 01 01
RSP: 0018:ffffc90002f4f400 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8880124e49b8
RBP: ffff8880124e49a8 R08: 0000000000000001 R09: ffff8880124e49b7
R10: ffffed100249c936 R11: 0000000000000001 R12: 000000000000000e
R13: 0000000000000010 R14: ffff8880124e4988 R15: 0000000000000007
strscpy_pad+0x62/0x70 lib/string_helpers.c:792
__get_task_comm+0x35/0x50 fs/exec.c:1221
__set_page_owner_handle mm/page_owner.c:174 [inline]
__set_page_owner+0x253/0x380 mm/page_owner.c:192
prep_new_page mm/page_alloc.c:2394 [inline]
get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4135
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5356
alloc_pages+0x1aa/0x310 mm/mempolicy.c:2273
__get_free_pages+0x8/0x40 mm/page_alloc.c:5405
kasan_populate_vmalloc_pte mm/kasan/shadow.c:271 [inline]
kasan_populate_vmalloc_pte+0x25/0x160 mm/kasan/shadow.c:262
apply_to_pte_range mm/memory.c:2626 [inline]
apply_to_pmd_range mm/memory.c:2670 [inline]
apply_to_pud_range mm/memory.c:2706 [inline]
apply_to_p4d_range mm/memory.c:2742 [inline]
__apply_to_page_range+0x686/0x1030 mm/memory.c:2776
alloc_vmap_area+0xb0f/0x1f00 mm/vmalloc.c:1594
__get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2455
__vmalloc_node_range+0x264/0x13c0 mm/vmalloc.c:3121
__vmalloc_node mm/vmalloc.c:3226 [inline]
vzalloc+0x67/0x80 mm/vmalloc.c:3299
do_ip6t_get_ctl+0x60f/0xa10 net/ipv6/netfilter/ip6_tables.c:817
nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:116
ipv6_getsockopt+0x1be/0x270 net/ipv6/ipv6_sockglue.c:1504
tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:4292
__sys_getsockopt+0x21f/0x6a0 net/socket.c:2256
__do_sys_getsockopt net/socket.c:2271 [inline]
__se_sys_getsockopt net/socket.c:2268 [inline]
__x64_sys_getsockopt+0xba/0x150 net/socket.c:2268
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7feff968a70a
Code: 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff4295cb18 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 00007feff968a70a
RDX: 0000000000000041 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007fff4295cb40 R08: 00007fff4295cb3c R09: ff00000000000000
R10: 00007fff4295cba0 R11: 0000000000000212 R12: 00007fff4295cba0
R13: 0000000000000003 R14: 00007fff4295cb3c R15: 00007feff9769b60
----------------
Code disassembly (best guess):
0: fa cli
1: 83 e2 07 and $0x7,%edx
4: 38 d0 cmp %dl,%al
6: 7f 04 jg 0xc
8: 84 c0 test %al,%al
a: 75 63 jne 0x6f
c: 0f b6 07 movzbl (%rdi),%eax
f: 40 38 c6 cmp %al,%sil
12: 74 35 je 0x49
14: 48 83 c4 10 add $0x10,%rsp
18: c3 retq
19: c3 retq
1a: e8 23 91 4b 00 callq 0x4b9142
1f: eb 07 jmp 0x28
21: 0f 00 2d da b1 94 08 verw 0x894b1da(%rip) # 0x894b202
28: fb sti
29: f4 hlt
* 2a: 48 83 c4 10 add $0x10,%rsp <-- trapping instruction
2e: c3 retq
2f: 89 74 24 0c mov %esi,0xc(%rsp)
33: 48 89 3c 24 mov %rdi,(%rsp)
37: e8 56 8f 4b 00 callq 0x4b8f92
3c: 8b 74 24 0c mov 0xc(%rsp),%esi