rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (10487 ticks this GP) idle=cee/1/0x4000000000000000 softirq=208339/208362 fqs=0
(t=10500 jiffies g=430417 q=606)
rcu: rcu_preempt kthread starved for 10500 jiffies! g430417 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:28880 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4681 [inline]
__schedule+0x93a/0x26f0 kernel/sched/core.c:5938
schedule+0xd3/0x270 kernel/sched/core.c:6017
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop kernel/rcu/tree.c:1996 [inline]
rcu_gp_kthread+0xd34/0x1980 kernel/rcu/tree.c:2169
kthread+0x3e5/0x4d0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 29866 Comm: syz-executor.5 Not tainted 5.14.0-rc7-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:105
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1d1/0x1d6 kernel/rcu/tree_stall.h:479
print_cpu_stall kernel/rcu/tree_stall.h:623 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:700 [inline]
rcu_pending kernel/rcu/tree.c:3922 [inline]
rcu_sched_clock_irq.cold+0x9a/0x747 kernel/rcu/tree.c:2641
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:49 [inline]
RIP: 0010:unwind_next_frame+0x14da/0x1ce0 arch/x86/kernel/unwind_orc.c:604
Code: 00 0f 85 bf 05 00 00 49 8d 7e 10 4d 8b 66 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 05 00 00 <49> 39 ec 49 8b 46 10 0f 87 d7 f9 ff ff 48 39 e8 0f 86 ce f9 ff ff
RSP: 0018:ffffc90000007698 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff92000000edb RCX: 1ffff92000000ef6
RDX: 1ffff92000000ef0 RSI: ffffc9000284fa48 RDI: ffffc90000007780
RBP: ffffc9000284fa78 R08: ffffffff8de7522e R09: 0000000000000001
R10: fffff52000000ef9 R11: 0000000000086088 R12: ffffc90002848000
R13: ffffc900000077a5 R14: ffffc90000007770 R15: ffffc900000077a4
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x83/0xb0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:2959 [inline]
kmem_cache_alloc_node+0x266/0x3e0 mm/slub.c:2995
__alloc_skb+0x20b/0x340 net/core/skbuff.c:414
skb_copy+0x137/0x2f0 net/core/skbuff.c:1585
mac80211_hwsim_tx_frame_no_nl.isra.0+0xb17/0x1330 drivers/net/wireless/mac80211_hwsim.c:1565
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:flat_send_IPI_mask+0xa/0x50 arch/x86/kernel/apic/apic_flat_64.c:62
Code: e8 fb ac 89 00 48 8b 3c 24 e9 7a ff ff ff e8 3d 2d fd 07 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 b8 00 00 00 00 00 fc ff df <48> 89 fa 48 c1 ea 03 80 3c 02 00 75 08 48 8b 3f e9 81 fe ff ff 48
RSP: 0018:ffffc9000284f4e8 EFLAGS: 00000202
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90014a6c000
RDX: 0000000000000001 RSI: 00000000000000fb RDI: ffffffff898a5df0
RBP: ffff8880b9c52b50 R08: 0000000000000001 R09: ffff8880b9c52b57
R10: ffffffff816a67fa R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000008
smp_call_function_many_cond+0xa33/0xc20 kernel/smp.c:947
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1133
on_each_cpu include/linux/smp.h:71 [inline]
flush_tlb_kernel_range+0x80/0xb0 arch/x86/mm/tlb.c:1001
__purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1670
_vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2073
_vm_unmap_aliases mm/vmalloc.c:2047 [inline]
vm_unmap_aliases+0x47/0x50 mm/vmalloc.c:2096
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1740
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1797 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1943
bpf_jit_binary_lock_ro include/linux/filter.h:892 [inline]
bpf_int_jit_compile+0xe36/0x11e0 arch/x86/net/bpf_jit_comp.c:2338
bpf_prog_select_runtime+0x464/0x6a0 kernel/bpf/core.c:1914
bpf_prog_load+0xe8b/0x21f0 kernel/bpf/syscall.c:2305
__sys_bpf+0x67e/0x5df0 kernel/bpf/syscall.c:4587
__do_sys_bpf kernel/bpf/syscall.c:4691 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4689 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689
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: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f19d4030188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffebf665e0f R14: 00007f19d4030300 R15: 0000000000022000
NMI backtrace for cpu 0
CPU: 0 PID: 29866 Comm: syz-executor.5 Not tainted 5.14.0-rc7-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:105
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:342
print_cpu_stall kernel/rcu/tree_stall.h:625 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:700 [inline]
rcu_pending kernel/rcu/tree.c:3922 [inline]
rcu_sched_clock_irq.cold+0x9f/0x747 kernel/rcu/tree.c:2641
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:49 [inline]
RIP: 0010:unwind_next_frame+0x14da/0x1ce0 arch/x86/kernel/unwind_orc.c:604
Code: 00 0f 85 bf 05 00 00 49 8d 7e 10 4d 8b 66 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 05 00 00 <49> 39 ec 49 8b 46 10 0f 87 d7 f9 ff ff 48 39 e8 0f 86 ce f9 ff ff
RSP: 0018:ffffc90000007698 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff92000000edb RCX: 1ffff92000000ef6
RDX: 1ffff92000000ef0 RSI: ffffc9000284fa48 RDI: ffffc90000007780
RBP: ffffc9000284fa78 R08: ffffffff8de7522e R09: 0000000000000001
R10: fffff52000000ef9 R11: 0000000000086088 R12: ffffc90002848000
R13: ffffc900000077a5 R14: ffffc90000007770 R15: ffffc900000077a4
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x83/0xb0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:2959 [inline]
kmem_cache_alloc_node+0x266/0x3e0 mm/slub.c:2995
__alloc_skb+0x20b/0x340 net/core/skbuff.c:414
skb_copy+0x137/0x2f0 net/core/skbuff.c:1585
mac80211_hwsim_tx_frame_no_nl.isra.0+0xb17/0x1330 drivers/net/wireless/mac80211_hwsim.c:1565
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:flat_send_IPI_mask+0xa/0x50 arch/x86/kernel/apic/apic_flat_64.c:62
Code: e8 fb ac 89 00 48 8b 3c 24 e9 7a ff ff ff e8 3d 2d fd 07 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 b8 00 00 00 00 00 fc ff df <48> 89 fa 48 c1 ea 03 80 3c 02 00 75 08 48 8b 3f e9 81 fe ff ff 48
RSP: 0018:ffffc9000284f4e8 EFLAGS: 00000202
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90014a6c000
RDX: 0000000000000001 RSI: 00000000000000fb RDI: ffffffff898a5df0
RBP: ffff8880b9c52b50 R08: 0000000000000001 R09: ffff8880b9c52b57
R10: ffffffff816a67fa R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000008
smp_call_function_many_cond+0xa33/0xc20 kernel/smp.c:947
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1133
on_each_cpu include/linux/smp.h:71 [inline]
flush_tlb_kernel_range+0x80/0xb0 arch/x86/mm/tlb.c:1001
__purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1670
_vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2073
_vm_unmap_aliases mm/vmalloc.c:2047 [inline]
vm_unmap_aliases+0x47/0x50 mm/vmalloc.c:2096
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1740
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1797 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1943
bpf_jit_binary_lock_ro include/linux/filter.h:892 [inline]
bpf_int_jit_compile+0xe36/0x11e0 arch/x86/net/bpf_jit_comp.c:2338
bpf_prog_select_runtime+0x464/0x6a0 kernel/bpf/core.c:1914
bpf_prog_load+0xe8b/0x21f0 kernel/bpf/syscall.c:2305
__sys_bpf+0x67e/0x5df0 kernel/bpf/syscall.c:4587
__do_sys_bpf kernel/bpf/syscall.c:4691 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4689 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689
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: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f19d4030188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffebf665e0f R14: 00007f19d4030300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 0f add %cl,(%rdi)
2: 85 bf 05 00 00 49 test %edi,0x49000005(%rdi)
8: 8d 7e 10 lea 0x10(%rsi),%edi
b: 4d 8b 66 08 mov 0x8(%r14),%r12
f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
16: fc ff df
19: 48 89 fa mov %rdi,%rdx
1c: 48 c1 ea 03 shr $0x3,%rdx
20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
24: 0f 85 92 05 00 00 jne 0x5bc
* 2a: 49 39 ec cmp %rbp,%r12 <-- trapping instruction
2d: 49 8b 46 10 mov 0x10(%r14),%rax
31: 0f 87 d7 f9 ff ff ja 0xfffffa0e
37: 48 39 e8 cmp %rbp,%rax
3a: 0f 86 ce f9 ff ff jbe 0xfffffa0e