rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (10414 ticks this GP) idle=d8f/1/0x4000000000000000 softirq=271508/271509 fqs=24
(t=10500 jiffies g=529657 q=1105)
rcu: rcu_preempt kthread starved for 10189 jiffies! g529657 f0x0 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:28696 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4940 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6287
schedule+0xd3/0x270 kernel/sched/core.c:6366
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x800 kernel/rcu/tree.c:1957
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2130
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 1
CPU: 1 PID: 12404 Comm: syz-executor.5 Not tainted 5.15.0-rc2-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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 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:481
print_cpu_stall kernel/rcu/tree_stall.h:625 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3880 [inline]
rcu_sched_clock_irq.cold+0x98/0x746 kernel/rcu/tree.c:2599
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: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:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:ieee80211_rx_h_mgmt_check net/mac80211/rx.c:3193 [inline]
RIP: 0010:ieee80211_rx_handlers+0x3b04/0xb400 net/mac80211/rx.c:3946
Code: e8 03 42 0f b6 04 20 84 c0 74 08 3c 03 0f 8e e6 71 00 00 48 8b 44 24 30 bf 03 00 00 00 8b a8 00 14 00 00 89 ee e8 4c 6a e9 f8 <83> fd 03 0f 84 e8 2b 00 00 e8 fe 62 e9 f8 48 8b 44 24 18 48 c1 e8
RSP: 0018:ffffc90000dc08e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000080 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff888039380000 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000000
R10: ffffffff888ca8d4 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000004c R14: ffff888074304500 R15: 0000000000000000
ieee80211_invoke_rx_handlers net/mac80211/rx.c:3982 [inline]
ieee80211_prepare_and_rx_handle+0x21e5/0x5020 net/mac80211/rx.c:4696
__ieee80211_rx_handle_packet net/mac80211/rx.c:4794 [inline]
ieee80211_rx_list+0x976/0x27d0 net/mac80211/rx.c:4978
ieee80211_rx_napi+0xdb/0x3d0 net/mac80211/rx.c:5001
ieee80211_rx include/net/mac80211.h:4571 [inline]
ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235
tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:783
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 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:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_is_held_type+0xfd/0x140 kernel/locking/lockdep.c:5673
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 9e 0e cd 76 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 0f 0b 48
RSP: 0018:ffffc900066cf740 EFLAGS: 00000292
RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffffff8b97fda0 R08: 0000000000000000 R09: ffff8880b9d32a0b
R10: ffffed10173a6541 R11: 0000000000000000 R12: ffff888039380000
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff8880393809f8
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_rss_stat+0x1af/0x290 include/trace/events/kmem.h:366
mm_trace_rss_stat mm/memory.c:172 [inline]
add_mm_counter include/linux/mm.h:1939 [inline]
add_mm_rss_vec mm/memory.c:502 [inline]
zap_pte_range mm/memory.c:1416 [inline]
zap_pmd_range mm/memory.c:1481 [inline]
zap_pud_range mm/memory.c:1510 [inline]
zap_p4d_range mm/memory.c:1531 [inline]
unmap_page_range+0x10c0/0x2a10 mm/memory.c:1552
unmap_single_vma+0x198/0x310 mm/memory.c:1597
unmap_vmas+0x16d/0x2f0 mm/memory.c:1629
exit_mmap+0x1d0/0x630 mm/mmap.c:3171
__mmput+0x122/0x4b0 kernel/fork.c:1115
mmput+0x58/0x60 kernel/fork.c:1136
exit_mm kernel/exit.c:501 [inline]
do_exit+0xabc/0x2a30 kernel/exit.c:812
do_group_exit+0x125/0x310 kernel/exit.c:922
get_signal+0x47f/0x2160 kernel/signal.c:2868
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:865
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3f8a2fa709
Code: Unable to access opcode bytes at RIP 0x7f3f8a2fa6df.
RSP: 002b:00007f3f87871218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f3f8a3fef68 RCX: 00007f3f8a2fa709
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f3f8a3fef68
RBP: 00007f3f8a3fef60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3f8a3fef6c
R13: 00007f3f8a932b2f R14: 00007f3f87871300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 12404 Comm: syz-executor.5 Not tainted 5.15.0-rc2-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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 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:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3880 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2599
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: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:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:ieee80211_rx_h_mgmt_check net/mac80211/rx.c:3193 [inline]
RIP: 0010:ieee80211_rx_handlers+0x3b04/0xb400 net/mac80211/rx.c:3946
Code: e8 03 42 0f b6 04 20 84 c0 74 08 3c 03 0f 8e e6 71 00 00 48 8b 44 24 30 bf 03 00 00 00 8b a8 00 14 00 00 89 ee e8 4c 6a e9 f8 <83> fd 03 0f 84 e8 2b 00 00 e8 fe 62 e9 f8 48 8b 44 24 18 48 c1 e8
RSP: 0018:ffffc90000dc08e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000080 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff888039380000 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000000
R10: ffffffff888ca8d4 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000004c R14: ffff888074304500 R15: 0000000000000000
ieee80211_invoke_rx_handlers net/mac80211/rx.c:3982 [inline]
ieee80211_prepare_and_rx_handle+0x21e5/0x5020 net/mac80211/rx.c:4696
__ieee80211_rx_handle_packet net/mac80211/rx.c:4794 [inline]
ieee80211_rx_list+0x976/0x27d0 net/mac80211/rx.c:4978
ieee80211_rx_napi+0xdb/0x3d0 net/mac80211/rx.c:5001
ieee80211_rx include/net/mac80211.h:4571 [inline]
ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235
tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:783
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 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:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_is_held_type+0xfd/0x140 kernel/locking/lockdep.c:5673
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 9e 0e cd 76 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 0f 0b 48
RSP: 0018:ffffc900066cf740 EFLAGS: 00000292
RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffffff8b97fda0 R08: 0000000000000000 R09: ffff8880b9d32a0b
R10: ffffed10173a6541 R11: 0000000000000000 R12: ffff888039380000
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff8880393809f8
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_rss_stat+0x1af/0x290 include/trace/events/kmem.h:366
mm_trace_rss_stat mm/memory.c:172 [inline]
add_mm_counter include/linux/mm.h:1939 [inline]
add_mm_rss_vec mm/memory.c:502 [inline]
zap_pte_range mm/memory.c:1416 [inline]
zap_pmd_range mm/memory.c:1481 [inline]
zap_pud_range mm/memory.c:1510 [inline]
zap_p4d_range mm/memory.c:1531 [inline]
unmap_page_range+0x10c0/0x2a10 mm/memory.c:1552
unmap_single_vma+0x198/0x310 mm/memory.c:1597
unmap_vmas+0x16d/0x2f0 mm/memory.c:1629
exit_mmap+0x1d0/0x630 mm/mmap.c:3171
__mmput+0x122/0x4b0 kernel/fork.c:1115
mmput+0x58/0x60 kernel/fork.c:1136
exit_mm kernel/exit.c:501 [inline]
do_exit+0xabc/0x2a30 kernel/exit.c:812
do_group_exit+0x125/0x310 kernel/exit.c:922
get_signal+0x47f/0x2160 kernel/signal.c:2868
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:865
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3f8a2fa709
Code: Unable to access opcode bytes at RIP 0x7f3f8a2fa6df.
RSP: 002b:00007f3f87871218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f3f8a3fef68 RCX: 00007f3f8a2fa709
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f3f8a3fef68
RBP: 00007f3f8a3fef60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3f8a3fef6c
R13: 00007f3f8a932b2f R14: 00007f3f87871300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: e8 03 42 0f b6 callq 0xb60f4208
5: 04 20 add $0x20,%al
7: 84 c0 test %al,%al
9: 74 08 je 0x13
b: 3c 03 cmp $0x3,%al
d: 0f 8e e6 71 00 00 jle 0x71f9
13: 48 8b 44 24 30 mov 0x30(%rsp),%rax
18: bf 03 00 00 00 mov $0x3,%edi
1d: 8b a8 00 14 00 00 mov 0x1400(%rax),%ebp
23: 89 ee mov %ebp,%esi
25: e8 4c 6a e9 f8 callq 0xf8e96a76
* 2a: 83 fd 03 cmp $0x3,%ebp <-- trapping instruction
2d: 0f 84 e8 2b 00 00 je 0x2c1b
33: e8 fe 62 e9 f8 callq 0xf8e96336
38: 48 8b 44 24 18 mov 0x18(%rsp),%rax
3d: 48 rex.W
3e: c1 .byte 0xc1
3f: e8 .byte 0xe8