rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (10490 ticks this GP) idle=d77/1/0x4000000000000000 softirq=163630/163641 fqs=2
(t=10501 jiffies g=329285 q=21)
rcu: rcu_preempt kthread starved for 10490 jiffies! g329285 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:28736 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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8102 Comm: syz-executor.1 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rb_erase+0x25/0x1210 lib/rbtree.c:441
Code: 00 00 00 66 90 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 49 89 fd 48 83 c7 08 48 89 fa 41 54 48 c1 ea 03 55 53 <48> 83 ec 18 80 3c 02 00 0f 85 b5 0d 00 00 49 8d 7d 10 4d 8b 75 08
RSP: 0018:ffffc90000007da0 EFLAGS: 00000802
RAX: dffffc0000000000 RBX: ffff8880898b5910 RCX: 0000000000000000
RDX: 1ffff11011316b23 RSI: ffff8880b9c22490 RDI: ffff8880898b5918
RBP: ffff8880b9c22490 R08: ffff8880b9c22da0 R09: 0000000000000001
R10: ffffffff83f5608c R11: 0000000000000000 R12: ffff8880b9c22498
R13: ffff8880898b5910 R14: ffff8880b9c223c0 R15: ffff8880b9c22490
FS: 00007fcf57bb6700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f824000 CR3: 0000000018433000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
rb_erase_cached include/linux/rbtree.h:126 [inline]
timerqueue_del+0x7f/0x140 lib/timerqueue.c:57
__remove_hrtimer+0xa1/0x2a0 kernel/time/hrtimer.c:1116
__run_hrtimer kernel/time/hrtimer.c:1665 [inline]
__hrtimer_run_queues+0x4ea/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+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3ba/0xb40 kernel/locking/qspinlock.c:508
Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f
RSP: 0018:ffffc9000912f500 EFLAGS: 00000206
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff17538e0
RDX: 0000000000000001 RSI: ffffffff817c4a01 RDI: ffffffff81334591
RBP: ffffffff8ba9c700 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817c49c9 R11: 0000000000000000 R12: 00000000000051ec
R13: fffffbfff17538e0 R14: 0000000000000001 R15: ffff8880b9c327c0
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [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+0x200/0x2b0 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:363 [inline]
preload_this_cpu_lock mm/vmalloc.c:1488 [inline]
alloc_vmap_area+0x1dd/0x1e00 mm/vmalloc.c:1530
__get_vm_area_node.constprop.0+0x128/0x380 mm/vmalloc.c:2411
__vmalloc_node_range+0x12a/0x9e0 mm/vmalloc.c:2998
module_alloc+0x73/0x90 arch/x86/kernel/module.c:75
bpf_jit_binary_alloc+0xa5/0x180 kernel/bpf/core.c:874
bpf_int_jit_compile+0x450/0x11e0 arch/x86/net/bpf_jit_comp.c:2320
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:00007fcf57bb6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffc0775ce2f R14: 00007fcf57bb6300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 8099 Comm: syz-executor.1 Not tainted 5.14.0-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+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:mac80211_hwsim_tx_frame_no_nl.isra.0+0x77b/0x1330 drivers/net/wireless/mac80211_hwsim.c:1527
Code: 00 00 00 c6 84 24 98 00 00 00 00 74 bb e8 fd f0 3f fc 48 8d bb ac 3c 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 <38> d0 7f 08 84 c0 0f 85 36 09 00 00 44 0f b6 bb ac 3c 00 00 31 ff
RSP: 0018:ffffc90000dc0ba0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88808064b2a0 RCX: 0000000000000100
RDX: 0000000000000004 RSI: ffffffff85363043 RDI: ffff88808064ef4c
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff85363079 R11: 0000000000000000 R12: ffff8880955318c0
R13: ffff888077d134d0 R14: ffff888077d132a0 R15: 0000000000000000
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:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
__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:free_unref_page+0x328/0x690 mm/page_alloc.c:3433
Code: 33 77 b3 81 48 89 ef e8 16 f7 a7 ff 48 85 db 0f 85 cd 00 00 00 9c 58 f6 c4 02 0f 85 86 01 00 00 48 85 db 74 01 fb 48 83 c4 10 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc900090ff4d0 EFLAGS: 00000282
RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1f9f98a
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff8880b9d2d5c0 R08: 0000000000000001 R09: ffffffff8fcfb8e7
R10: 0000000000000001 R11: 0000000000086089 R12: ffff8880b9d2d5e8
R13: 0000000000000000 R14: ffffffff902498a0 R15: 0000000000000000
kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:375
apply_to_pte_range mm/memory.c:2532 [inline]
apply_to_pmd_range mm/memory.c:2576 [inline]
apply_to_pud_range mm/memory.c:2612 [inline]
apply_to_p4d_range mm/memory.c:2648 [inline]
__apply_to_page_range+0x694/0x1080 mm/memory.c:2682
kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:485
__purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1692
_vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2095
_vm_unmap_aliases mm/vmalloc.c:2069 [inline]
vm_unmap_aliases+0x47/0x50 mm/vmalloc.c:2118
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:890 [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:00007fcf57bd7188 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: 00007ffc0775ce2f R14: 00007fcf57bd7300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 66 90 add %ah,-0x70(%rsi)
5: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
c: fc ff df
f: 41 57 push %r15
11: 49 89 f7 mov %rsi,%r15
14: 41 56 push %r14
16: 41 55 push %r13
18: 49 89 fd mov %rdi,%r13
1b: 48 83 c7 08 add $0x8,%rdi
1f: 48 89 fa mov %rdi,%rdx
22: 41 54 push %r12
24: 48 c1 ea 03 shr $0x3,%rdx
28: 55 push %rbp
29: 53 push %rbx
* 2a: 48 83 ec 18 sub $0x18,%rsp <-- trapping instruction
2e: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
32: 0f 85 b5 0d 00 00 jne 0xded
38: 49 8d 7d 10 lea 0x10(%r13),%rdi
3c: 4d 8b 75 08 mov 0x8(%r13),%r14