rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (10474 ticks this GP) idle=d91/1/0x4000000000000000 softirq=98153/98154 fqs=137
(t=10502 jiffies g=160861 q=2526)
rcu: rcu_preempt kthread starved for 10191 jiffies! g160861 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:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14665 Comm: syz-executor.4 Not tainted 5.15.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kasan_check_range+0xe/0x180 mm/kasan/generic.c:188
Code: f5 00 00 00 e9 93 4c 3b 02 0f 1f 00 48 89 f2 be f8 00 00 00 e9 83 4c 3b 02 0f 1f 00 48 85 f6 0f 84 70 01 00 00 49 89 f9 41 54 <44> 0f b6 c2 49 01 f1 55 53 0f 82 18 01 00 00 48 b8 ff ff ff ff ff
RSP: 0018:ffffc90000dc0568 EFLAGS: 00000002
RAX: 0000000000000001 RBX: ffff8880b9d223d8 RCX: ffffffff815b0246
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fcfa928
RBP: 000000000000005c R08: 1ffff110074454dd R09: ffffffff8fcfa928
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88803a22a6f0
R13: ffff88803a229c80 R14: 0000000000046000 R15: 00000000000c605c
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000027dd9000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:199 [inline]
check_wait_context kernel/locking/lockdep.c:4688 [inline]
__lock_acquire+0x3e6/0x54a0 kernel/locking/lockdep.c:4965
lock_acquire kernel/locking/lockdep.c:5625 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0x32/0x50 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x243/0xe50 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: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:ffffc90000dc0a30 EFLAGS: 00000206
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff18f1d80
RDX: 0000000000000001 RSI: 0000000000000102 RDI: 0000000000000000
RBP: ffffffff8c78ec00 R08: 0000000000000001 R09: ffffffff8fcfa987
R10: 0000000000000001 R11: 0000000000000080 R12: 000000000000702c
R13: fffffbfff18f1d80 R14: 0000000000000001 R15: ffff8880b9d32840
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]
mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1516
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:PageTail include/linux/page-flags.h:198 [inline]
RIP: 0010:PageCompound include/linux/page-flags.h:203 [inline]
RIP: 0010:page_mapcount include/linux/mm.h:875 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1363 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1481 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1510 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1531 [inline]
RIP: 0010:unmap_page_range+0x13a7/0x2a10 mm/memory.c:1552
Code: 00 f0 ff 0b 0f 94 c3 31 ff 89 de e8 43 89 ca ff 84 db 0f 84 ab f6 ff ff e8 f6 82 ca ff 48 89 ef e8 5e 94 f3 ff e9 99 f6 ff ff e4 82 ca ff 4c 89 e0 48 c1 e8 03 42 80 3c 30 00 0f 85 7d 12 00
RSP: 0018:ffffc90008be7a00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88803a229c80
RDX: 0000000000000000 RSI: ffff88803a229c80 RDI: 0000000000000003
RBP: ffffea000222e5c0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81ab8438 R11: 0000000000000000 R12: ffffea000222e5c8
R13: 0000000000000000 R14: dffffc0000000000 R15: 00007f0b69dc8000
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
__do_sys_exit_group kernel/exit.c:933 [inline]
__se_sys_exit_group kernel/exit.c:931 [inline]
__x64_sys_exit_group+0x3a/0x50 kernel/exit.c:931
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: 0033:0x7f0b6b550739
Code: Unable to access opcode bytes at RIP 0x7f0b6b55070f.
RSP: 002b:00007f0b68ac5f58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f0b68ac60f0 RCX: 00007f0b6b550739
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043
RBP: 00007f0b6b5a9b47 R08: 000000000000001e R09: 00007f0b68ac60f0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0b6b59a6a8
R13: 0000000000000016 R14: 00000000000000a8 R15: 0000000000000000
NMI backtrace for cpu 0
CPU: 0 PID: 14618 Comm: syz-executor.0 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:write_comp_data kernel/kcov.c:218 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x22/0x80 kernel/kcov.c:270
Code: 10 c3 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 40 f0 01 00 48 89 ce 4c 8b 54 24 08 e8 4e f1 ff ff <84> c0 74 51 48 8b 81 20 15 00 00 44 8b 81 1c 15 00 00 48 8b 10 49
RSP: 0018:ffffc90000007b90 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88809194b2a0 RCX: ffff8880166cd580
RDX: 0000000000000000 RSI: ffff8880166cd580 RDI: 0000000000000003
RBP: dffffc0000000000 R08: 0000000000000032 R09: 0000000000000000
R10: ffffffff8536972d R11: 0000000000000000 R12: ffff888151f2b640
R13: ffff88809230b4d0 R14: ffff88809230b2a0 R15: 0000000000000000
mac80211_hwsim_tx_frame_no_nl.isra.0+0x7dd/0x1330 drivers/net/wireless/mac80211_hwsim.c:1527
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:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197
Code: 01 f0 4d 89 03 e9 63 fd ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 00 <65> 8b 05 39 e4 8b 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90008b179f8 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 800000003d3c2007 RCX: 800000003d3c2007
RDX: 0000000000000000 RSI: ffff8880166cd580 RDI: 0000000000000003
RBP: ffffea0000f56ec0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81ab7fd9 R11: 0000000000000000 R12: 800000003d3c2027
R13: ffffea0000f56e88 R14: dffffc0000000000 R15: 00000000200d2000
get_current arch/x86/include/asm/current.h:15 [inline]
need_resched include/linux/sched.h:2107 [inline]
zap_pte_range mm/memory.c:1329 [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+0x8a6/0x2a10 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
__do_sys_exit_group kernel/exit.c:933 [inline]
__se_sys_exit_group kernel/exit.c:931 [inline]
__x64_sys_exit_group+0x3a/0x50 kernel/exit.c:931
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: 0033:0x7fd02270e739
Code: Unable to access opcode bytes at RIP 0x7fd02270e70f.
RSP: 002b:00007fd01fc83f58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fd01fc840f0 RCX: 00007fd02270e739
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043
RBP: 00007fd022767b47 R08: 000000000000001e R09: 00007fd01fc840f0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd0227586a8
R13: 0000000000000016 R14: 00000000000000a8 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: f5 cmc
1: 00 00 add %al,(%rax)
3: 00 e9 add %ch,%cl
5: 93 xchg %eax,%ebx
6: 4c 3b 02 cmp (%rdx),%r8
9: 0f 1f 00 nopl (%rax)
c: 48 89 f2 mov %rsi,%rdx
f: be f8 00 00 00 mov $0xf8,%esi
14: e9 83 4c 3b 02 jmpq 0x23b4c9c
19: 0f 1f 00 nopl (%rax)
1c: 48 85 f6 test %rsi,%rsi
1f: 0f 84 70 01 00 00 je 0x195
25: 49 89 f9 mov %rdi,%r9
28: 41 54 push %r12
* 2a: 44 0f b6 c2 movzbl %dl,%r8d <-- trapping instruction
2e: 49 01 f1 add %rsi,%r9
31: 55 push %rbp
32: 53 push %rbx
33: 0f 82 18 01 00 00 jb 0x151
39: 48 rex.W
3a: b8 ff ff ff ff mov $0xffffffff,%eax
3f: ff .byte 0xff