rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...0: (0 ticks this GP) idle=eb7/1/0x4000000000000000 softirq=179546/179546 fqs=2969
(detected by 1, t=10502 jiffies, g=283989, q=373)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2630 Comm: syz-executor.3 Not tainted 5.18.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mark_lock.part.0+0x182/0x1910 kernel/locking/lockdep.c:4626
Code: 48 c7 43 14 00 00 00 00 48 8b 84 24 30 01 00 00 65 48 2b 04 25 28 00 00 00 0f 85 2b 13 00 00 48 81 c4 38 01 00 00 44 89 d0 5b <5d> 41 5c 41 5d 41 5e 41 5f c3 48 8d 7e 22 48 89 f8 48 c1 e8 03 0f
RSP: 0018:ffffc90000007bb0 EFLAGS: 00000082
RAX: 0000000000000001 RBX: ffff88801e284444 RCX: 1ffffffff2006fee
RDX: dffffc0000000000 RSI: 0000000000000100 RDI: ffffffff90037f70
RBP: 0000000000000100 R08: 0000000000000000 R09: ffffffff9003390f
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801e284488
R13: 0000000000000008 R14: 0000000000000058 R15: ffff88801e2844a8
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 0000000021058000 CR4: 0000000000350ef0
Call Trace:
mark_lock kernel/locking/lockdep.c:4571 [inline]
mark_usage kernel/locking/lockdep.c:4528 [inline]
__lock_acquire+0x8ab/0x56c0 kernel/locking/lockdep.c:4983
lock_acquire kernel/locking/lockdep.c:5641 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [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+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:free_pages_and_swap_cache+0x42/0x90 mm/swap_state.c:319
Code: 31 ff 44 89 e6 e8 7e 85 bc ff 45 85 e4 7e 40 49 be 00 00 00 00 00 fc ff df 4c 89 eb 31 ed e8 45 83 bc ff 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 75 36 48 8b 3b 83 c5 01 48 83 c3 08 e8 28 f9 ff ff
RSP: 0018:ffffc9000306f990 EFLAGS: 00000212
RAX: 1ffff1100f5a8fb5 RBX: ffff88807ad47da8 RCX: 0000000000000000
RDX: ffff88801e283a00 RSI: ffffffff81bc962b RDI: 0000000000000003
RBP: 00000000000001b3 R08: 00000000000001fe R09: 0000000000000000
R10: ffffffff81bc9652 R11: 0000000000000000 R12: 00000000000001fe
R13: ffff88807ad47010 R14: dffffc0000000000 R15: ffffc9000306fa70
tlb_batch_pages_flush mm/mmu_gather.c:50 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:243 [inline]
tlb_flush_mmu mm/mmu_gather.c:250 [inline]
tlb_finish_mmu+0x165/0x8c0 mm/mmu_gather.c:341
exit_mmap+0x1de/0x4a0 mm/mmap.c:3150
__mmput+0x122/0x4b0 kernel/fork.c:1183
mmput+0x56/0x60 kernel/fork.c:1205
exit_mm kernel/exit.c:510 [inline]
do_exit+0xa12/0x2a00 kernel/exit.c:782
do_group_exit+0xd2/0x2f0 kernel/exit.c:925
get_signal+0x22df/0x24c0 kernel/signal.c:2864
arch_do_signal_or_restart+0x82/0x20f0 arch/x86/kernel/signal.c:867
exit_to_user_mode_loop kernel/entry/common.c:166 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1e9c4890e9
Code: Unable to access opcode bytes at RIP 0x7f1e9c4890bf.
RSP: 002b:00007f1e9d562218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f1e9c59bf68 RCX: 00007f1e9c4890e9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1e9c59bf6c
RBP: 00007f1e9c59bf60 R08: 00007fffa9fe1080 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f1e9c59bf6c
R13: 00007fffa9eba8df R14: 00007f1e9d562300 R15: 0000000000022000
rcu: rcu_preempt kthread starved for 4563 jiffies! g283989 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:28728 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1971
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2144
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: 0 Comm: swapper/1 Not tainted 5.18.0-rc3-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:490
print_other_cpu_stall kernel/rcu/tree_stall.h:595 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:741 [inline]
rcu_pending kernel/rcu/tree.c:3923 [inline]
rcu_sched_clock_irq+0x1f7c/0x2150 kernel/rcu/tree.c:2625
update_process_times+0x16d/0x200 kernel/time/timer.c:1788
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: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:645
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:116 [inline]
RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:556
Code: 89 de e8 6d 50 16 f8 84 db 75 ac e8 84 4c 16 f8 e8 ef 94 1c f8 eb 0c e8 78 4c 16 f8 0f 00 2d 61 8a cf 00 e8 6c 4c 16 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 e7 4e 16 f8 48 85 db
RSP: 0018:ffffc90000177d18 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888010e41d00 RSI: ffffffff8962cd04 RDI: 0000000000000000
RBP: ffff888016842064 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817f6218 R11: 0000000000000000 R12: 0000000000000001
R13: ffff888016842000 R14: ffff888016842064 R15: ffff88801886e804
acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:691
cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237
cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3e8/0x590 kernel/sched/idle.c:303
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400
start_secondary+0x265/0x340 arch/x86/kernel/smpboot.c:266
secondary_startup_64_no_verify+0xc3/0xcb
----------------
Code disassembly (best guess):
0: 48 c7 43 14 00 00 00 movq $0x0,0x14(%rbx)
7: 00
8: 48 8b 84 24 30 01 00 mov 0x130(%rsp),%rax
f: 00
10: 65 48 2b 04 25 28 00 sub %gs:0x28,%rax
17: 00 00
19: 0f 85 2b 13 00 00 jne 0x134a
1f: 48 81 c4 38 01 00 00 add $0x138,%rsp
26: 44 89 d0 mov %r10d,%eax
29: 5b pop %rbx
* 2a: 5d pop %rbp <-- trapping instruction
2b: 41 5c pop %r12
2d: 41 5d pop %r13
2f: 41 5e pop %r14
31: 41 5f pop %r15
33: c3 retq
34: 48 8d 7e 22 lea 0x22(%rsi),%rdi
38: 48 89 f8 mov %rdi,%rax
3b: 48 c1 e8 03 shr $0x3,%rax
3f: 0f .byte 0xf