rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...0: (1 GPs behind) idle=25f/1/0x4000000000000000 softirq=145819/145820 fqs=3416
(detected by 0, t=10502 jiffies, g=177257, q=1918 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2014 Comm: syz-executor.1 Not tainted 5.19.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_preemption_disabled+0x2/0x170 lib/smp_processor_id.c:13
Code: 1f 44 00 00 e8 af 72 29 f8 65 48 8b 3c 25 80 6f 02 00 e8 c1 35 e3 f7 eb 99 0f 1f 44 00 00 0f 0b e9 23 ff ff ff cc cc cc 41 56 <41> 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 75
RSP: 0018:ffffc900001f0d28 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff815e52e1
RDX: dffffc0000000000 RSI: ffffffff8a284d40 RDI: ffffffff8a284d80
RBP: 1ffff9200003e1ae R08: 0000000000000000 R09: ffffffff8dbb7857
R10: fffffbfff1b76f0a R11: 0000000000000001 R12: 0000000000000001
R13: ffff8880b9b2a600 R14: ffff8880b9b2a500 R15: ffffffff8788e480
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f13dbd9d090 CR3: 000000000ba8e000 CR4: 0000000000350ee0
Call Trace:
rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:341 [inline]
rcu_is_watching+0xe/0xb0 kernel/rcu/tree.c:1138
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x560/0x780 kernel/locking/lockdep.c:5676
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x16/0x70 kernel/locking/spinlock.c:194
__run_hrtimer kernel/time/hrtimer.c:1681 [inline]
__hrtimer_run_queues+0x51a/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:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:unwind_next_frame+0x14d2/0x1cc0 arch/x86/kernel/unwind_orc.c:617
Code: f3 fa ff ff 48 39 d8 0f 86 ea fa ff ff 48 8d 53 08 48 39 c2 0f 96 c1 48 39 d5 0f 92 c0 84 c1 0f 84 d2 fa ff ff 48 39 5c 24 18 <0f> 82 c7 fa ff ff 49 8d 7d 28 48 b8 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffffc9000321f210 EFLAGS: 00000293
RAX: ffffc90003220001 RBX: ffffc9000321f368 RCX: 0000000000000001
RDX: ffffc9000321f370 RSI: ffffc9000321f358 RDI: ffffc9000321f2e0
RBP: ffffc90003218000 R08: ffffffff8e37bf98 R09: ffffc9000321f304
R10: fffff52000643e65 R11: ffffc9000321f360 R12: ffffc9000321f305
R13: ffffc9000321f2d0 R14: ffffc9000321f358 R15: ffffffff8e37bf9c
__unwind_start+0x51b/0x800 arch/x86/kernel/unwind_orc.c:712
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x5c/0xe0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
save_stack+0x151/0x1e0 mm/page_owner.c:127
__reset_page_owner+0x5d/0x180 mm/page_owner.c:148
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1371 [inline]
free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1421
free_unref_page_prepare mm/page_alloc.c:3343 [inline]
free_unref_page_list+0x16f/0xf80 mm/page_alloc.c:3475
release_pages+0xff1/0x2290 mm/swap.c:980
tlb_batch_pages_flush+0xa8/0x1a0 mm/mmu_gather.c:58
zap_pte_range mm/memory.c:1518 [inline]
zap_pmd_range mm/memory.c:1567 [inline]
zap_pud_range mm/memory.c:1596 [inline]
zap_p4d_range mm/memory.c:1617 [inline]
unmap_page_range+0x202b/0x3710 mm/memory.c:1638
unmap_single_vma+0x196/0x360 mm/memory.c:1686
unmap_vmas+0x18c/0x310 mm/memory.c:1723
exit_mmap+0x1c4/0x4a0 mm/mmap.c:3162
__mmput+0x122/0x4b0 kernel/fork.c:1187
mmput+0x56/0x60 kernel/fork.c:1208
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+0x2542/0x2600 kernel/signal.c:2857
arch_do_signal_or_restart+0x82/0x2300 arch/x86/kernel/signal.c:869
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+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f13dbc89109
Code: Unable to access opcode bytes at RIP 0x7f13dbc890df.
RSP: 002b:00007f13dcda5218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f13dbd9bf68 RCX: 00007f13dbc89109
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f13dbd9bf6c
RBP: 00007f13dbd9bf60 R08: 00007fff3fb3f080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f13dbd9bf6c
R13: 00007fff3faed67f R14: 00007f13dcda5300 R15: 0000000000022000
rcu: rcu_preempt kthread starved for 3669 jiffies! g177257 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:27568 pid: 17 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1999
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2187
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.19.0-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: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:518
print_other_cpu_stall kernel/rcu/tree_stall.h:623 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:771 [inline]
rcu_pending kernel/rcu/tree.c:3977 [inline]
rcu_sched_clock_irq+0x2316/0x2370 kernel/rcu/tree.c:2675
update_process_times+0x11a/0x1a0 kernel/time/timer.c:1839
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1481
__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:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
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:112 [inline]
RIP: 0010:acpi_idle_do_entry+0x1c9/0x240 drivers/acpi/processor_idle.c:554
Code: 89 de e8 ea 53 00 f8 84 db 75 98 e8 e1 57 00 f8 e8 cc a7 06 f8 eb 0c e8 d5 57 00 f8 0f 00 2d ce ef b9 00 e8 c9 57 00 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 14 54 00 f8 48 85 db
RSP: 0018:ffffffff8ba07d38 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffffff8babc940 RSI: ffffffff897a1a37 RDI: 0000000000000000
RBP: ffff888016686864 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888016686800 R14: ffff888016686864 R15: ffff88801b6dc804
acpi_idle_enter+0x369/0x510 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
rest_init+0x169/0x270 init/main.c:726
arch_call_rest_init+0xf/0x14 init/main.c:882
start_kernel+0x46e/0x48f init/main.c:1137
secondary_startup_64_no_verify+0xce/0xdb
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 44 00 00 add %r8b,(%rax)
3: e8 af 72 29 f8 callq 0xf82972b7
8: 65 48 8b 3c 25 80 6f mov %gs:0x26f80,%rdi
f: 02 00
11: e8 c1 35 e3 f7 callq 0xf7e335d7
16: eb 99 jmp 0xffffffb1
18: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
1d: 0f 0b ud2
1f: e9 23 ff ff ff jmpq 0xffffff47
24: cc int3
25: cc int3
26: cc int3
27: 41 56 push %r14
* 29: 41 55 push %r13 <-- trapping instruction
2b: 49 89 f5 mov %rsi,%r13
2e: 41 54 push %r12
30: 55 push %rbp
31: 48 89 fd mov %rdi,%rbp
34: 53 push %rbx
35: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
3a: 65 gs
3b: 44 rex.R
3c: 8b .byte 0x8b
3d: 25 .byte 0x25
3e: 75 .byte 0x75