rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=3864/1/0x4000000000000000 softirq=37972/37972 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5840/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=28097, q=120 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 13268 Comm: syz.3.1561 Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline]
RIP: 0010:lock_release+0x129/0x6f0 kernel/locking/lockdep.c:5862
Code: 0f 85 d6 02 00 00 65 4c 8b 35 33 6f 98 7e 49 8d be dc 0a 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 50 05 00 00 41
RSP: 0018:ffffc90000a18c20 EFLAGS: 00000803
RAX: dffffc0000000000 RBX: 1ffff92000143186 RCX: ffffffff816b6969
RDX: 0000000000000000 RSI: ffffffff8bd1e1c0 RDI: ffff888032ebd35c
RBP: ffffffff9060f1f4 R08: 0000000000000000 R09: fffffbfff20c17da
R10: ffffffff9060bed7 R11: 0000000000000002 R12: ffffffff9aa64f30
R13: ffff88803089a340 R14: ffff888032ebc880 R15: ffffffff9aa64f10
FS: 00007f613cdd46c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f613cdd3fb8 CR3: 00000000784c2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x1a/0x80 kernel/locking/spinlock.c:194
debug_object_activate+0x2e6/0x4a0 lib/debugobjects.c:836
debug_hrtimer_activate kernel/time/hrtimer.c:428 [inline]
debug_activate kernel/time/hrtimer.c:469 [inline]
enqueue_hrtimer+0x25/0x3c0 kernel/time/hrtimer.c:1076
__run_hrtimer kernel/time/hrtimer.c:1756 [inline]
__hrtimer_run_queues+0x903/0xae0 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 66 4d 39 f6 48 89 df e8 ce cc 39 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 55 c2 2a f6 65 8b 05 86 bd d1 74 85 c0 74 16 5b
RSP: 0018:ffffc90004e47a28 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff8880358ed488 RCX: 1ffffffff20c0f91
RDX: 0000000000000000 RSI: ffffffff8b6cdee0 RDI: ffffffff8bd1e240
RBP: 0000000000000283 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9060bed7 R11: 0000000000000000 R12: dffffc0000000000
R13: 19e88c94660226c6 R14: 180bedfdee9802c6 R15: ffff8880358ed488
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
timerfd_clock_was_set+0x164/0x310 fs/timerfd.c:111
clock_was_set+0x67c/0x850 kernel/time/hrtimer.c:969
timekeeping_inject_offset+0x402/0x520 kernel/time/timekeeping.c:1480
do_adjtimex+0x369/0xaa0 kernel/time/timekeeping.c:2579
do_clock_adjtime kernel/time/posix-timers.c:1165 [inline]
__do_sys_clock_adjtime+0x173/0x290 kernel/time/posix-timers.c:1177
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f613bf80809
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f613cdd4058 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f613c146080 RCX: 00007f613bf80809
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f613bff393e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f613c146080 R15: 00007ffcfee94078
task:syz-executor state:R running task stack:21920 pid:5840 tgid:5840 ppid:5830 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
copy_pte_range mm/memory.c:1200 [inline]
copy_pmd_range mm/memory.c:1261 [inline]
copy_pud_range mm/memory.c:1298 [inline]
copy_p4d_range mm/memory.c:1322 [inline]
copy_page_range+0x1e15/0x57d0 mm/memory.c:1420
dup_mmap kernel/fork.c:745 [inline]
dup_mm kernel/fork.c:1675 [inline]
copy_mm kernel/fork.c:1724 [inline]
copy_process+0x7d29/0x8cc0 kernel/fork.c:2375
kernel_clone+0xfd/0x960 kernel/fork.c:2787
__do_sys_clone+0xba/0x100 kernel/fork.c:2930
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f331b577053
RSP: 002b:00007ffd96ca37f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f331b577053
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00005555580b87d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000d7198 R14: 00000000000d6c62 R15: 00007ffd96ca3980
rcu: rcu_preempt kthread starved for 10502 jiffies! g28097 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:27520 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 98 20 d4 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 88 c0 ad 00 fb f4 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffffff8de07d70 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b2f9b99
RDX: 0000000000000001 RSI: ffff8881446a4000 RDI: ffff8881446a4064
RBP: ffff8881446a4064 R08: 0000000000000001 R09: ffffed10170c6fed
R10: ffff8880b8637f6b R11: 0000000000000000 R12: ffff8881482c2800
R13: ffffffff8ee176a0 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8432a5c715 CR3: 000000002a61e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:699
cpuidle_enter_state+0xaa/0x4f0 drivers/cpuidle/cpuidle.c:268
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:389
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x310/0x3f0 kernel/sched/idle.c:325
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423
rest_init+0x16b/0x2b0 init/main.c:747
start_kernel+0x3e4/0x4d0 init/main.c:1102
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x148