rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: (detected by 0, t=10502 jiffies, g=15365, q=477 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294962362-4294951860), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g15365 f0x2 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:27584 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
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:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6039 Comm: syz-executor.3 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__lock_acquire+0x2a4/0x3b30 kernel/locking/lockdep.c:5071
Code: 8d 7e 08 48 89 fa 48 c1 ea 03 66 25 00 e0 44 09 f8 66 41 89 46 20 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 fd 2a 00 00 <48> 8b 84 24 30 01 00 00 49 89 46 08 49 8d 46 10 48 89 c2 48 89 44
RSP: 0018:ffffc90000a18a18 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 1ffff1100443216c RSI: 00000000000000b0 RDI: ffff888022190b60
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 000000000000000f R11: 0000000000000002 R12: ffffe8ffffd68a08
R13: 0000000000000000 R14: ffff888022190b58 R15: 00000000000000b0
FS: 000055555b768480(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32724000 CR3: 000000001fb76000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
do_write_seqcount_begin_nested include/linux/seqlock.h:469 [inline]
do_write_seqcount_begin include/linux/seqlock.h:495 [inline]
psi_account_irqtime+0x2a3/0x510 kernel/sched/psi.c:1016
update_rq_clock_task kernel/sched/core.c:726 [inline]
update_rq_clock kernel/sched/core.c:770 [inline]
update_rq_clock+0x250/0xb30 kernel/sched/core.c:751
ttwu_queue kernel/sched/core.c:4056 [inline]
try_to_wake_up+0x56a/0x13e0 kernel/sched/core.c:4378
signal_wake_up_state+0x79/0x120 kernel/signal.c:773
signal_wake_up include/linux/sched/signal.h:448 [inline]
complete_signal+0x465/0xc10 kernel/signal.c:1065
__send_signal_locked+0x509/0x11c0 kernel/signal.c:1185
do_send_sig_info kernel/signal.c:1301 [inline]
group_send_sig_info+0x2aa/0x300 kernel/signal.c:1451
do_bpf_send_signal+0x9a/0x1d0 kernel/trace/bpf_trace.c:838
irq_work_single+0x1bc/0x260 kernel/irq_work.c:221
irq_work_run_list+0x92/0xc0 kernel/irq_work.c:252
irq_work_run+0x58/0xd0 kernel/irq_work.c:261
__sysvec_irq_work+0x8c/0x410 arch/x86/kernel/irq_work.c:22
instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
sysvec_irq_work+0x90/0xb0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:finish_task_switch.isra.0+0x220/0xcc0 kernel/sched/core.c:5282
Code: a9 0a 00 00 44 8b 0d b7 52 86 0e 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 ae f8 ff ff e8 d9 e6 36 00 fb 65 48 8b 1d 80 89 a5 7e <48> 8d bb f8 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc90003437840 EFLAGS: 00000202
RAX: 0000000000689219 RBX: ffff888022190000 RCX: 1ffffffff1fc85a1
RDX: 0000000000000000 RSI: ffffffff8b2caf60 RDI: ffffffff8b900680
RBP: ffffc90003437888 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8fe46f97 R11: 0000000000000000 R12: ffff8880b933f978
R13: ffff88802208bc00 R14: 0000000000000000 R15: ffff8880b923ec00
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0xf1d/0x5d00 kernel/sched/core.c:6745
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline]
RIP: 0010:tif_need_resched include/linux/thread_info.h:184 [inline]
RIP: 0010:need_resched include/linux/sched.h:2110 [inline]
RIP: 0010:preempt_schedule_common+0x4b/0xc0 kernel/sched/core.c:6932
Code: c3 65 ff 05 2f 76 19 75 65 8b 05 28 76 19 75 25 ff ff ff 7f 83 f8 01 74 29 bf 01 00 00 00 e8 8c 9d ff ff 65 ff 0d 0d 76 19 75 <80> 3b 00 75 5f 48 8b 45 00 a8 08 75 ca 5b 5d 41 5c 41 5d c3 cc cc
RSP: 0018:ffffc90003437b08 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffed1004432000 RCX: fffff52000686f42
RDX: 1ffff110044322cb RSI: ffffffff8b2caf60 RDI: ffff888022191658
RBP: ffff888022190000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8fe46f97 R11: 0000000000000000 R12: ffffffff8100a13a
R13: ffff888022190000 R14: ffffc90003437cd0 R15: 1ffff92000686f78
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194
debug_object_free+0x291/0x500 lib/debugobjects.c:865
futex_wait+0x106/0x380 kernel/futex/waitwake.c:704
do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
__do_sys_futex kernel/futex/syscalls.c:179 [inline]
__se_sys_futex kernel/futex/syscalls.c:160 [inline]
__x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
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: 0033:0x7f8a2287cea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff74c60578 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000000241da RCX: 00007f8a2287cea9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8a229b3f8c
RBP: 000000000002420c R08: 00007f8a235dc080 R09: 0000001000000000
R10: 00007fff74c60660 R11: 0000000000000246 R12: 00007fff74c60660
R13: 00007f8a229b3f8c R14: 0000000000000032 R15: 00007fff74c60680