rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (3 ticks this GP) idle=6e7c/1/0x4000000000000000 softirq=8078/8078 fqs=0
rcu: 	(detected by 1, t=10502 jiffies, g=9685, q=844 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5202 Comm: syz-fuzzer Not tainted 6.9.0-rc4-syzkaller-00329-g48cf398f15fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
RIP: 0010:debug_activate kernel/time/hrtimer.c:478 [inline]
RIP: 0010:enqueue_hrtimer+0x24/0x3c0 kernel/time/hrtimer.c:1090
Code: 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 89 d5 49 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 ef 50 12 00 4c 89 f7 <48> c7 c6 00 b8 cc 8b e8 10 00 33 03 0f 1f 44 00 00 e8 d6 50 12 00
RSP: 0018:ffffc90000007d28 EFLAGS: 00000046
RAX: ffffffff8183b071 RBX: 0000000000000000 RCX: ffff888021cd3c00
RDX: 0000000080010001 RSI: ffff8880b942c980 RDI: ffff88802d571340
RBP: 0000000000000000 R08: ffffffff8183850c R09: fffff52000000f88
R10: dffffc0000000000 R11: fffff52000000f88 R12: dffffc0000000000
R13: ffff8880b942c980 R14: ffff88802d571340 R15: ffff8880b942c880
FS:  000000c000750890(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31c32000 CR3: 0000000079f1e000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1709 [inline]
 __hrtimer_run_queues+0x6d5/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x170/0x200 kernel/softirq.c:389
Code: 8b e8 f4 b4 25 0a 65 66 8b 05 14 ac a9 7e 66 85 c0 75 5d bf 01 00 00 00 e8 6d 7f 0b 00 e8 68 16 43 00 fb 65 8b 05 d8 ab a9 7e <85> c0 75 05 e8 b7 8a a6 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c
RSP: 0018:ffffc900049ffa20 EFLAGS: 00000282
RAX: 0000000080000000 RBX: 1ffff9200093ff48 RCX: ffffffff8172edda
RDX: dffffc0000000000 RSI: ffffffff8bcab8a0 RDI: ffffffff8c1f8560
RBP: ffffc900049ffac8 R08: ffffffff92f325bf R09: 1ffffffff25e64b7
R10: dffffc0000000000 R11: fffffbfff25e64b8 R12: dffffc0000000000
R13: 1ffff9200093ff4c R14: ffffc900049ffa60 R15: 0000000000000201
 lock_sock include/net/sock.h:1671 [inline]
 tcp_sendmsg+0x22/0x50 net/ipv4/tcp.c:1341
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:745
 sock_write_iter+0x2dd/0x400 net/socket.c:1160
 call_write_iter include/linux/fs.h:2110 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa86/0xcb0 fs/read_write.c:590
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x40720e
Code: 48 83 ec 38 e8 13 00 00 00 48 83 c4 38 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48
RSP: 002b:000000c000934db0 EFLAGS: 00000216 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000040720e
RDX: 00000000000000f0 RSI: 000000c00047c200 RDI: 0000000000000003
RBP: 000000c000934df0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 000000c000934f30
R13: 0000000000000001 R14: 000000c0000061a0 R15: 000000000000000f
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g9685 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=5186
rcu: rcu_preempt kthread starved for 10502 jiffies! g9685 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:24496 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
 kthread+0x2f2/0x390 kernel/kthread.c:388
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>