rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (1 GPs behind) idle=5304/1/0x4000000000000000 softirq=152421/152422 fqs=780
rcu: 	(t=10501 jiffies g=231441 q=109 ncpus=2)
rcu: rcu_preempt kthread starved for 8161 jiffies! g231441 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:28240 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 schedule+0xe7/0x1b0 kernel/sched/core.c:6786
 schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1808
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data+0x21/0x90 kernel/kcov.c:236
Code: 2e 0f 1f 84 00 00 00 00 00 65 8b 05 e1 4d 7d 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25 80 b9 03 00 <a9> 00 01 ff 00 74 0e 85 f6 74 59 8b 82 04 16 00 00 85 c0 74 4f 8b
RSP: 0018:ffffc90000007bb8 EFLAGS: 00000206
RAX: 0000000080000102 RBX: 0000000002af31dc RCX: ffffffff88583f1d
RDX: ffffffff8c6957c0 RSI: 0000000000000100 RDI: 0000000000000005
RBP: 000000a7c5ac471b R08: 0000000000000005 R09: 00000000000f4240
R10: 00000000000186a0 R11: 0000000000000000 R12: 00000000000186a0
R13: 0000000000000003 R14: 000000000044b82f R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f72b000 CR3: 000000002211f000 CR4: 00000000003526f0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 pie_calculate_probability+0x2ad/0x850 net/sched/sch_pie.c:345
 fq_pie_timer+0x1da/0x4f0 net/sched/sch_fq_pie.c:387
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
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:72 [inline]
RIP: 0010:__intel_idle_hlt drivers/idle/intel_idle.c:206 [inline]
RIP: 0010:intel_idle_hlt+0x11/0x20 drivers/idle/intel_idle.c:224
Code: 48 89 de 48 c7 c7 20 f6 3f 8d e8 da a1 1d fa e9 51 ff ff ff 0f 1f 44 00 00 f3 0f 1e fa 89 d0 66 90 0f 00 2d 71 9d 9c 00 fb f4 <fa> c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 89 d0 fb
RSP: 0018:ffffffff8c607da0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffe8ffffc09a50 RCX: ffffffff8a31f72e
RDX: 0000000000000001 RSI: ffffffff8d3ff7a0 RDI: ffffe8ffffc09a50
RBP: ffffffff8d3ff7a0 R08: 0000000000000001 R09: ffffed1017306d9d
R10: ffff8880b9836ceb R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8d3ff820 R14: 0000000000000001 R15: 0000000000000000
 cpuidle_enter_state+0x82/0x500 drivers/cpuidle/cpuidle.c:267
 cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
 cpuidle_idle_call kernel/sched/idle.c:215 [inline]
 do_idle+0x315/0x3f0 kernel/sched/idle.c:282
 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379
 rest_init+0x16f/0x2b0 init/main.c:726
 arch_call_rest_init+0x13/0x30 init/main.c:823
 start_kernel+0x39f/0x480 init/main.c:1068
 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:556
 x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:537
 secondary_startup_64_no_verify+0x167/0x16b
 </TASK>
CPU: 1 PID: 19540 Comm: kworker/u4:15 Not tainted 6.5.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x17/0x70 kernel/kcov.c:206
Code: ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 fd 47 7d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 <65> 48 8b 14 25 80 b9 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82
RSP: 0018:ffffc900054df810 EFLAGS: 00000246
RAX: 0000000000000201 RBX: 1f3551c2e5571790 RCX: 0000000000000000
RDX: 1ffff110090569a6 RSI: ffffffff885a03de RDI: ffff8880482b4d30
RBP: 1f3551c2e5571781 R08: 0000000000000006 R09: 1f3551c2e5571790
R10: 1f3551c2e5571740 R11: 0000000000000002 R12: 1f3551c365571741
R13: ffff88802eebd000 R14: ffff88804821b800 R15: ffff888016b06c80
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000004bf7f000 CR4: 00000000003526e0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 get_packet_txtime net/sched/sch_taprio.c:508 [inline]
 taprio_enqueue_one+0x85e/0x1640 net/sched/sch_taprio.c:577
 taprio_enqueue+0x239/0x7e0 net/sched/sch_taprio.c:658
 dev_qdisc_enqueue+0x3f/0x230 net/core/dev.c:3732
 __dev_xmit_skb net/core/dev.c:3821 [inline]
 __dev_queue_xmit+0x2202/0x3f20 net/core/dev.c:4169
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 batadv_send_skb_packet+0x52a/0x6b0 net/batman-adv/send.c:108
 batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:392 [inline]
 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:420 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x708/0x8c0 net/batman-adv/bat_iv_ogm.c:1700
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>