rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=5d54/1/0x4000000000000000 softirq=54547/54548 fqs=615
rcu: 	(detected by 1, t=10502 jiffies, g=93397, q=254 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 20890 Comm: syz-executor.0 Not tainted 6.7.0-rc5-next-20231212-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:taprio_set_budgets+0x209/0x310 net/sched/sch_taprio.c:677
Code: d8 de f8 41 39 ee 7e 65 89 6c 24 08 e8 00 de de f8 48 63 f5 48 83 fe 0f 0f 87 a6 00 00 00 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 <0f> 85 87 00 00 00 48 8b 44 24 10 4d 8b 65 00 80 38 00 75 6d 48 8b
RSP: 0018:ffffc90000007d10 EFLAGS: 00000046
RAX: 1ffff1100f73d300 RBX: ffff88807b9e9880 RCX: ffffffff88a9429d
RDX: ffff88803fbb9dc0 RSI: 0000000000000000 RDI: ffff88807c6db2e0
RBP: 0000000000000000 R08: ffff88802138a130 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002
R13: ffff88807b9e9800 R14: ffff88807c6db340 R15: dffffc0000000000
FS:  00007fe20e9796c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002004e030 CR3: 000000007db52000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 advance_sched+0x5e1/0xc60 net/sched/sch_taprio.c:988
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x20c/0xc20 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x10c/0x410 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data+0x11/0x80 kernel/kcov.c:236
Code: 8b 05 e3 a0 7b 7e 48 8b 80 f0 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 49 89 d2 49 89 f8 49 89 f1 65 48 8b 15 bf a0 7b 7e <65> 8b 05 c0 a0 7b 7e a9 00 01 ff 00 74 0f f6 c4 01 74 59 8b 82 fc
RSP: 0018:ffffc90015c07cc0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff886c8236
RDX: ffff88803fbb9dc0 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000013b8
R13: 0000000000000000 R14: 000000002004eec0 R15: 0000000000010106
 do_recvmmsg+0x4a6/0x740 net/socket.c:2969
 __sys_recvmmsg net/socket.c:3016 [inline]
 __do_sys_recvmmsg net/socket.c:3039 [inline]
 __se_sys_recvmmsg net/socket.c:3032 [inline]
 __x64_sys_recvmmsg+0x235/0x290 net/socket.c:3032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fe20dc7cba9
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:00007fe20e9790c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fe20dd9bf80 RCX: 00007fe20dc7cba9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007fe20dcc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe20dd9bf80 R15: 00007ffe708b7808
 </TASK>
rcu: rcu_preempt kthread starved for 9034 jiffies! g93397 f0x0 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:27792 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5399 [inline]
 __schedule+0xf15/0x5c80 kernel/sched/core.c:6726
 __schedule_loop kernel/sched/core.c:6801 [inline]
 schedule+0xe7/0x270 kernel/sched/core.c:6816
 schedule_timeout+0x136/0x290 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1631
 rcu_gp_kthread+0x245/0x380 kernel/rcu/tree.c:1830
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.7.0-rc5-next-20231212-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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:acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:113
Code: 08 ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 05 38 c5 7a 75 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 28 9a b1 00 fb f4 <fa> c3 0f 1f 40 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb
RSP: 0018:ffffc90000187d58 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8a88dd45
RDX: 0000000000000001 RSI: ffff888016ace800 RDI: ffff888016ace864
RBP: ffff888016ace864 R08: 0000000000000001 R09: ffffed1017326d2d
R10: ffff8880b993696b R11: 0000000000000000 R12: ffff888018aee000
R13: ffffffff8dd22fc0 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8a8f19d988 CR3: 0000000078048000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:707
 cpuidle_enter_state+0x83/0x500 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+0x314/0x3f0 kernel/sched/idle.c:312
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:410
 start_secondary+0x20e/0x2a0 arch/x86/kernel/smpboot.c:336
 secondary_startup_64_no_verify+0x166/0x16b
 </TASK>