rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 ticks this GP) idle=1054/1/0x4000000000000000 softirq=15340/15340 fqs=0
rcu: 	(detected by 0, t=10503 jiffies, g=9613, q=479 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6557 Comm: dhcpcd Not tainted 6.12.0-syzkaller-05517-g5dfd7d940094 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
RIP: 0010:rcu_is_watching+0x3a/0xb0 kernel/rcu/tree.c:737
Code: e8 0b 02 5f 0a 89 c3 83 f8 08 73 7a 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 50 7a 54 8e 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 f7 e8 fc c5 84 00 48 c7 c3 d8 7e 03 00 49 03 1e 48 89
RSP: 0018:ffffc90000a18c50 EFLAGS: 00000046
RAX: 1ffffffff1ca8f4b RBX: 0000000000000001 RCX: ffff88806acb1e00
RDX: ffff88806acb1e00 RSI: ffffffff8c820840 RDI: ffffffff8c820800
RBP: 0000000000000001 R08: ffffffff89dcbbb2 R09: 1ffffffff28a8d10
R10: dffffc0000000000 R11: fffffbfff28a8d11 R12: dffffc0000000000
R13: ffff8880788e8c08 R14: ffffffff8e547a58 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556271f69680 CR3: 000000000e938000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 advance_sched+0xa3b/0xca0 net/sched/sch_taprio.c:985
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:mas_next_slot+0x9ff/0xea0 lib/maple_tree.c:4728
Code: 8d 9d 80 00 00 00 48 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 ef e8 cf e6 30 f6 48 8b 6d 00 48 8b 44 24 60 42 0f b6 04 30 <84> c0 48 8b 14 24 0f 85 79 03 00 00 0f b6 02 48 8d 1c c3 48 89 d8
RSP: 0018:ffffc90004c3f918 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888030736680 RCX: ffff88806acb1e00
RDX: 0000000000000000 RSI: ffffffff9025e9f0 RDI: 0000000000000001
RBP: ffff88807f15c480 R08: 0000000000000005 R09: ffffffff8bcecc57
R10: 0000000000000004 R11: ffff88806acb1e00 R12: 0000000000000001
R13: ffff888030736600 R14: dffffc0000000000 R15: ffffc90004c3fb70
 mas_find+0x950/0xbb0 lib/maple_tree.c:6059
 vma_next include/linux/mm.h:1019 [inline]
 exit_mmap+0x5f0/0xc40 mm/mmap.c:1950
 __mmput+0x115/0x390 kernel/fork.c:1348
 exit_mm+0x220/0x310 kernel/exit.c:570
 do_exit+0x9b2/0x28e0 kernel/exit.c:925
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fea3a02fa90
Code: Unable to access opcode bytes at 0x7fea3a02fa66.
RSP: 002b:00007ffdfa0614f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fea39f7f6c0 RCX: 00007fea3a02fa90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007ffdfa061578 R08: 0000000000000007 R09: 7b0f026919c07287
R10: 00000000000004c0 R11: 0000000000000202 R12: 0000000000000001
R13: 00007ffdfa061b48 R14: 0000000000000003 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g9613 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=3435
rcu: rcu_preempt kthread starved for 10503 jiffies! g9613 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:25976 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>