rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P4259/1:b..l
	(detected by 0, t=10502 jiffies, g=9385, q=29 ncpus=2)
task:modprobe        state:R  running task     stack:23880 pid:4259  ppid:3695   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6561
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6873
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:mas_validate_limits lib/maple_tree.c:7105 [inline]
RIP: 0010:mt_validate+0x1edb/0x5ad0 lib/maple_tree.c:7238
Code: 24 50 48 8b 7c 24 68 48 c7 c6 30 be 82 8e e8 2c e7 ee f6 41 83 fd 03 74 1a 41 83 fd 02 74 0d 41 83 fd 01 75 19 e8 b5 e2 ee f6 <eb> 0c e8 ae e2 ee f6 eb 05 e8 a7 e2 ee f6 48 8d 43 08 eb 07 e8 9c
RSP: 0018:ffffc900167170e0 EFLAGS: 00000293
RAX: ffffffff8a9bb8db RBX: ffff88802013f800 RCX: ffff888075c88000
RDX: 0000000000000000 RSI: ffffffff8e82be30 RDI: 0000000000000001
RBP: ffffc900167172d0 R08: 0000000000000005 R09: ffffffff8a9bb8c4
R10: 0000000000000003 R11: ffff888075c88000 R12: 0000000000000001
R13: 0000000000000001 R14: dffffc0000000000 R15: ffffc90016717238
 validate_mm_mt+0x165/0x670 mm/mmap.c:295
 validate_mm+0x16e/0x380 mm/mmap.c:332
 __vma_adjust+0x1d41/0x1f40 mm/mmap.c:871
 __split_vma+0x36e/0x530
 do_mas_align_munmap+0x953/0x15f0 mm/mmap.c:2491
 do_mas_munmap+0x246/0x2b0 mm/mmap.c:2640
 mmap_region+0x8e6/0x1fa0 mm/mmap.c:2688
 do_mmap+0x8c5/0xf60 mm/mmap.c:1425
 vm_mmap_pgoff+0x1ca/0x2d0 mm/util.c:520
 ksys_mmap_pgoff+0x4f5/0x6d0 mm/mmap.c:1471
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f158c3e4b74
RSP: 002b:00007fff632692c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fff63269308 RCX: 00007f158c3e4b74
RDX: 0000000000000005 RSI: 000000000002c000 RDI: 00007f158c0c9000
RBP: 00007fff63269660 R08: 0000000000000000 R09: 0000000000002000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007f158c3c8570
R13: 00007fff632696e8 R14: 0000000000001fd8 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10543 jiffies! g9385 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:26136 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6561
 schedule+0xbf/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:567
Code: 6c db f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 34 2b e2 f6 0f 1f 44 00 00 e8 6a 68 db f6 0f 00 2d b3 4d b8 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 bb f0 32 f7
RSP: 0018:ffffffff8d007b20 EFLAGS: 000002d3
RAX: ffffffff8aaf3326 RBX: 0000000000000000 RCX: ffffffff8d0bd800
RDX: 0000000000000000 RSI: ffffffff8b0c0240 RDI: ffffffff8b5d5ba0
RBP: ffffffff8d007bb0 R08: ffffffff8aaf3308 R09: fffffbfff1a17b01
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1a00f64
R13: ffff88814368d804 R14: ffffffff8d007b40 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed1eff8 CR3: 000000005a2f8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:704
 cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239
 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x3ce/0x680 kernel/sched/idle.c:303
 cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:401
 rest_init+0x2da/0x300 init/main.c:733
 arch_call_rest_init+0xa/0xa init/main.c:893
 start_kernel+0x496/0x53f init/main.c:1140
 secondary_startup_64_no_verify+0xcf/0xdb
 </TASK>