rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9747/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=55257, q=970 ncpus=2)
task:sed             state:R  running task     stack:23680 pid:9747  tgid:9747  ppid:9746   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6529
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x13b/0x190
Code: 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc900030ef658 EFLAGS: 00000206
RAX: 3b51f74cd77f7100 RBX: 0000000000000001 RCX: ffff88807a545a00
RDX: 0000000000000000 RSI: ffffffff8c0ae6a0 RDI: ffffffff8c606880
RBP: 0000000000000000 R08: ffffffff8bab1753 R09: ffffffff8bab1576
R10: 0000000000000004 R11: ffff88807a545a00 R12: 0000000000000246
R13: ffff88807a545a00 R14: 00000000ffffffff R15: ffff88802d812798
 lock_is_held include/linux/lockdep.h:249 [inline]
 mt_locked lib/maple_tree.c:781 [inline]
 mt_slot lib/maple_tree.c:788 [inline]
 mas_slot lib/maple_tree.c:821 [inline]
 mas_validate_child_slot lib/maple_tree.c:7426 [inline]
 mt_validate+0x1f99/0x4aa0 lib/maple_tree.c:7591
 validate_mm+0xe7/0x530 mm/mmap.c:329
 __split_vma+0xaca/0xc30 mm/mmap.c:2511
 split_vma mm/mmap.c:2537 [inline]
 vma_modify+0x268/0x350 mm/mmap.c:2578
 vma_modify_flags include/linux/mm.h:3298 [inline]
 mprotect_fixup+0x3ea/0xa90 mm/mprotect.c:639
 do_mprotect_pkey+0x908/0xe00 mm/mprotect.c:822
 __do_sys_mprotect mm/mprotect.c:843 [inline]
 __se_sys_mprotect mm/mprotect.c:840 [inline]
 __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:840
 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: 0033:0x7fe02b973bb7
RSP: 002b:00007fff79a08768 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007fe02b987ab0 RCX: 00007fe02b973bb7
RDX: 0000000000000001 RSI: 0000000000002000 RDI: 00007fe02b985000
RBP: 00007fff79a08880 R08: 00007fff79a00000 R09: 00007fe02b94f5c0
R10: 00007fe02b958858 R11: 0000000000000206 R12: 00007fe02b987ab0
R13: 00007fe02b97beda R14: 00007fe02b9869f0 R15: 00007fe02b986f40
 </TASK>
rcu: rcu_preempt kthread starved for 10538 jiffies! g55257 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:26448 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
 kthread+0x2f2/0x390 kernel/kthread.c:389
 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0-rc1-syzkaller-00004-gdc1c8034e31b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 40 d7 03 00 48 f7 00 08 00 00 00 75 10 eb 07 0f 00 2d e5 8f b4 00 f3 0f 1e fa fb f4 <fa> e9 24 b5 3a 00 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff8880182f0000 RBX: ffff88801c2fa064 RCX: 0000000000de1981
RDX: 0000000000000001 RSI: ffff88801c2fa000 RDI: ffff88801c2fa064
RBP: 000000000003a6b8 R08: ffff8880b9337c7b R09: 1ffff11017266f8f
R10: dffffc0000000000 R11: ffffffff8bb58790 R12: ffff888018b87000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8f0db3a0
FS:  0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002005b030 CR3: 00000000297f2000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702
 cpuidle_enter_state+0x114/0x480 drivers/cpuidle/cpuidle.c:267
 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:230 [inline]
 do_idle+0x375/0x5d0 kernel/sched/idle.c:326
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
 start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
 common_startup_64+0x13e/0x147
 </TASK>