rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P17840/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=114793, q=351 ncpus=2)
task:syz.4.3363      state:R  running task     stack:23888 pid:17840 tgid:17837 ppid:14857  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5249 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6597
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6919
 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_acquire+0x264/0x550 kernel/locking/lockdep.c:5820
Code: 2b 00 74 08 4c 89 f7 e8 7a e4 8a 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900001f73c0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200003ee84 RCX: 7b4d116148288c00
RDX: dffffc0000000000 RSI: ffffffff8bcada80 RDI: ffffffff8c206fe0
RBP: ffffc900001f7508 R08: ffffffff93007787 R09: 1ffffffff2600ef0
R10: dffffc0000000000 R11: fffffbfff2600ef1 R12: 1ffff9200003ee80
R13: dffffc0000000000 R14: ffffc900001f7420 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
 rcu_read_lock include/linux/rcupdate.h:845 [inline]
 do_fault_around mm/memory.c:5019 [inline]
 do_read_fault mm/memory.c:5053 [inline]
 do_fault mm/memory.c:5192 [inline]
 do_pte_missing mm/memory.c:3948 [inline]
 handle_pte_fault+0x21f6/0x6eb0 mm/memory.c:5523
 __handle_mm_fault mm/memory.c:5666 [inline]
 handle_mm_fault+0x10d7/0x1b40 mm/memory.c:5831
 faultin_page mm/gup.c:1339 [inline]
 __get_user_pages+0x6ef/0x1590 mm/gup.c:1638
 populate_vma_page_range+0x264/0x330 mm/gup.c:2078
 __mm_populate+0x27a/0x460 mm/gup.c:2181
 mm_populate include/linux/mm.h:3422 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:581
 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: 0033:0x7fb9c8d75b29
RSP: 002b:00007fb9c9a5f048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fb9c8f03fa0 RCX: 00007fb9c8d75b29
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fb9c8df6756 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb9c8f03fa0 R15: 00007fff702c04d8
 </TASK>
rcu: rcu_preempt kthread starved for 10535 jiffies! g114793 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:26448 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5249 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6597
 __schedule_loop kernel/sched/core.c:6674 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6689
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2020
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2222
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.10.0-rc5-next-20240627-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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:113
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d6 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 05 0a 9a 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffffff8e007ca8 EFLAGS: 00000246
RAX: ffffffff8e094680 RBX: ffff88801bea9064 RCX: 00000000019de521
RDX: 0000000000000001 RSI: ffff88801bea9000 RDI: ffff88801bea9064
RBP: 000000000003a5f8 R08: ffff8880b9437c9b R09: 1ffff11017286f93
R10: dffffc0000000000 R11: ffffffff8b900010 R12: ffff88801bf08000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8ead6180
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4002025287 CR3: 000000007a7d6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
 cpuidle_enter_state+0x112/0x480 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
 rest_init+0x2dc/0x300 init/main.c:747
 start_kernel+0x47a/0x500 init/main.c:1103
 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488
 common_startup_64+0x13e/0x147
 </TASK>