rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9981/2:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=50553, q=442 ncpus=2)
task:syz.2.1216      state:R  running task     stack:24272 pid:9981  tgid:9980  ppid:7623   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5407 [inline]
 __schedule+0x17ae/0x4a10 kernel/sched/core.c:6748
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7070
 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:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:123 [inline]
RIP: 0010:lock_is_held_type+0x67/0x190 kernel/locking/lockdep.c:5821
Code: f1 00 00 00 65 4c 8b 2c 25 80 d4 03 00 41 83 bd dc 0a 00 00 00 0f 85 da 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c <8f> 04 24 4c 8b 24 24 fa 48 c7 c7 20 c9 ca 8b e8 55 1b 00 00 65 ff
RSP: 0018:ffffc90004b4f118 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000080000000
RDX: ffff88802857bc00 RSI: 00000000ffffffff RDI: ffffffff8e333fe0
RBP: 0000000000000001 R08: ffffffff8b798e67 R09: ffffffff8b7a07bb
R10: 0000000000000002 R11: ffff88802857bc00 R12: ffffc90004b4f460
R13: ffff88802857bc00 R14: 00000000ffffffff R15: ffffffff8e333fe0
 xa_head include/linux/xarray.h:1204 [inline]
 xas_start+0x2d7/0x7b0 lib/xarray.c:190
 xas_load+0x2c/0x5c0 lib/xarray.c:238
 xas_find+0x13f/0x960 lib/xarray.c:1266
 next_uptodate_folio+0x29/0xa40 mm/filemap.c:3464
 filemap_map_pages+0x302/0x1e70 mm/filemap.c:3616
 do_fault_around mm/memory.c:4879 [inline]
 do_read_fault mm/memory.c:4912 [inline]
 do_fault mm/memory.c:5051 [inline]
 do_pte_missing mm/memory.c:3897 [inline]
 handle_pte_fault+0x3b9b/0x7090 mm/memory.c:5381
 __handle_mm_fault mm/memory.c:5524 [inline]
 handle_mm_fault+0xfb0/0x19d0 mm/memory.c:5689
 faultin_page mm/gup.c:1305 [inline]
 __get_user_pages+0x6ec/0x16a0 mm/gup.c:1604
 populate_vma_page_range+0x264/0x330 mm/gup.c:2043
 __mm_populate+0x27a/0x460 mm/gup.c:2146
 mm_populate include/linux/mm.h:3469 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:578
 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: 0033:0x7fad5e175a19
RSP: 002b:00007fad5eebb048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fad5e303f60 RCX: 00007fad5e175a19
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fad5e1e4e49 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fad5e303f60 R15: 00007ffc28a10a58
 </TASK>
rcu: rcu_preempt kthread starved for 10464 jiffies! g50553 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:26200 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5407 [inline]
 __schedule+0x17ae/0x4a10 kernel/sched/core.c:6748
 __schedule_loop kernel/sched/core.c:6825 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6840
 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+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>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.10.0-syzkaller-01193-g408323581b72 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__lock_release kernel/locking/lockdep.c:5429 [inline]
RIP: 0010:lock_release+0x259/0x9f0 kernel/locking/lockdep.c:5774
Code: e0 0a 00 00 4c 63 e3 41 83 fc 31 0f 83 ff 05 00 00 4f 8d 2c a4 4f 8d 3c ee 4c 89 ff 48 8b 74 24 20 e8 3b c7 0b 0a 89 5c 24 44 <89> da 85 c0 0f 84 05 02 00 00 4d 85 ff 0f 84 19 03 00 00 49 8d 5f
RSP: 0018:ffffc90000a18c80 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc90000a18d03
RDX: 1ffff920001431a0 RSI: ffffffff8e34e208 RDI: ffff888017ad8b08
RBP: ffffc90000a18db0 R08: ffffffff8fac862f R09: 1ffffffff1f590c5
R10: dffffc0000000000 R11: fffffbfff1f590c6 R12: 0000000000000001
R13: 0000000000000005 R14: ffff888017ad8ae0 R15: ffff888017ad8b08
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f10aba6d7ab CR3: 0000000021ae4000 CR4: 00000000003526f0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 seqcount_lockdep_reader_access+0x10f/0x220 include/linux/seqlock.h:71
 timekeeping_debug_get_ns kernel/time/timekeeping.c:256 [inline]
 timekeeping_get_ns+0x5c/0x420 kernel/time/timekeeping.c:401
 ktime_get+0x89/0xb0 kernel/time/timekeeping.c:850
 tick_nohz_start_idle+0x109/0x290 kernel/time/tick-sched.c:750
 tick_irq_exit kernel/softirq.c:622 [inline]
 __irq_exit_rcu+0x136/0x1c0 kernel/softirq.c:639
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
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 80 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 75 34 aa 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:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff888017ad8000 RBX: ffff88801b2bf064 RCX: 00000000010e2299
RDX: 0000000000000001 RSI: ffff88801b2bf000 RDI: ffff88801b2bf064
RBP: 000000000003a538 R08: ffff8880b9537ccb R09: 1ffff110172a6f99
R10: dffffc0000000000 R11: ffffffff8b7eab60 R12: ffff88801bfc0000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eac0380
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702
 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:236 [inline]
 do_idle+0x375/0x5d0 kernel/sched/idle.c:332
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:430
 start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
 common_startup_64+0x13e/0x147
 </TASK>