rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P18086/2:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=73537, q=2500 ncpus=2)
task:syz.3.2636      state:R  running task     stack:24992 pid:18086 tgid:18085 ppid:10576  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
 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:xa_entry include/linux/xarray.h:1220 [inline]
RIP: 0010:xas_descend lib/xarray.c:207 [inline]
RIP: 0010:xas_load+0x19e/0x5c0 lib/xarray.c:245
Code: 4c 8b 33 e8 04 5a 02 00 89 c3 31 ff 89 c6 e8 c9 30 d9 f5 85 db 74 2b 49 83 c7 18 4c 89 ff be ff ff ff ff e8 04 56 02 00 89 c3 <31> ff 89 c6 e8 a9 30 d9 f5 85 db 0f 84 c4 02 00 00 e8 5c 2c d9 f5
RSP: 0018:ffffc9000404f068 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880261e3c00
RDX: ffff8880261e3c00 RSI: ffffffff8c0aa960 RDI: ffffffff8c5faea0
RBP: dffffc0000000000 R08: ffffffff8bc64767 R09: ffffffff8bc6c72b
R10: 0000000000000002 R11: ffff8880261e3c00 R12: ffffc9000404f320
R13: 0000000000000005 R14: ffff8880785a3c82 R15: ffff88805a79be88
 xas_find+0x13f/0x960 lib/xarray.c:1266
 next_uptodate_folio+0x33/0x5f0 mm/filemap.c:3494
 filemap_map_pages+0x2ea/0x1900 mm/filemap.c:3646
 do_fault_around mm/memory.c:5280 [inline]
 do_read_fault mm/memory.c:5313 [inline]
 do_fault mm/memory.c:5456 [inline]
 do_pte_missing mm/memory.c:3979 [inline]
 handle_pte_fault+0x388a/0x5ed0 mm/memory.c:5801
 __handle_mm_fault mm/memory.c:5944 [inline]
 handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112
 faultin_page mm/gup.c:1196 [inline]
 __get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
 populate_vma_page_range+0x264/0x330 mm/gup.c:1932
 __mm_populate+0x27a/0x460 mm/gup.c:2035
 mm_populate include/linux/mm.h:3386 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:585
 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: 0033:0x7fac3e785d29
RSP: 002b:00007fac3f4ea038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fac3e975fa0 RCX: 00007fac3e785d29
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fac3e801aa8 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fac3e975fa0 R15: 00007fff78e3ba98
 </TASK>