rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P3928/1:b..l..
rcu: 	(detected by 0, t=10503 jiffies, g=217669, q=1220479 ncpus=2)
task:syz.1.6500      state:R  running task     stack:25720 pid:3928  tgid:3921  ppid:1624   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x17dd/0x5820 kernel/sched/core.c:7382
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
 irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x80 kernel/kcov.c:212
Code: 8b 3d 34 1a ae 0c 48 89 de 5b e9 d3 74 65 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d c8 79 d4 12 65 48 8b 15 c8 79 d4 12 f7 c2 00 01 00 ff
RSP: 0018:ffffc900048ef4a8 EFLAGS: 00000206
RAX: ffffffff8bf51930 RBX: dffffc0000000000 RCX: ffff8880352cddc0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002
RBP: dffffc0000000000 R08: ffffffff820a517d R09: 0000000000000000
R10: ffffc900048ef580 R11: fffff5200091deb3 R12: ffffc900048ef572
R13: ffff8880520758c0 R14: ffff8880697402c2 R15: 0000000000000014
 xas_load+0x480/0x5a0 lib/xarray.c:-1
 filemap_get_entry+0x181/0x3f0 mm/filemap.c:1907
 shmem_get_folio_gfp+0x26f/0x16d0 mm/shmem.c:2455
 shmem_fault+0x179/0x390 mm/shmem.c:2732
 __do_fault+0x138/0x2a0 mm/memory.c:5565
 do_read_fault mm/memory.c:6000 [inline]
 do_fault mm/memory.c:6134 [inline]
 do_pte_missing+0x2215/0x34b0 mm/memory.c:4700
 handle_pte_fault mm/memory.c:6558 [inline]
 __handle_mm_fault mm/memory.c:6707 [inline]
 handle_mm_fault+0x1a53/0x3750 mm/memory.c:6876
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x1670/0x2750 mm/gup.c:1428
 populate_vma_page_range+0x2be/0x3c0 mm/gup.c:1860
 __mm_populate+0x25f/0x390 mm/gup.c:1963
 mm_populate include/linux/mm.h:4288 [inline]
 vm_mmap_pgoff+0x353/0x4e0 mm/util.c:586
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe206f9f559
RSP: 002b:00007fe207e75028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fe207226180 RCX: 00007fe206f9f559
RDX: 000000000100000d RSI: 0000000000600000 RDI: 00002000009fd000
RBP: 00007fe207036b20 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000006031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe207226218 R14: 00007fe207226180 R15: 00007ffee1f2e258
 </TASK>