rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6392/1:b..l P6336/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=9397, q=929 ncpus=2)
task:syz.0.142       state:R  running task     stack:23800 pid:6336  tgid:6336  ppid:5819   task_flags:0x40074c flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x116f/0x5de0 kernel/sched/core.c:6767
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5870
Code: b1 0e 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 72 34 ee 0e 0f 82 74 02 00 00 8b 35 0a 64 ee 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 49 b1 0e 12 0f 85 c7 02 00 00 48 83 c4
RSP: 0018:ffffc9000f88ef58 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff8e3c1580 RCX: 00000000ef9d33e4
RDX: 0000000000000000 RSI: ffffffff8dbc9a17 RDI: ffffffff8bf465c0
RBP: 0000000000000002 R08: 0ac0d5affe09d4ff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 save_stack+0x160/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 free_unref_folios+0x999/0x1630 mm/page_alloc.c:2737
 folios_put_refs+0x56f/0x740 mm/swap.c:992
 folio_batch_release include/linux/pagevec.h:101 [inline]
 shmem_undo_range+0x58f/0x1150 mm/shmem.c:1125
 shmem_truncate_range mm/shmem.c:1237 [inline]
 shmem_evict_inode+0x3a1/0xbe0 mm/shmem.c:1365
 evict+0x3e3/0x920 fs/inode.c:810
 iput_final fs/inode.c:1898 [inline]
 iput fs/inode.c:1924 [inline]
 iput+0x521/0x880 fs/inode.c:1910
 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:457
 __dentry_kill+0x1d0/0x600 fs/dcache.c:660
 dput.part.0+0x4b1/0x9b0 fs/dcache.c:902
 dput+0x1f/0x30 fs/dcache.c:892
 __fput+0x51c/0xb70 fs/file_table.c:473
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xafb/0x2c30 kernel/exit.c:953
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 irqentry_exit_to_user_mode+0x13f/0x280 kernel/entry/common.c:231
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f2caaf8d171
RSP: 002b:0000000000000050 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f2cab1a5fa0 RCX: 00007f2caaf8d169
RDX: 0000000000000000 RSI: 0000000000000050 RDI: 0000000000904000
RBP: 00007f2cab00e730 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2cab1a5fa0 R15: 00007fff2b4a1378
 </TASK>
task:syz.1.157       state:R  running task     stack:23912 pid:6392  tgid:6392  ppid:5818   task_flags:0x400740 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x116f/0x5de0 kernel/sched/core.c:6767
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6947
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 follow_page_pte+0x331/0x1490 mm/gup.c:941
 follow_pmd_mask mm/gup.c:988 [inline]
 follow_pud_mask mm/gup.c:1027 [inline]
 follow_p4d_mask mm/gup.c:1044 [inline]
 follow_page_mask mm/gup.c:1087 [inline]
 __get_user_pages+0x5e6/0x36f0 mm/gup.c:1489
 __get_user_pages_locked mm/gup.c:1757 [inline]
 get_dump_page+0x257/0x3d0 mm/gup.c:2275
 dump_user_range+0x1c3/0xb30 fs/coredump.c:953
 elf_core_dump+0x288a/0x3a90 fs/binfmt_elf.c:2128
 do_coredump+0x3183/0x4480 fs/coredump.c:759
 get_signal+0x22e3/0x26d0 kernel/signal.c:3019
 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 irqentry_exit_to_user_mode+0x13f/0x280 kernel/entry/common.c:231
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7ff053f8d171
RSP: 002b:0000000000000050 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007ff0541a5fa0 RCX: 00007ff053f8d169
RDX: 0000000000000000 RSI: 0000000000000050 RDI: 0000000000904000
RBP: 00007ff05400e730 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff0541a5fa0 R15: 00007ffc7020f018
 </TASK>