rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7830/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=34137, q=795773 ncpus=2)
task:syz.4.410       state:R  running task     stack:27024 pid:7830  tgid:7821  ppid:5637   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__rcu_read_lock+0x31/0x60 kernel/rcu/tree_plugin.h:416
Code: 8b 1d 2b 52 e8 11 48 81 c3 c4 04 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 18 ff 03 8b 03 <3d> 00 00 00 40 7d 07 5b e9 fd 12 63 ff cc 90 0f 0b 90 eb f3 89 d9
RSP: 0018:ffffc9000aaf7810 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff88805214e284 RCX: dffffc0000000000
RDX: 0000000000000cc0 RSI: ffff88801cae8000 RDI: ffffea0001ceb800
RBP: 1ffffd400039d700 R08: ffffffff82415ef5 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff9400039d701 R12: 0000000000000cc0
R13: 0000000000000cc0 R14: ffff88801cae8000 R15: 0000000000000000
 rcu_read_lock include/linux/rcupdate.h:847 [inline]
 get_obj_cgroup_from_memcg mm/memcontrol.c:2992 [inline]
 charge_memcg+0x40/0x310 mm/memcontrol.c:5207
 __mem_cgroup_charge+0x25/0x80 mm/memcontrol.c:5227
 mem_cgroup_charge include/linux/memcontrol.h:662 [inline]
 shmem_alloc_and_add_folio+0x7bb/0xf60 mm/shmem.c:1988
 shmem_get_folio_gfp+0x5da/0x16d0 mm/shmem.c:2531
 shmem_get_folio mm/shmem.c:2637 [inline]
 shmem_write_begin+0x16c/0x330 mm/shmem.c:3268
 generic_perform_write+0x2d5/0x8f0 mm/filemap.c:4374
 shmem_file_write_iter+0xf8/0x120 mm/shmem.c:3443
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 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: 0033:0x7ff29b99e159
RSP: 002b:00007ff299791028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff29bc26270 RCX: 00007ff29b99e159
RDX: 00000000ffffff6a RSI: 0000200000000000 RDI: 0000000000000007
RBP: 00007ff29ba3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff29bc26308 R14: 00007ff29bc26270 R15: 00007ffecc92ffd8
 </TASK>