rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9787/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=62425, q=929036 ncpus=2)
task:syz.2.1060      state:R  running task     stack:25432 pid:9787  tgid:9786  ppid:5645   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x760 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x221/0x350 kernel/locking/lockdep.c:5872
Code: ff ff ff e8 21 be 07 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 db e8 97 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 80 b1 0a 0a cc 48 8d 3d a8 92 92
RSP: 0018:ffffc90006497078 EFLAGS: 00000286
RAX: 851892e023dad300 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 00000000722f50ce RSI: ffffffff8e220c4d RDI: ffffffff8c28b860
RBP: ffffffff8176e256 R08: ffffffff8176e256 R09: ffffffff8e95cce0
R10: ffffc900064971d8 R11: ffffffff81b0e040 R12: 0000000000000002
R13: ffffffff8e95cce0 R14: 0000000000000000 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 rcu_read_lock include/linux/rcupdate.h:838 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1181 [inline]
 unwind_next_frame+0xc3/0x2550 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:165
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1402 [inline]
 __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943
 __slab_free+0x274/0x2c0 mm/slub.c:5613
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4570 [inline]
 slab_alloc_node mm/slub.c:4899 [inline]
 __do_kmalloc_node mm/slub.c:5295 [inline]
 __kmalloc_noprof+0x316/0x760 mm/slub.c:5308
 kmalloc_noprof include/linux/slab.h:954 [inline]
 memcg_init_list_lru_one mm/list_lru.c:411 [inline]
 memcg_list_lru_alloc+0x27e/0x800 mm/list_lru.c:544
 __memcg_slab_post_alloc_hook+0x395/0xe80 mm/memcontrol.c:3460
 memcg_slab_post_alloc_hook mm/slub.c:2461 [inline]
 slab_post_alloc_hook mm/slub.c:4581 [inline]
 slab_alloc_node mm/slub.c:4899 [inline]
 kmem_cache_alloc_lru_noprof+0x346/0x640 mm/slub.c:4918
 fuse_alloc_inode+0x2e/0x1a0 fs/fuse/inode.c:102
 alloc_inode+0x6a/0x1b0 fs/inode.c:345
 iget5_locked+0x4a/0xa0 fs/inode.c:1382
 fuse_iget+0x3c8/0xa90 fs/fuse/inode.c:505
 fuse_get_root_inode fs/fuse/inode.c:1094 [inline]
 fuse_fill_super_common+0xa54/0x1180 fs/fuse/inode.c:1935
 fuse_fill_super+0x98/0x120 fs/fuse/inode.c:1984
 vfs_get_super fs/super.c:1327 [inline]
 get_tree_nodev+0xbb/0x150 fs/super.c:1346
 fuse_get_tree+0x295/0x3b0 fs/fuse/inode.c:2055
 vfs_get_tree+0x92/0x2a0 fs/super.c:1754
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3758 [inline]
 do_new_mount+0x341/0xd30 fs/namespace.c:3834
 do_mount fs/namespace.c:4167 [inline]
 __do_sys_mount fs/namespace.c:4383 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4360
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0x560 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbd1b19ce59
RSP: 002b:00007fbd193f6028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbd1b415fa0 RCX: 00007fbd1b19ce59
RDX: 0000200000000140 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007fbd1b232d6f R08: 0000200000000180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbd1b416038 R14: 00007fbd1b415fa0 R15: 00007fbd1b53fa48
 </TASK>