rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=e6f/1/0x4000000000000000 softirq=17473/17475 fqs=4648 
	(t=10500 jiffies g=27393 q=5435)
NMI backtrace for cpu 0
CPU: 0 PID: 6459 Comm: syz.4.563 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 <IRQ>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x3a2/0x3d0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x22f/0x380 kernel/rcu/tree_stall.h:349
 print_cpu_stall+0x31d/0x5f0 kernel/rcu/tree_stall.h:633
 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
 rcu_pending kernel/rcu/tree.c:3936 [inline]
 rcu_sched_clock_irq+0x6ea/0x1120 kernel/rcu/tree.c:2619
 update_process_times+0x193/0x200 kernel/time/timer.c:2021
 tick_sched_handle kernel/time/tick-sched.c:254 [inline]
 tick_sched_timer+0x37d/0x560 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4b4/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:entry_to_node lib/radix-tree.c:67 [inline]
RIP: 0010:radix_tree_next_chunk+0x1e6/0xb50 lib/radix-tree.c:1192
Code: 40 00 00 00 44 89 f1 49 d3 e7 49 ff cf 48 89 df 4c 89 fe e8 0c 0a 73 fd 48 85 ed 0f 84 97 07 00 00 4c 39 fb 0f 87 8e 07 00 00 <49> 89 ec 49 83 e4 fd 48 c1 ed 03 49 bf 00 00 00 00 00 fc ff df 42
RSP: 0018:ffffc9000415f7e0 EFLAGS: 00000297
RAX: ffffffff84062c64 RBX: 0000000000002480 RCX: ffff888024028000
RDX: 0000000000000002 RSI: 000000000003ffff RDI: 0000000000002480
RBP: ffff888074f05602 R08: ffff888074f052af R09: 1ffff1100e9e0a55
R10: dffffc0000000000 R11: ffffed100e9e0a56 R12: ffff888061fb81d0
R13: ffff888061fb81d0 R14: 000000000000000c R15: 000000000003ffff
 radix_tree_gang_lookup_tag+0xb0/0x330 lib/radix-tree.c:1311
 xfs_icwalk_ag+0x2a1/0x1a70 fs/xfs/xfs_icache.c:1680
 xfs_icwalk fs/xfs/xfs_icache.c:1773 [inline]
 xfs_reclaim_inodes+0x188/0x260 fs/xfs/xfs_icache.c:993
 xfs_unmount_flush_inodes fs/xfs/xfs_mount.c:555 [inline]
 xfs_unmountfs+0x155/0x260 fs/xfs/xfs_mount.c:1017
 xfs_fs_put_super+0x66/0x2b0 fs/xfs/xfs_super.c:1095
 generic_shutdown_super+0x130/0x300 fs/super.c:475
 kill_block_super+0x7c/0xe0 fs/super.c:1427
 deactivate_locked_super+0x93/0xf0 fs/super.c:335
 put_fs_context+0x8f/0x7b0 fs/fs_context.c:465
 do_new_mount+0x31c/0xa40 fs/namespace.c:3038
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa7816220ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa77f879e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa77f879ee0 RCX: 00007fa7816220ca
RDX: 0000200000009600 RSI: 0000200000009640 RDI: 00007fa77f879ea0
RBP: 0000200000009600 R08: 00007fa77f879ee0 R09: 0000000000200800
R10: 0000000000200800 R11: 0000000000000246 R12: 0000200000009640
R13: 00007fa77f879ea0 R14: 0000000000009647 R15: 0000200000000380
 </TASK>