rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10501 ticks this GP) idle=d7ec/1/0x4000000000000000 softirq=24708/24708 fqs=0
rcu: 	(t=10502 jiffies g=28985 q=250 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g28985 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=11863
rcu: rcu_preempt kthread starved for 10505 jiffies! g28985 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:26256 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
CPU: 0 PID: 5103 Comm: syz-executor.2 Not tainted 6.9.0-rc7-syzkaller-02060-g5c1672705a1a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:rose_find_socket+0x6b/0x130 net/rose/af_rose.c:309
Code: 00 00 00 fc ff df 48 8d ab 88 05 00 00 48 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 75 77 8b 6d 00 89 ef 44 89 fe e8 c5 d0 2c f7 <44> 39 fd 75 2e 48 8d ab 70 05 00 00 48 89 e8 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc90000007b20 EFLAGS: 00000246
RAX: 0000000000000304 RBX: ffff888064e23000 RCX: ffff8880252c8000
RDX: ffff8880252c8000 RSI: 00000000fffff034 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8a69533b R09: fffff52000000f54
R10: dffffc0000000000 R11: fffff52000000f54 R12: dffffc0000000000
R13: ffff88802984e500 R14: ffff88802ada5400 R15: 00000000fffff034
FS:  0000555579a3c480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f12d5ed56c6 CR3: 000000006e716000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rose_loopback_timer+0x1d2/0x540 net/rose/rose_loopback.c:91
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1844 [inline]
 __run_timers kernel/time/timer.c:2418 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2429
 run_timer_base kernel/time/timer.c:2438 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2448
 handle_softirqs+0x2d6/0x990 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:xas_start+0x35b/0x7b0 lib/xarray.c:195
Code: 08 4c 89 e7 e8 e6 e8 7c f6 49 8b 2c 24 84 db 74 76 49 8d 5d fe 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 0f 85 c2 03 00 00 0f b6 1b bf 40 00 00 00 89 de e8 3e f4 17
RSP: 0018:ffffc9000381f2c0 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff888028d43180 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002
RBP: 0000000000000002 R08: ffffffff8b7e3094 R09: 1ffffffff25e90a0
R10: dffffc0000000000 R11: fffffbfff25e90a1 R12: ffffc9000381f368
R13: ffff888028d43182 R14: ffffc9000381f378 R15: 1ffff92000703e6f
 xas_load lib/xarray.c:237 [inline]
 xa_load+0x205/0x480 lib/xarray.c:1461
 list_lru_from_memcg_idx mm/list_lru.c:56 [inline]
 list_lru_del+0x121/0x310 mm/list_lru.c:128
 d_lru_del fs/dcache.c:441 [inline]
 to_shrink_list+0x136/0x340 fs/dcache.c:864
 select_collect+0xce/0x1b0 fs/dcache.c:1432
 d_walk+0x1d1/0x710 fs/dcache.c:1255
 shrink_dcache_parent+0x144/0x3b0 fs/dcache.c:1487
 d_invalidate+0x11c/0x2d0 fs/dcache.c:1592
 proc_invalidate_siblings_dcache+0x3fb/0x6e0 fs/proc/inode.c:142
 release_task+0x1674/0x1810 kernel/exit.c:282
 wait_task_zombie kernel/exit.c:1189 [inline]
 wait_consider_task+0x1a14/0x2e50 kernel/exit.c:1416
 do_wait_thread kernel/exit.c:1479 [inline]
 __do_wait+0x1b0/0x850 kernel/exit.c:1597
 do_wait+0x1e9/0x560 kernel/exit.c:1631
 kernel_wait4+0x2a7/0x3e0 kernel/exit.c:1790
 __do_sys_wait4 kernel/exit.c:1818 [inline]
 __se_sys_wait4 kernel/exit.c:1814 [inline]
 __x64_sys_wait4+0x134/0x1e0 kernel/exit.c:1814
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efea8a7a797
Code: 89 7c 24 10 48 89 4c 24 18 e8 d5 a3 02 00 4c 8b 54 24 18 8b 54 24 14 41 89 c0 48 8b 74 24 08 8b 7c 24 10 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 89 44 24 10 e8 25 a4 02 00 8b 44
RSP: 002b:00007ffcc5918690 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000336 RCX: 00007efea8a7a797
RDX: 0000000040000001 RSI: 00007ffcc591871c RDI: 00000000ffffffff
RBP: 00007ffcc591871c R08: 0000000000000000 R09: 00007efea98880b0
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 000000000002f7fc R14: 000000000002f7af R15: 0000000000000005
 </TASK>