rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2914 jiffies s: 1453 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3787 Comm: syz.4.28 Not tainted 6.1.108-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__perf_event_account_interrupt+0x82/0x2a0 kernel/events/core.c:9351
Code: 48 89 de e8 80 dd d9 ff 49 39 de 75 74 4d 8d af 08 02 00 00 4d 89 ee 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 06 00 <74> 08 4c 89 ef e8 d4 5b 31 00 49 8b 6d 00 48 ff c5 49 89 6d 00 31
RSP: 0018:ffffc900001dfcd8 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 000000000000277e RCX: ffff888025bd1dc0
RDX: 0000000000010100 RSI: 000000000000277e RDI: 000000000000277e
RBP: 1ffff11003c6f580 R08: ffffffff81b0d2d0 R09: ffffed1003c6f5d0
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff88801e37ac08 R14: 1ffff11003c6f581 R15: ffff88801e37aa00
FS:  00007f391dfc16c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f40bff8 CR3: 000000005d880000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __perf_event_overflow+0x9a/0x640 kernel/events/core.c:9411
 perf_swevent_hrtimer+0x38e/0x4f0 kernel/events/core.c:10870
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x5a7/0xe50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:ip_route_output_key_hash_rcu+0x9bf/0x2380 net/ipv4/route.c:2794
Code: 4c 89 f7 e8 03 08 c5 f8 49 8b 2e 48 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 ef e8 ea 07 c5 f8 48 8b 7d 00 e8 c1 19 00 00 <48> 85 c0 74 0a 48 89 c5 e8 74 87 6d f8 eb 2b e8 6d 87 6d f8 48 8b
RSP: 0018:ffffc900001e0338 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff9200003c086 RCX: ffff888025bd1dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88807ca39680 R08: ffffffff891d4116 R09: fffffbfff1d33b66
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200003c110
R13: ffffc900001e0420 R14: ffffc900001e0430 R15: dffffc0000000000
 ip_route_output_key_hash+0x207/0x360 net/ipv4/route.c:2641
 icmp_route_lookup+0x3f9/0x9c0 net/ipv4/icmp.c:501
 __icmp_send+0xd14/0x1530 net/ipv4/icmp.c:734
 ipv4_send_dest_unreach net/ipv4/route.c:1233 [inline]
 ipv4_link_failure+0x638/0xa10 net/ipv4/route.c:1240
 dst_link_failure include/net/dst.h:423 [inline]
 arp_error_report+0x112/0x160 net/ipv4/arp.c:296
 neigh_invalidate+0x240/0x460 net/core/neighbour.c:1059
 neigh_timer_handler+0x8a1/0x1010 net/core/neighbour.c:1146
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5120
Code: 32 0b 00 48 83 c4 08 4c 89 f7 e8 68 31 00 00 0f 1f 44 00 00 4c 89 f7 e8 3b 9c 51 09 e8 16 21 32 00 fb 49 8d bc 24 f8 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc900049a7228 EFLAGS: 00000282
RAX: 85f1f0d50534eb00 RBX: ffff888079f6d974 RCX: ffffffff816af01a
RDX: dffffc0000000000 RSI: ffffffff8b0c0260 RDI: ffff888025bd33b8
RBP: ffffc900049a7270 R08: dffffc0000000000 R09: fffffbfff223b645
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888025bd1dc0
R13: 1ffff110171e76e3 R14: ffff8880b8f3a9c0 R15: ffff8880b8f3b718
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x1447/0x4570 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:slab_alloc_node mm/slub.c:3359 [inline]
RIP: 0010:slab_alloc mm/slub.c:3406 [inline]
RIP: 0010:__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
RIP: 0010:kmem_cache_alloc+0x72/0x2d0 mm/slub.c:3422
Code: f0 e8 e2 20 00 00 48 85 c0 0f 84 ba 00 00 00 48 89 c5 e9 fc 01 00 00 41 b0 01 48 8b 45 00 65 48 03 05 4a d1 20 7e 48 8b 50 08 <4c> 8b 38 4d 85 ff 0f 84 ea 00 00 00 48 83 78 10 00 0f 84 df 00 00
RSP: 0018:ffffc900049a75c8 EFLAGS: 00000286
RAX: ffff8880b8f41f30 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000007fdc9 RSI: 00000000000000a8 RDI: ffffffff8d41d500
RBP: ffff888140009c80 R08: dffffc0000000001 R09: fffffbfff1d33b66
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888140009c80
R13: 00000000000000a8 R14: 0000000000000dc0 R15: 1ffff92000934ed0
 kmem_cache_zalloc include/linux/slab.h:683 [inline]
 __kernfs_new_node+0xd4/0x870 fs/kernfs/dir.c:614
 kernfs_new_node+0x136/0x230 fs/kernfs/dir.c:690
 __kernfs_create_file+0x45/0x2e0 fs/kernfs/file.c:1049
 cgroup_add_file kernel/cgroup/cgroup.c:4205 [inline]
 cgroup_addrm_files+0xaae/0x1030 kernel/cgroup/cgroup.c:4265
 css_populate_dir+0x12d/0x360 kernel/cgroup/cgroup.c:1771
 cgroup_apply_control_enable+0x61b/0xae0 kernel/cgroup/cgroup.c:3267
 cgroup_mkdir+0xd8b/0xff0 kernel/cgroup/cgroup.c:5767
 kernfs_iop_mkdir+0x275/0x400 fs/kernfs/dir.c:1221
 vfs_mkdir+0x3b6/0x590 fs/namei.c:4108
 do_mkdirat+0x225/0x360 fs/namei.c:4133
 __do_sys_mkdirat fs/namei.c:4148 [inline]
 __se_sys_mkdirat fs/namei.c:4146 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4146
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f391d17cef9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f391dfc1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f391d335f80 RCX: 00007f391d17cef9
RDX: 00000000000001ff RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f391d1ef046 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f391d335f80 R15: 00007ffe3b3ef968
 </TASK>