rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2685 jiffies s: 12221 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5199 Comm: syz.4.178 Not tainted 6.1.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__lock_acquire+0x123/0x1f80 kernel/locking/lockdep.c:4952
Code: 48 89 44 24 28 0f b6 04 10 84 c0 0f 85 6d 15 00 00 48 89 6c 24 18 8b 75 00 48 c7 c0 60 01 3c 97 48 c1 e8 03 0f b6 04 10 84 c0 <48> 89 74 24 40 0f 85 70 15 00 00 83 3d 2b 56 d1 15 00 75 09 83 fe
RSP: 0018:ffffc90000006d80 EFLAGS: 00000002
RAX: 0000000000000004 RBX: ffffffff90c43220 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000005 RDI: ffffffff8d32e680
RBP: ffff888025b6a898 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002
R13: ffff888025b69dc0 R14: ffffffff8d32e680 R15: 0000000000000000
FS:  00007f96908c56c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2bc3db CR3: 0000000057e07000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 __perf_output_begin kernel/events/ring_buffer.c:163 [inline]
 perf_output_begin_forward+0xcf/0xaf0 kernel/events/ring_buffer.c:271
 __perf_event_output kernel/events/core.c:7709 [inline]
 perf_event_output_forward+0x1e5/0x330 kernel/events/core.c:7727
 __perf_event_overflow+0x45e/0x640 kernel/events/core.c:9473
 perf_tp_event+0x35a/0xc80 kernel/events/core.c:10006
 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9979
 perf_trace_preemptirq_template+0x2d1/0x3d0 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd5/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x540 kernel/rcu/tree_plugin.h:682
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 6d 1a 8e 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a
RSP: 0018:ffffc90000007780 EFLAGS: 00000206
RAX: f878b8691ad14300 RBX: 1ffff92000000ef8 RCX: ffffffff816b145a
RDX: dffffc0000000000 RSI: ffffffff8b0c1d40 RDI: ffffffff8b5f6f80
RBP: ffffc90000007858 R08: dffffc0000000000 R09: fffffbfff225726a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8d333500
R13: ffff888025b6a218 R14: ffffc900000077c0 R15: 1ffff92000000ef4
 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ndisc_send_skb+0xdb6/0x15f0 net/ipv6/ndisc.c:521
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3982
 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:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:661
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:obj_cgroup_charge+0x34a/0x630 mm/memcontrol.c:3360
Code: 44 24 60 42 80 3c 23 00 74 08 4c 89 ff e8 8e d2 f8 ff f6 44 24 61 02 0f 85 08 01 00 00 41 f7 c5 00 02 00 00 74 01 fb 45 31 ed <80> 7c 24 0c 00 0f 85 88 00 00 00 4c 89 f0 48 c1 e8 0c 31 db 41 81
RSP: 0018:ffffc900031b7540 EFLAGS: 00000246
RAX: f878b8691ad14300 RBX: 1ffff92000636eb4 RCX: ffffffff816b145a
RDX: dffffc0000000000 RSI: ffffffff8b0c1d40 RDI: ffffffff8b5f6f80
RBP: ffffc900031b7628 R08: dffffc0000000000 R09: fffffbfff2257266
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000180 R15: ffffc900031b75a0
 memcg_slab_pre_alloc_hook mm/slab.h:501 [inline]
 slab_pre_alloc_hook+0x2dd/0x300 mm/slab.h:715
 slab_alloc_node mm/slub.c:3318 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc_lru+0x4a/0x2d0 mm/slub.c:3429
 __d_alloc+0x31/0x760 fs/dcache.c:1774
 d_alloc fs/dcache.c:1854 [inline]
 d_alloc_parallel+0xdd/0x1590 fs/dcache.c:2645
 lookup_open fs/namei.c:3407 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0x90a/0x2e60 fs/namei.c:3780
 do_filp_open+0x230/0x480 fs/namei.c:3810
 do_sys_openat2+0x13b/0x4f0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1345
 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: 0033:0x7f968f98d169
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:00007f96908c5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f968fba5fa0 RCX: 00007f968f98d169
RDX: 0000000000000002 RSI: 00004000000003c0 RDI: 0000000000000005
RBP: 00007f968fa0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f968fba5fa0 R15: 00007fff3f5dda08
 </TASK>