rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2640 jiffies s: 78977 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: 15155 Comm: syz.1.2645 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__kasan_check_read+0x6/0x10 mm/kasan/shadow.c:31
Code: 41 5f 5d c3 48 c7 c7 a3 fd 61 8c eb 0a 48 c7 c7 e3 7b 46 8c 48 89 de e8 c8 dc 53 08 31 ed eb d7 00 00 cc cc 89 f6 48 8b 0c 24 <31> d2 e9 c3 ec ff ff 0f 1f 00 89 f6 48 8b 0c 24 ba 01 00 00 00 e9
RSP: 0018:ffffc900000075e0 EFLAGS: 00000046
RAX: ffffffff81a5536d RBX: ffff88801d7e6c00 RCX: ffffffff81a55381
RDX: 0000000000000100 RSI: 0000000000000004 RDI: ffff88801d7e7078
RBP: ffff88801d7e7078 R08: ffff88801d7e6dff R09: 1ffff11003afcdbf
R10: dffffc0000000000 R11: ffffed1003afcdc0 R12: 0000000000000000
R13: 000000000004fef6 R14: ffffc90000007800 R15: dffffc0000000000
FS:  00007fcd21b1a6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcd20beb840 CR3: 00000000254d2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
 __perf_event_overflow+0x41/0x630 kernel/events/core.c:9445
 perf_swevent_overflow+0x19b/0x230 kernel/events/core.c:9589
 perf_swevent_event+0x458/0x570 kernel/events/core.c:-1
 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10074
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10042
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 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+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 32 7b 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007c40 EFLAGS: 00000206
RAX: 914ec1a803f90c00 RBX: 1ffff92000000f90 RCX: 914ec1a803f90c00
RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: ffffffff8adf68a0
RBP: ffffc90000007d30 R08: ffffffff90b0f26f R09: 1ffffffff2161e4d
R10: dffffc0000000000 R11: fffffbfff2161e4e R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3bb00 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 rebalance_domains+0x86f/0x9d0 kernel/sched/fair.c:11052
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 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:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6875
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 a5 92 1d f7 e8 80 70 4d f7 fb bf 01 00 00 00 <e8> 25 ba ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc90004e6fac0 EFLAGS: 00000282
RAX: 914ec1a803f90c00 RBX: 0000000000000000 RCX: 914ec1a803f90c00
RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: 0000000000000001
RBP: ffffc90004e6fb70 R08: ffffffff90b0f26f R09: 1ffffffff2161e4d
R10: dffffc0000000000 R11: fffffbfff2161e4e R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920009cdf58
 irqentry_exit+0x63/0x70 kernel/entry/common.c:442
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:perf_trace_init+0x92/0x2d0 kernel/trace/trace_event_perf.c:223
Code: 49 00 48 8b 1d bf f4 2d 0b 48 81 fb 40 2b b8 8c 0f 84 75 01 00 00 4c 89 24 24 4c 8d 63 40 4c 89 e0 48 c1 e8 03 42 0f b6 04 30 <84> c0 0f 85 17 01 00 00 4d 63 24 24 4c 89 ff 4c 89 e6 e8 07 fe f7
RSP: 0018:ffffc90004e6fc38 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffffff8e02f5a0 RCX: ffff888025595a00
RDX: 0000000000000000 RSI: 0000000000000e4c RDI: 000000000000011d
RBP: 0000000000000002 R08: ffffffff8e20b46f R09: 1ffffffff1c4168d
R10: dffffc0000000000 R11: fffffbfff1c4168e R12: ffffffff8e02f5e0
R13: 0000000000000000 R14: dffffc0000000000 R15: 000000000000011d
 perf_tp_event_init+0x89/0x110 kernel/events/core.c:10129
 perf_try_init_event+0x12b/0x3d0 kernel/events/core.c:11644
 perf_init_event kernel/events/core.c:11708 [inline]
 perf_event_alloc+0xea0/0x21e0 kernel/events/core.c:12000
 __do_sys_perf_event_open kernel/events/core.c:12536 [inline]
 __se_sys_perf_event_open+0x701/0x1ec0 kernel/events/core.c:12428
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fcd20b9e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcd21b1a028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fcd20e25fa0 RCX: 00007fcd20b9e159
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007fcd20c3506b R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcd20e26038 R14: 00007fcd20e25fa0 R15: 00007ffe02796ed8
 </TASK>