rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2657 jiffies s: 18669 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: 9622 Comm: syz.1.1892 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:kvm_clock_read arch/x86/kernel/kvmclock.c:80 [inline]
RIP: 0010:kvm_sched_clock_read+0x1b/0x40 arch/x86/kernel/kvmclock.c:91
Code: 74 fc 02 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 ff 05 51 aa c9 7e 65 48 8b 3d 91 af c9 7e e8 ac 05 00 00 65 ff 0d 3d aa c9 7e <74> 08 48 2b 05 94 7b 2c 0b c3 e8 9e be c7 ff 48 2b 05 87 7b 2c 0b
RSP: 0018:ffffc900001e09b8 EFLAGS: 00000002
RAX: 000000556c809655 RBX: ffffc900001e0a00 RCX: 0000000000000001
RDX: 1ffffffff1f41c08 RSI: ffffffff8fa0e05c RDI: ffffffff8fa0e040
RBP: ffffc900001e0a78 R08: ffffffff8fa0e048 R09: ffffffff8fa0e058
R10: ffffffff8fa0e050 R11: ffffffff8fa0e043 R12: dffffc0000000000
R13: dffffc0000000000 R14: 1ffff9200003c13c R15: ffffffff8c653988
FS:  00007f99cf61e6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000006cc000 CR3: 00000000589fa000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 sched_clock_cpu+0x6e/0x260 kernel/sched/clock.c:369
 irqtime_account_irq+0x6a/0x1b0 kernel/sched/cputime.c:60
 account_hardirq_exit include/linux/vtime.h:159 [inline]
 __irq_exit_rcu+0x99/0x230 kernel/softirq.c:676
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x4f/0xc0 arch/x86/kernel/irq_work.c:17
 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 d2 33 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:ffffc900001e0c20 EFLAGS: 00000206
RAX: 3984171313105700 RBX: 1ffff9200003c18c RCX: 3984171313105700
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: ffffffff8adf1320
RBP: ffffc900001e0d08 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 rebalance_domains+0x8da/0xa10 kernel/sched/fair.c:11051
 handle_softirqs+0x2a1/0x930 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:finish_task_switch+0x26a/0x8f0 kernel/sched/core.c:5124
Code: 0f 84 3b 01 00 00 48 85 db 0f 85 5a 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 b0 4c de 08 e8 4b 2d 2f 00 fb 4c 8b 65 c0 <49> 8d bc 24 f8 15 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc9000e95f818 EFLAGS: 00000286
RAX: 3984171313105700 RBX: 0000000000000000 RCX: 3984171313105700
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: ffffffff8adf1320
RBP: ffffc9000e95f870 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: ffff8880519c5940
R13: dffffc0000000000 R14: ffff8880300d1dc0 R15: ffff8880b8f3b5d0
 context_switch kernel/sched/core.c:5248 [inline]
 __schedule+0x11d9/0x40e0 kernel/sched/core.c:6562
 preempt_schedule_irq+0xbb/0x160 kernel/sched/core.c:6874
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:64
Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 <f3> aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01
RSP: 0018:ffffc9000e95fb80 EFLAGS: 00010202
RAX: 1ffff11047fffa00 RBX: ffff88814767d848 RCX: 0000000000004f80
RDX: 00000000000070c0 RSI: 0000000000000000 RDI: ffffe8ffff98f040
RBP: ffff88823fffd148 R08: ffffe8ffff993fbf R09: ffffe8ffff98cf00
R10: dffffc0000000000 R11: fffff91ffff327f8 R12: 0000000000000001
R13: 1ffff11028ecfb09 R14: ffffe8ffff98cf00 R15: 1ffffffff1c3febe
 pcpu_alloc+0xff7/0x19e0 mm/percpu.c:1882
 bpf_map_alloc_percpu+0xb5/0x1a0 kernel/bpf/syscall.c:498
 bpf_array_alloc_percpu kernel/bpf/arraymap.c:38 [inline]
 array_map_alloc+0x376/0x6f0 kernel/bpf/arraymap.c:152
 find_and_alloc_map kernel/bpf/syscall.c:133 [inline]
 map_create+0x534/0x1000 kernel/bpf/syscall.c:1149
 __sys_bpf+0x38b/0x780 kernel/bpf/syscall.c:5013
 __do_sys_bpf kernel/bpf/syscall.c:5135 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5133 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5133
 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: 0033:0x7f99ce79cdd9
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:00007f99cf61e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f99cea15fa0 RCX: 00007f99ce79cdd9
RDX: 0000000000000050 RSI: 0000200000000b00 RDI: 2000000000000000
RBP: 00007f99ce832d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f99cea16038 R14: 00007f99cea15fa0 R15: 00007ffe92248ec8
 </TASK>