rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-....: (1 GPs behind) idle=b5f/1/0x4000000000000002 softirq=69947/69948 fqs=5248
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P23880
(detected by 1, t=10502 jiffies, g=106225, q=2151)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 23880 Comm: syz.0.4799 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:212 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:156 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:263 [inline]
RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:208
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 7f 9a d0 02 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc90000007688 EFLAGS: 00000046
RAX: 00000000000000f6 RBX: ffffffff8be35a20 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: 0000000000000000 R08: ffff8880b9033d77 R09: 1ffff110172067ae
R10: dffffc0000000000 R11: ffffed10172067af R12: 0000000000000000
R13: dffffc0000000001 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007fab5d6c46c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c172e CR3: 0000000066d25000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000100000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
arch_irq_work_raise+0x82/0xd0 arch/x86/kernel/irq_work.c:31
irq_work_queue_on+0x11e/0x220 kernel/irq_work.c:109
rcu_read_unlock_special+0x37b/0x4a0 kernel/rcu/tree_plugin.h:667
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
rcu_read_unlock include/linux/rcupdate.h:772 [inline]
__perf_event_output kernel/events/core.c:7813 [inline]
perf_event_output_forward+0x255/0x2e0 kernel/events/core.c:7822
__perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
perf_tp_event+0x383/0xbf0 kernel/events/core.c:10047
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:ffs arch/x86/include/asm/bitops.h:297 [inline]
RIP: 0010:handle_softirqs+0x1a9/0x830 kernel/softirq.c:564
Code: 24 78 44 89 64 24 28 0f b7 db 48 c7 c7 80 19 2a 8a e8 6b 27 74 08 65 66 c7 05 11 35 ba 7e 00 00 e8 5c 11 36 00 fb 89 5c 24 34 ff ff ff ff 0f bc 44 24 34 41 89 c5 41 ff c5 0f 85 d2 00 00 00
RSP: 0018:ffffc90000007e20 EFLAGS: 00000282
RAX: 932bc94739ed5200 RBX: 0000000000000200 RCX: 932bc94739ed5200
RDX: dffffc0000000000 RSI: ffffffff8a2b3180 RDI: ffffffff8a7a09c0
RBP: ffffc90000007f30 R08: ffff8880b903b30b R09: 1ffff11017207661
R10: dffffc0000000000 R11: ffffed1017207662 R12: 000000000000000a
R13: 0000000000000000 R14: ffff88807b20bb80 R15: dffffc0000000000
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__rcu_read_unlock+0x73/0xd0 kernel/rcu/tree_plugin.h:422
Code: 84 c0 75 5f 41 83 3e 00 75 20 43 0f b6 04 3c 84 c0 75 3a 8b 03 3d 00 00 00 40 73 0a 5b 41 5c 41 5d 41 5e 41 5f c3 0f 0b eb f2 58 00 00 00 eb d9 89 d9 80 e1 07 80 c1 03 38 c1 7c ac 49 89 fe
RSP: 0018:ffffc9000300f638 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88807b20bfbc RCX: 0000000000080000
RDX: ffffc9000d091000 RSI: 00000000000168d4 RDI: ffff88807b20bb80
RBP: 0000000000000001 R08: ffff888024ff85ab R09: 1ffff110049ff0b5
R10: dffffc0000000000 R11: ffffed10049ff0b6 R12: 1ffff1100f6417f7
R13: dffffc0000000000 R14: ffff88807b20bfc0 R15: dffffc0000000000
rcu_read_unlock include/linux/rcupdate.h:772 [inline]
netlink_deliver_tap+0x153/0x180 net/netlink/af_netlink.c:338
__netlink_sendskb net/netlink/af_netlink.c:1261 [inline]
netlink_sendskb+0x64/0x130 net/netlink/af_netlink.c:1270
nlmsg_unicast include/net/netlink.h:1061 [inline]
netlink_ack+0x87d/0xb50 net/netlink/af_netlink.c:2477
netlink_rcv_skb+0x27a/0x440 net/netlink/af_netlink.c:2513
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x774/0x920 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:706 [inline]
__sock_sendmsg net/socket.c:718 [inline]
____sys_sendmsg+0x5b7/0x8f0 net/socket.c:2445
___sys_sendmsg+0x236/0x2e0 net/socket.c:2499
__sys_sendmsg net/socket.c:2528 [inline]
__do_sys_sendmsg net/socket.c:2537 [inline]
__se_sys_sendmsg+0x1af/0x290 net/socket.c:2535
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fab5f46ae59
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:00007fab5d6c4028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fab5f6e3fa0 RCX: 00007fab5f46ae59
RDX: 0000000000000000 RSI: 0000200000000600 RDI: 0000000000000004
RBP: 00007fab5f500d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fab5f6e4038 R14: 00007fab5f6e3fa0 R15: 00007ffd851d2278
task:syz.0.4799 state:R running task stack:23312 pid:23880 ppid: 20119 flags:0x0000400c
Call Trace: