rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2681 jiffies s: 86925 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: 21 Comm: ksoftirqd/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:debug_lockdep_rcu_enabled+0x28/0x30 kernel/rcu/update.c:280
Code: 00 00 31 c0 83 3d a7 e3 cc 04 00 74 1d 83 3d 32 17 cd 04 00 74 14 65 48 8b 0d 84 7f ce 75 31 c0 83 b9 dc 0a 00 00 00 0f 94 c0 <c3> 00 00 cc cc 00 00 cc 48 8b 3c 24 e8 d7 fa ff ff 66 90 66 90 e9
RSP: 0018:ffffc900001b7568 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff88813fef9e00
RDX: ffff88813fef9e00 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900001b7678 R08: dffffc0000000000 R09: 1ffffffff2326848
R10: dffffc0000000000 R11: fffffbfff2326849 R12: ffffffff8d980160
R13: 1ffff92000036ebc R14: ffff88807de60200 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c37803a CR3: 0000000055c26000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 rcu_read_lock_held_common kernel/rcu/update.c:104 [inline]
 rcu_read_lock_held+0x6/0x40 kernel/rcu/update.c:309
 trace_call_bpf+0x19e/0x6b0 kernel/trace/bpf_trace.c:135
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10037
 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 d2 68 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:ffffc900001b78a0 EFLAGS: 00000206
RAX: e7d65ed97cfd8900 RBX: 1ffff92000036f1c RCX: e7d65ed97cfd8900
RDX: dffffc0000000000 RSI: ffffffff8a8c19a0 RDI: ffffffff8adf7160
RBP: ffffc900001b79a0 R08: ffff8880b8d357cb R09: 1ffff110171a6af9
R10: dffffc0000000000 R11: ffffed10171a6afa R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8d3bb00 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 process_backlog+0x3ff/0x710 net/core/dev.c:6063
 __napi_poll+0xbb/0x460 net/core/dev.c:6629
 napi_poll net/core/dev.c:6696 [inline]
 net_rx_action+0x622/0xbc0 net/core/dev.c:6810
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:968
 smpboot_thread_fn+0x667/0xa30 kernel/smpboot.c:164
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>