rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=bd9/1/0x4000000000000002 softirq=19045/19050 fqs=5246 
	(detected by 1, t=10502 jiffies, g=26153, q=4542)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8523 Comm: syz.7.908 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4686 [inline]
RIP: 0010:__lock_acquire+0x593/0x7c60 kernel/locking/lockdep.c:4962
Code: 00 83 3d ef 0a af 14 00 0f 84 fe 01 00 00 31 db 48 81 c3 b8 00 00 00 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 97 61 00 00 <44> 0f b6 33 48 8b 44 24 58 0f b6 04 10 84 c0 0f 85 a6 61 00 00 41
RSP: 0018:ffffc90000006e80 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff8f932ff8 RCX: ffffffff815c043b
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8ffaa0c0
RBP: ffffc900000070d0 R08: dffffc0000000000 R09: fffffbfff1ff5419
R10: fffffbfff1ff5419 R11: 1ffffffff1ff5418 R12: ffff88802b64c730
R13: ffff88802b64bb80 R14: 0000000000000000 R15: ffff88802b64c710
FS:  00007f941e8ac6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efe899d7766 CR3: 0000000032b01000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:313
 rcu_read_lock include/linux/rcupdate.h:740 [inline]
 __perf_output_begin kernel/events/ring_buffer.c:163 [inline]
 perf_output_begin_forward+0x97/0xa30 kernel/events/ring_buffer.c:271
 __perf_event_output kernel/events/core.c:7804 [inline]
 perf_event_output_forward+0x15c/0x280 kernel/events/core.c:7822
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_tp_event+0x32c/0xb50 kernel/events/core.c:10047
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
 perf_trace_preemptirq_template+0x2be/0x380 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:rcu_read_unlock_special+0x84/0x480 kernel/rcu/tree_plugin.h:674
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 ed 11 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900000079e0 EFLAGS: 00000206
RAX: 15c06381b08c3600 RBX: 1ffff92000000f40 RCX: 15c06381b08c3600
RDX: dffffc0000000000 RSI: ffffffff8a0b1be0 RDI: ffffffff8a59e800
RBP: ffffc90000007ac0 R08: dffffc0000000000 R09: fffffbfff1ff5438
R10: fffffbfff1ff5438 R11: 1ffffffff1ff5437 R12: ffffffff8c120c00
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 hsr_announce+0x294/0x300 net/hsr/hsr_device.c:410
 call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:arch_atomic64_read arch/x86/include/asm/atomic64_64.h:22 [inline]
RIP: 0010:arch_atomic_long_read include/linux/atomic/atomic-long.h:29 [inline]
RIP: 0010:atomic_long_read include/linux/atomic/atomic-instrumented.h:1184 [inline]
RIP: 0010:__mutex_trylock_common+0x9a/0x250 kernel/locking/mutex.c:101
Code: a7 7e 48 89 04 24 be 08 00 00 00 e8 e0 f6 60 00 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 3b f5 60 00 48 8d 5c 24 40 <49> 8b 06 48 c7 c2 80 0f 0b 96 48 c1 ea 03 48 c7 c6 48 69 69 8d 48
RSP: 0018:ffffc90002e3f820 EFLAGS: 00000246
RAX: 1ffffffff1838d8c RBX: ffffc90002e3f860 RCX: ffffffff815b3f60
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8c1c6c60
RBP: ffffc90002e3f8d0 R08: dffffc0000000000 R09: fffffbfff1838d8d
R10: fffffbfff1838d8d R11: 1ffffffff1838d8c R12: 0000000000000000
R13: 1ffff920005c7f08 R14: ffffffff8c1c6c60 R15: 0000000000000000
 __mutex_trylock kernel/locking/mutex.c:146 [inline]
 __mutex_lock_common+0x1f9/0x2390 kernel/locking/mutex.c:598
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_killable_nested+0x17/0x20 kernel/locking/mutex.c:758
 pcpu_alloc+0x256/0x1770 mm/percpu.c:1774
 bpf_prog_alloc_no_stats+0xcf/0x2c0 kernel/bpf/core.c:99
 bpf_prog_alloc+0x1a/0x1e0 kernel/bpf/core.c:124
 bpf_prog_load+0x7b3/0x1550 kernel/bpf/syscall.c:2301
 __sys_bpf+0x4c2/0x670 kernel/bpf/syscall.c:4657
 __do_sys_bpf kernel/bpf/syscall.c:4761 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4759 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759
 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: 0033:0x7f9420645749
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:00007f941e8ac038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f942089bfa0 RCX: 00007f9420645749
RDX: 0000000000000080 RSI: 0000200000000200 RDI: 0000000000000005
RBP: 00007f94206c9f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f942089c038 R14: 00007f942089bfa0 R15: 00007ffd3ea16c08
 </TASK>