rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (0 ticks this GP) idle=e1f/1/0x4000000000000000 softirq=24150/24150 fqs=5133 (detected by 1, t=10502 jiffies, g=30541, q=136048) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11723 Comm: syz.2.3059 Not tainted 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:native_apic_msr_eoi_write+0xb/0x10 arch/x86/include/asm/apic.h:214 Code: 3c 28 00 74 08 48 89 df e8 b2 03 93 00 48 8b 03 bf f0 03 00 00 44 89 f6 5b 41 5e 5d ff e0 90 b9 0b 08 00 00 31 c0 31 d2 0f 30 0f 1f 40 00 81 ff cf 00 00 00 7f 0c 83 ff 20 74 2a 83 ff 30 74 RSP: 0000:ffffc90000007fd8 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffffffff8c5cf9b8 RCX: 000000000000080b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000b0 RBP: 0000000000000000 R08: ffffffff8f8a5000 R09: ffffffff8f8a5008 R10: ffffffff8f8a5018 R11: ffffffff8f8a5010 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f0bf4be16c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000480 CR3: 000000002b0e0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_eoi arch/x86/include/asm/apic.h:400 [inline] ack_APIC_irq arch/x86/include/asm/apic.h:446 [inline] __sysvec_irq_work+0x51/0x250 arch/x86/kernel/irq_work.c:19 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x98/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713 RIP: 0010:rcu_read_unlock_special+0x84/0x520 kernel/rcu/tree_plugin.h:671 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 6d 6d 96 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a RSP: 0000:ffffc900037efa60 EFLAGS: 00000206 RAX: 9e5fc8a142a11d00 RBX: 1ffff920006fdf54 RCX: ffffffff96a96f03 RDX: dffffc0000000000 RSI: ffffffff8aab2b60 RDI: ffffffff8af9fc80 RBP: ffffc900037efb30 R08: ffffffff81871e38 R09: ffffed10171c765a R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8cb23500 R13: ffff888076a08458 R14: ffffc900037efaa0 R15: 1ffff920006fdf50 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:771 [inline] ieee80211_iterate_active_interfaces_atomic+0x12e/0x140 net/mac80211/util.c:831 mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1690 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1754 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1771 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0033:0x7ffc6af4b9b1 Code: f5 b6 ff ff 81 3d ef b6 ff ff ff ff ff 7f 48 8d 0d e4 e6 ff ff 48 0f 45 c8 48 8b 41 20 48 85 ff 74 03 48 89 07 5d c3 66 90 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 30 83 ff 0f 0f 87 b6 RSP: 002b:00007f0bf4be1040 EFLAGS: 00000206 RAX: 00007ffc6af4b9b0 RBX: 0000000000000004 RCX: 0000000000000000 RDX: 0000000000009c68 RSI: 00007f0bf4be10b0 RDI: 0000000000000001 RBP: 00007f0bf59dfc8b R08: 0000000000000003 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0bf5b18f80 R15: 00007ffc6ae63328