sched: RT throttling activated ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:5135 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5135 [inline] WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:5135 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5546 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5135 [inline] RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5546 Code: f7 4c 89 ef e8 90 08 b1 f7 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 5b aa 72 f7 0f 0b e9 61 f8 ff ff e8 4f aa 72 f7 <0f> 0b e9 85 fb ff ff e8 43 aa 72 f7 48 c7 c7 a0 f3 66 8f 4c 89 e6 RSP: 0018:ffffc90000007a18 EFLAGS: 00010246 RAX: ffffffff8a153451 RBX: dffffc0000000000 RCX: ffffffff8de93480 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8de93480 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805bdc2420 R13: ffff88805cfa9824 R14: ffff88805bdc2910 R15: ffff88805cfa9800 FS: 0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f871552ed40 CR3: 000000001f341000 CR4: 00000000003506f0 Call Trace: ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5673 ieee80211_beacon_get include/net/mac80211.h:5447 [inline] mac80211_hwsim_beacon_tx+0x3bd/0x770 drivers/net/wireless/virtual/mac80211_hwsim.c:2271 __iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:766 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2301 __run_hrtimer kernel/time/hrtimer.c:1754 [inline] __hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818 hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835 handle_softirqs+0x27d/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:pv_native_safe_halt+0xf/0x10 arch/x86/kernel/paravirt.c:148 Code: f1 33 02 c3 cc cc cc cc cc cc cc f3 0f 1e fa 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 66 90 0f 00 2d e3 61 50 00 fb f4 66 0f 1f 00 55 41 57 41 56 41 54 53 50 8b 2f eb 2c 89 cb 80 f9 RSP: 0018:ffffffff8de07d80 EFLAGS: 000002c2 RAX: 4d51b81175331200 RBX: ffffffff81635d01 RCX: 4d51b81175331200 RDX: 0000000000000001 RSI: ffffffff8aead140 RDI: ffffffff8b3c5260 RBP: ffffffff8de07eb8 R08: ffff8880b8c36b6b R09: 1ffff11017186d6d R10: dffffc0000000000 R11: ffffed1017186d6e R12: 1ffffffff1bc0fbc R13: dffffc0000000000 R14: 1ffffffff1bd2690 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:108 [inline] default_idle+0x13/0x20 arch/x86/kernel/process.c:753 default_idle_call+0x6c/0xa0 kernel/sched/idle.c:97 cpuidle_idle_call kernel/sched/idle.c:178 [inline] do_idle+0x221/0x5c0 kernel/sched/idle.c:302 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:401 rest_init+0x2e2/0x300 init/main.c:710 arch_call_rest_init+0xe/0x10 init/main.c:806 start_kernel+0x461/0x4e0 init/main.c:1051 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:555 x86_64_start_kernel+0x60/0x60 arch/x86/kernel/head64.c:536 secondary_startup_64_no_verify+0x179/0x17b ---------------- Code disassembly (best guess): 0: f1 int1 1: 33 02 xor (%rdx),%eax 3: c3 ret 4: cc int3 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: cc int3 a: cc int3 b: f3 0f 1e fa endbr64 f: 0f 0b ud2 11: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 18: 00 00 00 1b: f3 0f 1e fa endbr64 1f: 66 90 xchg %ax,%ax 21: 0f 00 2d e3 61 50 00 verw 0x5061e3(%rip) # 0x50620b 28: fb sti 29: f4 hlt * 2a: c3 ret <-- trapping instruction 2b: 66 0f 1f 00 nopw (%rax) 2f: 55 push %rbp 30: 41 57 push %r15 32: 41 56 push %r14 34: 41 54 push %r12 36: 53 push %rbx 37: 50 push %rax 38: 8b 2f mov (%rdi),%ebp 3a: eb 2c jmp 0x68 3c: 89 cb mov %ecx,%ebx 3e: 80 .byte 0x80 3f: f9 stc