sched: RT throttling activated ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3873 at net/mac80211/tx.c:4926 __ieee80211_beacon_get+0x19f6/0x2030 net/mac80211/tx.c:5245 Modules linked in: CPU: 0 PID: 3873 Comm: syz-executor153 Not tainted 6.1.21-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4926 [inline] RIP: 0010:__ieee80211_beacon_get+0x19f6/0x2030 net/mac80211/tx.c:5245 Code: ff e8 6e 94 83 f7 0f 0b e9 67 ff ff ff e8 62 94 83 f7 0f 0b e9 04 e9 ff ff e8 56 94 83 f7 0f 0b e9 10 ee ff ff e8 4a 94 83 f7 <0f> 0b e9 8a f1 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 8c e9 RSP: 0018:ffffc90000007840 EFLAGS: 00010246 RAX: ffffffff8a05f396 RBX: 0000000000000000 RCX: ffff888074473a80 RDX: 0000000080000101 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007a30 R08: ffffffff8a05e51a R09: ffffffff8a05dd4c R10: 0000000000000003 R11: ffff888074473a80 R12: 1ffff92000000f1c R13: dffffc0000000000 R14: ffff888078fae248 R15: ffffc90000007aa0 FS: 00007fa25e1a9700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000202e3030 CR3: 000000001943d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb1/0x5a0 net/mac80211/tx.c:5332 ieee80211_beacon_get include/net/mac80211.h:5243 [inline] mac80211_hwsim_beacon_tx+0x1d2/0xaa0 drivers/net/wireless/mac80211_hwsim.c:2086 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:788 ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:824 mac80211_hwsim_beacon+0xd0/0x1e0 drivers/net/wireless/mac80211_hwsim.c:2142 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1766 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 02 71 58 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 c7 95 d6 f6 65 8b 05 08 39 7b 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc9000462f5a0 EFLAGS: 00000206 RAX: 5fb5b5951be9d400 RBX: 1ffff920008c5eb8 RCX: ffffffff816a098a RDX: dffffc0000000000 RSI: ffffffff8aebc5e0 RDI: 0000000000000001 RBP: ffffc9000462f630 R08: dffffc0000000000 R09: fffffbfff204de45 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff920008c5eb4 R14: ffffc9000462f5c0 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline] __skb_try_recv_datagram+0x1c7/0x6a0 net/core/datagram.c:265 __unix_dgram_recvmsg+0x3c1/0x1260 net/unix/af_unix.c:2451 ____sys_recvmsg+0x285/0x530 ___sys_recvmsg net/socket.c:2743 [inline] do_recvmmsg+0x46d/0xad0 net/socket.c:2837 __sys_recvmmsg net/socket.c:2916 [inline] __do_sys_recvmmsg net/socket.c:2939 [inline] __se_sys_recvmmsg net/socket.c:2932 [inline] __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2932 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa25e219ef9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa25e1a9308 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fa25e2a2438 RCX: 00007fa25e219ef9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007fa25e2a2430 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007fa25e2a243c R13: 00007fa25e26f1c4 R14: 0031313230386c6e R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 9c pushfq 1: 8f 44 24 20 popq 0x20(%rsp) 5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) a: 74 08 je 0x14 c: 4c 89 f7 mov %r14,%rdi f: e8 02 71 58 f7 callq 0xf7587116 14: f6 44 24 21 02 testb $0x2,0x21(%rsp) 19: 75 4e jne 0x69 1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 c7 95 d6 f6 callq 0xf6d695f6 <-- trapping instruction 2f: 65 8b 05 08 39 7b 75 mov %gs:0x757b3908(%rip),%eax # 0x757b393e 36: 85 c0 test %eax,%eax 38: 74 3f je 0x79 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 04 24 add $0x24,%al 3e: 0e (bad) 3f: 36 ss