------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out 34550 ms WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:525 dev_watchdog+0x8cd/0x8f0 net/sched/sch_generic.c:525 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.7.0-rc7-syzkaller-00016-gf5837722ffec #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:dev_watchdog+0x8cd/0x8f0 net/sched/sch_generic.c:525 Code: 2f 77 06 01 90 48 8b 5c 24 10 48 89 df e8 8b 31 e6 ff 45 89 e8 89 e9 48 89 de 48 89 c2 48 c7 c7 a0 7f ec 8b e8 44 87 c1 f8 90 <0f> 0b 90 90 e9 23 fd ff ff e8 85 45 fb f8 90 0f 0b 90 e9 bc fc ff RSP: 0018:ffffc90000007be0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8880240fe000 RCX: ffffffff814db519 RDX: ffffffff8cc95900 RSI: ffffffff814db526 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000002 R12: ffff88801d1d2800 R13: 00000000000086f6 R14: ffff8880240fe548 R15: 000000010002d601 FS: 0000000000000000(0000) GS:ffff88802c600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002d822000 CR3: 000000001b96e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x193/0x590 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x764/0xb20 kernel/time/timer.c:2022 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035 __do_softirq+0x21a/0x8de kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline] RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:743 Code: 89 07 49 c7 c0 08 00 00 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 76 ff ff ff cc cc cc cc f3 0f 1e fa 66 90 0f 00 2d 63 94 46 00 fb f4 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 65 RSP: 0018:ffffffff8cc07e18 EFLAGS: 00000246 RAX: 00000000009d61a9 RBX: 0000000000000000 RCX: ffffffff8a7ffc87 RDX: 0000000000000000 RSI: ffffffff8accaec0 RDI: ffffffff8b2efd20 RBP: fffffbfff1992b20 R08: 0000000000000001 R09: ffffed10058c6dbd R10: ffff88802c636deb R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff8cc95900 R14: ffffffff8f193d10 R15: 0000000000000000 default_idle_call+0x69/0xa0 kernel/sched/idle.c:97 cpuidle_idle_call kernel/sched/idle.c:170 [inline] do_idle+0x332/0x400 kernel/sched/idle.c:282 cpu_startup_entry+0x50/0x60 kernel/sched/idle.c:380 rest_init+0x16f/0x2b0 init/main.c:730 arch_call_rest_init+0x13/0x30 init/main.c:827 start_kernel+0x39f/0x480 init/main.c:1072 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:555 x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:536 secondary_startup_64_no_verify+0x178/0x17b ---------------- Code disassembly (best guess): 0: 89 07 mov %eax,(%rdi) 2: 49 c7 c0 08 00 00 00 mov $0x8,%r8 9: 4d 29 c8 sub %r9,%r8 c: 4c 01 c7 add %r8,%rdi f: 4c 29 c2 sub %r8,%rdx 12: e9 76 ff ff ff jmp 0xffffff8d 17: cc int3 18: cc int3 19: cc int3 1a: cc int3 1b: f3 0f 1e fa endbr64 1f: 66 90 xchg %ax,%ax 21: 0f 00 2d 63 94 46 00 verw 0x469463(%rip) # 0x46948b 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 33: 00 00 00 00 37: 0f 1f 40 00 nopl 0x0(%rax) 3b: f3 0f 1e fa endbr64 3f: 65 gs