------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:526 dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.37-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Code: ec f8 c6 05 57 dc a1 05 01 48 8b 1c 24 48 89 df e8 a5 9c e0 ff 48 c7 c7 40 c4 e3 8b 48 89 de 48 89 c2 44 89 f1 e8 10 e8 b4 f8 <0f> 0b e9 8b fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c1 fb ff RSP: 0018:ffffc90000007b00 EFLAGS: 00010246 RAX: 33908a6a52515b00 RBX: ffff88807bb20000 RCX: ffffffff8ccbb800 RDX: 0000000000000102 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000ffffae00 R08: ffffffff81524cae R09: fffff52000000ed9 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100f764089 R13: 00000000ffffadd1 R14: 0000000000000000 R15: 0000000000000110 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd10b30a88 CR3: 000000000cc8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x19e/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1790 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803 __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:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:113 [inline] RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:572 Code: 09 fc f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 14 b7 02 f7 0f 1f 44 00 00 e8 0a 05 fc f6 0f 00 2d 83 f6 b8 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 2b 6b 52 f7 RSP: 0018:ffffffff8cc07b40 EFLAGS: 000002d3 RAX: ffffffff8a8dd636 RBX: 0000000000000000 RCX: ffffffff8ccbb800 RDX: 0000000000000000 RSI: ffffffff8aebd220 RDI: ffffffff8b3ccda0 RBP: ffffffff8cc07bd0 R08: ffffffff8a8dd618 R09: fffffbfff1997701 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1980f68 R13: ffff888017bc8004 R14: ffffffff8cc07b60 R15: dffffc0000000000 acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:709 cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3ce/0x680 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 rest_init+0x28f/0x2b0 init/main.c:729 arch_call_rest_init+0xa/0xa init/main.c:890 start_kernel+0x49b/0x544 init/main.c:1145 secondary_startup_64_no_verify+0xcf/0xdb ---------------- Code disassembly (best guess): 0: 09 fc or %edi,%esp 2: f6 48 83 e3 testb $0xe3,-0x7d(%rax) 6: 08 0f or %cl,(%rdi) 8: 85 0b test %ecx,(%rbx) a: 01 00 add %eax,(%rax) c: 00 4c 8d 74 add %cl,0x74(%rbp,%rcx,4) 10: 24 20 and $0x20,%al 12: e8 14 b7 02 f7 callq 0xf702b72b 17: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1c: e8 0a 05 fc f6 callq 0xf6fc052b 21: 0f 00 2d 83 f6 b8 00 verw 0xb8f683(%rip) # 0xb8f6ab 28: fb sti 29: f4 hlt * 2a: 4c 89 f3 mov %r14,%rbx <-- trapping instruction 2d: 48 c1 eb 03 shr $0x3,%rbx 31: 42 80 3c 3b 00 cmpb $0x0,(%rbx,%r15,1) 36: 74 08 je 0x40 38: 4c 89 f7 mov %r14,%rdi 3b: e8 2b 6b 52 f7 callq 0xf7526b6b