KDL on boot: PANIC: _mutex_lock(): using uninitialized lock 0xd2054304

[pulkomandy]

[ipro1000] (em) bus_alloc_resource(3, [20], 0x0, 0xffffffff, 0x1,0x2)
add_memory_type_range(7423, 0xf252b000, 0x1000, 0)
set MTRRs to:
  mtrr:  0: base: 0xdac00000, size:   0x400000, type: 0
  mtrr:  1: base: 0xf0000000, size: 0x10000000, type: 0
  mtrr:  2: base: 0xe0000000, size: 0x20000000, type: 1
[ipro1000] (em) using 1024 tx descriptors and 1024 rx descriptors
[ipro1000] (em) msix_init qsets capped at 1
[ipro1000] (em) bus_alloc_resource(3, [28], 0x0, 0xffffffff, 0x1,0x2)
[ipro1000] (em) Unable to map MSIX table
allocate_io_interrupt_vectors: allocated 1 vectors starting from 27
msi_allocate_vectors: allocated 1 vectors starting from 27
[ipro1000] (em) Using an MSI interrupt
[ipro1000] (em) allocated for 1 tx_queues
[ipro1000] (em) allocated for 1 rx_queues
[ipro1000] (em) bus_alloc_resource(1, [1], 0x0, 0xffffffff, 0x1,0x6)
msi enabled: 0x0081
if_attach 0xd21facd8
ifmedia_add: Adding Entry...
  Type: Ethernet
  SubType: 10baseT/UTP
ifmedia_add: Adding Entry...
  Type: Ethernet
  SubType: 10baseT/UTP
  Shared Option[0]: full-duplex
ifmedia_add: Adding Entry...
  Type: Ethernet
  SubType: 100baseTX
ifmedia_add: Adding Entry...
  Type: Ethernet
  SubType: 100baseTX
  Shared Option[0]: full-duplex
ifmedia_add: Adding Entry...
  Type: Ethernet
  SubType: 1000baseT
  Shared Option[0]: full-duplex
ifmedia_add: Adding Entry...
  Type: Ethernet
  SubType: 1000baseT
ifmedia_add: Adding Entry...
  Type: Ethernet
  SubType: autoselect
ifmedia_set: target   Type: Ethernet
  SubType: autoselect
ifmedia_set: setting to   Type: Ethernet
  SubType: autoselect
ipro1000: init_driver(0x806c1820)
loaded driver /boot/system/add-ons/kernel/drivers/dev/net/ipro1000
etherpci: init_driver init_driver: etherpci not found
[net/ipro1000/0] compat_open(0x2)
register_domain(4, link)
PANIC: _mutex_lock(): using uninitialized lock 0xd2054304
Welcome to Kernel Debugging Land...
Thread 609 "/dev/net/iprowifi4965/0 consume" running on CPU 2
stack trace for thread 609 "/dev/net/iprowifi4965/0 consume"
    kernel stack: 0x806d3000 to 0x806d7000
frame               caller     <image>:function + offset
 0 806d6db8 (+  32) 8014a9da   <kernel_x86> arch_debug_stack_trace + 0x12
 1 806d6dd8 (+  16) 800a78e7   <kernel_x86> stack_trace_trampoline(NULL) + 0x0b
 2 806d6de8 (+  12) 8013c4c2   <kernel_x86> arch_debug_call_with_fault_handler + 0x1b
 3 806d6df4 (+  48) 800a9370   <kernel_x86> debug_call_with_fault_handler + 0x60
 4 806d6e24 (+  64) 800a7afb   <kernel_x86> kernel_debugger_loop(0x8018e517 "PANIC: ", 0x801894c0 "_mutex_lock(): using uninitialized lock %p", 0x806d6ed0 "CÒÌÌÌ̆", int32: 2) + 0x20f
 5 806d6e64 (+  48) 800a7e9f   <kernel_x86> kernel_debugger_internal(0x8018e517 "PANIC: ", 0x801894c0 "_mutex_lock(): using uninitialized lock %p", 0x806d6ed0 "CÒÌÌÌ̆", int32: 2) + 0x77
 6 806d6e94 (+  48) 800a96f2   <kernel_x86> panic + 0x3a
 7 806d6ec4 (+  80) 800959da   <kernel_x86> _mutex_lock + 0xea
 8 806d6f14 (+  64) 811243c9   </boot/system/add-ons/kernel/network/stack> fifo_dequeue_buffer(net_fifo*: 0xd2054304, uint32: 0x0 (0), int64: 9223372036854775807, net_buffer*: 0x806d6f9c) + 0x31
 9 806d6f54 (+  96) 81111a4e   </boot/system/add-ons/kernel/network/stack> device_consumer_thread(0xd2054298) + 0x172
10 806d6fb4 (+  48) 8008703e   <kernel_x86> common_thread_entry(0x806d6ff0) + 0x3a

I had serial logging enabled, in case that makes a difference.

[waddlesplash]

net_fifo objects and their locks are fully managed by the stack; they are fed by calling read() on the device, but that's it. So this isn't a driver bug.