Comment 22 for bug 369850

I exhibit similar behaviors (namely module in use and rebooting without said module)

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root@comp1:~# udevadm monitor --udev -e
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing

UDEV [1241815082.399105] add /bus/platform/drivers/parport_pc (drivers)
UDEV_LOG=3
ACTION=add
DEVPATH=/bus/platform/drivers/parport_pc
SUBSYSTEM=drivers
SEQNUM=1326

UDEV [1241815082.408403] add /devices/pnp0/00:01/ppdev/parport0 (ppdev)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pnp0/00:01/ppdev/parport0
SUBSYSTEM=ppdev
SEQNUM=1327
DEVNAME=/dev/parport0
MAJOR=99
MINOR=0
DEVLINKS=/dev/char/99:0

UDEV [1241815082.412481] add /module/parport_pc (module)
UDEV_LOG=3
ACTION=add
DEVPATH=/module/parport_pc
SUBSYSTEM=module
SEQNUM=1325

UDEV [1241815082.418092] add /devices/pnp0/00:01/printer/lp0 (printer)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pnp0/00:01/printer/lp0
SUBSYSTEM=printer
SEQNUM=1328
DEVNAME=/dev/lp0
MAJOR=6
MINOR=0
DEVLINKS=/dev/char/6:0

UDEV [1241815082.423160] add /bus/pnp/drivers/parport_pc (drivers)
UDEV_LOG=3
ACTION=add
DEVPATH=/bus/pnp/drivers/parport_pc
SUBSYSTEM=drivers
SEQNUM=1329

UDEV [1241815082.457832] add /bus/pci/drivers/parport_pc (drivers)
UDEV_LOG=3
ACTION=add
DEVPATH=/bus/pci/drivers/parport_pc
SUBSYSTEM=drivers
SEQNUM=1336

UDEV [1241815082.631216] add /devices/platform/parport_pc.956 (platform)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/platform/parport_pc.956
SUBSYSTEM=platform
MODALIAS=platform:parport_pc
SEQNUM=1330

UDEV [1241815082.633744] add /devices/platform/parport_pc.888 (platform)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/platform/parport_pc.888
SUBSYSTEM=platform
MODALIAS=platform:parport_pc
SEQNUM=1332

UDEV [1241815082.636140] add /devices/platform/parport_pc.632 (platform)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/platform/parport_pc.632
SUBSYSTEM=platform
MODALIAS=platform:parport_pc
SEQNUM=1334

UDEV [1241815082.639935] remove /devices/platform/parport_pc.956 (platform)
UDEV_LOG=3
ACTION=remove
DEVPATH=/devices/platform/parport_pc.956
SUBSYSTEM=platform
MODALIAS=platform:parport_pc
SEQNUM=1331

UDEV [1241815082.643563] remove /devices/platform/parport_pc.888 (platform)
UDEV_LOG=3
ACTION=remove
DEVPATH=/devices/platform/parport_pc.888
SUBSYSTEM=platform
MODALIAS=platform:parport_pc
SEQNUM=1333

UDEV [1241815082.647127] remove /devices/platform/parport_pc.632 (platform)
UDEV_LOG=3
ACTION=remove
DEVPATH=/devices/platform/parport_pc.632
SUBSYSTEM=platform
MODALIAS=platform:parport_pc
SEQNUM=1335
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