Log of udev event, when the bug happens. # udevadm monitor | grep -v power_supply monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent KERNEL[258304.180050] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd1 (block) KERNEL[258304.180140] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd2 (block) KERNEL[258304.180259] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd3 (block) KERNEL[258304.180306] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd4 (block) KERNEL[258304.185959] change /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd (block) UDEV [258304.194320] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd1 (block) UDEV [258304.197464] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd2 (block) UDEV [258304.201738] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd3 (block) UDEV [258304.206277] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd/sdd4 (block) UDEV [258304.231082] change /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd (block) KERNEL[258909.512337] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/bsg/5:0:0:0 (bsg) KERNEL[258909.512751] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/scsi_generic/sg2 (scsi_generic) KERNEL[258909.512770] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/scsi_device/5:0:0:0 (scsi_device) KERNEL[258909.512849] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/scsi_disk/5:0:0:0 (scsi_disk) UDEV [258909.514595] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/bsg/5:0:0:0 (bsg) UDEV [258909.523015] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/scsi_generic/sg2 (scsi_generic) UDEV [258909.523043] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/scsi_device/5:0:0:0 (scsi_device) UDEV [258909.525664] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/scsi_disk/5:0:0:0 (scsi_disk) KERNEL[258916.896444] remove /devices/virtual/bdi/8:48 (bdi) KERNEL[258916.896543] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd (block) UDEV [258916.898043] remove /devices/virtual/bdi/8:48 (bdi) UDEV [258916.899241] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0/block/sdd (block) KERNEL[258917.140120] unbind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0 (scsi) KERNEL[258917.140157] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0 (scsi) UDEV [258917.142078] unbind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0 (scsi) UDEV [258917.143694] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0/5:0:0:0 (scsi) KERNEL[258917.168225] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0 (scsi) KERNEL[258917.168252] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/scsi_host/host5 (scsi_host) KERNEL[258917.168270] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5 (scsi) KERNEL[258917.168796] unbind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) KERNEL[258917.168828] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) KERNEL[258917.169312] unbind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) KERNEL[258917.169357] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) UDEV [258917.170358] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/scsi_host/host5 (scsi_host) UDEV [258917.170801] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5/target5:0:0 (scsi) UDEV [258917.172177] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host5 (scsi) UDEV [258917.173999] unbind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) UDEV [258917.176573] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) UDEV [258917.178082] unbind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) UDEV [258917.198696] remove /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) KERNEL[258922.733951] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) KERNEL[258922.734744] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) KERNEL[258922.737459] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4 (scsi) KERNEL[258922.737492] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/scsi_host/host4 (scsi_host) KERNEL[258922.737533] bind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) KERNEL[258922.737583] bind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) KERNEL[258922.740545] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0 (scsi) KERNEL[258922.740582] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0 (scsi) KERNEL[258922.740611] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk) KERNEL[258922.740645] bind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0 (scsi) KERNEL[258922.740663] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device) KERNEL[258922.740748] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/scsi_generic/sg2 (scsi_generic) KERNEL[258922.740809] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg) KERNEL[258922.741619] add /devices/virtual/bdi/8:32 (bdi) UDEV [258922.743002] add /devices/virtual/bdi/8:32 (bdi) KERNEL[258922.743907] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/block/sdc (block) UDEV [258922.778667] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) UDEV [258922.788063] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) UDEV [258922.789932] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4 (scsi) UDEV [258922.791650] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/scsi_host/host4 (scsi_host) UDEV [258922.793313] bind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0 (usb) UDEV [258922.795398] bind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2 (usb) UDEV [258922.797104] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0 (scsi) UDEV [258922.798765] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0 (scsi) UDEV [258922.800237] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk) UDEV [258922.801464] bind /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0 (scsi) UDEV [258922.803547] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/scsi_generic/sg2 (scsi_generic) UDEV [258922.805259] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg) UDEV [258922.805356] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device) UDEV [258922.828310] add /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.4/2-4.4.4/2-4.4.4.4/2-4.4.4.4.2/2-4.4.4.4.2:1.0/host4/target4:0:0/4:0:0:0/block/sdc (block)