我使用appro rdk3.5的软件版本。在linux内核中把nand flash分成了8个区，现在我增加了一个spi flash 。分为4个区。在内核驱动的时候出现问题：启动udev的时候等待很久，然后出现下面的打印信息。如果两个flash 的分区小于8个就没有问题。多余8个分区都有问题。请教一下，需要配置哪里，支持超过8个分区？
Starting udev
udevadm settle - timeout of 180 seconds reached, the event queue contains:
/sys/devices/virtual/block/loop0 (709)
/sys/devices/virtual/block/loop1 (710)
/sys/devices/virtual/block/loop2 (711)
/sys/devices/virtual/block/loop3 (712)
/sys/devices/virtual/block/loop4 (713)
/sys/devices/virtual/block/loop5 (714)
/sys/devices/virtual/block/loop6 (715)
/sys/devices/virtual/block/loop7 (716)
/sys/devices/virtual/block/ram0 (717)
/sys/devices/virtual/block/ram1 (718)
/sys/devices/virtual/block/ram10 (719)
/sys/devices/virtual/block/ram11 (720)
/sys/devices/virtual/block/ram12 (721)
/sys/devices/virtual/block/ram13 (722)
/sys/devices/virtual/block/ram14 (723)
/sys/devices/virtual/block/ram15 (724)
/sys/devices/virtual/block/ram2 (725)
/sys/devices/virtual/block/ram3 (726)
/sys/devices/virtual/block/ram4 (727)
/sys/devices/virtual/block/ram5 (728)
/sys/devices/virtual/block/ram6 (729)
/sys/devices/virtual/block/ram7 (730)
/sys/devices/virtual/block/ram8 (731)
/sys/devices/virtual/block/ram9 (732)
udevd[65]: worker [109] unexpectedly returned with status 0x0100
udevd[65]: worker [109] failed while handling '/devices/virtual/block/loop0'
udevd[65]: worker [110] unexpectedly returned with status 0x0100
udevd[65]: worker [110] failed while handling '/devices/virtual/block/loop1'
udevd[65]: worker [111] unexpectedly returned with status 0x0100
