关于udev的三个问题

• jadenfu

  Posts: 8

  Joined: 2024-02-20 1:30

  2024-04-23 4:10

  您好，我这边有三个问题希望能够获得解答：
  
  第一个问题：
  LuckFox Pico Max ，编译后日志出现以下错误信息，我的系统中不需要udev，请问怎样才能解决上边的错误信息，有哪些应用需要使用udev驱动？
  daemon.info kernel: [ 1.235943] udevd[81]: starting version 3.2.7
  daemon.err kernel: [ 1.250779] udevd[81]: specified group 'input' unknown
  daemon.err kernel: [ 1.251627] udevd[81]: specified group 'kvm' unknown
  daemon.info kernel: [ 1.271437] udevd[82]: starting eudev-3.2.7
  daemon.err kernel: [ 1.584511] udevd[95]: failed to execute '/lib/udev/mtd_probe' 'mtd_probe /dev/mtd0ro': No such file or directory
  daemon.err kernel: [ 1.585945] udevd[96]: failed to execute '/lib/udev/mtd_probe' 'mtd_probe /dev/mtd1ro': No such file or directory
  daemon.err kernel: [ 1.586927] udevd[97]: failed to execute '/lib/udev/mtd_probe' 'mtd_probe /dev/mtd2ro': No such file or directory
  aemon.err kernel: [ 1.590296] udevd[98]: failed to execute '/lib/udev/mtd_probe' 'mtd_probe /dev/mtd3ro': No such file or directory
  daemon.err kernel: [ 1.611060] udevd[100]: failed to execute '/lib/udev/mtd_probe' 'mtd_probe /dev/mtd4ro': No such file or directory
  daemon.err kernel: [ 1.613678] udevd[101]: failed to execute '/lib/udev/mtd_probe' 'mtd_probe /dev/mtd5ro': No such file or directory
  daemon.err kernel: [ 1.626569] udevd[102]: failed to execute '/lib/udev/mtd_probe' 'mtd_probe /dev/mtd6ro': No such file or directory
  
  第二个问题：
  已经选择了默认thumb2模式编译，为什么会出现以下错误日志？
  kern.err kernel: [ 1.604213] mpp_vcodec: version magic '5.10.110 mod_unload ARMv7 thumb2 p2v8 ' should be '5.10.110-abc-1.0.0 mod_unload ARMv7 thumb2 p2v8 '
  kern.err kernel: [ 1.608106] mpp_vcodec: version magic '5.10.110 mod_unload ARMv7 thumb2 p2v8 ' should be '5.10.110-abc-1.0.0 mod_unload ARMv7 thumb2 p2v8 '
  kern.err kernel: [ 1.631061] rknpu: version magic '5.10.110-abc-1.0.0 mod_unload ARMv7 p2v8 ' should be '5.10.110-abc-1.0.0 mod_unload ARMv7 thumb2 p2v8 '
  kern.err kernel: [ 1.631482] rknpu: version magic '5.10.110-abc-1.0.0 mod_unload ARMv7 p2v8 ' should be '5.10.110-abc-1.0.0 mod_unload ARMv7 thumb2 p2v8 '
  kern.err kernel: [ 1.868282] rockit: version magic '5.10.110 mod_unload ARMv7 thumb2 p2v8 ' should be '5.10.110-abc-1.0.0 mod_unload ARMv7 thumb2 p2v8 '
  kern.err kernel: [ 1.869605] rockit: version magic '5.10.110 mod_unload ARMv7 thumb2 p2v8 ' should be '5.10.110-abc-1.0.0 mod_unload ARMv7 thumb2 p2v8 '
  
  第三个问题：日志出现以下错误提示，请问这些错误和哪些内核设置有关？
  Jan 1 12:04:35 abc kern.err kernel: [ 0.009720] DMA: failed to allocate 0 KiB pool for atomic coherent allocation
  Jan 1 12:04:35 abc kern.err kernel: [ 0.100582] cpu cpu0: Failed to get cpu_leakage
  Jan 1 12:04:35 abc kern.info kernel: [ 0.101560] cpu cpu0: avs=0
  Jan 1 12:04:35 abc kern.err kernel: [ 0.102138] cpu cpu0: rockchip_pvtpll_set_volt: failed to set vdd voltage (925000 1050000 uV): -22
  Jan 1 12:04:35 abc kern.err kernel: [ 0.102314] cpu cpu0: failed to register system monitor

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