一直很揪心的问题

ch_fb

控制台不断显示

1. [  121.137074] hub 2-0:1.0: unable to enumerate USB device on port 5
   
2. [  121.376051] hub 1-0:1.0: unable to enumerate USB device on port 5
   
3. [  121.625069] hub 2-0:1.0: unable to enumerate USB device on port 5
   
4. [  121.865052] hub 1-0:1.0: unable to enumerate USB device on port 5
   
5. [  122.109058] hub 2-0:1.0: unable to enumerate USB device on port 5
   
6. [  122.349055] hub 1-0:1.0: unable to enumerate USB device on port 5
   
7. [  122.597056] hub 2-0:1.0: unable to enumerate USB device on port 5
   
8. [  122.836052] hub 1-0:1.0: unable to enumerate USB device on port 5
   
9. [  123.085073] hub 2-0:1.0: unable to enumerate USB device on port 5
   
10. [  123.325059] hub 1-0:1.0: unable to enumerate USB device on port 5
    
11. [  123.573057] hub 2-0:1.0: unable to enumerate USB device on port 5
    
12. [  123.813059] hub 1-0:1.0: unable to enumerate USB device on port 5
    
13. [  124.061056] hub 2-0:1.0: unable to enumerate USB device on port 5
    
14. [  124.304056] hub 1-0:1.0: unable to enumerate USB device on port 5
    
15. [  124.549059] hub 2-0:1.0: unable to enumerate USB device on port 5
    
16. [  124.789055] hub 1-0:1.0: unable to enumerate USB device on port 5
    
17. [  125.033055] hub 2-0:1.0: unable to enumerate USB device on port 5
    
18. [  125.272057] hub 1-0:1.0: unable to enumerate USB device on port 5
    
19. [  125.521071] hub 2-0:1.0: unable to enumerate USB device on port 5
    
20. [  125.760056] hub 1-0:1.0: unable to enumerate USB device on port 5
    
21. [  126.009057] hub 2-0:1.0: unable to enumerate USB device on port 5
    
22. [  126.249054] hub 1-0:1.0: unable to enumerate USB device on port 5
    
23. [  126.497089] hub 2-0:1.0: unable to enumerate USB device on port 5
    
24. [  126.737068] hub 1-0:1.0: unable to enumerate USB device on port 5
    
25. [  126.985052] hub 2-0:1.0: unable to enumerate USB device on port 5
    
26. [  127.229055] hub 1-0:1.0: unable to enumerate USB device on port 5
    
27. [  127.473057] hub 2-0:1.0: unable to enumerate USB device on port 5
    
28. [  127.717049] hub 1-0:1.0: unable to enumerate USB device on port 5
    
29. [  127.961050] hub 2-0:1.0: unable to enumerate USB device on port 5
    
30. [  128.205054] hub 1-0:1.0: unable to enumerate USB device on port 5
    
31. [  128.448051] hub 2-0:1.0: unable to enumerate USB device on port 5
    
32. [  128.692058] hub 1-0:1.0: unable to enumerate USB device on port 5
    
33. [  128.932062] hub 2-0:1.0: unable to enumerate USB device on port 5
    
34. [  129.176065] hub 1-0:1.0: unable to enumerate USB device on port 5

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以往都是在 /etc/sysctl.conf 加 kernel.printk = 3 4 1 7 ，对其视而不见。这次重装了系统，又翻出来这个问题，想搞明白究竟怎么回事。
有硬伤也没必要这么一直扫吧！ debian 和 ubuntu 都会这样，但 arch 不会，在 kernel.printk = 7 4 1 7 时可见， arch 不会一直这么扫，不知道它是怎样做的。

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我是说我的磁盘怎么老闪，原来还有这招。
/var/log/kern.log 里面全是它的记录！光控制台不显示根本不能解决问题。问题升级了，甲级状态，一周解决不了就换系统！

1. Sep 25 21:51:31 localhost kernel: [  110.132112] hub 2-0:1.0: unable to enumerate USB device on port 5
   
2. Sep 25 21:51:31 localhost kernel: [  110.372078] hub 1-0:1.0: unable to enumerate USB device on port 5
   
3. Sep 25 21:51:31 localhost kernel: [  110.612119] hub 2-0:1.0: unable to enumerate USB device on port 5
   
4. Sep 25 21:51:31 localhost kernel: [  110.852093] hub 1-0:1.0: unable to enumerate USB device on port 5
   
5. Sep 25 21:51:32 localhost kernel: [  111.092115] hub 2-0:1.0: unable to enumerate USB device on port 5
   
6. Sep 25 21:51:32 localhost kernel: [  111.332099] hub 1-0:1.0: unable to enumerate USB device on port 5
   
7. Sep 25 21:51:32 localhost kernel: [  111.572108] hub 2-0:1.0: unable to enumerate USB device on port 5
   
8. Sep 25 21:51:32 localhost kernel: [  111.812092] hub 1-0:1.0: unable to enumerate USB device on port 5
   
9. Sep 25 21:51:32 localhost kernel: [  112.052094] hub 2-0:1.0: unable to enumerate USB device on port 5
   
10. Sep 25 21:51:33 localhost kernel: [  112.292070] hub 1-0:1.0: unable to enumerate USB device on port 5

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ch_fb

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=620848
汗！那 arch 以前（2.6.32）是怎么解决的？

ch_fb

昨晚更新内核到 2.6.32-36 问题解决了， debian 还没进更新源，更据 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=620848#113 手动解决的。
找出需要更新的包，到镜像站的 pool 目录下手动下载然后更新！刚回来又冷开机验证了一下，确实解决了。

什么时候进更新源啊？

d00m3d

有時 udev 版本過舊也有相似問題