[Bug 544954] Re: [lucid] floppy causes high cpu iowait usage

Wenzhuo Zhang wenzhuo at zhmail.com
Wed Mar 24 14:10:38 UTC 2010


** Description changed:

  Binary package hint: linux-image
  
- I upgraded my ThinkPad X32 notebook to Lucid beta. The notebook does not
- have floppy drive, but the floppy kernel module causes very high cpu
- iowait usage for about 20 minutes after reboot, while issuing the
- following error messages:
+ I upgraded my ThinkPad X32 notebook to Lucid beta last weekend. The
+ notebook does not have a floppy drive, but the floppy kernel module
+ causes very high cpu iowait usage for about 20 minutes after reboot. At
+ the same time, it keeps issuing error messages as follows:
  
  [ 1123.553851] Buffer I/O error on device fd0, logical block 0
  [ 1136.618649] end_request: I/O error, dev fd0, sector 0
  
  Manually removing(rmmod) and loading(modprobe) the floppy module later
- cannot reproduce the high cpu iowait usage.
+ cannot reproduce the problem.
  
- The workaround is to blacklist the floppy module.
+ One workaround is to blacklist the floppy kernel module.

** Description changed:

  Binary package hint: linux-image
  
  I upgraded my ThinkPad X32 notebook to Lucid beta last weekend. The
  notebook does not have a floppy drive, but the floppy kernel module
  causes very high cpu iowait usage for about 20 minutes after reboot. At
  the same time, it keeps issuing error messages as follows:
  
  [ 1123.553851] Buffer I/O error on device fd0, logical block 0
  [ 1136.618649] end_request: I/O error, dev fd0, sector 0
  
+ Reproducible in 2.6.32-16-generic and 2.6.32-17-generic.
+ 
  Manually removing(rmmod) and loading(modprobe) the floppy module later
  cannot reproduce the problem.
  
  One workaround is to blacklist the floppy kernel module.

-- 
[lucid] floppy causes high cpu iowait usage
https://bugs.launchpad.net/bugs/544954
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.




More information about the kernel-bugs mailing list