[Bug 544954] Re: [lucid] floppy causes high cpu iowait usage
Wenzhuo Zhang
wenzhuo at zhmail.com
Wed Mar 24 00:04:14 UTC 2010
** Summary changed:
- floppy causes high cpu iowait usage
+ [lucid] floppy causes high cpu iowait usage
** 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 initial booting, while issuing
the following error messages:
[ 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.
- High iowait usage is gone after blacklisting the floppy module.
+ The workaround is to blacklist the floppy module.
--
[lucid] floppy causes high cpu iowait usage
https://bugs.launchpad.net/bugs/544954
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