[Bug 544954] Re: [lucid] floppy causes high cpu iowait usage
Wenzhuo Zhang
wenzhuo at zhmail.com
Wed Mar 24 07:27:32 UTC 2010
** Tags added: lucid
** Tags removed: kernel-series-unknown
** 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:
+ iowait usage for about 20 minutes after reboot, 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.
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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