[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
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