On Thu, May 31, 2012 at 10:59:34PM -0500, Andrew McNabb wrote:
> On Thu, May 31, 2012 at 09:56:14PM -0600, Phillip Hellewell wrote:
> > 
> > Has anyone else run into this and did you resolve it by switching to
> > data=writeback or by using a different filesystem like JFS or XFS?
> 
> I run into this--or something similar--once every month or two, but I
> haven't figured out what's causing it.  I'll have to try your
> suggestion, but the problem is rare enough that it will be hard to tell
> whether it makes a difference.  Thanks for sharing your experience.

Hi Andrew,

You could try this to reproduce it:
1. Run "dd if=/dev/zero of=/tmp/test.dat" in a console window.
2. Run iotop in another console window.
3. Edit a small text file and try to save it.

If #3 takes longer than a few seconds, and #2 shows 99.99% for journald
or jbd2, then you are probably experiencing the same thing I was.

Phillip

-- 
Phillip Hellewell <sshock AT sshock.net>
--------------------
BYU Unix Users Group 
http://uug.byu.edu/ 

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