[xubuntu-users] Unexpected hard drive trashing

Yorvyk yorvik.ubunto at googlemail.com
Sun Oct 21 10:43:26 UTC 2012

On 20/10/12 22:43, Vincent Trouilliez wrote:
> Hi there,
> I was using XUbuntu 12.04, now just upgraded to XUbuntu 12.10, first
> via network update out of convenience, but noticed some problems and
>  regressions, so I re-installed it, this time using a physical CD-ROM
> and erasing the System partition, but preserving my Home partition.
> Unfortunately this did not improve a thing, so I am now posting
> here....
> One problem per post so here is one: hard drive trashing.
> 1) during boot it's a long and uninterrupted hard drive symphony : is
>  there some file/app caching/pre-read going on.. that I could
> disable, by any chance ?
> 2) once the desktop is loaded/ready, soon after I sometimes noticed a
>  single and long drive trashing coming out of nowhere, nothing
> related to my activity on the computer at least. Has anyone noticed
> it ? I seem to remember 12.04 did some background file indexing that
> I had to disable, but forgot what it was exactly and how I disabled
> it... anyone could remind me ?
> 3) The weirdest case is this third one though : launch the "Sudoku"
> game that comes pre-installed with XUbuntu. Now grab the window bar
> with the mouse and move around the window : so long as the window is
> in motion, the hard drive is going nuts !
> 4) I installed Gnome's system monitor (why not). In normal
> circumstances, you would get only a limited hard drive activity when
> you start it for the first time, and then it would run from RAM so
> would start instantly without any drive activity. But here I am
> having a weird behaviour : I get noticeable hard drive trashing
> wheneever I CLOSE it ! I can start it 20 times in a row and it would
> yield to zero drive activiy while starting, which is expected, but
> sure enough the 20 times that I will close it, it will cause a good
> bit a hard drive trashing.  I noticed something just as weird in some
> recent release of (vanilla) Ubuntu, about Rhythmbox: whenever I
> operated RB's built-in volume control slider, I would get massive
> hard drive trashing so long as the cursor of the volume control was
> moving. Drive would stop instantly as soon as I stopped moving the
> cursor, then resume again as soon as move the cursor again..
> completely weird.  Thankfully this problem went away with XUbuntu
> 12.04, and still absent from 12.10.  May it stay that way !
> Any clues about the above ?
No swap partition.

Faulty drive or bad blocks?

Have a look at /var/log/kern.log or run 'tail -f /var/log/kern.log' in a
terminal to see what messages are coming up while this happens.

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