[Bug 607560] Re: jbd2 writing block every 5 - 10 seconds, preventing disk spin-down and making noise

[Matthew Holtz]

I understand that ext4 does journaling and that the journal must be
written to disk from time to time.  What escapes me is why the disk
must be written every few seconds __when no disk access is needed at
all__.

That is the issue I struggle with on my netbook -- most of the time I
need no disk access when browsing the internet, yet my disk accesses
every 5 to 10 seconds like clockwork.

That is why this is a bug.

-- 
jbd2 writing block every 5 - 10 seconds, preventing disk spin-down and making noise
https://bugs.launchpad.net/bugs/607560
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