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SubjectRe: Is there a way to keep the 2.6 kjournald from writing to idle disks? (to allow spin-downs)
Micha Feigin wrote:
>>My curiosity isn't completely gone, though, so maybe one day I'll try to
>>find out who-is-trying-to-read-what, "find -atime ..." didn't reveal the
>>secret
>>yet.
>
> It might help you find the culprit. There is a laptopmode patch
> for 2.6. If you echo a number n larger then 1 into
> /proc/sys/vm/laptopmode it will dump the first n disk accesses to the
> console (The docs that come with the patch have the complete
> description).

This was true in the first version (for /proc/sys/vm/block_dump, not
laptop_mode), however, this approach was then shot down in favor of a
simple on/off flag.

--Bart
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