The first sync wrote all the 'dirty' buffers to disc.
The second sync writes the new 'dirty' buffers (with changed
disc usage bitmaps).
The third sync was just for good measure.
clint
On Sat, 28 Apr 2001, Alex Holden wrote:
> On Sat, 28 Apr 2001, Bill Pechter wrote:
> > sync <return>
> > sync <return>
> > sync <return>
> > and push the halt switch down
> > generated enough sync's and time delays for even the older Dec
> > controllers to flush all the buffers and then halt.
>
> Why was it necessary to run sync three times in a row rather than just
> running it once and waiting for a few seconds?
>
> --
> ------- Alex Holden -------
> http://www.linuxhacker.org/
> http://www.robogeeks.org/
>
>
>
Received on Sun Apr 29 2001 - 18:00:23 BST