j.chitte wrote:
> One remaining headache is files being written by the SBC don't seem to be
> updated when read back by the same. This is critical for the control
> software.
>
> I write out some ADC values to a file under htdocs then it gets read back in
> by a control loop. When I'm running on nfs these files always give the same
> content when read.
>
> If I look at the file from the nfs server end it updates correctly so on disk
> it is good. From the arm end it's meta-data get updated correctly but the
> content always gives what is was when mounted. Either from using 'cat' or
> when read programatically.
>
> Can anyone make sense of that.
That's another nfs headache I remember :) As I remember the nfs client
is caching the read data on you and not asking for the updated file from
the server. Again, unsure how I fixed it but this might point you in
the right direction...
--
Jason Stahls
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