[BULK] Re: [PATCH] xfstests 311: test fsync with dm flakey V2

[Dave Chinner]

On Fri, Apr 26, 2013 at 03:31:01PM -0400, Josef Bacik wrote:
> On Thu, Apr 25, 2013 at 08:12:14PM -0600, Dave Chinner wrote:
> > > Ok so I think I'll just make this test do all the iterations of the fsync tester
> > > with and without --nolockfs, since without --nolockfs I'm still seeing problems,
> > > does that sound reasonable?
> > 
> > Sounds like a fine plan to me ;)
> > 
> 
> Btw its test 19 O_DIRECT that gives me a 0 length file, the buffered case is
> fine.  The test just does a randomly sized sub-block sized write over and over
> again for a random number of times and fsync()'s in there randomly.  The number
> is 3072 because that's the largest inline extent we can have in btrfs, I added
> it specifically to test our inline extent logging.  Thanks,

Interesting - it only runs fsync every 8 iterations of the loop. Can
you check that it is running enough loops to execute a fsync?

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com