On Wed, Jul 17, 2013 at 11:38:50PM +0200, Jan Kara wrote: > > It was running this.. https://github.com/kernelslacker/io-tests/blob/master/setup.sh > > in a loop. After about 6 hours, that fell out. It made it all the way through > > every test a few times, which is odd, as the test should be fairly deterministic. > > Ah, I wasn't capturing the fsx seed. I'll do that on the next run. > So inode 12 was likely the file used by fsx. OK. Looking at the script > link, fsx is run as: > /usr/local/bin/fsx -N 250000 -S0 foo & > so the seed is always 0. So it is a deterministic test and there must be > some race with writeback or something that is rarely triggered. Drat. S0 is special. it means 'use timeofday as seed' Dave -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
