On Tue, Aug 26, 2014 at 12:05:11PM -0400, Jeff Moyer wrote: > Benjamin LaHaise <bcrl@xxxxxxxxx> writes: > > > Does someone already have a simple test case we can add to the libaio test > > suite to verify this behaviour? > > I can't reproduce this problem using a loop device, which is what the > libaio test suite uses. Even when using real hardware, you have to have > disks that are slow enough in order for this to trigger reliably (or > at all). I wonder if you could use something like dm suspend to abuse indefinite latencies. > I could write a more targeted test within xfstests, but I don't think > that's strictly necessary (it would just make it more clear what the > expectations are, and maybe bump the hit rate percentage up). I think it'd be worth it (he says, not commiting *his* time). It would have been nice if a targeted test helped Dave raise the alarm immediately rather than gnaw away at his brain with inconsistent mostly unrelated failures for months. - z -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
