Zach Brown <zab@xxxxxxxxx> writes: > 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. Or perhaps dm-delay. >> 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. Sure. -Jeff -- 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
