On Fri, Jun 19, 2015 at 09:34:30AM +1000, Dave Chinner wrote: > On Thu, Jun 18, 2015 at 11:53:37AM -0400, Theodore Ts'o wrote: > > I've been trying to figure out why generic/299 has occasionally been > > stalling forever. After taking a closer look, it appears the problem > > is that the fio process is stalling in userspace. Looking at the ps > > listing, the fio process hasn't run in over six hours, and using > > attaching strace to the fio process, it's stalled in a FUTUEX_WAIT. > > > > Has anyone else seen this? I'm using fio 2.2.6, and I have a feeling > > that I started seeing this when I started using a newer version of > > fio. So I'm going to try roll back to an older version of fio and see > > if that causes the problem to go away. > > I'm running on fio 2.1.3 at the moment and I havne't seen any > problems like this for months. Keep in mind that fio does tend to > break in strange ways fairly regularly, so I'd suggest an > upgrade/downgrade of fio as your first move. Yep, I've rolled back to fio-2.1.13-77-g0f9940a, which is what I had been using previously for a long time, and the problem with generic/299 seems to have gone away. I had hoped that the days when new releases of fio wouldn't intrdouce random new bugs was a temporary aberration, but obviously that was a bit over-optimistic. - Ted -- 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
