On Wed, Mar 14, 2018 at 09:46:07AM +0200, Nikolay Borisov wrote: > > > On 14.03.2018 05:10, Tycho Andersen wrote: > > Hi all, > > > > I'm getting the WARN below. I think (?) what I'm doing when I get it > > is that I'm unmounting a subvolume while it's being synced (concurrent > > uses of the subvolume, at least, happy to look into it further if the > > stack trace is not so useful). Anyway, I can fairly reliably reproduce > > this on 4.16-rc4. > > > > Thoughts? > > Yeah, you've mounted the filesystem with flushoncommit. THe easiest > thing would be to remount with that option ommitted i.e the default > behavior. This is a well-known issue, unfortunately fixing it is a bit > hairy and deadlock prone against fs freeze.
Excellent, thanks! Tycho
