On Fri, Mar 15, 2024 at 09:57:34AM +0100, Martin Steigerwald wrote: > Hi Kent, hi. > > Kent Overstreet - 15.03.24, 05:41:09 CET: > > there's a bug in 6.7 with filesystems that are mid upgrade and then get > > downgraded not getting marked in the superblock as downgraded, and this > > translates to a really horrific bug in splitbrain detection when the old > > version isn't updating member sequence nmubers and you go back to the > > new version - this results in every device being kicked out of the fs. > > I take it that single device BCacheFS filesystems can be upgraded just fine? > > I can also recreate and repopulate once I upgraded to 6.8. Still waiting a > bit. No need to recreate and repopulate - you just don't want to be going back to 6.7 from a newer version.