On 2/6/21 7:49 PM, Rolf Fokkens wrote: > Hi all, > > Apparently some bcache users are hit by the message in the subject, see > https://bugzilla.redhat.com/show_bug.cgi?id=1922485 > > I personally cannot reproduce this, but if the provided info is correct, > a certain kernel upgrade will break existing bcache setups. Is this > really true? > > If so, this is a breaking change, which is very harmful. > > I hope some of you have suggestions for the people who apparently are > impacted by this. This is a regression and fixed in 5.11-rc6 by commit 0df28cad06eb ("bcache: only check feature sets when sb->version >= BCACHE_SB_VERSION_CDEV_WITH_FEATURES"). Also the fix has been in stable kernels already last week. The fix should go into distribution very soon IMHO. Thanks. Coly Li
