Note: the OP has since replied back to me via private-email, probably accidentally selecting "reply" instead of "reply-all". So that other folks on the list know that they don't need to chase this down: > I have no backlight in early boot so I can't read console output. > > Since posting this I learned that I was mislead by my git bisect. The commit > on torvalds tree before this patch was merged > (79e06c4c4950be2abd8ca5d2428a8c915aa62c24) doesn't boot. What I > thought was the same issue in this patch was in fact only the result of the > backlight not turning on (the config option was different for my hardware in > 5.15 where this patch was based.) I'm still hunting the real issue, > but it likely > isn't the filesystem. > > Thank you very much for your effort. I'm very sorry I sent you on a wild goose > chase. Cheers, - Ted