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List:       linux-fsdevel
Subject:    Re: bcachefs: do not run 6.7: upgrade to 6.8 immediately if you have a multi
From:       Martin Steigerwald <martin () lichtvoll ! de>
Date:       2024-03-15 8:57:34
Message-ID: 12416320.O9o76ZdvQC () lichtvoll ! de
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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.

Best.
-- 
Martin



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