linux-kernel - Re: bcachefs: do not run 6.7: upgrade to 6.8 immediately if you have a multi device fs

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Date: Sat, 16 Mar 2024 18:31:58 +0100
From: Martin Steigerwald <martin@...htvoll.de>
To: Kent Overstreet <kent.overstreet@...ux.dev>
Cc: linux-bcachefs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject:
 Re: bcachefs: do not run 6.7: upgrade to 6.8 immediately if you have a multi
 device fs

Martin Steigerwald - 16.03.24, 17:49:52 CET:
> > > Unfortunately I need to do exactly that, as 6.8.1 breaks hibernation
> 
> > > on ThinkPad T14 AMD Gen 1:
> […]
> 
> > run this tree then:
> > 
> > https://evilpiepirate.org/git/bcachefs.git/log/?h=bcachefs-for-v6.7
> 
> Wonderful. Thanks! Compiling this one instead. Shall I report something
> to you once I booted into it? I read you had difficulties getting those
> patches into stable.

It seems that the downgrade succeeded.

First mount:

[   22.565053] bcachefs (dm-5): mounting version 1.4: (unknown version) opts=metadata_checksum=xxhash,data_checksum=xxhash,compression=lz4
[   22.565686] bcachefs (dm-5): recovering from clean shutdown, journal seq 116996
[   22.565717] bcachefs (dm-5): Version downgrade required:

[   22.590487] bcachefs (dm-5): alloc_read... done
[   22.597896] bcachefs (dm-5): stripes_read... done
[   22.597930] bcachefs (dm-5): snapshots_read... done
[   22.651106] bcachefs (dm-5): journal_replay... done
[   22.651667] bcachefs (dm-5): resume_logged_ops... done
[   22.651736] bcachefs (dm-5): going read-write

I wonder whether there was some text supposed to follow
"Version downgrade required:". The line feed was in the output.

Second mount:

[  113.059224] bcachefs (dm-5): mounting version 1.3: rebalance_work opts=metadata_checksum=xxhash,data_checksum=xxhash,compression=lz4
[  113.059259] bcachefs (dm-5): recovering from clean shutdown, journal seq 117013
[  113.083911] bcachefs (dm-5): alloc_read... done
[  113.091268] bcachefs (dm-5): stripes_read... done
[  113.091281] bcachefs (dm-5): snapshots_read... done
[  113.142374] bcachefs (dm-5): journal_replay... done
[  113.142390] bcachefs (dm-5): resume_logged_ops... done
[  113.142406] bcachefs (dm-5): going read-write

Thanks,
-- 
Martin