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Date:   Thu, 28 May 2020 21:26:15 -0700
From:   Marc MERLIN <marc@merlins.org>
To:     linux-btrfs@vger.kernel.org
Subject: Is SATA ALPM safe with btrfs now (no more corruption)?
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TLP allows SATA power management: SATA_LINKPWR_ON_BAT=max_performance

There are some old posts that talk about corruption if you enable this
with btrfs:
https://wiki.archlinux.org/index.php/TLP#Btrfs
says not to enable it

https://forum.manjaro.org/t/btrfs-corruption-with-tlp/25158

https://github.com/linrunner/TLP/issues/128
says it may not be safe

https://www.reddit.com/r/archlinux/comments/5tm5uh/btrfs_and_tlp/
also talks about corruption

https://www.reddit.com/r/archlinux/comments/4f5xvh/saving_power_is_the_btrfs_dataloss_warning_still/
say it's probably ok

My feeling is that it's probably ok nowadays with a 5.6+ kernel.

Would anyone disagree?

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
 
Home page: http://marc.merlins.org/