Devuan bug report logs - #589
This version introduce btrfs free cache incompatibility

Package: linux-image-4.9.0-16-686-pae; Maintainer for linux-image-4.9.0-16-686-pae is (unknown);

Reported by: Klaus Ethgen <Klaus@ethgen.de>

Date: Sat, 3 Jul 2021 21:33:01 UTC

Severity: critical

Found in version 4.9.272-1

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Report forwarded to devuan-bugs@lists.dyne.org, devuan-dev@lists.dyne.org:
bug#589; Package linux-image-4.9.0-16-686-pae. (Sat, 03 Jul 2021 21:33:02 GMT) (full text, mbox, link).


Acknowledgement sent to Klaus Ethgen <Klaus@ethgen.de>:
New bug report received and forwarded. Copy sent to devuan-dev@lists.dyne.org. (Sat, 03 Jul 2021 21:33:05 GMT) (full text, mbox, link).


Message #5 received at submit@bugs.devuan.org (full text, mbox, reply):

From: Klaus Ethgen <Klaus@ethgen.de>
To: Devuan Bug Tracking System <submit@bugs.devuan.org>
Subject: This version introduce btrfs free cache incompatibility
Date: Sat, 3 Jul 2021 22:21:42 +0100
[Message part 1 (text/plain, inline)]
Package: linux-image-4.9.0-16-686-pae
Version: 4.9.272-1
Severity: critical

This release introduce introduce an incompatibility in btrfs free space
cache which leads to an filesystem corruption!

The solution is simple but not obvious: Do a `mount -o
remount,clear_cache,space_cache /filesystem` as early as possible after
boot into the new kernel for every btrfs filesystem.

Please add a release note and a warning for the admin.

-- System Information:
Distributor ID:	Devuan
Description:	Devuan GNU/Linux 4 (chimaera)
Release:	4
Codename:	n/a
Architecture: x86_64

Kernel: Linux 5.10.21 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_FIRMWARE_WORKAROUND, TAINT_OOT_MODULE
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
-- 
Klaus Ethgen                                       http://www.ethgen.ch/
pub  4096R/4E20AF1C 2011-05-16            Klaus Ethgen <Klaus@Ethgen.ch>
Fingerprint: 85D4 CA42 952C 949B 1753  62B3 79D0 B06F 4E20 AF1C
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Last modified: Fri Sep 30 08:44:09 2022;