Linux-BTRFS Archive on
 help / color / Atom feed
From: "Christian Höppner" <>
To: <>
Subject: False alert: read time tree block corruption
Date: Wed, 04 Dec 2019 11:04:15 +0000
Message-ID: <BYWL23M0PMTD.134Q4QBKEGA96@cryptbreaker> (raw)


I'm writing because the kernel wiki page relating to this error[1] says to
write here first.

I'm (was) running Arch Linux, kernel 5.4.1, btrfs-progs 5.3.1

Yesterday during usage, the root file system remounted read-only. I was
dumb enough to react by rebooting the machine, when I was greeted by the
following error:

[  25.634530] BTRFS critical (device nvme0n1p2): corrupf leaf: block=810145234944...
[  25.634793] BTRFS error (device nvme0n1p2): block=810145234944 read time tree block corruption detected
[  25.634961] BTRFS error (device nvme0n1p2): in __btrfs_free_extent:3080: errno=-5 IO failure
[  25.635042] BTRFS error (device nvme0n1p2): in btrfs_run_delayed_refs:2188: errno=-5 IO failure
[  34.653440] systemd-journald[483]: Failed to torate /var/log/journal/8f7037b10bbd4f25aadd3d19105ef920/system.journal

After booting to live media, I checked SMART, badblocks, `btrfs check
--readonly` and `btrfs scrub`. All came back clean. I conclude that this
is a false positive, and have downgraded the kernel to 5.3.13 as a

How can I provide more information to help?


             reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-04 11:04 Christian Höppner [this message]
2019-12-04 11:32 ` Nikolay Borisov
2019-12-05  2:50   ` Zygo Blaxell
2019-12-05 11:44   ` Christian Höppner

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=BYWL23M0PMTD.134Q4QBKEGA96@cryptbreaker \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-BTRFS Archive on

Archives are clonable:
	git clone --mirror linux-btrfs/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-btrfs linux-btrfs/ \
	public-inbox-index linux-btrfs

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone