Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1236201

BTRFS: more space available than free

Show all headers | View raw

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Hello,

currently, I suffer of a weird problem with a btrfs filesystem:
   ~> uname -r
   4.0.9
   ~> stat -f /
     File: "/"
       ID: a446833a80ceeb6a Namelen: 255     Type: btrfs
   Block size: 4096       Fundamental block size: 4096
   Blocks: Total: 128472     Free: 41964      Available: 42981
   Inodes: Total: 0          Free: 0

As you can see, f_bavail is slightly bigger than f_bfree. As I
understand the values, f_bavail should be never bigger than f_bfree.

Currently that breaks check_disk from nagios.

How can that happening? I found a thread about some try to make f_bavail
more accurate in 2014 but nothing about f_bfree.

What I didn't try until now, is, if that problem also happened with the
most recent kernel version but this will be my next step.

Please forgive that I don't read lkml regularly. Please keep me in Cc
for this reason.

Regards
   Klaus
- -- 
Klaus Ethgen                              http://www.ethgen.ch/
pub  4096R/4E20AF1C 2011-05-16   Klaus Ethgen <Klaus@Ethgen.de>
Fingerprint: 85D4 CA42 952C 949B 1753  62B3 79D0 B06F 4E20 AF1C
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=3Wky
-----END PGP SIGNATURE-----
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

BTRFS: more space available than free Klaus Ethgen <Klaus+lkml@ethgen.de> - 2015-09-30 13:40 +0200

csiph-web