From: Duncan <1i5t5.duncan@cox.net>
To: linux-btrfs@vger.kernel.org
Subject: Re: Btrfs warnings in kernel 4.13.5
Date: Fri, 13 Oct 2017 11:02:07 +0000 (UTC) [thread overview]
Message-ID: <pan$2aa3b$47885ead$d44bbe7e$37d6c337@cox.net> (raw)
In-Reply-To: CAC+fKQXPGpwuhVz7oNLzPLd0ydo+kiqG1vpcWvx+-DZ+2jL6Bg@mail.gmail.com
Juan Orti Alcaine posted on Fri, 13 Oct 2017 10:40:20 +0200 as excerpted:
> Hi,
>
> I've upgraded my system to Fedora 27 and now I see many btrfs warnings,
> although the system seems to be working fine. Is this something I should
> worry about?
> # uname -a Linux xenon 4.13.5-300.fc27.x86_64 #1 SMP Thu Oct 5 16:57:11
> UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
>
> # btrfs --version btrfs-progs v4.13.2
> [ 337.813416] ------------[ cut here ]------------
> [ 337.813453] WARNING: CPU: 5 PID: 459 at fs/btrfs/ctree.h:1559
> btrfs_update_device+0x1be/0x1d0 [btrfs]
> [ 337.814256] ------------[ cut here ]------------
> [ 337.814281] WARNING: CPU: 5 PID: 459 at fs/btrfs/ctree.h:1559
> btrfs_update_device+0x1be/0x1d0 [btrfs]
> [ 337.822161] ------------[ cut here ]------------
> [ 337.822185] WARNING: CPU: 5 PID: 459 at fs/btrfs/ctree.h:1559
> btrfs_update_device+0x1be/0x1d0 [btrfs]
> [ 337.822868] ------------[ cut here ]------------
> [ 337.822890] WARNING: CPU: 5 PID: 459 at fs/btrfs/ctree.h:1559
> btrfs_update_device+0x1be/0x1d0 [btrfs]
Those warnings aren't anything to be /too/ worried about. They are
triggered when a btrfs device size isn't a multiple of the btrfs
sectorsize (currently 4 KiB on amd64 aka x86_64). You can manually
shrink your btrfs devices the fraction to an exact 4 KiB multiple, or
wait a bit, and a new release of btrfs-tools should have a command to do
it for you.
--
Duncan - List replies preferred. No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master." Richard Stallman
next prev parent reply other threads:[~2017-10-13 11:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-13 8:40 Btrfs warnings in kernel 4.13.5 Juan Orti Alcaine
2017-10-13 8:57 ` Juan Orti Alcaine
2017-10-13 11:02 ` Duncan [this message]
2017-10-13 12:06 ` Juan Orti Alcaine
2017-10-13 18:15 ` Chris Murphy
2017-10-13 21:57 ` Juan Orti Alcaine
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