From: Duncan <1i5t5.duncan@cox.net>
To: linux-btrfs@vger.kernel.org
Subject: Re: Btrfs balance bug
Date: Thu, 3 Oct 2013 11:45:31 +0000 (UTC) [thread overview]
Message-ID: <pan$a0456$a7c238f0$83bcabb4$dcdfc7c5@cox.net> (raw)
In-Reply-To: CADef55pBMJ-oeOLy9Z3AeP7iRyFqm6fNfuS8BNm0qbDk876SwQ@mail.gmail.com
Slava Barinov posted on Thu, 03 Oct 2013 08:50:06 +0400 as excerpted:
> Good day.
>
> I've got a failure with btrfs balance. In fact I started btrfs balance
> /btr and got a total filesystem freeze. After I tried applying balance
> pause or balance cancel the following crashdump appeared and btrfs
> tool freezed.
> Reboot changed nothing: I've got totally the same crashdump.
> So I mounted filesystem with skip_balance option and tried to cancel
> balance. It worked. Then I performed a btrfsck on my fs and it found
> nothing suspicious. So I believe it is just a balance bug. I suppose
> that could be because of lack of free space on device but should not
> filesystem reject balancing instead of crashing?
>
> [ 117.078876] btrfs: continuing balance
> ------------[ cut here ]------------
> [ 152.195487] kernel BUG at fs/btrfs/relocation.c:1055!
> [ 152.198432] invalid opcode: 0000 [#1] SMP
> # btrfs --version Btrfs v0.20-rc1-358-g194aa4a
>
> Kernel is just 3.11.3-gentoo. -ray is my machine config and several
> custom modules which are not loaded now.
Greetings fellow gentooer! =:^)
IIRC balances bugging out with invalid opcode 0000, but working properly
on a fresh boot, were a known issue on 3.11. I know I had the problem
here.
I /believe/ that issue was fixed by a patch that went in between 3.12-rc1
and 3.12-rc2, and I /think/ the same patch is queued for stable, but due
to a miscommunication with Greg KH where he was waiting on the btrfs
folks who were waiting on him, the btrfs patches for stable didn't make
it into 3.11.3. However, it /should/ be in the /next/ set 3.11-stable
release, as they uncrossed their signals and GKH said he'd pull them this
time. (You can see the thread for the crossed signals just a couple days
ago I think, on this list. Of course the thread for that patch and the
reports of problems without it will be back a bit further...)
--
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:[~2013-10-03 11:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-03 4:50 Btrfs balance bug Slava Barinov
2013-10-03 11:45 ` Duncan [this message]
2013-10-03 11:56 ` Holger Hoffstaette
2013-10-03 13:48 ` Duncan
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