On Tue, Apr 10, 2012 at 01:39:14PM -0600, Jim Schutt wrote:
> Hi,
>
> I hit this BUG today.
>
> I'm running 3.3.1 merged with the ceph and btrfs bits for 3.4,
> i.e. 3.3.1 +
> commit bc3f116fec194 "Btrfs: update the checks for mixed block groups with
> big metadata blocks"
> commit c666601a935b9 "rbd: move snap_rwsem to the device, rename to
> header_rwsem"
>
> The btrfs filesystem in question is backing a Ceph OSD under
> a heavy write load.
>
> Here's the bug:
>
> [510342.517157] ------------[ cut here ]------------
> [510342.521855] kernel BUG at fs/btrfs/extent_io.c:3982!
Could you please confirm that line number is this BUG_ON()
BUG_ON(extent_buffer_under_io(eb));
Josef has a theory on this one, but I want to make sure we're chasing
the right thing.
-chris
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