Re: [2.6.31-rc4] uninitialised memory during read_sb...

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On Wed, Jul 29, 2009 at 10:42:09AM +0100, Daniel J Blueman wrote:
> When mounting a btrfs filesystem on my server running 2.6.31-rc4,
> kmemcheck spotted some believed-uninitialised memory [1] 128 bytes
> into the inode structure access from BTRFS_I [2,3].
> 
> The filesystem was created with btrfstools-0.18 under 2.6.30 - perhaps
> an issue relating to the forward rolling disk format changes - or
> simply relating to the inode size? Should
> be reproducible.

Ok, this is coming from the RB_CLEAR_NODE() call, which reads the
current value of the parent pointer.  I'll fix it up, thanks for sending
the bug report along.

-chris
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