Eric Sandeen wrote:
So, in the course of other things, I found a way to reproduce this
error. And, just for mailing-list-posterity, it seems to be fixed,
upstream, with:
commit 0bf7e8379ce7e0159a2a6bd3d937f2f6ada79799
Author: Jose R. Santos <jrs@xxxxxxxxxx>
Date: Tue Jun 3 14:07:29 2008 -0400
ext4: Fix uninit block group initialization with FLEX_BG
With FLEX_BG block bitmaps, inode bitmaps and inode tables _MAY_ be
allocated outside the group. So, when initializing an uninitialized
block bitmap, we need to check the location of this blocks before
setting the corresponding bits in the block bitmap of the newly
initialized group. Also return the right number of free blocks when
counting the available free blocks in uninit group.
Tested-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jose R. Santos <jrs@xxxxxxxxxx>
Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
which made it to the 2.6.26 kernels.
the description sounds innocuous but in my case it was actually
corrupting memory ...
-Eric
Trever
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