Re: XFS crashed twice, once in, next in 2.6.17, reproducable

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On Mon, Jun 19, 2006 at 12:44:58AM -0700, Avuton Olrich wrote:
> ..
> Hello, when trying to recursively delete a directory (same directory
> twice) from my 500gb hard drive I get a problem. It crashed first in
>, then I upgraded to try to get rid of the issue. This one is
> from 2.6.17:

How reproducible is it?  Is it reproducible even after xfs_repair?

If so, can you try Mandy's patch below, to see if it is addressing
the root cause of your problem?  If problems persist, a reproducible
test case would be wonderful, if one can be found..



Fix nused counter.  It's currently getting set to -1 rather than getting
decremented by 1.  Since nused never reaches 0, the "if (!free->hdr.nused)"
check in xfs_dir2_leafn_remove() fails every time and xfs_dir2_shrink_inode()
doesn't get called when it should.  This causes extra blocks to be left on
an empty directory and the directory in unable to be converted back to
inline extent mode.

Signed-off-by: Mandy Kirkconnell <[email protected]>
Signed-off-by: Nathan Scott <[email protected]>

--- a/fs/xfs/xfs_dir2_node.c	2006-06-20 16:00:45.000000000 +1000
+++ b/fs/xfs/xfs_dir2_node.c	2006-06-20 16:00:45.000000000 +1000
@@ -972,7 +972,7 @@ xfs_dir2_leafn_remove(
 			 * One less used entry in the free table.
-			free->hdr.nused = cpu_to_be32(-1);
+			be32_add(&free->hdr.nused, -1);
 			xfs_dir2_free_log_header(tp, fbp);
 			 * If this was the last entry in the table, we can
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