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Re: xfs_db -c frag -r /dev/hda1 - Segmentation fault

To: Nathan Scott <nathans@xxxxxxx>
Subject: Re: xfs_db -c frag -r /dev/hda1 - Segmentation fault
From: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Date: Sun, 23 Oct 2005 19:40:19 -0400 (EDT)
Cc: linux-xfs@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, debian-user@xxxxxxxxxxxxxxxx
In-reply-to: <20051024085451.C5863161@xxxxxxxxxxxxxxxxxxxxxxxx>
References: <4080C826.F4C53CD@xxxxxxxxxxxxxxxx> <Pine.LNX.4.64.0510230736490.30489@p34> <20051024085451.C5863161@xxxxxxxxxxxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
Thanks, I will give this a try.


On Mon, 24 Oct 2005, Nathan Scott wrote:

On Sun, Oct 23, 2005 at 07:39:34AM -0400, Justin Piszcz wrote:
p34:~# xfs_db -c frag -r /dev/hda1
Segmentation fault
p34:~# xfs_db -c frag -r /dev/hde1
Segmentation fault
p34:~# xfs_db -c frag -r /dev/hdk1
Segmentation fault
p34:~#

Debian Etch, 2.6.13.4, stopped working a while ago, either before newer
debian packages or a newer kernel, does anyone who uses Debian+XFS have
this problem as well?

I see it too - this looks like an endian issue in xfs_db, this patch
should fix it (Works For Me).

cheers.

--
Nathan


Index: xfsprogs/db/frag.c
===================================================================
--- xfsprogs.orig/db/frag.c
+++ xfsprogs/db/frag.c
@@ -294,7 +294,7 @@ process_exinode(
        xfs_bmbt_rec_32_t       *rp;

        rp = (xfs_bmbt_rec_32_t *)XFS_DFORK_PTR(dip, whichfork);
-       process_bmbt_reclist(rp, XFS_DFORK_NEXTENTS(dip, whichfork), extmapp);
+       process_bmbt_reclist(rp, XFS_DFORK_NEXTENTS_HOST(dip, whichfork), 
extmapp);
}

static void
@@ -305,7 +305,7 @@ process_fork(
        extmap_t        *extmap;
        int             nex;

-       nex = XFS_DFORK_NEXTENTS(dip, whichfork);
+       nex = XFS_DFORK_NEXTENTS_HOST(dip, whichfork);
        if (!nex)
                return;
        extmap = extmap_alloc(nex);




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