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From: chandan <chandan@linux.vnet.ibm.com>
To: Eric Sandeen <sandeen@redhat.com>, Eric Sandeen <sandeen@sandeen.net>
Cc: linux-btrfs@vger.kernel.org, xfs@oss.sgi.com, sekharan@linux.vnet.ibm.com
Subject: Re: [PATCH] xfstests: generic/255: Execute only if blocksize <= 4096
Date: Tue, 27 Aug 2013 17:46:07 +0530
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On Monday, August 26, 2013 09:29:31 AM Eric Sandeen wrote:
> 
> Just as a sanity check, does it also fail on xfs for 64k block sizes on ppc64?
> 

Yes, it does fail as shown below:

generic/255      - output mismatch (see /home/chandan/xfstests/results//generic/255.out.bad)
    --- tests/generic/255.out   2013-08-27 06:59:08.241344176 -0400
    +++ /home/chandan/xfstests/results//generic/255.out.bad     2013-08-27 07:01:45.311352161 -0400
    @@ -2,306 +2,202 @@
        1. into a hole
     daa100df6e6711906b61c9ab5aa16032
        2. into allocated space
    -0: [0..7]: extent
    -1: [8..23]: hole
    -2: [24..39]: extent
    +0: [0..127]: extent
     ...
     (Run 'diff -u tests/generic/255.out /home/chandan/xfstests/results//generic/255.out.bad' to see the entire diff)

In this instance, the test basically ends up punching a hole within a block
and hence fails.

- chandan