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Re: xfstests 224: test aio hole-fill at 4g

To: Rich Johnston <rjohnston@xxxxxxx>
Subject: Re: xfstests 224: test aio hole-fill at 4g
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Fri, 26 Oct 2012 12:52:21 -0500
Cc: xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <508AC5DA.2080502@xxxxxxx>
References: <4B633F9A.8000404@xxxxxxxxxxx> <508AC5DA.2080502@xxxxxxx>
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:16.0) Gecko/20121010 Thunderbird/16.0.1
On 10/26/12 12:18 PM, Rich Johnston wrote:
> On 01/29/2010 02:05 PM, Eric Sandeen wrote:
>> Testcase from Giel de Nijs <giel@xxxxxxxxxxxxxx>
>> on linux-ext4 list, ""Possible ext4 data corruption
>> with large files and async I/O," on 29 Jan 2010
>>
>> ext4 put byte offsets in a block offset u32 container
>> in the endio struct, so 4g wrapped to 0 leading to
>> data corruption when the unwritten extent did not
>> get converted.
>>
>> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxxx>
>>
>> ---
> 
> Hey Eric
> 
> Just going through the list trying to clean it up.  Is this patch still valid 
> or does one of the other hole tests cover this?

There was some question on the list about whether there should be a dedicated 
test program to do this, or an AIO addition to xfs_io - that probably needs 
some thought.  AFAIK xfs_io still doesn't know anything about AIO.

I doubt that this particular AIO testcase got covered anywhere else.

-Eric

> Regards
> --Rich
> 
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