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Re: determining superblock version?

To: Eric Sandeen <sandeen@xxxxxxxxxxx>
Subject: Re: determining superblock version?
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Wed, 8 Jun 2016 14:37:05 +0200
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <ded753a1-8bf2-2071-da8a-ec6939846ab0@xxxxxxxxxxx>
Organization: Intellique
References: <20160607125127.6dd23aef@xxxxxxxxxxxxxxxxxxxx> <ded753a1-8bf2-2071-da8a-ec6939846ab0@xxxxxxxxxxx> <ded753a1-8bf2-2071-da8a-ec6939846ab0@xxxxxxxxxxx>
Le Tue, 7 Jun 2016 12:12:21 -0500
Eric Sandeen <sandeen@xxxxxxxxxxx> Ãcrivait:

> However, -n ftype=1 may still be enabled, and older kernels may have
> an issue with that as well.
> 

Indeed, I've made some tests:


mkfs.xfs -f -m crc=0, -n ftype=1 testxfs 

3.14 kernel: success

3.13 (ubuntu 14.04): success

3.12 : success

3.10 and lower: failure


mkfs.xfs -f -m crc=0 -n ftype=0 testxfs

3.2 (ubuntu 12.04, Debian oldstable): success

2.6.32 : failure

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