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Re: finest and rhel/centos 7.1

To: Charles Weber <chaweber@xxxxxxxxx>, xfs@xxxxxxxxxxx
Subject: Re: finest and rhel/centos 7.1
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Tue, 07 Apr 2015 10:34:05 -0500
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <014A8EAA-D469-49D9-9A80-5C4CC455C74E@xxxxxxxxx>
References: <014A8EAA-D469-49D9-9A80-5C4CC455C74E@xxxxxxxxx>
On 4/7/15 10:30 AM, Charles Weber wrote:
> Hi everyone, I am building a large storage server and noticed to my
> delight that mkfs.xfs in 7.1 now supports finobts=1. But I get mount
> errors saying below. Since the FS in question mount fine so long as I
> don’t specify finobts=1 while formatting, should I assume the rest of
> 7.1 is not yet ready for it? Or is there some option I missed?

That was a bit of an oversight.

finobt will be available kernelside eventually, but userspace
jumped the gun.

> thanks, Chuck *xfs*progs-3.2.1-6.el7.x86_64 
> kernel-3.10.0-229.1.2.el7.x86_64 [75881.037768] SELinux: initialized
> (dev dm-7, type xfs), uses xattr [75908.498994] XFS (dm-7):
> Superblock has unknown read-only compatible features (0x1) enabled. 
> [75908.499035] XFS (dm-7): Attempted to mount read-only compatible
> filesystem read-write. Filesystem can only be safely mounted read
> only. [75908.499058] XFS (dm-7): SB validate failed with error 22.
> [root@NIAIRPGL1 share]# modinfo xfs filename:
> /lib/modules/3.10.0-229.1.2.el7.x86_64/kernel/fs/xfs/xfs.ko license:
> GPL description:    SGI XFS with ACLs, security attributes, large
> block/inode numbers, no debug enabled author:         Silicon
> Graphics, Inc. alias:          fs-xfs rhelversion:    7.1 srcversion:
> 3E3940432E169BEE955EDE9 depends:        libcrc32c intree:         Y 
> vermagic:       3.10.0-229.1.2.el7.x86_64 SMP mod_unload modversions
>  signer:         CentOS Linux kernel signing key sig_key:
> 34:B5:BC:A2:B7:06:D8:2E:72:A5:BE:3E:E4:09:BE:C7:19:5E:A5:08 
> sig_hashalgo:   sha256
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