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Date: Wed, 14 May 2014 09:06:21 -0500
From: Eric Sandeen <sandeen@sandeen.net>
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Subject: Re: xfs_db dont work on blocksize 4096?
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To: weber@zbfmail.de, Xfs <xfs@oss.sgi.com>

On 5/14/14, 7:47 AM, Marko Weber|8000 wrote:
> 
> hello,
> does xfs_db not work on blocksize 4096 ?
> 
> i get this:
> 
> bunka distfiles # xfs_db -r /dev/sda4
> xfs_db: error - read only 0 of 512 bytes
> cache_node_purge: refcount was 1, not zero (node=0x686530)
> xfs_db: cannot read root inode (117)
> cache_node_purge: refcount was 1, not zero (node=0x688810)
> xfs_db: cannot read realtime bitmap inode (117)
> xfs_db: error - read only 0 of 512 bytes
> xfs_db> quit
> 
> any hints, ideas tipps?
> 
> thank you
> 
> marko
> 

What version of xfsprogs?  Works here:


# insmod drivers/scsi/scsi_debug.ko dev_size_mb=32 sector_size=4096
# blockdev --getpbsz --getss /dev/sdd
4096
4096
# mkfs.xfs /dev/sdd
meta-data=/dev/sdd               isize=256    agcount=2, agsize=4096 blks
         =                       sectsz=4096  attr=2, projid32bit=1
         =                       crc=0
data     =                       bsize=4096   blocks=8192, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=0
log      =internal log           bsize=4096   blocks=1605, version=2
         =                       sectsz=4096  sunit=1 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
# xfs_db /dev/sdd
xfs_db> sb 0
xfs_db> p magicnum
magicnum = 0x58465342
xfs_db> 

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