Date: Sat, 30 Dec 2006 04:39:39 -0800 (PST) From: "R. B. Riddick" <arne_woerner@yahoo.com> To: Ivan Voras <ivoras@fer.hr>, freebsd-geom@FreeBSD.org Subject: Re: graid3 device gives "Invalid argument" when requested to read>=128kb Message-ID: <36644.58831.qm@web30303.mail.mud.yahoo.com> In-Reply-To: <45965441.6010002@fer.hr>
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--- Ivan Voras <ivoras@fer.hr> wrote:
> No, probably not. The whole thing was my very first attempt at doing
> anything with GEOM (ggcomp - it still exists somewhere), which wasn't
> very usable :) "Normal" file system operations worked, though I think
> there were problems even here with 16 KB sectors.
>
Sector size seems to be not the reason (at least with gnop and dd on R6.1):
neo# gnop create -S 16384 md0
neo# dd if=/dev/md0.nop of=/dev/null
dd: /dev/md0.nop: Invalid argument
0+0 records in
0+0 records out
0 bytes transferred in 0.000155 secs (0 bytes/sec)
neo# dd if=/dev/md0.nop of=/dev/null bs=16k
1024+0 records in
1024+0 records out
16777216 bytes transferred in 0.398660 secs (42084027 bytes/sec)
Just UFS seems to have a problem:
neo# newfs /dev/md0.nop
/dev/md0.nop: 16.0MB (32768 sectors) block size 16384, fragment size 16384
using 4 cylinder groups of 4.02MB, 257 blks, 128 inodes.
newfs: can't read old UFS1 superblock: read error from block device: Invalid
argument
-Arne
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