On Sun, May 06, 2007 at 09:40:14PM -0700, Andrew Morton wrote:
> On Mon, 7 May 2007 00:26:26 +0200 Frank van Maarseveen <[email protected]> wrote:
>
> > Steps to reproduce:
> > Create a 3G partition, say /dev/vol1/project
> > mke2fs -j -b 4096 /dev/vol1/project 22812
> > mount it
> > ext2online /dev/vol1/project said:
> >
> > | ext2online v1.1.18 - 2001/03/18 for EXT2FS 0.5b
> > | ext2online: ext2_ioctl: No space left on device
> > |
> > | ext2online: unable to resize /dev/mapper/vol1-project
> >
> > kernel said:
> >
> > | JBD: ext2online wants too many credits (721 > 256)
There's a threshold for the problem depending on the initial
size. This one fails:
mke2fs -j -b 4096 /dev/<3GB-blockdev> 32768
(mount + ext2online or resize2fs)
kernel: JBD: resize2fs wants too many credits (1034 > 1024)
Add one block to the initial mke2fs (32768+1 == 32769) and the
problem is gone.
Without the -b 4096 there's another resize problem
mke2fs -j /dev/loop1 2048
mount /dev/loop1 /1
resize2fs /dev/loop1
says:
resize2fs 1.40-WIP (14-Nov-2006)
Filesystem at /dev/loop1 is mounted on /1; on-line resizing required
old desc_blocks = 1, new_desc_blocks = 12
Performing an on-line resize of /dev/loop1 to 3072000 (1k) blocks.
resize2fs: Invalid argument While trying to add group #256
and the kernel says:
May 7 15:36:08 lokka EXT3-fs warning (device loop1): verify_reserved_gdb:
May 7 15:36:08 lokka reserved GDT 10 missing grp 1 (8202)
May 7 15:36:08 lokka
After that, the filesystem has been resized to 2GB. I recall a 2G
(?) limit for ext3 resizing with 1k blocksize but trying the above with
4096 1k blocks seems to work. fsck says it's ok all the time.
--
Frank
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