On Fri, Nov 01, 2013 at 10:35:56AM +0800, Zheng Liu wrote:
> Hi Andreas,
>
> On Thu, Oct 31, 2013 at 09:35:25PM +0000, Dilger, Andreas wrote:
> > I tried to add in a "truncate -s $SIZE_2 $TMPFILE", but it complains that
> > it
> > isn't able to truncate the file in /tmp to 2TB:
> >
> > truncating `/tmp/e2fsprogs-tmp.OGxb09' at 2199023255552 bytes: File too
> > large
> >
> > Testing manually, it seems I'm not allowed to create a file in tmpfs larger
> > than 256GB. How large does this file need to be for this test to be valid?
> >
> > Anyone else seen these problems, or do I need to dig in further?
>
> Yes, I also can see these problems.
Hmm.... it works for me. Run while r_64bit_big_expand is running:
% ls -l tmp
...
24896 -rw-r--r--. 1 tytso tytso 2199023255552 Oct 31 23:17 e2fsprogs-tmp.pkOcCc
...
% df /tmp
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 3216420 26008 3190412 1% /tmp
What version of the kernel are you running? I am using 3.12-rc5 plus
the ext4 dev tree, so I'm using a pretty recent kernel.
Maybe this is a relatively new feature of tmpfs? If so, I should
probably change the test so that it's a bit more portable on people
using older kernels.
- Ted
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