Linux-kernel mailing list archive 2000-29,: Re: Ext2fs file sizes

# Re: Ext2fs file sizes

Billy Harvey (Billy.Harvey@thrillseeker.net)
Mon, 17 Jul 2000 20:19:16 -0400 (EDT)

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Mike A. Harris writes:
> Short, no ext2 has never had a 2G filesize limitation.

Mike,

On a related, but different, note:

Using a 2.4.0-test2-ac2 I created a 2G file with dd which I then
mounted via loopback. Making an ext2fs on this caused my system to
run out of memory repeatedly (and hang) until I doubled the swap,
giving 144M real plus 144M swap.

Requiring such a large amount of memory to create a filesystem seems
unnecessary. Is there a particular reason the mkfs.ext2 program has
to write everything into memory before dumping it to disk? (I'm
guessing this is not really a kernel problem/limitation).

I'm using version
"mke2fs 1.18, 11-Nov-1999 for EXT2 FS 0.5b, 95/08/09".

Billy

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