linux-ext4 - Re: mke2fs -O 64bit -E resize=<anything> divides by 0

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Message-ID: <20121112063208.16223.qmail@science.horizon.com>
Date:	12 Nov 2012 01:32:08 -0500
From:	"George Spelvin" <linux@...izon.com>
To:	adilger@...ger.ca, sandeen@...hat.com
Cc:	linux-ext4@...r.kernel.org, linux@...izon.com
Subject: Re: mke2fs -O 64bit -E resize=<anything> divides by 0

> And given that the poor reporter is re-making his whole filesystem just
> because he found out that he can't grow past 16T:
>	"(wow, was *that* a nasty surprise)"
> it's understandable that he's trying to give it a rather large resize=
> value this time around.

Er... I was trying to give a *small* resize= value, actually, given that
the default is documented as 1000x the FS size at creation.  I don't have
a good mental model of what the space reservation entails, but given
*that* kind of default fudge factor, I added a small integer multiple
on top of what I thought would plausibly happen.
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