linux-kernel - Re: tmpfs sizing broken in 4.4-rc*

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Message-ID: <20151206183231.GA21661@two.firstfloor.org>
Date:	Sun, 6 Dec 2015 19:32:31 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	hughd@...gle.com, viro@...iv.linux.org.uk,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: tmpfs sizing broken in 4.4-rc*

On Sun, Dec 06, 2015 at 07:16:55PM +0100, Andi Kleen wrote:
> 
> Hi,
> 
> It seems on 4.4-rc2 something is wrong how tmpfs is sized by default.
> 
> On a 4GB system with /tmp as tmpfs I only have an 1MB sized /tmp now. Which
> breaks a lot of stuff, including the scripts to install new kernels.
> 
> When I remount it manually with a larger size things works again.
> 
> I haven't tried to bisect or debug it, but I'm reasonably sure the
> problem wasn't there with 4.3.

Never mind. I did some more experiments and tmp seems to be back
to the expected size now after some experiments/reboots. Must have been some
fluke or a rogue script.

-Andi

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