linux-kernel - Re: [Y2038] [PATCH v2 2/2] ppdev: add support for compat ioctl

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Message-ID: <9555229.aJQNyGf9cL@wuerfel>
Date:	Fri, 01 Jan 2016 23:09:45 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:	Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>,
	y2038@...ts.linaro.org, gregkh@...uxfoundation.org,
	broonie@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [Y2038] [PATCH v2 2/2] ppdev: add support for compat ioctl

On Friday 01 January 2016 10:34:25 Sudip Mukherjee wrote:
> > Did you happen to check with both 32-bit and 64-bit user space on a
> > 64-bit kernel? This is one of the things that was not working originally
> > but should work now.
> 
> I dont think I can manage 32 bit userspace on 64-bit kernel here. But I
> can definitely check it on a kvm guest.

Just to be sure we are talking about the same thing: you mean running a 64-bit
kernel in a kvm guest with a 32-bit file system, right? Running a 32-bit
kvm guest on a 64-bit host would not be interesting of course.

	Arnd
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