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From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>,
	y2038@lists.linaro.org, gregkh@linuxfoundation.org,
	broonie@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [Y2038] [PATCH v2 2/2] ppdev: add support for compat ioctl
Date: Sat, 2 Jan 2016 11:59:29 +0530	[thread overview]
Message-ID: <20160102062929.GA10432@sudip-pc> (raw)
In-Reply-To: <9555229.aJQNyGf9cL@wuerfel>

On Fri, Jan 01, 2016 at 11:09:45PM +0100, Arnd Bergmann wrote:
> 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.

The kvm (actually qemu, started from virt-manager with -enable-kvm) that
I just configured shows the following:

lscpu shows:

Architecture:          i686
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                1
On-line CPU(s) list:   0
Thread(s) per core:    1
Core(s) per socket:    1
Socket(s):             1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 6
Stepping:              3
CPU MHz:               2993.200
BogoMIPS:              5986.40
Virtualization:        VT-x
Hypervisor vendor:     KVM
Virtualization type:   full
L1d cache:             32K
L1i cache:             32K
L2 cache:              4096K

uname -i shows:
i686


Will it be ok to test in this one?

regards
sudip

  reply	other threads:[~2016-01-02  6:29 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-17  9:58 [PATCH v2 0/2] Convert ppdev to y2038 safe Bamvor Jian Zhang
2015-12-17  9:58 ` [PATCH v2 1/2] ppdev: convert " Bamvor Jian Zhang
2015-12-17  9:58 ` [PATCH v2 2/2] ppdev: add support for compat ioctl Bamvor Jian Zhang
2015-12-17 23:12   ` Arnd Bergmann
2015-12-30 11:16     ` Sudip Mukherjee
2015-12-30 13:24       ` Bamvor Jian Zhang
2015-12-30 13:48         ` Sudip Mukherjee
2015-12-30 13:51         ` [Y2038] " Arnd Bergmann
2015-12-30 14:20           ` Bamvor Jian Zhang
2015-12-31  9:43             ` Sudip Mukherjee
2015-12-31 14:12               ` Arnd Bergmann
2016-01-01  5:04                 ` Sudip Mukherjee
2016-01-01 22:09                   ` Arnd Bergmann
2016-01-02  6:29                     ` Sudip Mukherjee [this message]
2016-01-02 22:40                       ` Arnd Bergmann
2016-01-04 13:14                         ` Sudip Mukherjee
2016-01-04 13:26                           ` Arnd Bergmann
2016-01-06 12:56                           ` Bamvor Jian Zhang
2016-01-07 15:12                             ` Arnd Bergmann

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