From: yang.shi@linaro.org (Shi, Yang)
To: linux-arm-kernel@lists.infradead.org
Subject: Run armv7 32 bit userspace on aarch64
Date: Fri, 09 Oct 2015 15:32:25 -0700 [thread overview]
Message-ID: <56184079.1040905@linaro.org> (raw)
In-Reply-To: <20151008111248.GE16807@arm.com>
On 10/8/2015 4:12 AM, Will Deacon wrote:
> On Wed, Oct 07, 2015 at 03:46:57PM -0700, Shi, Yang wrote:
>> I'm trying to run armv7 little endian userspace on qemu aarch64 with 4.1.x
>> kernel. I was told by someone such usecase is valid and I have CONFIG_COMPAT
>> enabled in my kernel.
>>
>> But, I ran into the below error. It looks the userspace application is
>> trying to write a readonly page. I got the similar failure on arm vfp with
>> Linaro images (4.1 kernel) too.
>>
>> Did anyone have tried it recently?
>
> -rc4 seems to be working fine with Debian Jessie armhf on my Juno boards.
>
> Do you have a good way of reproducing this with a mainline kernel?
It seems a qemu's bug. I can get both ubuntu and openembedded userspace
bootup on my LS2085 board with 4.1 kernel.
Thanks,
Yang
>
> Will
>
next prev parent reply other threads:[~2015-10-09 22:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-07 22:46 Run armv7 32 bit userspace on aarch64 Shi, Yang
2015-10-08 11:12 ` Will Deacon
2015-10-09 22:32 ` Shi, Yang [this message]
2015-10-10 0:28 ` Shi, Yang
2015-10-10 21:25 ` Arnd Bergmann
2015-10-12 17:26 ` Shi, Yang
2015-10-12 17:38 ` Shi, Yang
2015-10-12 17:50 ` Will Deacon
2015-10-12 18:41 ` Shi, Yang
2015-10-13 14:18 ` Will Deacon
2015-10-13 16:45 ` Shi, Yang
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