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Date:   Sun, 8 Oct 2017 12:01:04 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Ben Hutchings <ben@...adent.org.uk>,
        stable <stable@...r.kernel.org>,
        Linux MIPS Mailing List <linux-mips@...ux-mips.org>,
        Li Zefan <lizefan@...wei.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Building older mips kernels with different versions of binutils;
 possible patch for 3.2 and 3.4

On 10/08/2017 11:49 AM, Guenter Roeck wrote:
> On 10/08/2017 11:12 AM, Ben Hutchings wrote:
>> On Sun, 2016-05-15 at 19:56 -0700, Guenter Roeck wrote:
>> [...]
>>> For 3.4 and 3.2 kernels to build with binutils v2.24, it would be necessary to
>>> apply patch c02263063362 ("MIPS: Refactor 'clear_page' and 'copy_page' functions").
>>> It applies cleanly to 3.4, but has a Makefile conflict in 3.2. It might
>>> make sense to apply this patch to both releases. Would this be possible ?
>>> This way, we would have at least one toolchain which can build all 3.2+ kernels.
>>
>> I'm finally queueing this up for 3.2.
>>
>> Ben.
>>
> 
> mipsel images in 3.2.y-queue are now crashing for me. Should I have a look ?
> 
Turns out the culprit is qemu. I had switched from qemu 2.9 to qemu 2.10.
Something has changed in qemu that causes a qemu boot failure with 3.2 mipsel
(but not in more recent kernels). I'll switch back to qemu 2.9 for the affected
builds.

Guenter

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