linux-kernel - Re: Building older mips kernels with different versions of binutils; possible patch for 3.2 and 3.4

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Date:   Sun, 08 Oct 2017 20:54:20 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     Guenter Roeck <linux@...ck-us.net>,
        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 Sun, 2017-10-08 at 12:01 -0700, Guenter Roeck wrote:
> 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.

Thanks.  I did notice these failures but didn't think they were related
to the few MIPS patches in the 3.2 queue.

Ben.

-- 
Ben Hutchings
compatible: Gracefully accepts erroneous data from any source


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