[OE-core] kernel miscompilation with gcc 4.8 for ARMv5

[Bruce Ashfield]

On Wed, Jul 10, 2013 at 9:34 AM, Enrico Scholz
<enrico.scholz at sigma-chemnitz.de> wrote:
> Enrico Scholz
> <enrico.scholz-wttK6gPy29v+Hn7q9Vec/7NAH6kLmebB at public.gmane.org>
> writes:
>
>> is it expected that recent gcc 4.8[1] compiles the kernel correctly?
>> Kernels for ARMv5 platforms (PXA168 -> 3.4.52, MX28 -> 3.8.13) fail here
>> 100% at early boot with
>
> Applying two upstream kernel commits
> 455bd4c430b0c0a361f38e8658a0d6cb469942b5 (ARM: 7668/1: fix
> memset-related crashes caused by recent GCC (4.7.2) optimizations) and
> 418df63adac56841ef6b0f1fcf435bc64d4ed177 (ARM: 7670/1: fix the memset
> fix) seem to fix the problem for me.

Correct. Those are the same commits you'll see on linux-yocto-3.8, we've been
soaking them for a while. I was waiting for LTSI and -stable to pick
up the changes
before updating linux-yocto-3.4, but that hasn't happened yet.

If you are using linux-yocto-3.4 and can confirm that it boots for you
with those patches,
I can stage them in my tree while I wait for them to loop around.

Cheers,

Bruce

>
>
>
> Enrico
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> Openembedded-core at lists.openembedded.org
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