[ptxdist] Booting kernel crashes when using OSELAS.Toolchain-2014.12.1 for ARMv5TE

[Stranz Jan-Marc <JM.Stranz@gantner-instruments.com>]

Hello Erwin,

thank you very much for the very useful hint.
I've applied both patches to my kernel source tree and now the kernel is starting!

Best regards
Jan-Marc.



-----Ursprüngliche Nachricht-----
Von: Erwin Rol [mailto:mailinglists@erwinrol.com] 
Gesendet: Dienstag, 25. August 2015 16:41
An: ptxdist@pengutronix.de
Cc: Stranz Jan-Marc <JM.Stranz@gantner-instruments.com>
Betreff: Re: [ptxdist] Booting kernel crashes when using OSELAS.Toolchain-2014.12.1 for ARMv5TE

Does your kernel have the following commits ?

cf74ff32e7d9c0eeb45a1c9127a2f920d066a6dc
ARM: 7668/1: fix memset-related crashes caused by recent GCC (4.7.2) optimizations


90bfa421f2bf589b6fdf76b250adacdaf52acc16
ARM: 7670/1: fix the memset fix


- Erwin

On 25-8-2015 16:01, Juergen Borleis wrote:
> Hi Jan-Marc,
> 
> On Tuesday 25 August 2015 15:37:48 Stranz Jan-Marc wrote:
>> thank you for the hint.
>>
>> But I need some help: where can I check if there any known issues 
>> with specific gcc versions and specific Linux kernel versions.
> 
> By using Google?
> 
>> Concrete: I'm using Linux kernel 3.3.0 (with some hardware specific
>> adaptions) and the OSELAS.Toolchain-2014.12.1 provides gcc 4.9.2.
> 
> First of all you should check with a minimal recent Linux-4.2-rc 
> kernel if it boots at all when it was built with a GCC-4.9.2. Then you 
> could use "git bisect" to find the reason and/or the required patch.
> 
> Regards,
> Juergen
> 

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