4.1-rc1 fails with O3 optimization

[leo kirotawa]

With this .config you sent kernel does not boot.

On Tue, Apr 28, 2015 at 1:46 PM, leo kirotawa <kirotawa at gmail.com> wrote:
> that .config you sent is for 4.0-rc2, is that right?
>
>
> here is the diff after a make oldconfig [1]
>
> [1] http://pastebin.com/4Lfs2it0
>
> On Tue, Apr 28, 2015 at 12:35 PM, Andev <debiandev at gmail.com> wrote:
>> On Tue, Apr 28, 2015 at 9:03 AM, leo kirotawa <kirotawa at gmail.com> wrote:
>>> I could boot it using qemu. So what's the point?
>>
>> Could you try the attached config and see if it boots?
>>
>>>
>>> On Tue, Apr 28, 2015 at 2:41 AM, Andev <debiandev at gmail.com> wrote:
>>>>
>>>> On Mon, Apr 27, 2015 at 9:00 PM, Bobby Powers <bobbypowers at gmail.com>
>>>> wrote:
>>>> > Hello,
>>>> >
>>>> > Andev wrote:
>>>> >> I usually compile my kernel with an unsupported O3 option(why not? :).
>>>> >
>>>> > Because there have been publications that show on major benchmarks,
>>>> > the effects of -O3 are indistinguishable from noise:
>>>> > http://people.cs.umass.edu/~emery/pubs/Stabilizer-UMass-CS-TR2011-43.pdf
>>>> >
>>>> > Have you noticed that -O3 provides any performance benefits over -O2?
>>>> >
>>>>
>>>> Look here: http://www.spinics.net/lists/kernel/msg1962561.html
>>>>
>>>> Btw, this will help uncover problems in either gcc or the kernel for
>>>> sure. So no harm in trying!
>>>>
>>>> --
>>>> Andev
>>>>
>>>> _______________________________________________
>>>> Kernelnewbies mailing list
>>>> Kernelnewbies at kernelnewbies.org
>>>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>>>
>>>
>>>
>>>
>>> --
>>>
>>> ----------------------------------------------
>>> Leônidas S. Barbosa (Kirotawa)
>>> blog: corecode.wordpress.com
>>
>>
>>
>> --
>> Andev
>
>
>
> --
>
> ----------------------------------------------
> Leônidas S. Barbosa (Kirotawa)
> blog: corecode.wordpress.com



-- 

----------------------------------------------
Leônidas S. Barbosa (Kirotawa)
blog: corecode.wordpress.com