Re: Bug#945763: gcc-9 ftbfs on mipsel

Control: severity -1 important

On 01.12.19 06:12, YunQiang Su wrote:
> YunQiang Su <[email protected]> 于2019年11月30日周六 上午11:19写道：
>>
>> YunQiang Su <[email protected]> 于2019年11月29日周五 下午2:21写道：
>>>
>>> 在 2019-11-29五的 07:00 +0100，Matthias Klose写道：
>>>> On 28.11.19 18:09, YunQiang Su wrote:
>>>>> Matthias Klose <[email protected]> 于2019年11月28日周四 下午5:51写道：
>>>>>> On 28.11.19 10:44, Matthias Klose wrote:
>>>>>>> Package: src:gcc-9
>>>>>>> Version: 9.2.1-20
>>>>>>> Severity: serious
>>>>>>> Tags: sid bullseye
>>>>>>>
>>>>>>> gcc-9 ftbfs on mipsel with a bootstrap comparison failure, most
>>>>>>> likely triggered
>>>>>>> by the LTO build enabled in -20.
>>>>>>>
>>>>>>> bootstrap comparison failure!
>>>>>>> libbacktrace/elf.o differs
>>>>>>> libbacktrace/.libs/elf.o differs
>>>>>>> make[4]: *** [Makefile:24878: compare] Error 1
>>>>>>
>>>>>> Please could you have a look?
>>>>>
>>>>> sure. I will look at it tomorrow
>>>>
>>>> hmm, that also fails in gcc-7, which didn't see any code changes from
>>>> 7.5.0-1 to
>>>> 7.5.0-2.
>>>
>>> Maybe, it meets a buggy machine?
>>
>> due to the Loongson's patch to add sync?
> 
> I am sure that this is due to that change.
> So, please rollback that changes for now. I will try to dig out why.

now reverted in binutils.