David Daney <ddaney.cavm@xxxxxxxxx> writes:
> On 02/25/2015 01:31 PM, Måns Rullgård wrote:
>> Paul Martin <paul.martin@xxxxxxxxxxxxxxx> writes:
>>
>>> Some change between 3.19 and 4.0-rc1 has broken the FPE such that some
>>> code running on an Octeon II is subtly not working.
>>>
>
> Can you say where your userspace comes from, so we can try to
> reproduce the issue?
>
>>> eg.
>>>
>>> $ echo "1 2" | gawk '{ print $1 }'
>>> 1 2
>>>
>>> which should output (and does output on 3.19)
>>>
>>> $ echo "1 2" | gawk '{ print $1 }'
>>> 1
>>>
>>> I'm going to try bisecting this over the next few days.
>>
>> Are you running a 32-bit userland? If so, enabling
>> MIPS_O32_FP64_SUPPORT should fix this.
>
> ??
>
> 32-bit userland (Debian for instance) typically shouldn't need special
> "Exprimental" config options enabled.
>
> If we can identify the offending patch, we should revert it.
FYI, a fix (MIPS: asm: elf: Set O32 default FPU flags) has been posted
to linux-mips.
--
Måns Rullgård
mans@xxxxxxxxx
