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Re: Difference between mips64el builders?



On 2025-05-15 23:30, Preuße, Hilmar wrote:
> On 15.05.2025 15:12, Preuße, Hilmar wrote:
> 
> Hello,
> 
> > What is the difference between these builders and the other ones? The
> > issue appears since 2.87, b/c since this version I run the test suite at
> > the end of the build.
> > 
> 
> https://db.debian.org/machines.cgi tells me that these are "Quad Core
> Loongson 3A4000", meanwhile the others are "Quad Core Loongson 3A3000". Not
> sure if that plays a role.
 
Loongson 3A4000 CPU swapped the sNaN and qNaN representation compared to 
the original MIPS ABI. I guess a[i] contains a qNaN, which is 
interpreted as a sNaN on the 3A4000, causing the FPU exception.

I have Cc:ed the porters so that can help you to find a solution to this 
issue.

Regards
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                     http://aurel32.net

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