Re: (Hardware?) problem with denormal values on mipsel
On Wed, 27 May 2015, James Cowgill wrote:
> > > Commit 2d83fea786d7 in 4.1-rc1 ('MIPS: Correct FP ISA requirements')
> > > fixed the underlying sqrt.s emulation bug.
> > >
> > > It would be good if the 4.1-rc1 patch or at least the 'case fsqrt_op'
> > > part (which is the fix for this bug) can be applied to a jessie stable
> > > kernel and then installed on the buildds. This should fix the original
> > > problem of eso-midas failing to build on mipsel.
> >
> > What's the actual problem here, how can I help?
>
> I just thought I would let you know since it was your patch which was
> going to be applied somewhere.
>
> The bug is that Loongson machines relied on the kernel emulating sqrt.s
> for them (in certain cases) but between 3.16 and 4.1 it didn't and was
> causing things to SIGILL.
Ah, OK then. I'm glad you found my change useful.
Maciej
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