Re: [PATCH 3/4] MIPS: Fix ISA I/II FP signal context offsets

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On Tue, 1 Nov 2016, Paul Burton wrote:

> BTW, do you have a feel for whether there's a good r2k/r3k platform (ideal 
> would be some software emulator if any are good enough) that we could hook up 
> to our continuous integration system? That would help us to catch any 
> regressions like this in future before they hit mainline.

 I know about no such platform I'm afraid.

 QEMU does not have the R2k/R3k exception/MMU/cache model and implementing 
that would be a considerable effort I see no volunteers for.  I haven't 
heard of any other simulator which might be closer to implementing that 
model.

 As to using real hardware -- I might be the closest myself to be capable 
of doing some automated testing as I have an R3k machine in my home lab 
wired for remote control.  It could track Ralf's `mips-for-linux-next' 
branch and watch out for regressions, by trying to build and boot kernels 
automatically on a regular basis; maybe doing some further validation 
even, such as running GCC or glibc regression testing.  But while the 
target is ready I'm still missing the host-side setup, which I haven't 
completed.  I don't think there's any other hardware readily available 
which could be hooked somewhere.

 So for the time being I think we need to continue relying on people 
spotting issues by hand.  I think we've been doing pretty good overall.

 Thanks for your review.

  Maciej




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