Re: Linux Sparc FPU register corruption
James Y Knight <jyknight@google.com> writes:
> Attached is a simple reproduction case, not involving the glibc
> functions, which exhibits the same FP register corruption problem I
> see when using the memset routine in glibc's
> sysdeps/sparc/sparc32/sparcv9/memset.S.
>
> For comparison, this test program appears to runs perfectly reliably under Solaris on the same hardware.
Have you tried your test program using a kernel with SLUB enabled
instead of SLAB, as the kernel allocator?
On my machine a kernel with SLAB will produce an error every time and a
SLUB kernel never did, even after running for hours.
I've also found another example of this problem:
https://bugs.debian.org/789013
With a SLAB kernel nettle's "make check" fails but with SLUB "make check
succeeds every time.
-David Mattli
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