Bug#960674: golang-go: "fatal error: gc_trigger underflow" on mipsel

On Tue, May 19, 2020 at 11:43:30AM +0800, Shengjing Zhu wrote:
> 
> FTR, after giving back golang-1.14 mipsel several times, it's finally
> built, by a longson builder.
> So I guess it only occurs on octeon. Since the porterbox eller is also
> octeon, it also can't build any go program.

On eller golang-1.14 fails to build both in sid and buster chroots.

golang-1.11 also fails to build in a buster chroot with floating point
test errors.

golang-1.14 gets unbroken by GOMIPS=softfloat.

The only kernel configuration change on eller in the buster point 
release is CONFIG_MIPS_O32_FP64_SUPPORT=y, everything observed would
make sense if the problem is that golang-1.11 and golang-1.14 are
not compatible with CONFIG_MIPS_O32_FP64_SUPPORT.

> Shengjing Zhu

cu
Adrian