GC buckets in 2.067

[Iain Buclaw via Digitalmars-d]

On 1 December 2015 at 09:46, Iain Buclaw <ibuclaw at gdcproject.org> wrote:

> When running the unittest program for druntime.
>
> ---
> Program received signal SIGSEGV, Segmentation fault.
> __memset_avx2 () at ../sysdeps/x86_64/multiarch/memset-avx2.S:101
>
> backtrace:
> #0  __memset_avx2 () at ../sysdeps/x86_64/multiarch/memset-avx2.S:101
> #1  0x00000000004d45a0 in gc.gc.GC.malloc(ulong, uint, ulong*,
> const(TypeInfo)) (this=..., size=8, bits=0, alloc_size=0x7fffffffd428,
> ti=0x714050 <TypeInfo_PS2rt3aaA4Impl.init$>) at
> ../../../../dev/libphobos/libd
> runtime/gc/gc.d:459
> #2  0x00000000004c5948 in gc_qalloc (sz=8, ba=0, ti=0x714050
> <TypeInfo_PS2rt3aaA4Impl.init$>) at
> ../../../../dev/libphobos/libdruntime/gc/proxy.d:196
> #3  0x00000000004450de in core.memory.GC.qalloc(ulong, uint,
> const(TypeInfo)) (sz=8, ba=0, ti=0x714050 <TypeInfo_PS2rt3aaA4Impl.init$>)
> at ../../../../dev/libphobos/libdruntime/core/memory.d:368
> #4  0x0000000000420e31 in _d_newitemT (_ti=0x714050
> <TypeInfo_PS2rt3aaA4Impl.init$>) at
> ../../../../dev/libphobos/libdruntime/rt/lifetime.d:1096
> #5  0x0000000000411f6c in _aaGetX (aa=0x7ffff7ed2090, keyti=0x7191a0
> <ClassInfo for core.thread.Thread>, valuesize=8, pkey=0x7fffffffd598) at
> ../../../../dev/libphobos/libdruntime/rt/aaA.d:172
>

DMD dropped calling this function in favour for _aaGetY().

Maybe I'm chasing a dead end, but maybe, *maybe* something changed and
_aaGetX was not updated parallel?

Iain.
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