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Hello,

> > 2.) The X11 server is stuck in "libpthread" also it is not linked
> > against that library which is *really* suspicious.
>=20
> this I have no explanation for.

A stray -pthread in my host.cf. I'm rebuilding without it now.
I don't quite see how this could trigger it though, when the Xserver
doesn't use any pthread functions - how could we end up in libpthread?

> so this is really 3 bugs:
>=20
> (1) Xserver manipulates signal state in a signal handler (common).
> (2) Xserver is somehow calling libpthread functions (common? sparc64?
>       unclear).
> (3) pthreads are still kinda broken on sparc64 (sparc64).

At least. The call stack looks a bit hosed to me, maybe it's a corrupted
function pointer again like in other parts of xsrc.
In these cases -fno-strict-aliasing cured the problem, but I had that in
host.cf too.

have fun
Michael

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