* Szabolcs Nagy [off-list ref] [2016-03-06 21:02:08 +0100]:

* Stas Sergeev [off-list ref] [2016-03-01 00:29:03 +0300]:

quoted

The following patches make it possible to use swapcontext()
in a sighandler that works on sigaltstack.

i don't think that's possible, the (obsolete) userspace
*context functions cannot operate on kernel provided
ucontext_t structs, so they are not usable in signal
handlers.

at least not on most target archs.

so i don't understand how the tests can work portably.

i see the test does not use the kernel ucontext_t
and only synchronous context switch is done

sorry for the noise.