> On Sat, 12 Dec 1998, Jamie Lokier wrote:
>
> >+ :"ebx", "ecx", "esi", "edi", "cc", "memory"); \
> ^^^^^^^^^^^^^^
>
> What is "cc" and why we need to declare "memory" clobbered after using
> __switch_to()?
The scheduler is running on the current thread's kernel stack but the
current pointer is being changed in switch_to(). So any values gcc might
have stored on the stack will now have to be refetched from memory
as schedule() might otherwise continue with stale values.
Ralf
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