libthr: thr_create(2): no kernel stack?

[Marcel Moolenaar]

On Sat, May 31, 2003 at 11:48:15PM -0400, Mike Makonnen wrote:
> On Sat, 31 May 2003 00:22:59 -0700
> > 
> > I'm porting libthr to ia64 and reached a point where I can actually
> > do initial testing. I immediately hit upon a snafu in thr_create(2).
> > The second bcopy (ie sys/kern/kern_thr.c:159) is panicing because
> > the new thread (td0) does not have a frame (ie td_frame == NULL).
> > Creating a frame is obviously the thing to do, but there's no kernel
> > stack created for the new thread AFAICT. Without kernel thread.
> > cpu_set_upcall() will also fail if we ever reach that point.
> > 
> > Am I missing something here?
> 
> I just took a look at this and it _did_ look funny, but it seems to work on i386
> so I did a little more digging and it seems that the stack frame is allocated in
> the uma thread initialization routine thread_init(), which calls
> cpu_thread_setup().  
> This is currently undefined for ia64: ia64/ia64/vm_machdep.c: line 110

Ah, ok. Thanks. I got distracted by an ia64 specific hack in
kern_thread.c. I just committed the removal of that hack. I too
was in the process of figuring out why it worked on i386. You
beat me to it ;-)

Thanks. I'll commit an implementation shorty,

-- 
 Marcel Moolenaar	  USPA: A-39004		 marcel at xcllnt.net