Re: [Xen-devel] Re: Where to get FreeBSD port for Xen

[Hidetoshi Shimokawa <simokawa@xxxxxxxxxxx>]

I have experianced strange lockups sometimes.
In that case, 'xm list' shows no state for freebsd.
(usually it is blocked)

Name              Id  Mem(MB)  CPU  State  Time(s)  Console
Domain-0           0       59    0  r----    990.1        
freebsd.sample     2       64    0  -----    547.6    9602

I'd like to analyze this problem using debugger.
I found gdbserver binary in your web site but it seems old and
to require old libraries. Can I get the gdbserver source?

Thanks,

/\ Hidetoshi Shimokawa
\/  simokawa@xxxxxxxxxxx


At Mon, 24 Jan 2005 13:29:38 -0800 (PST),
Kip Macy wrote:
> 
> Thanks for patch and the heads up on the successful boot.
> 
> I'll apply the patch and update the posted tarball and kernel tonight.
> 
> 
> 
>                                       -Kip
> 
> On Mon, 24 Jan 2005, Hidetoshi Shimokawa wrote:
> 
> > Thank you very much for your work, Kip.
> >
> > I successfully booted xenofreebsd from your source.
> > The following patch(obtained from NetBSD) seems to
> > fix the scheduling problem.
> >
> > /\ Hidetoshi Shimokawa
> > \/  simokawa@xxxxxxxxxxx
> >
> > diff -u -r /home/simokawa/xen/i386-xeno/i386-xeno/clock.c 
> > i386-xeno/i386-xeno/clock.c
> > --- /home/simokawa/xen/i386-xeno/i386-xeno/clock.c  Mon Jan 24 10:36:19 2005
> > +++ i386-xeno/i386-xeno/clock.c     Mon Jan 24 16:58:31 2005
> > @@ -502,3 +502,10 @@
> >     /* our adjusted time offset in microseconds */
> >     return edx;
> >  }
> > +
> > +void
> > +idle_block(void)
> > +{
> > +   if (HYPERVISOR_set_timer_op(processed_system_time + NS_PER_TICK) == 0)
> > +           HYPERVISOR_block();
> > +}
> > diff -u -r /home/simokawa/xen/i386-xeno/i386-xeno/machdep.c 
> > i386-xeno/i386-xeno/machdep.c
> > --- /home/simokawa/xen/i386-xeno/i386-xeno/machdep.c        Mon Jan 24 
> > 10:36:19 2005
> > +++ i386-xeno/i386-xeno/machdep.c   Mon Jan 24 17:50:25 2005
> > @@ -140,6 +140,7 @@
> >  #include <machine/hypervisor.h>
> >  #include <machine/xenfunc.h>
> >  #include <machine/xenvar.h>
> > +#include <machine/xen_intr.h>
> >
> >  void Xhypervisor_callback(void);
> >  void failsafe_callback(void);
> > @@ -903,8 +904,13 @@
> >      */
> >     __asm __volatile("sti; hlt");
> >  #endif
> > +#if 0
> >     enable_intr();
> >     HYPERVISOR_yield();
> > +#else
> > +   idle_block();
> > +   enable_intr();
> > +#endif
> >  }
> >
> >  /*
> > diff -u -r /home/simokawa/xen/i386-xeno/include/xen_intr.h 
> > i386-xeno/include/xen_intr.h
> > --- /home/simokawa/xen/i386-xeno/include/xen_intr.h Mon Jan 24 10:36:19 2005
> > +++ i386-xeno/include/xen_intr.h    Mon Jan 24 17:48:55 2005
> > @@ -44,6 +44,7 @@
> >  extern void irq_suspend(void);
> >  extern void irq_resume(void);
> >
> > +extern void idle_block(void);
> >
> >
> >  #endif /* _XEN_INTR_H_ */
> >
> >
> > At Sun, 23 Jan 2005 18:25:25 -0800 (PST),
> > Kip Macy wrote:
> > >
> > > For those interested I've uploaded a source tarball and copied in
> > > updated directions.
> > >
> > >
> > >                                   -Kip
> > >
> > >
> > >
> > > On Sun, 23 Jan 2005, Derrik Pates wrote:
> > >
> > > > Kip Macy wrote:
> > > > > It looks like apache had gone out to lunch. I just restarted it and it
> > > > > is accessible again. If you wait a day I'll have 5.3 up. 5.2.1 is what
> > > > > is there right now.
> > > >
> > > > Kip:
> > > >
> > > > Any luck with that FreeBSD 5.3 kernel? Our network engineer wants to set
> > > > up a Xen box for internal use with Debian and FreeBSD on it, and I'm
> > > > hoping to get FreeBSD 5.3 on there. Also, were you able to figure out
> > > > the blocking stuff in the scheduling code?
> > > >
> > > > --
> > > > Derrik Pates
> > > > demon@xxxxxxxxxxxxx
> > > >
> > >
> > >
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> >


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