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xen-ia64-devel
RE: [Xen-ia64-devel] [Q] About xc.domain_destroy_hook
Hi Kan:
When I implemented NVRAM, I found there were many difference shutdown
ways for HVM domain. So I added hook on each flow.
Maybe Xend code merged some shutdown paths. You can try to remove it to
see if NVRAM still works. If fine, I think it is removable. Thx.
Good good study,day day up ! ^_^
-Wing(zhang xin)
OTC,Intel Corporation
>-----Original Message-----
>From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
>[mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On
>Behalf Of Masaki Kanno
>Sent: 2008?1?31? 9:19
>To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>Subject: [Xen-ia64-devel] [Q] About xc.domain_destroy_hook
>
>Hi,
>
>I have a question.
>
>XendDomainInfo.py:
> def shutdown(self, reason):
> """Shutdown a domain by signalling this via
>xenstored."""
> log.debug('XendDomainInfo.shutdown(%s)', reason)
><<snip>>
> # HVM domain shuts itself down only if it has PV drivers
> if self.info.is_hvm():
> hvm_pvdrv = xc.hvm_get_param(self.domid,
>HVM_PARAM_CALLBACK_IRQ)
> if not hvm_pvdrv:
> code = REVERSE_DOMAIN_SHUTDOWN_REASONS[reason]
> here! --> xc.domain_destroy_hook(self.domid)
> log.info("HVM save:remote shutdown dom %d!",
>self.domid)
> xc.domain_shutdown(self.domid, code)
>
>[Q] The line does not need, does it?
>
>
>When I tested xm shutdown command for an HVM domain, I saw the
>following error message in xend-debug.log.
>
> Nvram save successful!
> ERROR Internal error: Save to nvram fail!
> (9 = Bad file descriptor)
>
>Also same message was seen in xm reboot command.
>
> Nvram save successful!
> ERROR Internal error: Save to nvram fail!
> (9 = Bad file descriptor)
>
>I think that xc.domain_destroy_hook() is called twice.
>
>Best regards,
> Kan
>
>
>
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