Xen devel - Aug 2006 - How to show deug info via XENPRINTF?

Hi all.

I am trying to debug a kernel that I built, and I hope I could see some debug 
info printing out via XENPRINTF. I use it in the source code of kernel like:

XENPRINTF("nr_pages: %ld shared_info: 0x%lx flags: 0x%lx pt_base: 0x%lx
"
		  "mod_start: 0x%lx mod_len: 0x%lx\n",
		  xen_start_info->nr_pages, xen_start_info->shared_info, 
		  xen_start_info->flags, xen_start_info->pt_base, 
		  xen_start_info->mod_start, xen_start_info->mod_len);

But it doesn''t print anything out when start this kernel as domU. I
think I
must miss something here.

Any ideas about how to do it? Thanks in advance :-)

PS: I am using xen-3.0.2-2

-- 
Best Regards
Yuan, Jue @ http://www.yuanjue.net

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Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Hi all.

I am trying to debug a kernel that I built, and I hope I could see some debug 
info printing out via XENPRINTF. I use it in the source code of kernel like:

XENPRINTF("nr_pages: %ld shared_info: 0x%lx flags: 0x%lx pt_base: 0x%lx
"
		  "mod_start: 0x%lx mod_len: 0x%lx\n",
		  xen_start_info->nr_pages, xen_start_info->shared_info, 
		  xen_start_info->flags, xen_start_info->pt_base, 
		  xen_start_info->mod_start, xen_start_info->mod_len);

But it doesn''t print anything out when start this kernel as domU. I
think I
must miss something here.

Any ideas about how to do it? Thanks in advance :-)

PS: I am using xen-3.0.2-2

-- 
Best Regards
Yuan, Jue @ http://www.yuanjue.net

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Hi all.

I am trying to debug a kernel that I built, and I hope I could see some debug
info printing out via XENPRINTF. I use it in the source code of kernel like:

XENPRINTF("nr_pages: %ld shared_info: 0x%lx flags: 0x%lx pt_base: 0x%lx
"
                  "mod_start: 0x%lx mod_len: 0x%lx\n",
                  xen_start_info->nr_pages, xen_start_info->shared_info,
                  xen_start_info->flags, xen_start_info->pt_base,
                  xen_start_info->mod_start, xen_start_info->mod_len);

But it doesn''t print anything out when start this kernel as domU. I
think I
must miss something here.

Any ideas about how to do it? Thanks in advance :-)

PS: I am using xen-3.0.2-2

-- 
Best Regards
Yuan, Jue @ www.yuanjue.net

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

That is purely a macro used on FreeBSD. It is enabled via a define in
the config file, and you''ll need to enable debugging in xen - assuming
the relevant hypercall still exists.


                -Kip

On Thu, 24 Aug 2006, Yuan, Jue wrote:
> Hi all.
>
> I am trying to debug a kernel that I built, and I hope I could see some
debug
> info printing out via XENPRINTF. I use it in the source code of kernel
like:
>
> XENPRINTF("nr_pages: %ld shared_info: 0x%lx flags: 0x%lx pt_base:
0x%lx "
>                   "mod_start: 0x%lx mod_len: 0x%lx\n",
>                   xen_start_info->nr_pages,
xen_start_info->shared_info,
>                   xen_start_info->flags, xen_start_info->pt_base,
>                   xen_start_info->mod_start,
xen_start_info->mod_len);
>
> But it doesn''t print anything out when start this kernel as domU.
I think I
> must miss something here.
>
> Any ideas about how to do it? Thanks in advance :-)
>
> PS: I am using xen-3.0.2-2
>
> --
> Best Regards
> Yuan, Jue @ www.yuanjue.net
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>
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