Re: [Xen-devel] Vt-d not working with 3.4.1

["Mr. Teo En Ming (Zhang Enming)" <enming.teo@xxxxxxxxxxxxxxx>]

Dear Pasi,

I went into arch/x86/boot:-

[root@fedora11-x86-64-host ~]# cd /usr/src/2.6.30-rc3-xen/arch/x86/boot/
[root@fedora11-x86-64-host boot]# file bzImage
bzImage: Linux kernel x86 boot executable bzImage, version 
2.6.30-rc3-enming.teo-tip (root, RO-rootFS, swap_dev 0x2, Normal VGA
[root@fedora11-x86-64-host boot]# file vmlinux.bin
vmlinux.bin: data

If I go into arch/x86/boot/compressed:-

[root@fedora11-x86-64-host compressed]# file vmlinux
vmlinux: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically 
linked, not stripped
[root@fedora11-x86-64-host compressed]# file vmlinux.bin
vmlinux.bin: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), 
statically linked, stripped
If I try to boot with vmlinux inside compressed (not stripped), I get 
the following error:
(XEN) elf_xen_note_check: ERROR: Not a Xen-ELF image: No ELF notes or 
'__xen_guest' section found.
Panic on CPU 0:
Could not set up DOM0 guest OS

I can only boot Xen Dom 0 successfully with vmlinux.bin inside 
compressed directory (stripped).
So in summary,

I cannot boot with bzImage and vmlinux.bin inside arch/x86/boot. I also 
cannot boot with vmlinux inside arch/x86/boot/compressed. I can only 
boot Xen Dom 0 successfully with vmlinux.bin inside 
arch/x86/boot/compressed.
Hence I am wondering if there are any problems or bugs with the Xen 
3.4.1 changeset of 6 August 2009.
--
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) 
BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx
Alma Maters: Singapore Polytechnic, National University of Singapore



On 08/19/2009 08:32 PM, Pasi Kärkkäinen wrote:
> On Wed, Aug 19, 2009 at 07:13:50PM +0800, Mr. Teo En Ming (Zhang Enming) wrote:
>    
> > Dear Pasi,
> >
> > I suspect that there may be some problems with the Xen 3.4.1 changeset of 6
> > August 2009.
> >
> > The bzImage kernel image that I compiled is not a bzip2 file, hence I
> > cannot bzcat it. If I tried to do so, it will complain that it is not a
> > bzip2 file.
> >
> >      
> What does "file<kernel>" say?
>
>    
> > I did specify the following in my kernel configuration:
> >
> > CONFIG_HAVE_KERNEL_BZIP2=y
> > CONFIG_KERNEL_BZIP2=y
> > CONFIG_RD_BZIP2=y
> > CONFIG_DECOMPRESS_BZIP2=y
> >
> > When I do a "xm dmesg" command, I see the following output:
> >
> > (XEN) Intel VT-d DMAR tables have been parsed.
> > (XEN) Intel VT-d Snoop Control not supported.
> > (XEN) Intel VT-d DMA Passthrough not supported.
> > (XEN) Intel VT-d Queued Invalidation not supported.
> > (XEN) Intel VT-d Interrupt Remapping not supported.
> > (XEN) I/O virtualisation enabled
> > (XEN) I/O virtualisation for PV guests disabled
> >
> > So can I confirm that I have VT-d support enabled?
> >
> > I have checked. Both bzImage and vmlinux.bin inside arch/x86/boot are NOT
> > ELF images.
> >
> >      
> Please run "file bzImage" and "file vmlinux.bin".
>
>    
> > Only vmlinux and vmlinux.bin inside arch/x86/boot/compressed are ELF64
> > images.
> >
> > However, vmlinux inside compressed cannot boot successfully.
> >
> >      
> What's the error with that?
>
>    
> > Only vmlinux.bin inside compressed can boot successfully, and this is what
> > I am using now.
> >
> >      
> Well good that something works..
>
>    
> > Regarding X server (GUI) unable to start, I have a backtrace inside
> > /var/log/Xorg.0.log.
> >
> > It complains about Fatal Server error:
> > Caught signal 11. Server aborting.
> >
> >      
> Can you pastebin the backtrace? Or the whole x.org log.
>
> -- Pasi
>
> _______________________________________________
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> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
>    



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