RE: [Xen-users] Xen boot errors

[Mike Viau <viaum@xxxxxxxxxxxxxxx>]

Firstly thanks for the help thus far :)

With the addition of the Xen-specific options referenced (below) by Opensuse 11.2's kernel-xen additional options in the .config, more dialog occurs during the kernel compilation now.

I am fairly sure that the 'debug' releated options (relating to the network and pci backends) are not required to operate a stable XEN system. I was hoping to confirm that those options would just make error reporting more detailed (verbose) and not change the way XEN itself will operate?

-Will all the XEN features work without the debugging support compilied into the kernel?

-Also would someone like to weigh in as to how performance might be impacted by leaving these options enabled?

Any other XEN kernel configuration tips would be much apprecaited. Although I have not mentioned previously my system is x86_64 Debian Lenny. Hardware is an Intel Core i7 860, 8GB RAM, Intel VT-d and VT-d I/O enabled at the bios level.

Please correct me if I am incorrect with my assumption, thanks.

 
-M

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From: mike.viau@xxxxxxxxxxxxxxx
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] Xen boot errors
Date: Sun, 31 Jan 2010 11:35:06 -0500

> Date: Sun, 31 Jan 2010 23:15:39 +0700
> Subject: Re: [Xen-users] Xen boot errors
> From: fajar@xxxxxxxxx
> To: mike.viau@xxxxxxxxxxxxxxx
> CC: xen-users@xxxxxxxxxxxxxxxxxxx
>
> On Sun, Jan 31, 2010 at 11:04 PM, Mike Viau <viaum@xxxxxxxxxxxxxxx> wrote:
> > I compilied & installed the kernel (with x86_64 default config)
>
> which default config?

In the tar.gz source snapshot I downloaded there was a default x86_64 config at ./arch/x86/configs/x86_64_defconfig

>
> > and edit my
> > bootloader (grub) config and got the same error message on the booting of
> > the Xen hypervisor.
> >
> > (XEN) elf_xen_note_check: ERROR: Will only load images built for the generic
> > loader or Linux images
> > (XEN) Panic on CPU0:
> > (XEN) Could not set up DOM0 guest OS
>
> Did you enable Xen-specific options? For example, Opensuse 11.2's
> kernel-xen has these options enabled:
>
> CONFIG_X86_64_XEN=y
> CONFIG_X86_XEN_MCE=y
> CONFIG_XEN_PCIDEV_FRONTEND=y
> CONFIG_NETXEN_NIC=m
> CONFIG_TCG_XEN=m
> CONFIG_XEN=y
> CONFIG_XEN_INTERFACE_VERSION=0x00030207
> CONFIG_XEN_PRIVILEGED_GUEST=y
> CONFIG_XEN_PRIVCMD=y
> CONFIG_XEN_XENBUS_DEV=y
> CONFIG_XEN_NETDEV_ACCEL_SFC_UTIL=m
> CONFIG_XEN_BACKEND=m
> CONFIG_XEN_BLKDEV_BACKEND=m
> CONFIG_XEN_BLKDEV_TAP=m
> CONFIG_XEN_BLKDEV_TAP2=m
> CONFIG_XEN_BLKBACK_PAGEMAP=m
> CONFIG_XEN_NETDEV_BACKEND=m
> CONFIG_XEN_NETDEV_TX_SHIFT=10
> CONFIG_XEN_NETDEV_ACCEL_SFC_BACKEND=m
> CONFIG_XEN_NETDEV_LOOPBACK=m
> CONFIG_XEN_PCIDEV_BACKEND=m
> CONFIG_XEN_PCIDEV_BACKEND_VPCI=y
> CONFIG_XEN_TPMDEV_BACKEND=m
> CONFIG_XEN_SCSI_BACKEND=m
> CONFIG_XEN_USB_BACKEND=m
> CONFIG_XEN_BLKDEV_FRONTEND=m
> CONFIG_XEN_NETDEV_FRONTEND=m
> CONFIG_XEN_NETDEV_ACCEL_SFC_FRONTEND=m
> CONFIG_XEN_SCSI_FRONTEND=m
> CONFIG_XEN_USB_FRONTEND=m
> CONFIG_XEN_GRANT_DEV=m
> CONFIG_XEN_FRAMEBUFFER=y
> CONFIG_XEN_KEYBOARD=y
> CONFIG_XEN_SYSFS=y
> CONFIG_XEN_NR_GUEST_DEVICES=2048
> CONFIG_XEN_COMPAT_030300_AND_LATER=y
> CONFIG_XEN_COMPAT=0x030300
> CONFIG_XEN_VCPU_INFO_PLACEMENT=y
> CONFIG_XEN_SMPBOOT=y
> CONFIG_XEN_DEVMEM=y
> CONFIG_XEN_BALLOON=y
> CONFIG_XEN_SCRUB_PAGES=y

No I did not put these lines in the config file, I did not see any CONFIG_XEN options in the default config so I thought that the xen-patchs might have enabled these options by default.


I will added these line to the current .config and recompile & test...


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

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