Re: [Xen-devel] [PATCHv9 0/9] Xen: extend kexec hypercall for use with pv-ops kernels

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 21/10/13 04:11, Xu, YongweiX wrote:
> Hi, David
> I have tried to use kexec with upstream xen source(C/S:27758) which has been 
> put your patches and didn't not work on Dom0. Step as below:
> 1. use upstream xen and tools with your patch
> 2. use kexec-tools with branch "remotes/origin/xen-v6"
> 3. kexec -l -t multiboot-x86 /boot/xen.gz --module="/boot/vmlinuz-xen 
> root=/dev/sda1 o" --module="/boot/initrd-xen.img"

kexec segfaults for me here because of a missing command line for Xen.
Specifying one with --command-line="console=com1 etc" will work around this.

> 4. kexec -e
> The phenomenon was that the kernel didn't change, but the network broke.
> 
> Is there any problem in my operation?

Yes, you're trying something that is not supported -- see the comment at
the top of kexec/arch/i386/kexec-multiboot-x86.c.  Only ELF32 images are
supported.

David

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