Re: [Xen-users] Please help, I get a kernel panic on all DomUs when setting vif in VM config file

[Pierre CHAUSSEE <silversens@xxxxxxxxx>]

>> I just don't get it.
>> I've been using Xen for quite a long time, never had any trouble on x86, so
>> I'm trying to move on an x86_64 platform.
>> 
>> Everything went well (building, booting on Dom0, ...) except that I can only
>> start my VMs when vif parameter is not filled !
>> When I remove the comment on my "vif  = [ 'type=ioemu, bridge=xenbr0' ]"
>> then I get a kernel panic.
>> 
>> Here's my VM config :
>> 
>> kernel = "/usr/lib/xen/boot/hvmloader"
> 
> Usually I put this as well:
> device_model = '/usr/lib64/xen/bin/qemu-dm'
> 
>> 
>> builder='hvm'
>> 
>> name="test"
>> boot='c'
>> vnc = 1
>> sdl = 0
>> memory = 1024   # Memory size
>> swap   = 128    # Swap size
> 
> where did you get instruction to use "swap" from?
> 
>> disk = [ 'phy:vg00/win2008_x64,ioemu:hda,w' ]
> 
> for x64 windows, I think you also need to specify
> acpi=1
> apic=1
> pae=1
> 
>> 
>> vif = [ 'type=ioemu, bridge=xenbr0' ]
> 
> try removing "type=ioemu"

I just tried all of those. It didn't help I still get my kernel panic.


> 
>> keyboard='fr'
>> 
>> And here's the kernel panic output :
>> 
>> $ xm create /etc/xen/first_vm
>> 
>> [  123.729203] BUG: unable to handle kernel NULL pointer dereference at
>> 0000000000000008
>> [  123.729569] IP: [<ffffffff81321416>] netback_uevent+0x1e/0xb6
>> [  123.729771] PGD 72afb067 PUD 72aa3067 PMD 0
>> [  123.730003] Oops: 0000 [#1] SMP
> 
> What dom0 kernel are you using? It's often best to start with
> known-good setup first. Centos or Opensuse with their bundled Xen
> version is a good start.

Well I've been trying 2.6.27, 2.6.31 and this one is 2.6.32.
Yeah thank you for the tip with known good setups, but the thing is
it's not my first Xen setup, and I'm trying to port it to Crux. 
I already did that for x86, but for x86_64 I get those problems...

Thank you very much for trying to help !

> 
> -- 
> Fajar


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