Re: [Xen-devel] Need help with qemu args debug

[Fantu <fantonifabio@xxxxxxxxxx>]

Stefano Stabellini-3 wrote
> 
> On Fri, 2 Mar 2012, Fantu wrote:
>> Stefano Stabellini-3 wrote
>> > 
>> > On Wed, 29 Feb 2012, Fantu wrote:
>> >> Now I search for other options, found and tried with -global
>> >> qxl-vga.vram_size=4194304 but same problem...
>> >> 
>> >> do_spice_init: starting 0.10.1
>> >> spice_server_add_interface: SPICE_INTERFACE_MIGRATION
>> >> spice_server_add_interface: SPICE_INTERFACE_KEYBOARD
>> >> spice_server_add_interface: SPICE_INTERFACE_MOUSE
>> >> qemu: hardware error: xen: failed to populate ram at 40000000
>> > 
>> > You are going in the right direction but I think QXL might be doing
>> > other allocations other than the main vga videoram.
>> > Now that I think about it, another way around the memory allocation
>> > problem would be to add "maxmem=MEMORY" in your VM config file, where
>> > MEMORY is equal to the amount of memory you assign to the VM plus the
>> > videram.
>> > 
>> > So if you have:
>> > 
>> > memory=1024
>> > 
>> > then you could try adding:
>> > 
>> > maxmem=1088
>> > 
>> With only maxmem add not work but also with videoram and high value start
>> and give other error.
>> With videoram=64:
>> qemu: hardware error: xen: failed to populate ram at 44002000
>> With videoram=128 start qemu and spice is working but system not.
>> 
>> The actual domU configuration files:
>> ----------------------------------------------------
>> name='PRECISEHVM'
>> builder="hvm"
>> memory=1024
>> maxmem=1536
>> vcpus=2
>> #hap=1
>> #pae=1
>> #acpi=1
>> #apic=1
>> #nx=1
>> vif=['bridge=xenbr0']
>> #vfb=['vnc=1,vncunused=1,vnclisten="0.0.0.0",keymap="it"']
>> disk=['/mnt/vm/disks/PRECISEHVM.disk1.xm,raw,hda,rw',
>> '/dev/sr0,raw,hdb,ro,cdrom']
>> boot='c'
>> #xen_platform_pci=1
>> device_model_version='qemu-xen'
>> vnc=0
>> #vncunused=1
>> #vnclisten="0.0.0.0"
>> #keymap="it"
>> #stdvga=1
>> #videoram=16
>> #sdl=0
>> spice=1
>> spicehost='0.0.0.0'
>> spiceport=6000
>> spicedisable_ticketing=1
>> #spicepasswd='test'
>> device_model_override="/usr/lib/xen/bin/qemu-debug.sh"
>> #device_model_args=["-global qxl-vga.vram_size=8388308"]
>> #on_crash='preserve'
>> videoram=128
>> ----------------------------------------------------
>> 
>> Starting QEMU with: -xen-domid 45 -chardev
>> socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-45,server,nowait -mon
>> chardev=libxl-cmd,mode=control -name PRECISEHVM -vga qxl -spice
>> port=6000,tls-port=0,addr=0.0.0.0,disable-ticketing,agent-mouse=on -boot
>> order=c -smp 2,maxcpus=3 -device
>> rtl8139,id=nic0,netdev=net0,mac=00:16:3e:56:77:cd -netdev
>> type=tap,id=net0,ifname=tap45.0,script=no -M xenfv -m 1024 -drive
>> file=/mnt/vm/disks/PRECISEHVM.disk1.xm,if=ide,index=0,media=disk,format=raw
>> -drive file=/dev/sr0,if=ide,index=1,media=cdrom,format=raw
>> 
>> 
>> The xl dmesg PRECISEHVM: 
>> http://xen.1045712.n5.nabble.com/file/n5530386/xl-dmesg-PRECISEHVM
>> xl-dmesg-PRECISEHVM 
>> 
>> Connect to domU with spice work but qemu show Boot failed: could not read
>> the boot disk.
>> 
>> If you need more data require and I will post.
> 
> I think this might be just a disk configuration issue.
> If you want to boot from the cdrom you need:
> 
> boot='dc' in the vm config file and as command line option to qemu
> instead of just 'c'.
> 
> If that doesn't work, please post QEMU's logs and the output of
> xenstore-ls once the VM is started.
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@.xen
> http://lists.xen.org/xen-devel
> 

Tried with boot='dc', same result.
Qemu log: 
http://xen.1045712.n5.nabble.com/file/n5531045/qemu-dm-PRECISEHVM.log
qemu-dm-PRECISEHVM.log 
Xenstore-ls:  http://xen.1045712.n5.nabble.com/file/n5531045/xenstore-ls
xenstore-ls 

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