[Xen-devel] Cannot start up HVM guest when maxmem is not equal to memory and HAP is enabled.

[Yufang Zhang <yufang521247@xxxxxxxxx>]

Hi all,

On my production deployment with xen-3.4.4-rc1, HVM guest would not start up when maxmem is set not equal to memory, unless HAP is disable(hap=0). The guest just hangs at 'Booting from Hard Disk...' as shown in the attachment. I find that both Oracle VM and Fedora have the same problem per the following links: 

http://docs.oracle.com/cd/E15458_01/doc.22/e15443/toc.htm#BABBIBFD

http://docs.oracle.com/cd/E26996_01/e18546/CJAGDAGB.html#id419003

https://bugzilla.redhat.com/show_bug.cgi?id=645319

Could I ask if there is any work in upstream/xen-unstable to fix this problem? 

Thanks.

Below is the xm dmesg output related with the hvm guest:

(XEN) HVM3: HVM Loader

(XEN) HVM3: Detected Xen v3.4.4-rc1-pre

(XEN) HVM3: CPU speed is 2267 MHz

(XEN) irq.c:243: Dom3 PCI link 0 changed 0 -> 5

(XEN) HVM3: PCI-ISA link 0 routed to IRQ5

(XEN) irq.c:243: Dom3 PCI link 1 changed 0 -> 10

(XEN) HVM3: PCI-ISA link 1 routed to IRQ10

(XEN) irq.c:243: Dom3 PCI link 2 changed 0 -> 11

(XEN) HVM3: PCI-ISA link 2 routed to IRQ11

(XEN) irq.c:243: Dom3 PCI link 3 changed 0 -> 5

(XEN) HVM3: PCI-ISA link 3 routed to IRQ5

(XEN) HVM3: pci dev 01:2 INTD->IRQ5

(XEN) HVM3: pci dev 01:3 INTA->IRQ10

(XEN) HVM3: pci dev 03:0 INTA->IRQ5

(XEN) HVM3: pci dev 04:0 INTA->IRQ5

(XEN) HVM3: pci dev 02:0 bar 10 size 02000000: f0000008

(XEN) HVM3: pci dev 03:0 bar 14 size 01000000: f2000008

(XEN) HVM3: pci dev 02:0 bar 14 size 00001000: f3000000

(XEN) HVM3: pci dev 03:0 bar 10 size 00000100: 0000c001

(XEN) HVM3: pci dev 04:0 bar 10 size 00000100: 0000c101

(XEN) HVM3: pci dev 04:0 bar 14 size 00000100: f3001000

(XEN) HVM3: pci dev 01:2 bar 20 size 00000020: 0000c201

(XEN) HVM3: pci dev 01:1 bar 20 size 00000010: 0000c221

(XEN) HVM3: Multiprocessor initialisation:

(XEN) HVM3:  - CPU0 ... 40-bit phys ... fixed MTRRs ... var MTRRs [2/8] ... done.

(XEN) HVM3: Writing SMBIOS tables ...

(XEN) HVM3: Loading ROMBIOS ...

(XEN) HVM3: 10332 bytes of ROMBIOS high-memory extensions:

(XEN) HVM3:   Relocating to 0xfc000000-0xfc00285c ... done

(XEN) HVM3: Creating MP tables ...

(XEN) HVM3: Loading Cirrus VGABIOS ...

(XEN) HVM3: Loading PCI Option ROM ...

(XEN) HVM3:  - Manufacturer: http://etherboot.org

(XEN) HVM3:  - Product name: gPXE

(XEN) HVM3: Loading ACPI ...

(XEN) HVM3:  - Lo data: 000ea020-000ea04f

(XEN) HVM3:  - Hi data: fc002c00-fc0060bf

(XEN) HVM3: vm86 TSS at fc006400

(XEN) HVM3: BIOS map:

(XEN) HVM3:  c0000-c8fff: VGA BIOS

(XEN) HVM3:  c9000-d57ff: Etherboot ROM

(XEN) HVM3:  eb000-eb150: SMBIOS tables

(XEN) HVM3:  f0000-fffff: Main BIOS

(XEN) HVM3: Invoking ROMBIOS ...

(XEN) HVM3: $Revision: 1.221 $ $Date: 2008/12/07 17:32:29 $

(XEN) stdvga.c:147:d3 entering stdvga and caching modes

(XEN) HVM3: VGABios $Id: vgabios.c,v 1.67 2008/01/27 09:44:12 vruppert Exp $

(XEN) HVM3: Bochs BIOS - build: 06/23/99

(XEN) HVM3: $Revision: 1.221 $ $Date: 2008/12/07 17:32:29 $

(XEN) HVM3: Options: apmbios pcibios eltorito PMM 

(XEN) HVM3: 

(XEN) HVM3: ata0-0: PCHS=16383/16/63 translation=lba LCHS=1024/255/63

(XEN) HVM3: ata0 master: QEMU HARDDISK ATA-7 Hard-Disk (8192 MBytes)

(XEN) HVM3: IDE time out

(XEN) HVM3: 

(XEN) HVM3: 

(XEN) HVM3: 

(XEN) HVM3: Press F12 for boot menu.

(XEN) HVM3: 

(XEN) HVM3: Booting from Hard Disk...

(XEN) HVM3: Booting from 0000:7c00

(XEN) io.c:199:d3 MMIO emulation failed @ 0008:4013b1: 90 86 95 21 08 83

Attachment: guest_hang_screen.png
Description: PNG image

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