[Xen-users] HVMLoader bug - staging

[Paulina Szubarczyk <paulinaszubarczyk@xxxxxxxxx>]

I have just updated the Xen staging branch (from commit '20624fde57^' to 
'50c7203cc101^') and a domain that was working fine just a couple hours 
ago now fails to create with the log from xl dmesg:
(d1) Loading SeaBIOS ...
(d1) no BIOS ROM image found
(d1) *** HVMLoader bug at hvmloader.c:370
(d1) *** HVMLoader crashed.

I see there were some changes according SeaBIOS in this period.
Is it a regression or should I adjust my configuration?

Following a broader xl dmesg log:

(XEN) memory.c:213:d0v3 Could not allocate order=18 extent: id=1 
memflags=0 (0 of 1)
(XEN) memory.c:213:d0v3 Could not allocate order=9 extent: id=1 
memflags=0 (2 of 4)
(XEN) memory.c:213:d0v3 Could not allocate order=9 extent: id=1 
memflags=0 (0 of 4)
(XEN) memory.c:213:d0v3 Could not allocate order=9 extent: id=1 
memflags=0 (0 of 4)
(XEN) memory.c:213:d0v3 Could not allocate order=9 extent: id=1 
memflags=0 (0 of 4)
(XEN) memory.c:213:d0v3 Could not allocate order=9 extent: id=1 
memflags=0 (0 of 4)
(XEN) memory.c:213:d0v3 Could not allocate order=9 extent: id=1 
memflags=0 (0 of 4)
(XEN) HVM1 save: CPU
(XEN) HVM1 save: PIC
(XEN) HVM1 save: IOAPIC
(XEN) HVM1 save: LAPIC
(XEN) HVM1 save: LAPIC_REGS
(XEN) HVM1 save: PCI_IRQ
(XEN) HVM1 save: ISA_IRQ
(XEN) HVM1 save: PCI_LINK
(XEN) HVM1 save: PIT
(XEN) HVM1 save: RTC
(XEN) HVM1 save: HPET
(XEN) HVM1 save: PMTIMER
(XEN) HVM1 save: MTRR
(XEN) HVM1 save: VIRIDIAN_DOMAIN
(XEN) HVM1 save: CPU_XSAVE
(XEN) HVM1 save: VIRIDIAN_VCPU
(XEN) HVM1 save: VMCE_VCPU
(XEN) HVM1 save: TSC_ADJUST
(XEN) HVM1 restore: CPU 0
(d1) HVM Loader
(d1) Detected Xen v4.8-unstable
(d1) Xenbus rings @0xfeffc000, event channel 1
(d1) System requested SeaBIOS
(d1) CPU speed is 1696 MHz
(d1) Relocating guest memory for lowmem MMIO space disabled
(XEN) irq.c:275: Dom1 PCI link 0 changed 0 -> 5
(d1) PCI-ISA link 0 routed to IRQ5
(XEN) irq.c:275: Dom1 PCI link 1 changed 0 -> 10
(d1) PCI-ISA link 1 routed to IRQ10
(XEN) irq.c:275: Dom1 PCI link 2 changed 0 -> 11
(d1) PCI-ISA link 2 routed to IRQ11
(XEN) irq.c:275: Dom1 PCI link 3 changed 0 -> 5
(d1) PCI-ISA link 3 routed to IRQ5
(d1) pci dev 01:2 INTD->IRQ5
(d1) pci dev 01:3 INTA->IRQ10
(d1) pci dev 02:0 INTA->IRQ11
(d1) pci dev 04:0 INTA->IRQ5
(d1) No RAM in high memory; setting high_mem resource base to 100000000
(d1) pci dev 03:0 bar 10 size 002000000: 0f0000008
(d1) pci dev 02:0 bar 14 size 001000000: 0f2000008
(d1) pci dev 04:0 bar 30 size 000040000: 0f3000000
(d1) pci dev 03:0 bar 30 size 000010000: 0f3040000
(d1) pci dev 03:0 bar 14 size 000001000: 0f3050000
(d1) pci dev 02:0 bar 10 size 000000100: 00000c001
(d1) pci dev 04:0 bar 10 size 000000100: 00000c101
(d1) pci dev 04:0 bar 14 size 000000100: 0f3051000
(d1) pci dev 01:2 bar 20 size 000000020: 00000c201
(d1) pci dev 01:1 bar 20 size 000000010: 00000c221
(d1) Multiprocessor initialisation:
(d1)  - CPU0 ... 39-bit phys ... fixed MTRRs ... var MTRRs [1/8] ... done.
(d1) Testing HVM environment:
(d1)  - REP INSB across page boundaries ... passed
(d1)  - GS base MSRs and SWAPGS ... passed
(d1) Passed 2 of 2 tests
(d1) Writing SMBIOS tables ...
(d1) Loading SeaBIOS ...
(d1) no BIOS ROM image found
(d1) *** HVMLoader bug at hvmloader.c:370
(d1) *** HVMLoader crashed.

the domain .cfg file:
#
# Kernel
#`
builder = 'hvm'
memory  = '3072'
vcpus   = '1'
boot    = "c"
bootloader = "pygrub"

#
# Disk devices
#
disk    = ['phy:/dev/vg0/suse,hda,w']
acpi    = '1'
apic    = '1'
pae     = '1'
serial  = 'pty'
usb     = '1'

#
# Networking
#
vif     = ['bridge=xenbr0']
dhcp    = 'dhcp'


Thank you,
Paulina Szubarczyk


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