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xen-devel
Re: [Xen-devel] Unable to start hvm guest on cs16998
This is due to the change over to use the realmode emulator in
place of vmxassist. I presume that you get the error even when
starting just one guest (i.e. not 32 at a time)?
The instruction that's failed seems to be a "pop %es"; not sure
why unfortunately - the code path seems to have no error option
save where the realmode memory ops are missing, or when
dealing with CS or SS (which have constraints).
Can you add some tracing to xen/arch/x86/x86_emulate.c
to see which [if any] of lines 2049, 2053 or 2056 are failing?
cheers,
S.
----- Original Message -----
From: "Carb, Brian A" <Brian.Carb@xxxxxxxxxx>
To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
Cc: "Carb, Brian A" <Brian.Carb@xxxxxxxxxx>
Sent: Monday, February 11, 2008 8:07 PM
Subject: [Xen-devel] Unable to start hvm guest on cs16998
Running Xen Unstable changeset 16998 (pulled 20080208) on Unisys
ES7000/one 64x 256gb with SLE10SP1 x64.
Trying to start an hvm guest. Attempted 32x 240gb x64 Windows Datacenter
hvm guest and 32x 24gb sles10x64 guest - both produce a similar error:
XEN) HVM201: Booting from Hard Disk...
(XEN) HVM201: int13_harddisk: function 41, unmapped device for ELDL=81
(XEN) HVM201: int13_harddisk: function 08, unmapped device for ELDL=81
(XEN) HVM201: *** int 15h function AX=00C0, BX=0000 not yet supported!
(XEN) realmode.c:715:d201 Failed to emulate insn.
(XEN) realmode.c:775:d201 Real-mode emulation failed @ 3b5b:0000185c: 07
eb 18 f6 06 f2
(XEN) domain_crash_sync called from realmode.c:776
(XEN) Domain 201 (vcpu#0) crashed on cpu#63:
(XEN) ----[ Xen-3.3-unstable x86_64 debug=y Tainted: M ]----
(XEN) CPU: 63
(XEN) RIP: 0018:[<000000000000185c>]
(XEN) RFLAGS: 0000000000000002 CONTEXT: hvm
(XEN) rax: 0000000000000011 rbx: 000000000004d160 rcx:
0000000000063f40
(XEN) rdx: 0000000000002c10 rsi: 0000000000000052 rdi:
000000000002c554
(XEN) rbp: 0000000000001ff0 rsp: 0000000000001fd6 r8:
0000000000000000
(XEN) r9: 0000000000000000 r10: 0000000000000000 r11:
0000000000000000
(XEN) r12: 0000000000000000 r13: 0000000000000000 r14:
0000000000000000
(XEN) r15: 0000000000000000 cr0: 0000000000000011 cr4:
0000000000000000
(XEN) cr3: 0000000000000000 cr2: 0000000000000000
(XEN) ds: 0020 es: 0020 fs: 0020 gs: 0020 ss: 0020 cs: 0018
Xen was built with max_phys_cpus=64 and debug=y.
The menu.lst entry:title XEN
root (hd0,0)
kernel /boot/xen.gz com1=115200,8n1 apic_verbosity=debug
dom0_mem=4096M console=com1,vga numa=on xenheap_megabytes=64
module /boot/vmlinuz-xen
root=/dev/disk/by-id/scsi-3600508e000000000ff4df9da7f80cc05-part1
vga=0x314 resume=/dev/sda2 splash=silent showopts debug=y
module /boot/initrd-xen
Thanks for any ideas.
brian carb
unisys corporation - malvern, pa
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