[Fedora-xen] KVM: unhandled exception

Wed Jan 16 05:12:33 UTC 2008

[root at potoroo ~]# /usr/bin/qemu-kvm -M pc -m 128 -smp 1 -monitor pty 
-no-acpi -boot c -hda /var/lib/xen/images/rto-test.img -net 
nic,macaddr=00:16:3e:31:8a:8f,vlan=0 -net tap,fd=13,script=,vlan=0 -usb 
-usbdevice tablet -vnc 0.0.0.0:0
char device redirected to /dev/pts/35
unhandled vm exit:  0x9
rax 000000000000001f rbx 000000000003f530 rcx 00000000000000ff rdx 
000000000000001f
rsi 0000000000000000 rdi 0000000000000063 rsp 000000000003f40c rbp 
000000000003f458
r8  0000000000000000 r9  0000000000000000 r10 0000000000000000 r11 
0000000000000000
r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 
0000000000000000
rip 000000008051ecc3 rflags 00010246
cs 0008 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type b l 0 g 1 avl 0)
ds 0023 (00000000/ffffffff p 1 dpl 3 db 1 s 1 type 3 l 0 g 1 avl 0)
es 0023 (00000000/ffffffff p 1 dpl 3 db 1 s 1 type 3 l 0 g 1 avl 0)
ss 0010 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
fs 0030 (ffdff000/00001fff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
gs 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 1 type 3 l 0 g 0 avl 0)
tr 0028 (80042000/000020ab p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0)
ldt 0000 (00000000/ffffffff p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl 0)
gdt 8003f000/3ff
idt 8003f400/7ff
cr0 e0000011 cr2 63 cr3 305000 cr4 20 cr8 0 efer 0
Aborted
[root at potoroo ~]#

I created the file /var/lib/xen/images/rto-test.img by installing 
Windows XP to the point it reboots.

I then attached /var/lib/xen/images/rto-test.img to my Debian rescue 
system, and copied /var/lib/xen/images/rto.img to it using ntfsclone. 
This is the ntfsresize info on the file:

[root at potoroo ~]# ntfsresize --info /var/lib/xen/images/rto.img -f
ntfsresize v1.13.1 (libntfs 9:0:0)
Device name        : /var/lib/xen/images/rto.img
NTFS volume version: 3.1
Cluster size       : 4096 bytes
Current volume size: 11999994368 bytes (12000 MB)
Current device size: 60011606528 bytes (60012 MB)
ERROR: This software has detected that the disk has at least 2 bad sectors.
****************************************************************************
* WARNING: The disk has bad sector. This means physical damage on the disk *
* surface caused by deterioration, manufacturing faults or other reason.   *
* The reliability of the disk may stay stable or degrade fast. We suggest  *
* making a full backup urgently by running 'ntfsclone --rescue ...' then   *
* run 'chkdsk /f /r' on Windows and rebooot it TWICE! Then you can resize  *
* NTFS safely by additionally using the --bad-sectors option of ntfsresize.*
****************************************************************************
[root at potoroo ~]#

Note that the bad sectors are a legacy of the install to the original, 
long deceased drive. I've not found a way to clear it, the system runs 
ine and the bad sectors are not relevant to the problem.

This is the image I'm trying to boot:
[root at potoroo ~]# parted /var/lib/xen/images/rto-test.img print
Model:  (file)
Disk /var/lib/xen/images/rto-test.img: 14.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type     File system  Flags
  1      32.3kB  14.7GB  14.7GB  primary  ntfs         boot

[root at potoroo ~]#

the MBR is fine:
[root at potoroo ~]# cat /var/lib/xen/images/rto-test.img   | xxd | head -32
0000000: 33c0 8ed0 bc00 7cfb 5007 501f fcbe 1b7c  3.....|.P.P....|
0000010: bf1b 0650 57b9 e501 f3a4 cbbd be07 b104  ...PW...........
0000020: 386e 007c 0975 1383 c510 e2f4 cd18 8bf5  8n.|.u..........
0000030: 83c6 1049 7419 382c 74f6 a0b5 07b4 078b  ...It.8,t.......
0000040: f0ac 3c00 74fc bb07 00b4 0ecd 10eb f288  ..<.t...........
0000050: 4e10 e846 0073 2afe 4610 807e 040b 740b  N..F.s*.F..~..t.
0000060: 807e 040c 7405 a0b6 0775 d280 4602 0683  .~..t....u..F...
0000070: 4608 0683 560a 00e8 2100 7305 a0b6 07eb  F...V...!.s.....
0000080: bc81 3efe 7d55 aa74 0b80 7e10 0074 c8a0  ..>.}U.t..~..t..
0000090: b707 eba9 8bfc 1e57 8bf5 cbbf 0500 8a56  .......W.......V
00000a0: 00b4 08cd 1372 238a c124 3f98 8ade 8afc  .....r#..$?.....
00000b0: 43f7 e38b d186 d6b1 06d2 ee42 f7e2 3956  C..........B..9V
00000c0: 0a77 2372 0539 4608 731c b801 02bb 007c  .w#r.9F.s......|
00000d0: 8b4e 028b 5600 cd13 7351 4f74 4e32 e48a  .N..V...sQOtN2..
00000e0: 5600 cd13 ebe4 8a56 0060 bbaa 55b4 41cd  V......V.`..U.A.
00000f0: 1372 3681 fb55 aa75 30f6 c101 742b 6160  .r6..U.u0...t+a`
0000100: 6a00 6a00 ff76 0aff 7608 6a00 6800 7c6a  j.j..v..v.j.h.|j
0000110: 016a 10b4 428b f4cd 1361 6173 0e4f 740b  .j..B....aas.Ot.
0000120: 32e4 8a56 00cd 13eb d661 f9c3 496e 7661  2..V.....a..Inva
0000130: 6c69 6420 7061 7274 6974 696f 6e20 7461  lid partition ta
0000140: 626c 6500 4572 726f 7220 6c6f 6164 696e  ble.Error loadin
0000150: 6720 6f70 6572 6174 696e 6720 7379 7374  g operating syst
0000160: 656d 004d 6973 7369 6e67 206f 7065 7261  em.Missing opera
0000170: 7469 6e67 2073 7973 7465 6d00 0000 0000  ting system.....
0000180: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000190: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00001a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00001b0: 0000 0000 002c 4463 857a 857a 0000 8001  .....,Dc.z.z....
00001c0: 0100 07fe ffff 3f00 0000 f811 b501 0000  ......?.........
00001d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00001e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00001f0: 0000 0000 0000 0000 0000 0000 0000 55aa  ..............U.
[root at potoroo ~]#

Oh, in case it matters:
[root at potoroo ~]# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 CPU          6300  @ 1.86GHz
stepping        : 6
cpu MHz         : 1596.000
cache size      : 2048 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe 
syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor 
ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 3725.73
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor       : 1
etc
and
[root at potoroo ~]# uname -a
Linux potoroo.demo.lan 2.6.23.9-85.fc8 #1 SMP Fri Dec 7 15:49:36 EST 
2007 x86_64 x86_64 x86_64 GNU/Linux

What is wrong, and what do I need to do to fix it?

-- 

Cheers
John

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