Hello,
Yesterday I compiled and installed kvm-55 release and I am not able to get
it working.
When I try to run the qemu with following command:
$ qemu-system-x86_64 -hda vdisk.img -cdrom ubuntu_7.10_32.iso -boot d -m
512
I got some exception as shown below:
exception 13 (33)
rax 0000000000000469 rbx 0000000000800001 rcx 0000000000004300 rdx
0000000000000000
rsi 000000000005961d rdi 000000000005961c rsp 00000000fffaa9cc rbp
000000000000200c
r8 0000000000000000 r9 0000000000000000 r10 0000000000000000 r11
0000000000000000
r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15
0000000000000000
rip 000000000000b04b rflags 00033006
cs 4143 (00041430/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
ds 4004 (00040040/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
es 4004 (00040040/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
ss 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
fs 3002 (00030020/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
tr 0000 (20c00000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0)
ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0)
gdt 40920/47
idt 0/ffff
cr0 60000010 cr2 0 cr3 0 cr4 0 cr8 0 efer 0
code: 0f 17 3e 28 08 02 28 3e 01 17 0f 17 46 28 08 02 28 0e 01 17 --> 0f 17
3e 28 08 02 28 5d 01 17 0f 28 08 02 28 5e 01 17 0f 17 3b 28 08 02 28 5f 01
17 0f 28
Aborted (core dumped)
And a core file is generated.
When i tried to see in the core file, the backtrace of function call is as
below:
#0 0x00002b46cd3fb765 in raise () from /lib/libc.so.6
#1 0x00002b46cd3fd1c0 in abort () from /lib/libc.so.6
#2 0x00000000004f2cd3 in kvm_run (kvm=0x2a47040, vcpu=0) at libkvm.c:938
#3 0x000000000048db96 in kvm_cpu_exec (env=0x53ce) at
/home/avadh/workspace/kvm-55/qemu/qemu-kvm.c:547
#4 0x000000000048e1ae in kvm_main_loop_cpu (env=0x2ae8680) at
/home/avadh/workspace/kvm-55/qemu/qemu-kvm.c:748
#5 0x000000000040dd27 in main_loop () at
/home/avadh/workspace/kvm-55/qemu/vl.c:7229
#6 0x000000000040fd03 in main (argc=1, argv=0x2) at
/home/avadh/workspace/kvm-55/qemu/vl.c:8966
In this, the interesting point is at #3, where the 'env' pointer's value is
different than its value in #4.
If I run the above command with '-no-kvm' option, it runs perfectly. So it
seems that there is some bug in kvm.
My machine specs are:
OS : Ubuntu 7.10 - 64 bit
Processor: Intel Core 2 Duo
Memory : 2G
Host Kernel : 2.6.22.14
Thanks,
Avadh
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