Re: Kernel 3.9 - can't boot qemu with accel=kvm _and_ networking enabled

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Here they are:

(qemu) x/8i $pc
0x00000000000fc49b:  lgdtw  %cs:-0x2c60
0x00000000000fc4a1:  mov    %cr0,%eax
0x00000000000fc4a4:  or     $0x1,%eax
0x00000000000fc4a8:  mov    %eax,%cr0
0x00000000000fc4ab:  ljmpl  $0x8,$0xfc4b3
0x00000000000fc4b3:  mov    $0x10,%ax
0x00000000000fc4b6:  add    %al,(%bx,%si)
0x00000000000fc4b8:  mov    %ax,%ds

(qemu) x/64b $pc
0x00000000000fc49b:  lgdtw  %cs:-0x2c60
0x00000000000fc4a1:  mov    %cr0,%eax
0x00000000000fc4a4:  or     $0x1,%eax
0x00000000000fc4a8:  mov    %eax,%cr0
0x00000000000fc4ab:  ljmpl  $0x8,$0xfc4b3
0x00000000000fc4b3:  mov    $0x10,%ax
0x00000000000fc4b6:  add    %al,(%bx,%si)
0x00000000000fc4b8:  mov    %ax,%ds
0x00000000000fc4ba:  mov    %ax,%es
0x00000000000fc4bc:  mov    %ax,%ss
0x00000000000fc4be:  mov    %ax,%fs
0x00000000000fc4c0:  mov    %ax,%gs
0x00000000000fc4c2:  mov    %cx,%ax
0x00000000000fc4c4:  jmp    *%dx
0x00000000000fc4c6:  mov    %ax,%cx
0x00000000000fc4c8:  mov    $0x20,%ax
0x00000000000fc4cb:  add    %al,(%bx,%si)
0x00000000000fc4cd:  mov    %ax,%ds
0x00000000000fc4cf:  mov    %ax,%es
0x00000000000fc4d1:  mov    %ax,%ss
0x00000000000fc4d3:  mov    %ax,%fs
0x00000000000fc4d5:  mov    %ax,%gs
0x00000000000fc4d7:  ljmpl  $0xc189,$0x18c4f4
0x00000000000fc4df:  mov    $0x30,%ax
0x00000000000fc4e2:  add    %al,(%bx,%si)
0x00000000000fc4e4:  mov    %ax,%ds
0x00000000000fc4e6:  mov    %ax,%es
0x00000000000fc4e8:  mov    %ax,%ss
0x00000000000fc4ea:  mov    %ax,%fs
0x00000000000fc4ec:  mov    %ax,%gs
0x00000000000fc4ee:  ljmpl  $0x200f,$0x28c4f4
0x00000000000fc4f6:  shlb   $0xe0,-0x7d(%bp)
0x00000000000fc4fa:  decb   (%bx)
0x00000000000fc4fc:  and    %al,%al
0x00000000000fc4fe:  ljmp   $0xf000,$0xc503
0x00000000000fc503:  lidtw  %cs:-0x2c18
0x00000000000fc509:  xor    %ax,%ax
0x00000000000fc50b:  mov    %ax,%fs
0x00000000000fc50d:  mov    %ax,%gs
0x00000000000fc50f:  mov    %ax,%es
0x00000000000fc511:  mov    %ax,%ds
0x00000000000fc513:  mov    %ax,%ss
0x00000000000fc515:  mov    %ecx,%eax
0x00000000000fc518:  jmpl   *%edx
0x00000000000fc51b:  push   %ebp
0x00000000000fc51d:  push   %eax
0x00000000000fc51f:  pushl  %es
0x00000000000fc521:  push   %cs
0x00000000000fc522:  push   $0xc566
0x00000000000fc525:  addr32 pushw %es:0x24(%eax)
0x00000000000fc52a:  addr32 pushl %es:0x20(%eax)
0x00000000000fc530:  addr32 mov %es:0x4(%eax),%edi
0x00000000000fc536:  addr32 mov %es:0x8(%eax),%esi
0x00000000000fc53c:  addr32 mov %es:0xc(%eax),%ebp
0x00000000000fc542:  addr32 mov %es:0x10(%eax),%ebx
0x00000000000fc548:  addr32 mov %es:0x14(%eax),%edx
0x00000000000fc54e:  addr32 mov %es:0x18(%eax),%ecx
0x00000000000fc554:  addr32 mov %es:(%eax),%ds
0x00000000000fc558:  addr32 pushl %es:0x1c(%eax)
0x00000000000fc55e:  addr32 mov %es:0x2(%eax),%es
0x00000000000fc563:  pop    %eax
0x00000000000fc565:  iret  
0x00000000000fc566:  pushf 
0x00000000000fc567:  cli   


On 08/05/13 11:57, Paolo Bonzini wrote:
>> Paolo,
>>
>> The full command line is:
>> qemu-system-x86_64 -machine accel=kvm -m 1024m  \
>>  -net tap -net nic \
>>  -drive file=/dev/zpool/testsrv,index=0,cache=writethrough \
>>  -k en-us \
>>  -no-kvm-irqchip \
>>  -vga cirrus
>>
>> I've tried any combinations of "-net" options, but the result is always
>> the same. I think this somehow related to
>> http://article.gmane.org/gmane.comp.emulators.kvm.devel/109461, as
>> setting "emulate_invalid_guest_state=0" solves the problem However, I'm
>> not aware of any consequences of this change.
> Actually, the other bug involves sgabios and you are not using it.
> Please try executing the following commands from the monitor (you can
> use "-monitor stdio" to make cut-and-paste simpler):
>
>    x/8i \$pc
>    x/64b \$pc
>
> and include the output in the reply to this message.
>
> Thanks,
>
> Paolo

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