qemu problem

[Ganbold]

Carlos A. M. dos Santos wrote:
> On Sat, Sep 6, 2008 at 9:52 AM, Ganbold <ganbold at micom.mng.net> wrote:
>   
>> Hi,
>>
>> I have problem installing FreeBSD-7.0 using qemu in RELENG_7.
>> It starts installing FreeBSD, but it crashes and dumps core in different
>> places.
>>     
>
> It would be important to know what "different places" means. It is
> *during* installation or *after*  it?
>
>   

Both. It happens when it tries to copy something, or when it tries to 
compile something.
Yesterday it hanged and crashed when I tried to upgrade 7.0 to CURRENT 
(buildworld).

>> Did somebody experience this before?
>>
>> devil# uname -an
>> FreeBSD devil.micom.mng.net 7.0-STABLE FreeBSD 7.0-STABLE #9: Tue Aug 19
>> 18:35:02 ULAT 2008     tsgan at devil.micom.mng.net:/usr/obj/usr/src/sys/DEVIL
>>  i386
>> devil#
>>
>> devil# qemu -boot d -hda freebsd.img -m 256 -cdrom
>> ~tsgan/7.0-RELEASE-i386-disc1.iso -localtime -net nic -net tap smp 2
>> qemu: fatal: triple fault
>> EAX=c0bfe67c EBX=0000000c ECX=f001003f EDX=f001003f
>> ESI=c0bfe67c EDI=c24f7c60 EBP=c0bfe670 ESP=c0bfe5e0
>> EIP=c0a49004 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
>> ES =0028 00000000 ffffffff 00cf9300
>> CS =0020 00000000 ffffffff 00cf9b00
>> SS =0028 00000000 ffffffff 00cf9300
>> DS =0028 00000000 ffffffff 00cf9300
>> FS =0008 ffc00000 ffffffff ffcf93c0
>> GS =0028 00000000 ffffffff 00cf9300
>> LDT=0050 c0bfef20 00000087 c000e2bf
>> TR =0060 c0bff1c0 00000067 c00089bf
>> GDT=     c0bfe5a0 00000097
>> IDT=     c0c00240 000007ff
>> CR0=e005003b CR2=f0010043 CR3=0141e000 CR4=00000690
>> CCS=c0bfe67c CCD=c0bfe6e8 CCO=ADDB   FCW=127f FSW=0020 [ST=0] FTW=00
>> MXCSR=00001f80
>> FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
>> FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
>> FPR4=ccccccccccc40000 3ffe FPR5=8000000000000000 3ffe
>> FPR6=e670d1fa33376800 3ffe FPR7=8e670d1fa3337800 4002
>> XMM00=00000000000000000000000000000000
>> XMM01=00000000000000000000000000000000
>> XMM02=00000000000000000000000000000000
>> XMM03=00000000000000000000000000000000
>> XMM04=00000000000000000000000000000000
>> XMM05=00000000000000000000000000000000
>> XMM06=00000000000000000000000000000000
>> XMM07=00000000000000000000000000000000
>> Abort (core dumped)
>>     
>
> QEMU treats triple faults generated by the guest OS as fatal errors,
> so it aborts execution and dumps core. In my opinion this is a too
> self-punishing behavior that chould be replaced by a less harmful VM
> restart. Triple faults are in fact fatal errors, so QEMU is correct,
> in theory. In practice, however, some operating systems generate
> triple faults on purpose in order to force a system reboot. The Linux
> kernel used to do this. It appears that the FreeBSD boot loader does
> it as well, so if you start FreeBSD and choose option 7 in the boot
> prompt you will ever crash QEMU.
>
>   
>> %pkg_info|grep qemu
>> kqemu-kmod-1.3.0.p11_9 Kernel Accelerator for QEMU CPU Emulator
>> qemu-0.9.1_9        QEMU CPU Emulator
>> %kldstat
>> Id Refs Address    Size     Name
>> 1   22 0xc0400000 701ae4   kernel
>> 2    1 0xc0b02000 5844     if_tap.ko
>> 3    1 0xc0b08000 15524    snd_hda.ko
>> 4    2 0xc0b1e000 52a08    sound.ko
>> 5    2 0xc0b71000 10ebc    drm.ko
>> 6    1 0xc0b82000 71c4     i915.ko
>> 7    1 0xc0b8a000 1ff24    kqemu.ko
>> 8    1 0xc0baa000 b8c8     aio.ko
>> 9    1 0xc0bb6000 6b3d0    acpi.ko
>> 10    1 0xc4340000 9000     if_bridge.ko
>> 11    1 0xc4349000 6000     bridgestp.ko
>> 12    2 0xc44ac000 d000     ipfw.ko
>> 13    1 0xc4500000 4000     ipdivert.ko
>> 14    1 0xc4526000 22000    linux.ko
>> 15    1 0xc45a0000 e000     fuse.ko
>>     
>
>