Re: [Qemu-devel] qemu under x86_64: grub segfault, ld-linux.so segfault, lost ticks

[Fabrice Bellard <fabrice@bellard.org>]

Hi,

You can use gdb in the virtual machine to see where are the segmentation 
faults and provide a register dump and a short disassembly output.

Regards,

Fabrice.

J M Cerqueira Esteves wrote:
> As I said before, under
> 
>  Host CPU: AMD Athlon 64 3500+ (machine: HP dx5150 MT)
>  Host operating system: Ubuntu 6.06 LTS
>  Host kernel: one of the Ubuntu pre-packaged ones,
>               2.6.15-26-amd64-k8 (SMP PREEMPT)
>  QEMU: 0.8.2, configured with -cc=gcc-3.4 --enable-alsa
>  kqemu: 1.3.0pre9
> 
> I couldn't install Debian amd64 testing (etch)
> in a vm because of an "Unexpected exception 0x0d"
> on the host, crashing qemu.
> 
> I'm able to install If I *disable* use of kqemu, but:
> 
> - grub segfaults, failing to install the boot loader on the guest hard
>   disk (previously also noticed this installing a kubuntu guest),
>   so I used lilo;
> 
> - installing new Debian amd64 kernel packages seems to work, except
>   that I get an error like this on the console:
>      ld-linux.so.2[5145]: segfault at 00000000ffffbffc rip
>        0000000056565019 rsp ffff8100ffffc000 error 6
> 
> - I get warnings about lost ticks and the clock runs too fast:
> 
>       warning: many lost ticks
>       Your time source seems to be instable or some driver is hogging
>       interrupts
> 
> 
> Best regards
>                          J Esteves
>