[Qemu-devel] Re: QEMU regressions ...

[Fabrice Bellard <fabrice.bellard@free.fr>]

It seems that the page table is remapped at an invalid address:

IN:
0x00100026:  movl   $0x30101000,%eax
0x0010002b:  movl   %eax,%cr3

I think more patches are needed to remap this kernel to a right address. 
BUT...

If you take my latest patches, you can use with QEMU any _unpatched_ 
linux kernel now :-)

Fabrice.

Herbert Poetzl wrote:
> On Sun, Oct 26, 2003 at 11:05:09PM +0100, Fabrice Bellard wrote:
> 
>>Hi,
>>
>>In the CVS version 'vl' was renamed to 'qemu'. Make install should 
>>install it. I will document all that as soon as the release is made (I 
>>cannot tell when - I need more time to work on it).
> 
> 
> hmm, okay obviously my fault, now 'qemu' binary seems to
> work, but the redhat kernel still segfaults/coredumps
> this is 2.4.18-27.7.x and I'm not able to get more than
> 
> # qemu-cvs-26.10.2003/i386/qemu -nographic -m 128 -snapshot -hda IMGs/TEST_32M.img -hdb IMGs/TEST_256M.img -kernel /usr/src/ALEXEY/kernel-2.4.18-27.7.x-P1/arch/i386/boot/bzImage -append "rw root=/dev/hda1"
> warning: could not open /dev/net/tun: no virtual network emulation
> Segmentation fault (core dumped)
> 
> works with vanilla 2.4.20,21,22,23-pre8
> any hints for that one?
> 
> TIA,
> Herbert
> 
> 
> 
>>Fabrice.
>>
>>Herbert Poetzl wrote:
>>
>>>Hi Fabrice!
>>>
>>>I'm using QEMU to do kernel development, and because
>>>one of the older redhat kernels, continuously core
>>>dups qemu, I thought, I'll check the cvs version ...
>>>
>>>the checkconfig works well, but then the trouble starts ...
>>>
>>> texi2html -monolithic -number qemu-doc.texi
>>> make: texi2html: Command not found
>>>
>>>I don't use texi2html, and I don't want the docu to
>>>be built, so I replace the command with a noop
>>>(actually touch qemu-doc.html)
>>>
>>>this seems to do the trick, as the compile runs, and
>>>completes without too many warnings ...
>>>
>>>then I wanted to test the vl command, but instead I 
>>>discovered that same command wasn't built ...
>>>
>>>I tried make vl, and ideed, something happened:
>>>
>>> gcc -Wall -O2 -g  -g  vl.c   -o vl
>>> vl.c:47:17: cpu.h: No such file or directory
>>> In file included from vl.c:49:
>>> thunk.h:24:20: config.h: No such file or directory
>>> make: *** [vl] Error 1
>>>
>>>did you abandon the vl utility? is there any 'good'
>>>reason for not using it? please advise ...
>>>
>>>TIA,
>>>Herbert
>>>
>>>
>>>
>>
> 
>