[Qemu-devel] Windows 2000 installed without a problem

[Qemu-devel] Windows 2000 installed without a problem

[Mike Nordell]

Using "almost" CVS QEMU on Win32, installing NT5sp4 from a CD image, with
"only" 64 MB of memory given to the guest, but disabling both NE2k and SB16
by means of setting nb_nics=0 before the "nb_nics1 = nb_nics;" at the end of
pc_init() in pc.c, and disabling the calls to AUD_init() and SB16_init(),
I've managed to install NT5sp4 (a "slipstreamed" to sp4 image) without too
much problems.

What I believe is worth noting is that I haven't seen a single gfx "glitch".
DTC and failed to install, and some COM component failed to register, but
that might be due to lack of a NIC (combined with another missing piece in
the emulation, that MS' GUID generation uses in absence of a NIC), but
besides that everything else seemingly worked like a charm.

I therefore can with some certainty say that either the SB16 or the NE2k
code (with the patch from Renzo applied) is a source of bugs - it probably
overwrites memory it doesn't own. As the SB16 code has already read memory
it didn't own, that'd be my first suspect.

Could someone else that's been experiencing spurious guest-crashes, or
installation failures, try to do the same - disable NE2k, OSS and SB16 as I
outlined, and report failure or success? Both Windows and GNU/Linux hosts
would probably be preferred.


/Mike

Re: [Qemu-devel] Windows 2000 installed without a problem

[Jean-Michel POURE]

Le vendredi 16 Avril 2004 09:56, Mike Nordell a écrit :
> I therefore can with some certainty say that either the SB16 or the NE2k
> code (with the patch from Renzo applied) is a source of bugs

Could it be possible to disable them from the command line (qemu 
--without-sb16 --without-ne2k). Therefore, we would be able to make 
comparisons more easily.

Cheers,
Jean-Michel

Re: [Qemu-devel] Windows 2000 installed without a problem

[Jean-Michel POURE]

Le vendredi 16 Avril 2004 09:56, Mike Nordell a écrit :
> by means of setting nb_nics=0 before the "nb_nics1 = nb_nics;" at the end
> of pc_init() in pc.c,

It is the same as "qemu -nics 0"?
Cheers, Jean-Michel

Re: [Qemu-devel] Windows 2000 installed without a problem

[Mike Nordell]

Jean-Michel POURE wrote:

> Le vendredi 16 Avril 2004 09:56, Mike Nordell a écrit :
> > by means of setting nb_nics=0 before the "nb_nics1 = nb_nics;" at
> > the end of pc_init() in pc.c,
>
> It is the same as "qemu -nics 0"?

Right you are. Too much debugging seemingly can make one take the more
drastic measures to disable some things. In my defense I can say that
disabling AUD_init and SB16_init (which was required to be done by modifying
source) was just 15 lines away.

I agree with the suggestion of a command line argument to disable SB16
completely, even that I disagree with giving it two consecutive leading
dashes. One is IMHO more than enough. :-)

/Mike

Re: [Qemu-devel] Windows 2000 installed without a problem

[Jean-Michel POURE]

Le vendredi 16 Avril 2004 09:56, Mike Nordell a écrit :
> Could someone else that's been experiencing spurious guest-crashes, or
> installation failures, try to do the same - disable NE2k, OSS and SB16 as I
> outlined, and report failure or success? Both Windows and GNU/Linux hosts
> would probably be preferred.

Dear Mike and Mark,

Thank you for the information. I disabled both SB16 and network cards and 
applied Mark mouse patch. Windows 2000 now boots and the mouse is usable.

Qemu rocks!

Cheers,
Jean-Michel

Re: [Qemu-devel] Windows 2000 installed without a problem (more information)

[Jean-Michel POURE]

> Dear Mike and Mark,
> Thank you for the information. I disabled both SB16 and network cards and
> applied Mark mouse patch. Windows 2000 now boots and the mouse is usable.
> Qemu rocks!

Dear all,

I also recompiled Qemu with network (including Renzo patch), disabled SB16, 
applied Mouse patch (Mark) and ... had the great pleasure to be able to use 
Windows2k in a normal environment with network. These are great news.

Cheers,
Jean-Michel

Re: [Qemu-devel] Windows 2000 installed without a problem (more information)

[Jean-Michel POURE]

> I also recompiled Qemu with network (including Renzo patch), disabled SB16,
> applied Mouse patch (Mark) and ... had the great pleasure to be able to use
> Windows2k in a normal environment with network. These are great news.

Sorry if I answer myself and fill the list with non-technical remarks. Now 
that I can start Win2k and move the mouse, I can only notice several SEGV, 
even when disabling network and SB16. For example, even when starting in 
rescue mode, at some point explorer.exe stops working.

Cheers,
Jean-Michel