semantic: 0.587
device: 0.551
other: 0.543
network: 0.541
assembly: 0.524
instruction: 0.484
socket: 0.442
vnc: 0.404
graphic: 0.379
mistranslation: 0.335
boot: 0.314
KVM: 0.310

Floppy disks and network not working on NT 3.1 on Qemu 1.2 rc1

When I try to put Floppy IMG/IMA/VFD images on NT 3.1 when it is running on Qemu 1.2 rc, they are not recognized and the network is not working even though I set it correctly (especially the AMD PCnet adapter)
Here's some screenshot of the floppy error:
http://i49.tinypic.com/j77wcw.png

On Tue, Aug 28, 2012 at 10:29 AM, TC1988 <email address hidden> wrote:
> Public bug reported:
>
> When I try to put Floppy IMG/IMA/VFD images on NT 3.1 when it is running on Qemu 1.2 rc, they are not recognized and the network is not working even though I set it correctly (especially the AMD PCnet adapter)
> Here's some screenshot of the floppy error:
> http://i49.tinypic.com/j77wcw.png

Thanks for testing qemu 1.2-rc!

Can you confirm that both floppy and AMD PCnet worked in QEMU 1.1?

If so, could you please try running git-bisect(1) to identify which
commit introduced the breakage?

$ git clone git://git.qemu.org/qemu.git
$ cd qemu
$ git bisect start v1.2-rc1 v1.1.0

For more info on git-bisect(1):
http://git-scm.com/book/en/Git-Tools-Debugging-with-Git#Binary-Search
http://www.kernel.org/pub/software/scm/git/docs/git-bisect.html

Stefan


they worked in Qemu 1.1 and also in the previous versions and, by the way, I can't compile, I used a third party Win32 build of Qemu 1.2 rc1. :(

On Wed, Aug 29, 2012 at 1:53 PM, TC1988 <email address hidden> wrote:
> they worked in Qemu 1.1 and also in the previous versions and, by the
> way, I can't compile, I used a third party Win32 build of Qemu 1.2 rc1.
> :(

Have you tried any other guest operating systems?  If there is a more
readily available guest OS that shows the same bug it would allow
others to reproduce and debug this.

Stefan

> https://bugs.launchpad.net/bugs/1042654
>
> Title:
>   Floppy disks and network not working on NT 3.1 on Qemu 1.2 rc1
>
> Status in QEMU:
>  New
>
> Bug description:
>  When I try to put Floppy IMG/IMA/VFD images on NT 3.1 when it is running on Qemu 1.2 rc, they are not recognized and the network is not working even though I set it correctly (especially the AMD PCnet adapter)
>  Here's some screenshot of the floppy error:
>  http://i49.tinypic.com/j77wcw.png


it does not happen on NT 3.5, 3.51 or 4.0, only on 3.1.

Found someone who had a copy of NT 3.1 handy and he bisected it to:

commit 2fee00885a9ea4db69bbfc1ba8ccf95f2ae9aec6
Author: Pavel Hrdina <email address hidden>
Date:   Fri Jun 22 12:33:55 2012 +0200

    fdc: fix interrupt handling
    
    If you call the SENSE INTERRUPT STATUS command while there is no interrupt
    waiting you get as result unknown command.
    
    Fixed status0 register handling for read/write/format commands.
    
    Signed-off-by: Pavel Hrdina <email address hidden>
    Signed-off-by: Kevin Wolf <email address hidden>

nice :) but what about the network?

It appears that the fdc issue were addressed in this patch series:

 http://thread.gmane.org/gmane.comp.emulators.qemu/168836

Unfortunately the URL from comment #7 is dead nowadays ... has this fix been committed to the QEMU repository?

The floppy fix appears to be commit 34abf9a7 (contained in qemu 1.3).

I don't think anyone ever looked into the networking problem.

[Expired for QEMU because there has been no activity for 60 days.]