KVM-88 broke floppy controller

2009-07-22 Thread Alexey Eromenko

Hi All !

I found a new bug in Floppy controller -- usually I report bugs to Avi,
but since he is not here, I decided to report to mailing list.

This bugs prevents Windows booting with Floppy inserted.

Qemu command to reproduce:
./qemu-kvm -fda myfloppy.vfd -cdrom /isos/windows/Windows2003_r2_VLK.iso -boot d

It won't boot from CD-ROM (black screen), and will stuck during booting from 
hard disk.
It affects both Intel  AMD systems, but not Qemu emulator. (-no-kvm works)

I did bisect and found bug in KVM userspace git:

kvm-87-239-gbb598da ( commit bb598da496c040d42dde564bd8ace181be52293e by 
Glauber Costa)
 on 6.7.2009.

Can you look at it please ?

-Alexey Eromenko
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


Re: KVM-88 broke floppy controller

2009-07-22 Thread Gleb Natapov
On Wed, Jul 22, 2009 at 07:43:51AM -0400, Alexey Eromenko wrote:
 
 Hi All !
 
 I found a new bug in Floppy controller -- usually I report bugs to Avi,
 but since he is not here, I decided to report to mailing list.
 
 This bugs prevents Windows booting with Floppy inserted.
 
 Qemu command to reproduce:
 ./qemu-kvm -fda myfloppy.vfd -cdrom /isos/windows/Windows2003_r2_VLK.iso 
 -boot d
 
 It won't boot from CD-ROM (black screen), and will stuck during booting from 
 hard disk.
 It affects both Intel  AMD systems, but not Qemu emulator. (-no-kvm works)
 
 I did bisect and found bug in KVM userspace git:
 
 kvm-87-239-gbb598da ( commit bb598da496c040d42dde564bd8ace181be52293e by 
 Glauber Costa)
  on 6.7.2009.
 
 Can you look at it please ?
 
Can you try this patch?
http://patchwork.kernel.org/patch/36661/

--
Gleb.
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


Re: KVM-88 broke floppy controller

2009-07-22 Thread Alexey Eromenko

- Gleb Natapov g...@redhat.com wrote:

 On Wed, Jul 22, 2009 at 07:43:51AM -0400, Alexey Eromenko wrote:
  
  Hi All !
  
  I found a new bug in Floppy controller -- usually I report bugs to
 Avi,
  but since he is not here, I decided to report to mailing list.
  
  This bugs prevents Windows booting with Floppy inserted.
  
  Qemu command to reproduce:
  ./qemu-kvm -fda myfloppy.vfd -cdrom
 /isos/windows/Windows2003_r2_VLK.iso -boot d
  
  It won't boot from CD-ROM (black screen), and will stuck during
 booting from hard disk.
  It affects both Intel  AMD systems, but not Qemu emulator. (-no-kvm
 works)
  
  I did bisect and found bug in KVM userspace git:
  
  kvm-87-239-gbb598da ( commit
 bb598da496c040d42dde564bd8ace181be52293e by Glauber Costa)
   on 6.7.2009.
  
  Can you look at it please ?
  
 Can you try this patch?
 http://patchwork.kernel.org/patch/36661/
 
Thanks Gleb !

This indeed fixed my problem !

-Alexey
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html