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Re: [Xen-devel] HVM domU with sdl not scheduled after vt-switch


  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxx>
  • Date: Thu, 28 Apr 2011 09:39:13 +0200
  • Cc: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
  • Delivery-date: Thu, 28 Apr 2011 00:39:57 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Am 27.04.2011 schrieb "George Dunlap <George.Dunlap@xxxxxxxxxxxxx>":

> Hmm, I bet qemu has crashed -- do a "ps ax | grep qemu" and see if

> it's still running.


Thanks for the hint but qemu is waiting on a select() call and does nothing

when switched away from the virtual screen.


Dietmar.



> If you're keen, you could run gdb on the core file and see where it's

> crashing. If there's no corefile, do probably need to do "ulimit -c

> unlimited" first.

>

> -George

>

> On Wed, Apr 27, 2011 at 12:27 PM, Dietmar Hahn

> <dietmar.hahn@xxxxxxxxxxxxxx> wrote:

> > Hi,

> >

> > I tried a Windows domU with sdl switched on and when I switch in dom0 to

> >

> > another virtual console (the ctrl-alt-f? thing) the Windows domU loses its

> > cpu.

> >

> > # xm list

> >

> > Name ID Mem VCPUs State Time(s)

> >

> > myWindows 6 1024 1 ------ 73.5

> >

> > The domU gets scheduled again after switching back to the virtual screen.

> >

> > This is not the case when using vnc.

> >

> > What is the cause and where in the source can I find the implementation?

> >

> > Thanks!

> >

> > Dietmar.

> >


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