Re: Help with Windows XP in qemu-system-i386

Re: Help with Windows XP in qemu-system-i386

[Programmingkid]

> On Feb 5, 2021, at 3:49 PM, Michael S. Tsirkin <mst@redhat.com> wrote:
> 
> On Fri, Feb 05, 2021 at 03:25:00PM -0500, Programmingkid wrote:
>> Hi, I'm noticing that my Windows XP Service Pack 3 VM is causing qemu-system-i386 to experience 100% host cpu usage even when the guest is at idle. I was wondering if you are seeing this issue as well on any version of Windows guest? Windows 2000 doesn't seem to have this problem so I'm wondering if this is a bug with QEMU or a problem with my VM. Any help would be appreciated.
>> 
>> Thank you.
> 
> Just tried an xp guest, stays below 10% for me. Suggest discussing this
> on the mailing list.

Thank you for the reply. Which service pack is your Windows XP VM using?

Re: Help with Windows XP in qemu-system-i386

[Michael S. Tsirkin]

On Fri, Feb 05, 2021 at 04:08:26PM -0500, Programmingkid wrote:
> 
> 
> > On Feb 5, 2021, at 3:49 PM, Michael S. Tsirkin <mst@redhat.com> wrote:
> > 
> > On Fri, Feb 05, 2021 at 03:25:00PM -0500, Programmingkid wrote:
> >> Hi, I'm noticing that my Windows XP Service Pack 3 VM is causing qemu-system-i386 to experience 100% host cpu usage even when the guest is at idle. I was wondering if you are seeing this issue as well on any version of Windows guest? Windows 2000 doesn't seem to have this problem so I'm wondering if this is a bug with QEMU or a problem with my VM. Any help would be appreciated.
> >> 
> >> Thank you.
> > 
> > Just tried an xp guest, stays below 10% for me. Suggest discussing this
> > on the mailing list.
> 
> Thank you for the reply. Which service pack is your Windows XP VM using?

SP3

Re: Help with Windows XP in qemu-system-i386

[Programmingkid]

> On Feb 5, 2021, at 4:08 PM, Programmingkid <programmingkidx@gmail.com> wrote:
> 
> 
> 
>> On Feb 5, 2021, at 3:49 PM, Michael S. Tsirkin <mst@redhat.com> wrote:
>> 
>> On Fri, Feb 05, 2021 at 03:25:00PM -0500, Programmingkid wrote:
>>> Hi, I'm noticing that my Windows XP Service Pack 3 VM is causing qemu-system-i386 to experience 100% host cpu usage even when the guest is at idle. I was wondering if you are seeing this issue as well on any version of Windows guest? Windows 2000 doesn't seem to have this problem so I'm wondering if this is a bug with QEMU or a problem with my VM. Any help would be appreciated.
>>> 
>>> Thank you.
>> 
>> Just tried an xp guest, stays below 10% for me. Suggest discussing this
>> on the mailing list.
> 
> Thank you for the reply. Which service pack is your Windows XP VM using?
> 

Hi Michael. I noticed what was the cause of Windows XP using so much CPU time when idle. When I used the '-smp 4' option Windows made a change then restarted. After restarting the screen was black. Does this happen to you? Please make a backup of any image file you have before experimenting. Windows 7 doesn't have this problem. I am qemu-system-i386 at commit 1214d55d1c41fbab3a9973a05085b8760647e411.

Removing the '-smp 2' option does make Windows XP start up again, but the high host CPU usage at idle remains...

I reported this bug here:
https://bugs.launchpad.net/qemu/+bug/1914294