From Karli.Sjoberg at slu.se Wed Sep 19 08:32:16 2012 Content-Type: multipart/mixed; boundary="===============8011723917001276181==" MIME-Version: 1.0 From: =?utf-8?q?Karli_Sj=C3=B6berg_=3CKarli=2ESjoberg_at_slu=2Ese=3E?= To: users at ovirt.org Subject: [Users] Using vioserial in Win7/2008R2 stalls the guest Date: Wed, 19 Sep 2012 12:32:12 +0000 Message-ID: <687C49F8-D246-4085-8787-7C310DEFB7B0@slu.se> --===============8011723917001276181== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable --_000_687C49F8D246408587877C310DEFB7B0sluse_ Content-Type: text/plain; charset=3D"iso-8859-1" Content-Transfer-Encoding: quoted-printable Hey all, I have noticed that using the virtio serial driver in Windows 7 and 2008R2 = =3D guests stalls the guests with 100% load on guest CPU. This happens both on = =3D guests that have been active for a while without the driver, and then you t= =3D ry loading it, or with installing new guests and loading this particular dr= =3D iver in the windows installer. I have downloaded the virtio-win-0.1.30.iso = =3D from linux-kvm ftp. Has anyone else noticed this in oVirt-3.1? I haven=3DB4= t =3D been able to test this outside of oVirt, directly with KVM, so I don=3DB4t = kn=3D ow if it=3DB4s an oVirt or KVM specific issue, I=3DB4m just letting everyon= e kn=3D ow this has happened, and if ovirt-engine is supposed to use this serial in= =3D terface to "talk" with the guest back and forth; that=3DB4s going to hard t= o =3D do if it=3DB4s stalled:) Med V=3DE4nliga H=3DE4lsningar ---------------------------------------------------------------------------= =3D ---- Karli Sj=3DF6berg Swedish University of Agricultural Sciences Box 7079 (Visiting Address Kron=3DE5sv=3DE4gen 8) S-750 07 Uppsala, Sweden Phone: +46-(0)18-67 15 66 karli.sjoberg(a)slu.se --_000_687C49F8D246408587877C310DEFB7B0sluse_ Content-Type: text/html; charset=3D"iso-8859-1" Content-ID: <2BE03B5B8A02CE45AD47209BF97BB151(a)ad.slu.se> Content-Transfer-Encoding: quoted-printable Hey all,

I have noticed that using the virtio serial driver in Windows 7 and 20= =3D 08R2 guests stalls the guests with 100% load on guest CPU. This happens bot= =3D h on guests that have been active for a while without the driver, and then = =3D you try loading it, or with installing new guests and loading this particular driver in the windows installer. I = =3D have downloaded the virtio-win-0.1.30.iso from linux-kvm ftp. Has anyone el= =3D se noticed this in oVirt-3.1? I haven=3DB4t been able to test this outside = of=3D oVirt, directly with KVM, so I don=3DB4t know if it=3DB4s an oVirt or KVM specific issue, I=3DB4m just letting ever= yone=3D know this has happened, and if ovirt-engine is supposed to use this serial= =3D interface to "talk" with the guest back and forth; that=3DB4s go= in=3D g to hard to do if it=3DB4s stalled:) 


Med V=3DE4nliga H=3DE4lsningar
---------------------------------------------------------------------------= =3D ----
Karli Sj=3DF6berg
Swedish University of Agricultural Sciences
Box 7079 (Visiting Address Kron=3DE5sv=3DE4gen 8)
S-750 07 Uppsala, Sweden
Phone:  +46-(0)18-67 15 66
karli.sjoberg(a)slu.se=

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