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

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Regards, Maxim Burgerhout maxim(a)wzzrd.com ---------------- EB11 5E56 E648 9D99 E8EF 05FB C513 6FD4 1302 B48A On Wed, Sep 19, 2012 at 2:32 PM, Karli Sj=C3=B6berg wrote: > Hey all, > > I have noticed that using the virtio serial driver in Windows 7 and > 2008R2 guests stalls the guests with 100% load on guest CPU. This happens > both on guests that have been active for a while without the driver, and > then you try loading it, or with installing new guests and loading this > particular driver in the windows installer. I have downloaded the > virtio-win-0.1.30.iso from linux-kvm ftp. Has anyone else noticed this in > oVirt-3.1? I haven=C2=B4t been able to test this outside of oVirt, direct= ly with > KVM, so I don=C2=B4t know if it=C2=B4s an oVirt or KVM specific issue, I= =C2=B4m just > letting everyone know this has happened, and if ovirt-engine is supposed = to > use this serial interface to "talk" with the guest back and forth; that= =C2=B4s > going to hard to do if it=C2=B4s stalled:) > > > Med V=C3=A4nliga H=C3=A4lsningar > > -------------------------------------------------------------------------= ------ > Karli Sj=C3=B6berg > Swedish University of Agricultural Sciences > Box 7079 (Visiting Address Kron=C3=A5sv=C3=A4gen 8) > S-750 07 Uppsala, Sweden > Phone: +46-(0)18-67 15 66 > karli.sjoberg(a)slu.se > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > --===============2616529490810797072== Content-Type: text/html MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="attachment.html" SSYjMzk7dmUgc2VlbiB0aGlzIGhhcHBlbiBvbiBXaW5kb3dzIFZNJiMzOTtzIG9uIHBsYWluIEtW TSBvbiBGZWRvcmEgYXMgd2VsbC48YnI+PGJyPlJlZ2FyZHMsPGJyPjxiciBjbGVhcj0iYWxsIj5N YXhpbSBCdXJnZXJob3V0PGJyPjxhIGhyZWY9Im1haWx0bzptYXhpbUB3enpyZC5jb20iIHRhcmdl dD0iX2JsYW5rIj5tYXhpbUB3enpyZC5jb208L2E+PGJyPi0tLS0tLS0tLS0tLS0tLS08YnI+CkVC MTEgNUU1NiBFNjQ4IDlEOTkgRThFRiAwNUZCIEM1MTMgNkZENCAxMzAyIEI0OEE8YnI+PGJyPjxi cj4KPGJyPjxicj48ZGl2IGNsYXNzPSJnbWFpbF9xdW90ZSI+T24gV2VkLCBTZXAgMTksIDIwMTIg YXQgMjozMiBQTSwgS2FybGkgU2rDtmJlcmcgPHNwYW4gZGlyPSJsdHIiPiZsdDs8YSBocmVmPSJt YWlsdG86S2FybGkuU2pvYmVyZ0BzbHUuc2UiIHRhcmdldD0iX2JsYW5rIj5LYXJsaS5Tam9iZXJn QHNsdS5zZTwvYT4mZ3Q7PC9zcGFuPiB3cm90ZTo8YnI+PGJsb2NrcXVvdGUgY2xhc3M9ImdtYWls X3F1b3RlIiBzdHlsZT0ibWFyZ2luOjAgMCAwIC44ZXg7Ym9yZGVyLWxlZnQ6MXB4ICNjY2Mgc29s aWQ7cGFkZGluZy1sZWZ0OjFleCI+CgoKCgo8ZGl2IHN0eWxlPSJ3b3JkLXdyYXA6YnJlYWstd29y ZCI+CkhleSBhbGwsCjxkaXY+PGJyPgo8L2Rpdj4KPGRpdj5JIGhhdmUgbm90aWNlZCB0aGF0IHVz aW5nIHRoZSB2aXJ0aW8gc2VyaWFsIGRyaXZlciBpbiBXaW5kb3dzIDcgYW5kIDIwMDhSMiBndWVz dHMgc3RhbGxzIHRoZSBndWVzdHMgd2l0aCAxMDAlIGxvYWQgb24gZ3Vlc3QgQ1BVLiBUaGlzIGhh cHBlbnMgYm90aCBvbiBndWVzdHMgdGhhdCBoYXZlIGJlZW4gYWN0aXZlIGZvciBhIHdoaWxlIHdp dGhvdXQgdGhlIGRyaXZlciwgYW5kIHRoZW4geW91IHRyeSBsb2FkaW5nIGl0LCBvciB3aXRoIGlu c3RhbGxpbmcKIG5ldyBndWVzdHMgYW5kIGxvYWRpbmcgdGhpcyBwYXJ0aWN1bGFyIGRyaXZlciBp biB0aGUgd2luZG93cyBpbnN0YWxsZXIuIEkgaGF2ZSBkb3dubG9hZGVkIHRoZSB2aXJ0aW8td2lu LTAuMS4zMC5pc28gZnJvbSBsaW51eC1rdm0gZnRwLiBIYXMgYW55b25lIGVsc2Ugbm90aWNlZCB0 aGlzIGluIG9WaXJ0LTMuMT8gSSBoYXZlbsK0dCBiZWVuIGFibGUgdG8gdGVzdCB0aGlzIG91dHNp ZGUgb2Ygb1ZpcnQsIGRpcmVjdGx5IHdpdGggS1ZNLCBzbyBJIGRvbsK0dAoga25vdyBpZiBpdMK0 cyBhbiBvVmlydCBvciBLVk0gc3BlY2lmaWMgaXNzdWUsIEnCtG0ganVzdCBsZXR0aW5nIGV2ZXJ5 b25lIGtub3cgdGhpcyBoYXMgaGFwcGVuZWQsIGFuZCBpZiBvdmlydC1lbmdpbmUgaXMgc3VwcG9z ZWQgdG8gdXNlIHRoaXMgc2VyaWFsIGludGVyZmFjZSB0byAmcXVvdDt0YWxrJnF1b3Q7IHdpdGgg dGhlIGd1ZXN0IGJhY2sgYW5kIGZvcnRoOyB0aGF0wrRzIGdvaW5nIHRvIGhhcmQgdG8gZG8gaWYg aXTCtHMgc3RhbGxlZDopwqA8YnI+Cgo8ZGl2PjxzcGFuIHN0eWxlPSJ0ZXh0LWluZGVudDowcHg7 bGV0dGVyLXNwYWNpbmc6bm9ybWFsO2ZvbnQtdmFyaWFudDpub3JtYWw7dGV4dC1hbGlnbjotd2Vi a2l0LWF1dG87Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2xpbmUtaGVpZ2h0 Om5vcm1hbDtib3JkZXItY29sbGFwc2U6c2VwYXJhdGU7dGV4dC10cmFuc2Zvcm06bm9uZTtmb250 LXNpemU6bWVkaXVtO3doaXRlLXNwYWNlOm5vcm1hbDtmb250LWZhbWlseTpIZWx2ZXRpY2E7d29y ZC1zcGFjaW5nOjBweCI+CjxkaXY+PGJyPgo8YnI+CjwvZGl2Pgo8ZGl2Pk1lZCBWw6RubGlnYSBI w6Rsc25pbmdhcjxicj4KLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLTxicj4KS2FybGkgU2rDtmJlcmc8 YnI+ClN3ZWRpc2ggVW5pdmVyc2l0eSBvZiBBZ3JpY3VsdHVyYWwgU2NpZW5jZXM8YnI+CkJveCA3 MDc5IChWaXNpdGluZyBBZGRyZXNzIEtyb27DpXN2w6RnZW4gOCk8YnI+ClMtNzUwIDA3IFVwcHNh bGEsIFN3ZWRlbjxicj4KUGhvbmU6IMKgPGEgaHJlZj0idGVsOiUyQjQ2LSUyODAlMjkxOC02NyUy MDE1JTIwNjYiIHZhbHVlPSIrNDYxODY3MTU2NiIgdGFyZ2V0PSJfYmxhbmsiPis0Ni0oMCkxOC02 NyAxNSA2NjwvYT48L2Rpdj4KPGRpdj48YSBocmVmPSJtYWlsdG86a2FybGkuc2pvYmVyZ0BhZG0u c2x1LnNlIiB0YXJnZXQ9Il9ibGFuayI+a2FybGkuc2pvYmVyZ0BzbHUuc2U8L2E+PC9kaXY+Cjwv c3Bhbj48L2Rpdj4KPGJyPgo8L2Rpdj4KPC9kaXY+Cgo8YnI+X19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX188YnI+ClVzZXJzIG1haWxpbmcgbGlzdDxicj4KPGEg aHJlZj0ibWFpbHRvOlVzZXJzQG92aXJ0Lm9yZyI+VXNlcnNAb3ZpcnQub3JnPC9hPjxicj4KPGEg aHJlZj0iaHR0cDovL2xpc3RzLm92aXJ0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3VzZXJzIiB0YXJn ZXQ9Il9ibGFuayI+aHR0cDovL2xpc3RzLm92aXJ0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3VzZXJz PC9hPjxicj4KPGJyPjwvYmxvY2txdW90ZT48L2Rpdj48YnI+Cg== --===============2616529490810797072==--