Re: [Qemu-discuss] How to have dedicated IP for guest (that can't be used by the host)?

2015-07-05 Thread Васил Рангелов
Thank you for the answer, but... How would I do that on Windows? I tried installing the "tap" driver from https://openvpn.net/index.php/download/community-downloads.html (NDIS6, since I use Windows Server 2008 R2 == Windows 7), and then I assigned it an IP (192.168.200.1/24), but if I then try

[Qemu-discuss] Guest has high iowait cpu usage but HV has no iowait

2015-07-05 Thread Chengyuan Li
Hi, I'm running a high I/O bound application in the KVM/QEMU VM, and I can see high %wa cpu usage in the guest. %Cpu(s): 14.5 us, 11.3 sy, 0.0 ni, 36.2 id, 37.0 wa, 1.0 hi, 0.0 si, 0.0 st But %wa in the HV is always 0. %Cpu(s): 9.4 us, 1.5 sy, 0.0 ni, 89.0 id, 0.0 wa, 0.0 hi, 0.1 si, 0

Re: [Qemu-discuss] kvm_irqchip_commit_routes: Assertion `ret == 0' failed

2015-07-05 Thread Chengyuan Li
This patch should be able to fix this bug. http://lists.gnu.org/archive/html/qemu-devel/2015-01/msg00822.html From: chengyua...@hotmail.com To: qemu-discuss@nongnu.org Subject: kvm_irqchip_commit_routes: Assertion `ret == 0' failed Date: Tue, 16 Jun 2015 21:59:10 +0800 Hi, Several my QEMU inst

[Qemu-discuss] high IRQ-TLB generates network interruptions

2015-07-05 Thread gustavo panizzo (gfa)
Hello we are having a problem in our host, all the vm running on them suddenly, and for some seconds, lost network connectivity. the root cause appears to be the increase of irb-tlb from low values (less than 20) to more than >100k, that spike only last for some seconds then everything goes