virt August 2016

virt@lists.centos.org

19 participants
12 discussions

Lost a NIC on start
by Günther J. Niederwimmer 04 Aug '16

04 Aug '16

Hello, CentOS 7.2 I have a big Problem with libvirt or KVM, my Virtual Hosts lost sometime a NIC on start. I have configured 4 NIC on the Virtual host two passthru and 2 virtual, on start most time i lost a virtual NIC :-( So after a reboot I have to check always is all running and working.? with a "virsh reboot xxxx" in the most time it come back ? Have any a Idea why ? I found nothing in the Logs :-(. -- mit freundlichen Grüßen / best regards, Günther J. Niederwimmer

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Why does AWS instance always lost around 500MB memory
by Dũng Trần-Dương 02 Aug '16

02 Aug '16

Hi, I launched an AWS instance `t2.medium` (use CentOS 7 image "ami-7abd0209", product code: https://aws.amazon.com/marketplace/pp/B00O7WM7QW), which is supposed to have 4GB Memory in total, but turn out it is only "3.5GB". ``` $ free -h total used free shared buff/cache available Mem: 3.5G 441M 1.4G 16M 1.6G 2.7G Swap: 0B 0B 0B ``` It does not happen to AWS Ubuntu 16.04. ``` $ free -h total used free shared buff/cache available Mem: 3.9G 49M 3.3G 5.5M 518M 3.7G Swap: 0B 0B 0B ``` This seems to happen to all AWS CentOS image, regardless which instance type it is.

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virt August 2016