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Bug 1190573 - Host network is not available when Guest act as a netperf client testing 'UDP_STREAM' and another host act as a netserver
Summary: Host network is not available when Guest act as a netperf client testing 'UDP...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.2
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Michael S. Tsirkin
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 955540
Blocks: 965975
TreeView+ depends on / blocked
 
Reported: 2015-02-09 08:12 UTC by Qian Guo
Modified: 2018-02-07 23:22 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 955540
Environment:
Last Closed: 2018-02-07 23:22:01 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Comment 1 Qian Guo 2015-02-09 08:15:33 UTC 
Test with macvtap backend, if test with netperf from guest to an external host by UDP_STREAM protocol w/o sndbuf=1048576, the host network will access mess, high packet lose rate.

Since can hit such issue with qemu-kvm-rhev component, clone this bug.

I reproduce such issue with qemu-kvm-rhev-2.1.2-23.el7.x86_64, and host/guest kernel-3.10.0-229.el7.x86_64
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