On Fri, Mar 11, 2016 at 10:51:33PM -0000, Vincent JARDIN wrote: > for tracking, > > http://git.qemu.org/?p=qemu.git;a=patch;h=5669655aafdb88a8797c74a989dd0c0ebb1349fa > > -- > You received this bug notification because you are a member of qemu- > devel-ml, which is subscribed to QEMU. > https://bugs.launchpad.net/bugs/1556306 > > Title: > vhost-user: qemu stops processing packets under high load of traffic > > Status in QEMU: > New
I presume you'll also close this bu at some point? It's fixed in upstream QEMU. > Bug description: > Description of problem: > - qemu socket becomes full, causing qemu to send incomplete > SET_VRING_CALL messages to vhost-user backend (without proper fd set in > ancillary data). > - after some time, some interrupts are lost, causing the VM to stop > transmitting packets. > > How reproducible: > Run a stress tests of a vhost-user interface using an UDP > traffic generator. Traffic generator (IXIA) was connected to 2 physical > ports that are in turn connected to 2 virtio ports through a linux bridge, VM > (running linux) doing routing to forward packets between the 2 virtio ports. > When traffic reaches high pps rates of small packets, > > Actual results: > - VM stop transmitting packets > > Expected results: > - VM should never stop transmitting packets > > Additional info: > We do propose a fix at: > http://lists.nongnu.org/archive/html/qemu-devel/2015-12/msg00652.html > > To manage notifications about this bug go to: > https://bugs.launchpad.net/qemu/+bug/1556306/+subscriptions
