** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Changed in: linux (Ubuntu)
       Status: New => Triaged

** Changed in: linux (Ubuntu)
     Assignee: Taco Screen team (taco-screen-team) => Canonical Kernel Team 

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  Ubuntu 16.10 KVM SRIOV: if enable sriov while ping flood is running
  ping will stop working

Status in linux package in Ubuntu:

Bug description:
  ---Problem Description---
  If I enable SRIOV in a Mellanox CX4 card while a PF interface is doing 
something like a ping flood. The PF interface will stop pinging. 
  We found a small window were MMIO are bein g disabled during pci_enable_sriov 
is called. 
  ---uname output---
  ---Additional Hardware Info---
  It needs a Mellanox CX4 SRIOV capable to recreate this issue 

  Machine Type = P8 
  ---Steps to Reproduce---
   just configure the IP address of PF interface and start like a ping flood to 
that interface.
  then do this echo to enable SRIOV on the PF. 
  echo 8 > /sys/class/net/enP1p1s0f0/device/sriov_numvfs
  Then you will notice the ping flood will stop. 
  A patch that will fix this issue was sent for review:

To manage notifications about this bug go to:

Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to