Messages in this thread | | | Date | Thu, 27 Feb 2014 15:04:56 -0800 | Subject | Re: [PATCH v2] openvswitch: Disable bottom half when grabbing stats lock in userspace context | From | Pravin Shelar <> |
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On Thu, Feb 27, 2014 at 2:10 PM, Zoltan Kiss <zoltan.kiss@citrix.com> wrote: > The megaflow feature introduced per-CPU stats, and the new code did some > refactoring as well [1]. However the new functions doesn't disable bottom halves > when locking the stat, and as they can be called from userspace context, they > can be interrupted by netif_receive_skb. > > [1] e298e50570: openvswitch: Per cpu flow stats. > This bug is fixed in openvswitch repo by commit "datapath: Fix deadlock during stats update."
Thanks.
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