Messages in this thread | | | Date | Thu, 28 Feb 2019 12:51:14 -0800 (PST) | Subject | Re: [PATCH] xen-netback: don't populate the hash cache on XenBus disconnect | From | David Miller <> |
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From: Igor Druzhinin <igor.druzhinin@citrix.com> Date: Thu, 28 Feb 2019 14:11:26 +0000
> Occasionally, during the disconnection procedure on XenBus which > includes hash cache deinitialization there might be some packets > still in-flight on other processors. Handling of these packets includes > hashing and hash cache population that finally results in hash cache > data structure corruption. > > In order to avoid this we prevent hashing of those packets if there > are no queues initialized. In that case RCU protection of queues guards > the hash cache as well. > > Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Applied and queued up for -stable, thanks.
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