From: David Miller <davem@davemloft.net>
To: tushar.n.dave@oracle.com
Cc: brouer@redhat.com, edumazet@google.com, netdev@vger.kernel.org,
sowmini.varadhan@oracle.com
Subject: Re: [PATCH v2] netpoll: Check for skb->queue_mapping
Date: Fri, 21 Apr 2017 15:45:54 -0400 (EDT) [thread overview]
Message-ID: <20170421.154554.219059312422333404.davem@davemloft.net> (raw)
In-Reply-To: <1492729051-4269-1-git-send-email-tushar.n.dave@oracle.com>
From: Tushar Dave <tushar.n.dave@oracle.com>
Date: Thu, 20 Apr 2017 15:57:31 -0700
> Reducing real_num_tx_queues needs to be in sync with skb queue_mapping
> otherwise skbs with queue_mapping greater than real_num_tx_queues
> can be sent to the underlying driver and can result in kernel panic.
>
> One such event is running netconsole and enabling VF on the same
> device. Or running netconsole and changing number of tx queues via
> ethtool on same device.
...
> Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
> ---
> v1->v2:
> - addressed comments from Eric Dumazet.
Applied and queued up for -stable, thanks!
prev parent reply other threads:[~2017-04-21 19:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-20 22:57 [PATCH v2] netpoll: Check for skb->queue_mapping Tushar Dave
2017-04-21 19:45 ` David Miller [this message]
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