On Tue, Jul 26, 2016 at 05:38:49PM +0300, Nikolay Borisov wrote:
> In case an infiniband outtage occurs the messages modified
> in this patchset can flood the host with a rate of 1 message per
s/patchset/patch
> ms which is a lot. Using the ratelimited version of ipoib_warn
> fixes the issue by limiting at most 10 messages in 5 seconds.
>
> Signed-off-by: Nikolay Borisov <kernel@xxxxxxxx>
> ---
> drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
> index 7d3281866ffc..dd5b4afbc00b 100644
> --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
> +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
> @@ -1034,9 +1034,9 @@ static void ipoib_timeout(struct net_device *dev)
> {
> struct ipoib_dev_priv *priv = netdev_priv(dev);
>
> - ipoib_warn(priv, "transmit timeout: latency %d msecs\n",
> + ipoib_warn_rl(priv, "transmit timeout: latency %d msecs\n",
> jiffies_to_msecs(jiffies - dev->trans_start));
> - ipoib_warn(priv, "queue stopped %d, tx_head %u, tx_tail %u\n",
> + ipoib_warn_rl(priv, "queue stopped %d, tx_head %u, tx_tail %u\n",
So this is just to hide the hide the problem, the real question is what is
causing this to happen a lot.
> netif_queue_stopped(dev),
> priv->tx_head, priv->tx_tail);
> /* XXX reset QP, etc. */
> --
> 2.5.0
>
> --
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