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From: "Steve Wise" <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: 'Leon Romanovsky' <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	'Olga Kornievskaia'
	<aglo-63aXycvo3TyHXe+LvDLADg@public.gmane.org>
Cc: 'Doug Ledford' <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	'linux-rdma' <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org
Subject: RE: krping problem on 4.15-rc4
Date: Fri, 19 Jan 2018 09:53:40 -0600	[thread overview]
Message-ID: <00c601d3913d$acfef920$06fceb60$@opengridcomputing.com> (raw)
In-Reply-To: <20180119110852.GB1393-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>

> > >>> > > Not sure.  But it does seem to be tied to that specific machine.
> Question:  Is an IOMMU enabled on that system?
> > >>> >
> > >>> > IOMMU (Inter's VT-d) is enabled in BIOS (on both machines).
> > >>> >
> > >>> > >  Perhaps that is exposing a dma mapping problem with krping?
> > >>>
> > >>> I have replaces the CX-5 card with another one and I no longer see
the
> > >>> krping problem.  I think it speaks that it's a card issue...
> > >>
> > >> Check the firmware on the bad card.  Lots of issues disappear if you
> > >> have older firmware and update to the latest.
> > >
> > > That's a valid point. A check of firmware versions is needed. At the
> > > time of the problem, I believe I had two machines that each had same
> > > firmware versions. After card replacement, the replacement card
> > > displays newer firmware.
> >
> > I have upgraded the firmware on both machines involved to the latest
> > available firmware for the card and now I'm in the situation where
> > krping does not work on either machine --- when either of them is a
> > server it fails with the same information in the var log messages:
> 
> Doesn't it mean that the issue in FW?
> 

Is still possible that krping has some dma mapping bug that wasn't detected
by older FW, and now is being detected by the new FW?


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      parent reply	other threads:[~2018-01-19 15:53 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-09 15:30 krping problem on 4.15-rc4 Olga Kornievskaia
     [not found] ` <CAN-5tyH1HO7yzzQLyb5z5Pq=OrHnKzmCrR2MffLguqsEA-mwWg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-10 20:10   ` Steve Wise
2018-01-11 18:18     ` Olga Kornievskaia
2018-01-11 19:45       ` Steve Wise
2018-01-12 22:06         ` Olga Kornievskaia
     [not found]           ` <CAN-5tyGq=hmXY9HZYXpfaytOUV=gb0fri69gj69WKbbYtW3nTQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-13  0:07             ` Steve Wise
2018-01-16 19:50               ` Olga Kornievskaia
     [not found]                 ` <CAN-5tyG9ZsaKZs3ayfFfuy7o25DrXR2yWmwUvLdNutJ1SbEg1w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-16 21:14                   ` Olga Kornievskaia
     [not found]                     ` <CAN-5tyFSYWaTPVdq=99Yr9XwnULyf4tw06roZys=rtR0F3x03g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-17 21:03                       ` Doug Ledford
     [not found]                         ` <1516223013.3403.285.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-17 22:03                           ` Olga Kornievskaia
     [not found]                             ` <CAN-5tyFM_Noj5n-BW+BMa-0VXBWnUVWU2JkiP2f5JBpZoA6YcQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-18 16:13                               ` Olga Kornievskaia
     [not found]                                 ` <CAN-5tyGxnd0WnvgxEpNpZ5fG6u2JZs=Wg0fEvt8EaNLHckvx0A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-19 11:08                                   ` Leon Romanovsky
     [not found]                                     ` <20180119110852.GB1393-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2018-01-19 12:21                                       ` Majd Dibbiny
     [not found]                                         ` <14B966CB-B883-4431-A2A3-9DDE6B88B9AB-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2018-01-19 13:57                                           ` Olga Kornievskaia
     [not found]                                             ` <CAN-5tyGiuuvzxru+aeeCahukrbm_aivN+HfLx=X1d8txxL4A9w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-19 21:07                                               ` Olga Kornievskaia
2018-01-19 15:53                                       ` Steve Wise [this message]

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