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From: David Brownell <david-b@pacbell.net>
To: linux-omap-open-source@linux.omap.com
Subject: Re: OMAP2430: MUSB: Ethernet Gadget Issue
Date: Fri, 23 Nov 2007 12:26:44 -0800	[thread overview]
Message-ID: <200711231226.44592.david-b@pacbell.net> (raw)
In-Reply-To: <5573C19A4BBDB441BED2A44157E9705302A4C387@dlee12.ent.ti.com>

Your test scenario sounds not unlike the "run TTCP in both
directions" test, except that it uses UDP.  The last time
I ran that test with the MUSB code was with DaVinci ... at
that time, it worked OK.  That's older RTL than found in
the OMAP chips, and thus "different bugs".

Not entirely for kicks, it would be good to know whether
the use of TTCP vs your test program matters.  TCP does
have some flow control, afster all!


On Wednesday 21 November 2007, Hunter, Jon wrote:
>	 
> When I run the applications one at a time, they will run all night and
> all is well. However, when I run them at the same time the transfer will
> stop after anywhere from a few secs to a few minutes. When the transfers
> stop I observe the the MUSB driver is no longer generating interrupts
> (viewing the /proc/interrupts). It appears to be some short of race
> condition but I have not been able to track down exactly when things
> stop.

A "cat /proc/driver/musb_hdrc" to see various state should
be informative.

- Dave

  reply	other threads:[~2007-11-23 20:26 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-21 17:08 OMAP2430: MUSB: Ethernet Gadget Issue Hunter, Jon
2007-11-23 20:26 ` David Brownell [this message]
2007-11-29 20:03   ` Foale, Jeff
2007-11-29 21:07     ` David Brownell
2007-12-07 20:55     ` Hunter, Jon
2007-12-07 20:38   ` Hunter, Jon
2007-12-10  5:34     ` David Brownell
2007-12-12 20:55       ` Hunter, Jon
2007-12-12 23:22         ` Hunter, Jon
2007-12-18  0:00       ` Hunter, Jon
2007-12-18  1:05         ` Tony Lindgren
  -- strict thread matches above, loose matches on Subject: below --
2007-12-05 22:10 Foale, Jeff
2007-12-06 16:17 ` David Brownell
2007-12-07 20:55   ` Hunter, Jon

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