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From: Lane Brooks <lane@brooks.nu>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	linux-media@vger.kernel.org
Subject: Translation faults with OMAP ISP
Date: Tue, 16 Nov 2010 16:46:27 -0700	[thread overview]
Message-ID: <4CE317D3.2020504@brooks.nu> (raw)
In-Reply-To: <201011160001.10737.laurent.pinchart@ideasonboard.com>

Laurent,

I am getting iommu translation errors when I try to use the CCDC output 
after using the Resizer output.

If I use the CCDC output to stream some video, then close it down, 
switch to the Resizer output and open it up and try to stream, I get the 
following errors spewing out:

omap-iommu omap-iommu.0: omap2_iommu_fault_isr: da:00d0ef00 translation 
fault
omap-iommu omap-iommu.0: iommu_fault_handler: da:00d0ef00 pgd:ce664034 
*pgd:00000000

and the select times out.

 From a fresh boot, I can stream just fine from the Resizer and then 
switch to the CCDC output just fine. It is only when I go from the CCDC 
to the Resizer that I get this problem. Furthermore, when it gets into 
this state, then anything dev node I try to use has the translation 
errors and the only way to recover is to reboot.

Any ideas on the problem?

Thanks,
Lane

       reply	other threads:[~2010-11-16 23:46 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <4CE16AA2.3000208@brooks.nu>
     [not found] ` <4CE18EE4.7080203@brooks.nu>
     [not found]   ` <201011160001.10737.laurent.pinchart@ideasonboard.com>
2010-11-16 23:46     ` Lane Brooks [this message]
2010-11-17 23:09       ` Translation faults with OMAP ISP Laurent Pinchart
2010-11-17 23:17         ` Lane Brooks
2010-11-19 13:29           ` David Cohen
2010-11-19 14:08             ` Lane Brooks
2010-11-19 14:13               ` Laurent Pinchart
2010-11-19 14:16                 ` Lane Brooks
2010-11-19 15:06                   ` David Cohen
2010-11-19 15:07                     ` Laurent Pinchart
2010-11-19 15:12                       ` David Cohen
2010-11-19 16:07                         ` [omap3isp] Prefered patch base for latest code? (was: "RE: Translation faults with OMAP ISP") Aguirre, Sergio
2010-11-19 16:16                           ` Laurent Pinchart
2010-11-19 16:23                             ` Aguirre, Sergio
2010-11-19 16:32                               ` Laurent Pinchart
2010-11-19 16:37                                 ` Aguirre, Sergio

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