Subject: Re: Fatal DMA error problem with netbook and BCM4312
From: Johannes Berg <johannes@sipsolutions.net>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chris Vine <chris@cvine.freeserve.co.uk>,
	wireless <linux-wireless@vger.kernel.org>,
	bcm43xx-dev@lists.berlios.de
In-Reply-To: <4B09EAEF.6010202@lwfinger.net>
References: <4AFA09C8.4060602@gmail.com> <200911131216.43704.mb@bu3sch.de>
	 <4AFD83CA.2050508@lwfinger.net> <200911131836.26857.mb@bu3sch.de>
	 <4AFD9E20.3060501@gmail.com> <4AFDD1C9.4050402@lwfinger.net>
	 <4AFDF68C.4040804@polymtl.ca> <4AFE1E5F.9040009@lwfinger.net>
	 <4AFEFC2C.5030704@polymtl.ca> <4B068ED9.5070107@lwfinger.net>
	 <20091120195834.334d8bc0@boulder.homenet>	<4B06F685.1020405@lwfinger.net>
	 <20091121001512.02326eda@boulder.homenet>
	 <20091122190353.06cfdab7@boulder.homenet>  <4B09EAEF.6010202@lwfinger.net>
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Date: Mon, 23 Nov 2009 11:18:37 +0100
Message-ID: <1258971517.7094.139.camel@johannes.local>
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On Sun, 2009-11-22 at 19:52 -0600, Larry Finger wrote:

> We know that the wl driver does something to the interface that persists =
across
> a warm boot - we just do not know what. It does not appear to be done in =
any of
> the MMIO traffic - at least I have not seen it in the mmio-trace output. =
If
> anyone has a KVM setup using PCI passthrough, it is possible to trace PCI
> configuration traffic?

I'm pretty sure even the binary driver has to go through
drivers/pci/access.c, maybe you can just insert logging into that code?

johannes

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