From: Michael Witten <mfwitten@gmail.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Arnuschky <arnuschky@xylon.de>, linux-kernel@vger.kernel.org
Subject: Re: Dropped IRQ disables Radeon 3D
Date: Fri, 15 Jul 2011 10:53:41 -0000 [thread overview]
Message-ID: <15f2d51a1ab5412a9d7c327ab67b8166-mfwitten@gmail.com> (raw)
In-Reply-To: <1310720984.4968.313.camel@pasglop>
On Fri, 15 Jul 2011 19:09:44 +1000, Benjamin Herrenschmidt wrote:
> On Fri, 2011-07-15 at 08:20 +0000, Michael Witten wrote:
>>
>> Arnuschky wrote to me about this related Debian bug report:
>>
>> Fri, 2010-06-18 10:21:05 +0000
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=586312
>>
>> I popped over to #radeon on freenode where user agd5f told me to
>> try the following on the kernel command line:
>>
>> pci=nomsi
>>
>> After reading about MSIs and the requisite CONFIG_* settings, I
>> realized that I didn't even have MSI support in the kernel anyway.
>> Then agd5f suggested the following patches by Benjamin Herrenschmidt
>> might be of help:
>
> Another problem I noticed is some cards, when not using MSIs, still seem
> to shoot an MSI with whatever value was last programmed into the MSI
> configuration space. Can you check with lspci -vv if there's a non-0
> value in there ? It -could- be that your get bogus MSIs.
So, you want me to boot my Linux version that doesn't have MSI support
and check whether `sudo lspci -vv' says that it is using MSIs?
next prev parent reply other threads:[~2011-07-15 11:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-02 20:19 Michael Witten
2011-07-15 8:20 ` Michael Witten
2011-07-15 9:09 ` Benjamin Herrenschmidt
2011-07-15 10:53 ` Michael Witten [this message]
2011-07-15 11:11 ` Arnuschky
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