linux-kernel - Re: Dropped IRQ disables Radeon 3D

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 15 Jul 2011 10:53:41 -0000
From:	Michael Witten <mfwitten@...il.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Arnuschky <arnuschky@...on.de>, linux-kernel@...r.kernel.org
Subject: Re: Dropped IRQ disables Radeon 3D

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?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/