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Date: Tue, 17 Feb 2009 15:20:28 -0800
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Message-ID: <86802c440902171520r4eb9c94ev416a54c540cf60c1@mail.gmail.com>
Subject: Re: mpt fusion broken sometime since 2.6.24
From: Yinghai Lu <yinghai@kernel.org>
To: Matthew Wilcox <matthew@wil.cx>, Andrew Morton <akpm@linux-foundation.org>,
       James Bottomley <James.Bottomley@hansenpartnership.com>,
       Linus Torvalds <torvalds@linux-foundation.org>
Cc: david@lang.hm, linux-kernel <linux-kernel@vger.kernel.org>,
       linux-scsi@vger.kernel.org, DL-MPTFusionLinux@lsi.com
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On Tue, Feb 17, 2009 at 3:11 PM, Matthew Wilcox <matthew@wil.cx> wrote:
> On Tue, Feb 17, 2009 at 03:07:26PM -0800, david@lang.hm wrote:
>> >mptbase.mpt_msi_enable_sas=0
>>
>> is that disabling SAS for this system? if so, that's the wrong thing to do
>> (the drives are SAS)
>
> no, it's disabling msi for sas controllers.
>
> nb, I said this patch (e382968ba618e016ff7922dff9a6140c2f9108c8) was
> the wrong way to go about getting MSI working.

yes. that patch really does disable the mptsas with MSI.

http://lkml.org/lkml/2009/2/6/375
it should get into 2.6.29...

YH