RE: [PATCH 2.6.0] megaraid 64bit fix/cleanup (AMD64)

[Jord Tanner]

Thanks Atul!

After patching for 2.6.5 the 2.20.0.B2 driver compiled clean and the
machine in now running with that driver. We are about to run some stress
tests to see if we can duplicate the previous problems. 

Given that we are running a 64bit compile, and the previous attempts by
Brad House to make amd64 modifications were abandonded, could you
comment on whether you think the newest megaraid code
(ftp://ftp.lsil.com/pub/linux-megaraid/drivers/version-unified-2.20.0.B2.04.14.2004)
is 64bit safe?  

TIA

Jord Tanner
Independent Gecko Consultants

On Fri, 2004-04-16 at 09:35, Mukker, Atul wrote:
> Please use the latest driver 2.20.0.B2, about to be released today. Please
> provide a feedback if you see the same issues.
> 
> -Atul Mukker
> LSI Logic
> 
> > -----Original Message-----
> > From: Jord Tanner [mailto:jord@xxxxxxxxxxxxx]
> > Sent: Friday, April 16, 2004 9:57 AM
> > To: linux-kernel@xxxxxxxxxxxxxxx
> > Cc: brad_mssw@xxxxxxxxxx; Atulm@xxxxxxxx
> > Subject: Re: [PATCH 2.6.0] megaraid 64bit fix/cleanup (AMD64)
> > 
> > 
> > 
> > On Tue Dec 30 2003 - 16:11:40 EST Brad House wrote:
> > 
> >         Ok, I just ported the 2.00.9 driver to 2.6.0.
> >         It still has these warnings during compilation as I did not
> >         attempt to apply my 64bit fixes from before as I've been told
> >         they are just plain wrong :/
> >         
> >         But, I suppose this should work fine in 32bit mode, I would
> >         greatly appreciate any help in porting it for 64bit platforms.
> >         
> >         The patch can be downloaded here :
> >         
> > http://dev.gentoo.org/~brad_mssw/kernel_patches/megaraid/megar
> > aid-v2.00.9-linux2.6.patch
> >         And only applies to the source from ftp.lsil.com, it's not a
> >         kernel-patch
> >         per-se, but copying the result over to the drivers/scsi will
> >         compile inplace
> >         of the current versions.
> >         
> >         Please CC me on any replies!
> >         -Brad House <brad_mssw@xxxxxxxxxx>
> > 
> > 
> > 
> > This thread has been inactive for a while, but I've not found anything
> > more relevant to my situation. 
> > 
> > I'm running 2.6.3-gentoo (and 2.6.5-gentoo) with a LSILogic SATA
> > Megaraid 150-6 raid controller on a dual Opteron system. The entire
> > system is compiled in 64bit. We are seeing random database corruption
> > when access very large Postgres tables (more than 10 million rows).
> > Other than that, the system runs beautifully.
> > 
> > As far as I can tell, no amd64 specific patches have been 
> > applied to the
> > megaraid driver in 2.6.3 (version 2.00.3). Brad House has posted a 2.6
> > patch for megaraid 2.00.9, but his previous amd64 patches 
> > were removed.
> > LSI tech support has suggested I upgrade to 2.00.9, but the LSI source
> > is for 2.4.
> > 
> > So my questions are:
> > 
> >         - Could the 2.00.3 driver be responsible for random data
> >         corruption when running on 2.6.3 in 64bit?
> >         - Is it safe to run Brad House's 2.6 megaraid 2.00.9 
> > patches in
> >         64 bit mode on amd64?
> >         - Are there any patches for megaraid 2.00.9 (or higher, I see
> >         2.00.10-3 has just been released) that combine patches for 2.6
> >         and amd64?
> >         
> > TIA,
> > 
> > 
> > -- 
> > Jord Tanner <jord@xxxxxxxxxxxxx>
> > 
> > -
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> > 
-- 
Jord Tanner <jord@xxxxxxxxxxxxx>

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