MSR_SPE - being turned off...

Morrison, Tom tmorrison at empirix.com
Thu May 7 05:33:53 EST 2009


After sitting with the developer of the application for a while, we may
have 
two separate issues...

a) Alignment (aka: alignment exceptions) - Looking at how it handles it 
    And attempts to 

b) For aligned data - we still contend that if you have enough tasks
working

>> -----Original Message-----
>> From: Kumar Gala [mailto:galak at kernel.crashing.org]
>> Sent: Wednesday, May 06, 2009 8:44 AM
>> To: Morrison, Tom
>> Cc: Michael Neuling; linuxppc-dev at ozlabs.org
>> Subject: Re: MSR_SPE - being turned off...
>> 
>> Can you describe the # of processes you are running in your test.  Is
>> it possible for you to try the tests w/2.6.29 from kernel.org?
>> 
>> - k
>> 
>> On May 6, 2009, at 7:42 AM, Morrison, Tom wrote:
>> 
>> > I'm sorry I forgot to put that, this issue was found with our
>> > currently running kernel 2.6.23.final (what comes with the
>> > Freescale LTIB BSP package dated 05/23/2009).
>> >
>> > I am sorry if I don't understand your statement that the SMP might
>> > be broken on this kernel, because I tried to analyze the kernel
that
>> > came with the latest BSP LTIB [ackage from Freescale (dated
12/18/2009
>> > (where we got the 4.2.171 compiler from)), and the associated
'switch
>> > context' code is exactly the same. Unfortunately, I have not
started
>> > the process of porting my current platform's BSP to this new kernel
-
>> > otherwise, I would have done the test on that platform (this also
>> > requires a new version of u-boot in order to test correctly))..
>> >
>> > I may have mis-interpreted something and/or I am sure I don't
>> > understand everything about the SMP resource management (and
>> > associated SPE management), so thank you for any insight you
>> > may have on this front...
>> >
>> > Tom
>> >
>> >>> -----Original Message-----
<snip other emails>




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