Re: 3ware: no cards found in 2.2.19, cards found in 2.4.x

[David Ford <david@blue-labs.org>]

Both of these address the VM issues.  I won't say VM is perfect, but you 
can't know if it works better for you like it does for me until you try 
it.  Upgrading a kernel is a pretty quick and painless job.  As to the 
corruption, I don't see enough below to make a start as to the cause.

David

Brian Strand wrote:

> Do either of these kernels fix the "2.4.x VM suckage" problems?  I 
> don't want to use a 2.4.x kernel because Oracle runs almost 2x slower 
> (with identical hardware config) on 2.4.4 and 2.4.6 versus 2.2.16 (and 
> I have 4G of swap for 2G of physical mem, so that is not the problem), 
> not to mention that one of these 2.4.x kernels caused Oracle 
> corruption.  I don't feel so comfortable testing new kernels with 
> several hundred GBs of customer data anymore :) .
>
> David Ford wrote:
>
>> I first suggest that you try kernel 2.4.9 or the latest of 2.4.8-acN.
>>
>> David
>>
>> Brian Strand wrote:
>>
>>> I have a quad xeon 2GB system running Oracle which I am reverting to 
>>> 2.2.x because of 2.4.x's less than desirable VM performance (causing 
>>> a 2x Oracle slowdown, reported about a month ago on linux-kernel).  
>>> I foolishly put a 3ware card in at the same time as I "upgraded" the 
>>> box to 2.4.4, so now I am in the undesirable position of needing to 
>>> go back to 2.2.19, but that kernel cannot find the card.  I get the 
>>> following message during boot:
>>>
>>> 3w-xxxx: tw_find_cards(): No cards found
>>> /lib/moduless/2.2.19-2GB-SMP/scsi/3w-xxxx.o: init_module: Device or 
>>> resource busy
>>>
>>> I have tried compiling the 3ware driver version 
>>> 1.02.00.{004,006,007} all with the same result.  Has anyone managed 
>>> to use a Suse 2.2.19 kernel with 3ware cards with any success?  The 
>>> 1.02.00.004 driver is from the stock 2.2.19 kernel, the .006 driver 
>>> is from 3ware's website, and the .007 driver is from 2.2.20pre9.
>>
>>