RE: megaraid on opteron w/ 8G RAM

[<ttwillman@penguincomputing.com>]

I'm continuing the work on this system; Dan or I will try to get a serial
console hooked up soon (I'm working on system mostly remotely,
unfortunately).

What I've found so far:

it doesn't appear to be so much a problem with the megaraid driver
specifically; appears to be related more to the x86_64 code.  I've found
that kernel 2.4.25 from kernel.org works fine *if* mem=8128 is passed;
which would appear to me to be an issue with pci memory allocation. 
However RHEL3's 2.4.21-4ELsmp and 2.4.21-9.0.1ELsmp kernels do not work. 
I've also applied MTRR patches and some minor other fixups to no avail so
far.  I have not tried to apply ACPI/APIC patches yet to the RHEL kernels.

The driver stops after sending the first enquiry command to the card;
waits in a tight while loop polling for a response from the card with
interrupts disabled.


kernel.org ker

> What is the megaraid2 driver version? Can you inline the panic messages?
>
> -Atul Mukker
>
> -----Original Message-----
> From: dan carpenter [mailto:error27@email.com]
> Sent: Wednesday, March 10, 2004 9:19 PM
> To: linux-kernel@vger.kernel.org
> Cc: linux-scsi@vger.kernel.org
> Subject: megaraid on opteron w/ 8G RAM
>
>
> I'm using the megaraid 1.19.6 driver on RedHat Work Station
> x86_64.  It works great with only 4 gigs of RAM installed,
> but it locks up when I load the module with 8 gigs of RAM
> installed.  It generally locks up in the issue_scb_block()
> but it's not always consistent about which line it locks
> up on within that function.
>
> On the default Suse Linux Enterprise Server 8 the module
> loads but after around 5 hours of running drive tests the
> drives stop responding.
>
> I also tried the megaraid2 module and that kernel panics
> when the module is loaded.
>
> I'm using an arima motherboard with the 1.84 BIOS.
>
> Is this a known issue?  Has anyone been able to make a
> similar config work?
>
> regards,
> dan carpenter
> --
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