* Memory problem w/ recent kernels on 2x Opteron with 12 GB RAM
@ 2005-08-24 21:08 Rafael J. Wysocki
2005-08-24 21:21 ` Andi Kleen
0 siblings, 1 reply; 3+ messages in thread
From: Rafael J. Wysocki @ 2005-08-24 21:08 UTC (permalink / raw)
To: LKML; +Cc: discuss, Andi Kleen
Hi,
I'm currently seeing a memory problem on a NUMA-enabled dual-Opteron 250 box
with the 2.6.12.5 and 2.6.13-rc* (up to 7) kernels. Namely, the box has 12 GB of
RAM, 8 GB of which is installed on the first node. The whole memory is detected
but then only the first 8 GB of it is made available (minus some hardware-related
holes), as though the memory on the second node were discarded for some
reason.
I have observed that the latest Fedora Core 3 kernel (based on 2.6.12) is also
affected by this issue, but the "out-of-the-box" FC3 kernel, based on 2.6.9, is not.
The motherboard is a Tyan S2882-D with the out-of-the-box BIOS, which is not
the latest one. Should I upgrade it?
Rafael
--
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
-- Lewis Carroll "Alice's Adventures in Wonderland"
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Memory problem w/ recent kernels on 2x Opteron with 12 GB RAM
2005-08-24 21:08 Memory problem w/ recent kernels on 2x Opteron with 12 GB RAM Rafael J. Wysocki
@ 2005-08-24 21:21 ` Andi Kleen
2005-08-25 21:39 ` Rafael J. Wysocki
0 siblings, 1 reply; 3+ messages in thread
From: Andi Kleen @ 2005-08-24 21:21 UTC (permalink / raw)
To: Rafael J. Wysocki; +Cc: LKML, discuss
On Wednesday 24 August 2005 23:08, Rafael J. Wysocki wrote:
> Hi,
>
> I'm currently seeing a memory problem on a NUMA-enabled dual-Opteron 250
> box with the 2.6.12.5 and 2.6.13-rc* (up to 7) kernels. Namely, the box
> has 12 GB of RAM, 8 GB of which is installed on the first node. The whole
> memory is detected but then only the first 8 GB of it is made available
> (minus some hardware-related holes), as though the memory on the second
> node were discarded for some reason.
Boot log please?
-Andi
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Memory problem w/ recent kernels on 2x Opteron with 12 GB RAM
2005-08-24 21:21 ` Andi Kleen
@ 2005-08-25 21:39 ` Rafael J. Wysocki
0 siblings, 0 replies; 3+ messages in thread
From: Rafael J. Wysocki @ 2005-08-25 21:39 UTC (permalink / raw)
To: Andi Kleen; +Cc: LKML, discuss
On Wednesday, 24 of August 2005 23:21, Andi Kleen wrote:
> On Wednesday 24 August 2005 23:08, Rafael J. Wysocki wrote:
> > Hi,
> >
> > I'm currently seeing a memory problem on a NUMA-enabled dual-Opteron 250
> > box with the 2.6.12.5 and 2.6.13-rc* (up to 7) kernels. Namely, the box
> > has 12 GB of RAM, 8 GB of which is installed on the first node. The whole
> > memory is detected but then only the first 8 GB of it is made available
> > (minus some hardware-related holes), as though the memory on the second
> > node were discarded for some reason.
>
>
> Boot log please?
Sorry for the delay. The BIOS upgrade has fixed the problem.
Greetings,
Rafael
--
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
-- Lewis Carroll "Alice's Adventures in Wonderland"
^ permalink raw reply [flat|nested] 3+ messages in thread
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2005-08-24 21:08 Memory problem w/ recent kernels on 2x Opteron with 12 GB RAM Rafael J. Wysocki
2005-08-24 21:21 ` Andi Kleen
2005-08-25 21:39 ` Rafael J. Wysocki
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