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Re: [patch 01/28] cpu alloc: The allocator

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From: David Miller
Subject: Re: [patch 01/28] cpu alloc: The allocator
Date: Tuesday, November 13, 2007 - 4:15 am

From: Christoph Lameter <clameter@sgi.com>
Date: Tue, 06 Nov 2007 11:51:45 -0800


Unfortunately, sparc64 fails to boot even with just this patch
applied.

The problem is that for the non-virtualized case this patch bloats up
the BSS section to be more than 8MB in size.  Sparc64 kernel images
cannot be more than 8MB in size total due to various boot loader and
firmware limitations.

I have NR_CPUS set to 64, but it can be up to 4096 on sparc64.

Yes, I could add virtualized area support to sparc64, but we cannot
impose this on every platform.

One thing you could do is simply use a vmalloc allocation in the
non-virtualized case.
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Messages in current thread:
[patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 6, 12:51 pm)
Re: [patch 01/28] cpu alloc: The allocator, Peter Zijlstra, (Thu Nov 8, 5:34 am)
Re: [patch 01/28] cpu alloc: The allocator, Peter Zijlstra, (Thu Nov 8, 5:37 am)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Thu Nov 8, 11:33 am)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Thu Nov 8, 11:50 am)
Re: [patch 01/28] cpu alloc: The allocator, Peter Zijlstra, (Thu Nov 8, 1:19 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 4:15 am)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 2:40 pm)
Re: [patch 01/28] cpu alloc: The allocator, Eric Dumazet, (Tue Nov 13, 2:58 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 3:00 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 3:02 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 3:20 pm)
Re: [patch 01/28] cpu alloc: The allocator, Andi Kleen, (Tue Nov 13, 6:06 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 6:30 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 6:33 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 6:36 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 6:37 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 6:48 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 6:50 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 6:52 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 6:57 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 7:00 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 7:01 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 7:03 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 7:05 pm)
Re: [patch 01/28] cpu alloc: The allocator, Andi Kleen, (Tue Nov 13, 7:28 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 8:48 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 8:49 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 9:15 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 9:18 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 9:21 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Tue Nov 13, 9:26 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Tue Nov 13, 10:53 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Thu Nov 15, 11:49 am)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Thu Nov 15, 7:19 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Thu Nov 15, 7:50 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Thu Nov 15, 7:55 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Thu Nov 15, 8:10 pm)
Re: [patch 01/28] cpu alloc: The allocator, David Miller, (Thu Nov 15, 8:17 pm)
Re: [patch 01/28] cpu alloc: The allocator, Christoph Lameter, (Thu Nov 15, 8:19 pm)
large lockdep bss (was: Re: [patch 01/28] cpu alloc: The a ..., Peter Zijlstra, (Fri Nov 16, 3:23 am)
Re: large lockdep bss (was: Re: [patch 01/28] cpu alloc: T ..., Andi Kleen, (Fri Nov 16, 4:44 am)