Re: [git pull] "big box" x86 changes, boot protocol

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To: Adrian Bunk <bunk@...>
Cc: Andrew Morton <akpm@...>, Ingo Molnar <mingo@...>, Linus Torvalds <torvalds@...>, <linux-kernel@...>, Thomas Gleixner <tglx@...>, Yinghai Lu <yinghai.lu@...>, Yinghai Lu <yhlu.kernel@...>, <jbarnes@...>
Date: Saturday, April 26, 2008 - 5:10 pm

Adrian Bunk wrote:


You have to do something pretty weird for memcpy() to not work for
dst <= src even with overlap; this usually involves architectures that 
have explicit cache control instructions to establish the dst in the 
cache, if used before src is read.

This is not an issue on x86, though.

	-hpa
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Messages in current thread:
[RFC git pull] "big box" x86 changes, Ingo Molnar, (Sat Apr 26, 2:55 pm)
Re: [RFC git pull] "big box" x86 changes, Andi Kleen, (Sat Apr 26, 6:17 pm)
Re: [RFC git pull] "big box" x86 changes, Yinghai Lu, (Sat Apr 26, 11:14 pm)
Re: [RFC git pull] "big box" x86 changes II, Andi Kleen, (Sun Apr 27, 4:32 am)
Re: [RFC git pull] "big box" x86 changes, Andi Kleen, (Sun Apr 27, 4:30 am)
Re: [RFC git pull] "big box" x86 changes, Linus Torvalds, (Sat Apr 26, 3:12 pm)
[git pull] "big box" x86 changes, PCI, Ingo Molnar, (Sat Apr 26, 5:55 pm)
Re: [git pull] "big box" x86 changes, PCI, Jesse Barnes, (Mon Apr 28, 4:34 pm)
Re: [git pull] "big box" x86 changes, PCI, Yinghai Lu, (Mon Apr 28, 6:53 pm)
Re: [git pull] "big box" x86 changes, PCI, Jesse Barnes, (Sun Apr 27, 12:30 pm)
Re: [git pull] "big box" x86 changes, PCI, Ingo Molnar, (Mon Apr 28, 11:38 am)
[RFC git pull] "big box" x86 changes, GART, Ingo Molnar, (Sat Apr 26, 4:24 pm)
Re: [RFC git pull] "big box" x86 changes, GART, Ingo Molnar, (Sat Apr 26, 4:26 pm)
[git pull] "big box" x86 changes, boot protocol, Ingo Molnar, (Sat Apr 26, 3:54 pm)
Re: [git pull] "big box" x86 changes, boot protocol, Ian Campbell, (Sun Apr 27, 7:21 am)
Re: [git pull] "big box" x86 changes, boot protocol, Ingo Molnar, (Mon Apr 28, 11:27 am)
Re: [git pull] "big box" x86 changes, boot protocol, H. Peter Anvin, (Sun Apr 27, 3:29 pm)
Re: [git pull] "big box" x86 changes, boot protocol, Andrew Morton, (Sat Apr 26, 4:39 pm)
Re: [git pull] "big box" x86 changes, boot protocol, Jeremy Fitzhardinge, (Sat Apr 26, 7:37 pm)
Re: [git pull] "big box" x86 changes, boot protocol, Adrian Bunk, (Sat Apr 26, 5:06 pm)
Re: [git pull] "big box" x86 changes, boot protocol, Linus Torvalds, (Sat Apr 26, 5:11 pm)
Re: [git pull] "big box" x86 changes, boot protocol, Ingo Molnar, (Sat Apr 26, 5:17 pm)
Re: [git pull] "big box" x86 changes, boot protocol, H. Peter Anvin, (Sat Apr 26, 5:10 pm)
[git pull] "big box" x86 changes, bootmem/sparsemem, Ingo Molnar, (Sat Apr 26, 3:41 pm)
Re: [git pull] "big box" x86 changes, bootmem/sparsemem, Johannes Weiner, (Sun Apr 27, 6:48 pm)
Re: [git pull] "big box" x86 changes, bootmem/sparsemem, Johannes Weiner, (Mon Apr 28, 12:58 pm)
Re: [git pull] "big box" x86 changes, bootmem/sparsemem, Johannes Weiner, (Sun Apr 27, 8:19 pm)
[patch] mm: node-setup agnostic free_bootmem(), Ingo Molnar, (Sun Apr 27, 8:40 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Johannes Weiner, (Mon Apr 28, 12:49 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Ingo Molnar, (Tue Apr 29, 10:25 am)
Re: [patch] mm: node-setup agnostic free_bootmem(), Johannes Weiner, (Wed Apr 30, 6:52 am)
Re: [patch] mm: node-setup agnostic free_bootmem(), Yinghai Lu, (Sun Apr 27, 9:48 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Johannes Weiner, (Mon Apr 28, 12:54 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Yinghai Lu, (Mon Apr 28, 3:11 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Yinghai Lu, (Mon Apr 28, 3:55 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Johannes Weiner, (Wed Apr 30, 6:50 am)
Re: [patch] mm: node-setup agnostic free_bootmem(), Yinghai Lu, (Wed Apr 30, 12:22 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Johannes Weiner, (Wed Apr 30, 1:52 pm)
Re: [patch] mm: node-setup agnostic free_bootmem(), Yinghai Lu, (Wed Apr 30, 4:30 pm)
Re: [git pull] "big box" x86 changes, bootmem/sparsemem, Linus Torvalds, (Sat Apr 26, 3:52 pm)
Re: [RFC git pull] "big box" x86 changes, Stefan Richter, (Sat Apr 26, 3:05 pm)
Re: [RFC git pull] "big box" x86 changes, Ingo Molnar, (Sat Apr 26, 3:21 pm)