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Re: [11/14] vcompound: Fallbacks for order 1 stack allocations on IA64 and x86

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From: Christoph Lameter <clameter@...>
To: David Miller <davem@...>
Cc: <linux-mm@...>, <linux-kernel@...>, <linux-ia64@...>
Subject: Re: [11/14] vcompound: Fallbacks for order 1 stack allocations on IA64 and x86
Date: Monday, March 24, 2008 - 2:27 pm

On Fri, 21 Mar 2008, David Miller wrote:


I am familiar with that area and I am resonably sure that this 
is an issue on IA64 under some conditions (the processor decides to spill 
some registers either onto the stack or into the register backing store 
during tlb processing). Recursion (in the kernel context) still expects 
the stack and register backing store to be available. ccing linux-ia64 for 
any thoughts to the contrary.

The move to 64k page size on IA64 is another way that this issue can be 
addressed though. So I think its best to drop the IA64 portion.
--
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Messages in current thread:
[11/14] vcompound: Fallbacks for order 1 stack allocations o..., Christoph Lameter, (Fri Mar 21, 2:17 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Andi Kleen, (Fri Mar 21, 6:30 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Mon Mar 24, 3:53 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Andi Kleen, (Tue Mar 25, 3:51 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Tue Mar 25, 1:55 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Andi Kleen, (Tue Mar 25, 2:07 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., David Miller, (Fri Mar 21, 3:25 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Fri Mar 21, 1:40 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., David Miller, (Fri Mar 21, 5:57 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Mon Mar 24, 2:27 pm)
larger default page sizes..., David Miller, (Mon Mar 24, 4:37 pm)
Re: larger default page sizes..., Christoph Lameter, (Mon Mar 24, 5:05 pm)
Re: larger default page sizes..., David Miller, (Mon Mar 24, 5:43 pm)
Re: larger default page sizes..., Christoph Lameter, (Tue Mar 25, 1:48 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 7:22 pm)
Re: larger default page sizes..., Peter Chubb, (Tue Mar 25, 7:41 pm)
Re: larger default page sizes..., David Mosberger-Tang, (Tue Mar 25, 8:34 pm)
Re: larger default page sizes..., Peter Chubb, (Tue Mar 25, 8:57 pm)
Re: larger default page sizes..., John Marvin, (Wed Mar 26, 12:16 am)
Re: larger default page sizes..., David Miller, (Wed Mar 26, 12:36 am)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 8:39 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 7:49 pm)
Re: larger default page sizes..., Peter Chubb, (Tue Mar 25, 8:25 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 8:31 pm)
RE: larger default page sizes..., Luck, Tony, (Mon Mar 24, 5:25 pm)
Re: larger default page sizes..., David Miller, (Mon Mar 24, 5:46 pm)
Re: larger default page sizes..., Paul Mackerras, (Mon Mar 24, 11:29 pm)
Re: larger default page sizes..., Andi Kleen, (Tue Mar 25, 8:05 am)
Re: larger default page sizes..., Paul Mackerras, (Wed Mar 26, 1:24 am)
Re: larger default page sizes..., Christoph Lameter, (Wed Mar 26, 1:56 pm)
Re: larger default page sizes..., Paul Mackerras, (Wed Mar 26, 11:00 pm)
Re: larger default page sizes..., David Miller, (Wed Mar 26, 7:21 pm)
Re: larger default page sizes..., Linus Torvalds, (Wed Mar 26, 11:59 am)
Re: larger default page sizes..., Paul Mackerras, (Wed Mar 26, 9:08 pm)
Re: larger default page sizes..., Paul Mackerras, (Tue Mar 25, 5:27 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 12:15 am)
Re: larger default page sizes..., Paul Mackerras, (Tue Mar 25, 7:50 am)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 7:32 pm)
RE: larger default page sizes..., Luck, Tony, (Tue Mar 25, 7:49 pm)
Re: larger default page sizes..., Nish Aravamudan, (Wed Mar 26, 11:54 am)
RE: larger default page sizes..., Luck, Tony, (Wed Mar 26, 1:05 pm)
Re: larger default page sizes..., Mel Gorman, (Wed Mar 26, 2:54 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 8:16 pm)
Re: larger default page sizes..., Dave Hansen, (Tue Mar 25, 2:27 pm)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Luck, Tony, (Mon Mar 24, 5:13 pm)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Tue Mar 25, 1:42 pm)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Luck, Tony, (Tue Mar 25, 3:09 pm)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Tue Mar 25, 3:25 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Ingo Molnar, (Fri Mar 21, 4:39 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Fri Mar 21, 1:33 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Ingo Molnar, (Fri Mar 21, 3:02 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocatio..., Christoph Lameter, (Fri Mar 21, 3:04 pm)