Home » Mailing list archives » linux-kernel » 2008 » March » 21

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

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: David Miller
Subject: Re: [11/14] vcompound: Fallbacks for order 1 stack allocations on IA64 and x86
Date: Friday, March 21, 2008 - 12:25 am

From: Christoph Lameter <clameter@sgi.com>
Date: Thu, 20 Mar 2008 23:17:14 -0700


I would be very careful with this especially on IA64.

If the TLB miss or other low-level trap handler depends upon being
able to dereference thread info, task struct, or kernel stack stuff
without causing a fault outside of the linear PAGE_OFFSET area, this
patch will cause problems.

It will be difficult to debug the kinds of crashes this will cause
too.
--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
[11/14] vcompound: Fallbacks for order 1 stack allocations ..., Christoph Lameter, (Thu Mar 20, 11:17 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., David Miller, (Fri Mar 21, 12:25 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Ingo Molnar, (Fri Mar 21, 1:39 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Fri Mar 21, 10:33 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Fri Mar 21, 10:40 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Ingo Molnar, (Fri Mar 21, 12:02 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Fri Mar 21, 12:04 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., David Miller, (Fri Mar 21, 2:57 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Andi Kleen, (Fri Mar 21, 3:30 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Mon Mar 24, 11:27 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Mon Mar 24, 12:53 pm)
larger default page sizes..., David Miller, (Mon Mar 24, 1:37 pm)
Re: larger default page sizes..., Christoph Lameter, (Mon Mar 24, 2:05 pm)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Luck, Tony, (Mon Mar 24, 2:13 pm)
RE: larger default page sizes..., Luck, Tony, (Mon Mar 24, 2:25 pm)
Re: larger default page sizes..., David Miller, (Mon Mar 24, 2:43 pm)
Re: larger default page sizes..., David Miller, (Mon Mar 24, 2:46 pm)
Re: larger default page sizes..., Paul Mackerras, (Mon Mar 24, 8:29 pm)
Re: larger default page sizes..., David Miller, (Mon Mar 24, 9:15 pm)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Andi Kleen, (Tue Mar 25, 12:51 am)
Re: larger default page sizes..., Paul Mackerras, (Tue Mar 25, 4:50 am)
Re: larger default page sizes..., Andi Kleen, (Tue Mar 25, 5:05 am)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Tue Mar 25, 10:42 am)
Re: larger default page sizes..., Christoph Lameter, (Tue Mar 25, 10:48 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Tue Mar 25, 10:55 am)
Re: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Andi Kleen, (Tue Mar 25, 11:07 am)
Re: larger default page sizes..., Dave Hansen, (Tue Mar 25, 11:27 am)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Luck, Tony, (Tue Mar 25, 12:09 pm)
RE: [11/14] vcompound: Fallbacks for order 1 stack allocat ..., Christoph Lameter, (Tue Mar 25, 12:25 pm)
Re: larger default page sizes..., Paul Mackerras, (Tue Mar 25, 2:27 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 4:22 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 4:32 pm)
Re: larger default page sizes..., Peter Chubb, (Tue Mar 25, 4:41 pm)
RE: larger default page sizes..., Luck, Tony, (Tue Mar 25, 4:49 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 4:49 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 5:16 pm)
Re: larger default page sizes..., Peter Chubb, (Tue Mar 25, 5:25 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 5:31 pm)
Re: larger default page sizes..., David Mosberger-Tang, (Tue Mar 25, 5:34 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 5:39 pm)
Re: larger default page sizes..., Peter Chubb, (Tue Mar 25, 5:57 pm)
Re: larger default page sizes..., John Marvin, (Tue Mar 25, 9:16 pm)
Re: larger default page sizes..., David Miller, (Tue Mar 25, 9:36 pm)
Re: larger default page sizes..., Paul Mackerras, (Tue Mar 25, 10:24 pm)
Re: larger default page sizes..., Nish Aravamudan, (Wed Mar 26, 8:54 am)
Re: larger default page sizes..., Linus Torvalds, (Wed Mar 26, 8:59 am)
RE: larger default page sizes..., Luck, Tony, (Wed Mar 26, 10:05 am)
Re: larger default page sizes..., Christoph Lameter, (Wed Mar 26, 10:56 am)
Re: larger default page sizes..., Mel Gorman, (Wed Mar 26, 11:54 am)
Re: larger default page sizes..., David Miller, (Wed Mar 26, 4:21 pm)
Re: larger default page sizes..., Paul Mackerras, (Wed Mar 26, 6:08 pm)
Re: larger default page sizes..., Paul Mackerras, (Wed Mar 26, 8:00 pm)