LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "Andi Kleen" <andi@firstfloor.org>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Ingo Molnar" <mingo@elte.hu>,
	"Christoph Lameter" <clameter@sgi.com>
Cc: linux-kernel@vger.kernel.org, pj@sgi.com, linux-mm@kvack.org,
	nickpiggin@yahoo.com.au
Subject: Re: [PATCH] [11/18] Fix alignment bug in bootmem allocator
Date: Mon, 17 Mar 2008 19:06:51 -0700	[thread overview]
Message-ID: <86802c440803171906h30e3955bkb02441a99a93f85f@mail.gmail.com> (raw)
In-Reply-To: <86802c440803171427y7c9b2a54nacb0603916713033@mail.gmail.com>

On Mon, Mar 17, 2008 at 2:27 PM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
>
> On Mon, Mar 17, 2008 at 11:52 AM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
>  > On Mon, Mar 17, 2008 at 1:56 AM, Andi Kleen <andi@firstfloor.org> wrote:
>  >  > > only happen when align is large than alignment of node_boot_start.
>  >  >
>  >  >  Here's an updated version of the patch with this addressed.
>  >  >  Please review. The patch is somewhat more complicated, but
>  >  >  actually makes the code a little cleaner now.
>  >  >
>  >  >  -Andi
>  >  >
>  >  >
>  >  >  Fix alignment bug in bootmem allocator
>  >  >
>  >  >
>  >  >  Without this fix bootmem can return unaligned addresses when the start of a
>  >  >  node is not aligned to the align value. Needed for reliably allocating
>  >  >  gigabyte pages.
>  >  >
>  >  >  I removed the offset variable because all tests should align themself correctly
>  >  >  now. Slight drawback might be that the bootmem allocator will spend
>  >  >  some more time skipping bits in the bitmap initially, but that shouldn't
>  >  >  be a big issue.
>  >  >
>  >  >
>  >  >  Signed-off-by: Andi Kleen <ak@suse.de>
>  >  >
>  >  how about create local node_boot_start and node_bootmem_map that make
>  >  sure node_boot_start has bigger alignment than align input.
>
>  please check it
>

please don't use v2... it doesn't work.

YH

  reply	other threads:[~2008-03-18  2:07 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-17  1:58 [PATCH] [0/18] GB pages hugetlb support Andi Kleen
2008-03-17  1:58 ` [PATCH] [1/18] Convert hugeltlb.c over to pass global state around in a structure Andi Kleen
2008-03-17 20:15   ` Adam Litke
2008-03-18 12:05   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [2/18] Add basic support for more than one hstate in hugetlbfs Andi Kleen
2008-03-17 20:22   ` Adam Litke
2008-03-17 20:44     ` Andi Kleen
2008-03-18 12:23   ` Mel Gorman
2008-03-23 10:38   ` KOSAKI Motohiro
2008-03-23 11:28     ` Andi Kleen
2008-03-23 11:30       ` KOSAKI Motohiro
2008-03-17  1:58 ` [PATCH] [3/18] Convert /proc output code over to report multiple hstates Andi Kleen
2008-03-18 12:28   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [4/18] Add basic support for more than one hstate in hugetlbfs Andi Kleen
2008-03-17  8:09   ` Paul Jackson
2008-03-17  8:15     ` Andi Kleen
2008-03-17 20:28   ` Adam Litke
2008-03-18 14:11   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [5/18] Expand the hugetlbfs sysctls to handle arrays for all hstates Andi Kleen
2008-03-18 14:34   ` Mel Gorman
2008-03-18 16:49     ` Andi Kleen
2008-03-18 17:01       ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [6/18] Add support to have individual hstates for each hugetlbfs mount Andi Kleen
2008-03-18 14:10   ` Adam Litke
2008-03-18 15:02   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [7/18] Abstract out the NUMA node round robin code into a separate function Andi Kleen
2008-03-18 15:42   ` Mel Gorman
2008-03-18 15:47     ` Andi Kleen
2008-03-18 16:04       ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [8/18] Add a __alloc_bootmem_node_nopanic Andi Kleen
2008-03-18 15:54   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [9/18] Export prep_compound_page to the hugetlb allocator Andi Kleen
2008-03-17  1:58 ` [PATCH] [10/18] Factor out new huge page preparation code into separate function Andi Kleen
2008-03-17 20:31   ` Adam Litke
2008-03-18 16:02   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [11/18] Fix alignment bug in bootmem allocator Andi Kleen
2008-03-17  2:19   ` Yinghai Lu
2008-03-17  7:02     ` Andi Kleen
2008-03-17  7:17       ` Yinghai Lu
2008-03-17  7:31         ` Yinghai Lu
2008-03-17  7:41           ` Andi Kleen
2008-03-17  7:53             ` Yinghai Lu
2008-03-17  8:10               ` Yinghai Lu
2008-03-17  8:17                 ` Andi Kleen
2008-03-17  8:56               ` Andi Kleen
2008-03-17 18:52                 ` Yinghai Lu
2008-03-17 21:27                   ` Yinghai Lu
2008-03-18  2:06                     ` Yinghai Lu [this message]
2008-03-18 16:18   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [12/18] Add support to allocate hugetlb pages that are larger than MAX_ORDER Andi Kleen
2008-03-18 16:27   ` Mel Gorman
2008-04-09 16:05   ` Andrew Hastings
2008-04-09 17:56     ` Andi Kleen
2008-03-17  1:58 ` [PATCH] [13/18] Add support to allocate hugepages of different size with hugepages= Andi Kleen
2008-03-18 16:32   ` Mel Gorman
2008-03-18 16:45     ` Andi Kleen
2008-03-18 16:46       ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [14/18] Clean up hugetlb boot time printk Andi Kleen
2008-03-18 16:37   ` Mel Gorman
2008-03-17  1:58 ` [PATCH] [15/18] Add support to x86-64 to allocate and lookup GB pages in hugetlb Andi Kleen
2008-03-17  1:58 ` [PATCH] [16/18] Add huge pud support to hugetlbfs Andi Kleen
2008-03-17  1:58 ` [PATCH] [17/18] Add huge pud support to mm/memory.c Andi Kleen
2008-03-17  1:58 ` [PATCH] [18/18] Implement hugepagesz= option for x86-64 Andi Kleen
2008-03-17  9:29   ` Paul Jackson
2008-03-17  9:59     ` Andi Kleen
2008-03-17 10:02       ` Paul Jackson
2008-03-17  3:11 ` [PATCH] [0/18] GB pages hugetlb support Paul Jackson
2008-03-17  7:00   ` Andi Kleen
2008-03-17  7:00     ` Paul Jackson
2008-03-17  7:29       ` Andi Kleen
2008-03-17  5:35 ` Paul Jackson
2008-03-17  6:58   ` Andi Kleen
2008-03-17  9:26 ` Paul Jackson
2008-03-17 15:05 ` Adam Litke
2008-03-17 15:33   ` Andi Kleen
2008-03-17 15:59     ` Adam Litke

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=86802c440803171906h30e3955bkb02441a99a93f85f@mail.gmail.com \
    --to=yhlu.kernel@gmail.com \
    --cc=akpm@linux-foundation.org \
    --cc=andi@firstfloor.org \
    --cc=clameter@sgi.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mingo@elte.hu \
    --cc=nickpiggin@yahoo.com.au \
    --cc=pj@sgi.com \
    --subject='Re: [PATCH] [11/18] Fix alignment bug in bootmem allocator' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).