On 01/13/2014 07:33 PM, Toshi Kani wrote:
> On Mon, 2014-01-13 at 18:39 -0500, Prarit Bhargava wrote:
>>
>> On 01/13/2014 03:31 PM, KOSAKI Motohiro wrote:
>>> On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava wrote:
On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
>
>
>
On 01/13/2014 07:33 PM, Toshi Kani wrote:
On Mon, 2014-01-13 at 18:39 -0500, Prarit Bhargava wrote:
On 01/13/2014 03:31 PM, KOSAKI Motohiro wrote:
On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava pra...@redhat.com wrote:
On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
On Fri, 10 Jan
On Tue, 2014-01-14 at 09:52 +0800, Dave Young wrote:
> On 01/13/14 at 06:09pm, Toshi Kani wrote:
> > On Mon, 2014-01-13 at 16:53 -0800, H. Peter Anvin wrote:
> > > On 01/13/2014 04:33 PM, Toshi Kani wrote:
> > > >
> > > > I do not think it makes sense. You needed memmap=exactmap as a
> > > >
On 01/13/14 at 06:09pm, Toshi Kani wrote:
> On Mon, 2014-01-13 at 16:53 -0800, H. Peter Anvin wrote:
> > On 01/13/2014 04:33 PM, Toshi Kani wrote:
> > >
> > > I do not think it makes sense. You needed memmap=exactmap as a
> > > workaround because the kernel did not boot with the firmware's
On Mon, 2014-01-13 at 17:29 -0800, H. Peter Anvin wrote:
> On 01/13/2014 05:09 PM, Toshi Kani wrote:
> >
> > In majority of the cases, memmap=exactmap is used for kdump and the
> > firmware info is sane. So, I think we should keep NUMA enabled since it
> > could be useful when multiple CPUs are
On 01/13/2014 05:09 PM, Toshi Kani wrote:
>
> In majority of the cases, memmap=exactmap is used for kdump and the
> firmware info is sane. So, I think we should keep NUMA enabled since it
> could be useful when multiple CPUs are enabled for kdump.
>
Rather unlikely since all of the kdump
On Mon, 2014-01-13 at 16:53 -0800, H. Peter Anvin wrote:
> On 01/13/2014 04:33 PM, Toshi Kani wrote:
> >
> > I do not think it makes sense. You needed memmap=exactmap as a
> > workaround because the kernel did not boot with the firmware's memory
> > info. So, it's broken, and you requested the
On 01/13/2014 04:33 PM, Toshi Kani wrote:
>
> I do not think it makes sense. You needed memmap=exactmap as a
> workaround because the kernel did not boot with the firmware's memory
> info. So, it's broken, and you requested the kernel to ignore the
> firmware info.
>
> Why do you think memory
On Mon, 2014-01-13 at 18:39 -0500, Prarit Bhargava wrote:
>
> On 01/13/2014 03:31 PM, KOSAKI Motohiro wrote:
> > On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava wrote:
> >>
> >>
> >> On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
> >>>
> >>>
> >>> On Fri, 10 Jan 2014, Prarit Bhargava wrote:
>
On 01/13/2014 03:31 PM, KOSAKI Motohiro wrote:
> On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava wrote:
>>
>>
>> On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
>>>
>>>
>>> On Fri, 10 Jan 2014, Prarit Bhargava wrote:
>>>
kdump uses memmap=exactmap and mem=X values to configure the memory
On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava wrote:
>
>
> On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
>>
>>
>> On Fri, 10 Jan 2014, Prarit Bhargava wrote:
>>
>>> kdump uses memmap=exactmap and mem=X values to configure the memory
>>> mapping for the kdump kernel. If memory is hotadded
On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava pra...@redhat.com wrote:
On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
On Fri, 10 Jan 2014, Prarit Bhargava wrote:
kdump uses memmap=exactmap and mem=X values to configure the memory
mapping for the kdump kernel. If memory is hotadded
On 01/13/2014 03:31 PM, KOSAKI Motohiro wrote:
On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava pra...@redhat.com wrote:
On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
On Fri, 10 Jan 2014, Prarit Bhargava wrote:
kdump uses memmap=exactmap and mem=X values to configure the memory
mapping
On Mon, 2014-01-13 at 18:39 -0500, Prarit Bhargava wrote:
On 01/13/2014 03:31 PM, KOSAKI Motohiro wrote:
On Sun, Jan 12, 2014 at 6:46 PM, Prarit Bhargava pra...@redhat.com wrote:
On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
On Fri, 10 Jan 2014, Prarit Bhargava wrote:
kdump
On 01/13/2014 04:33 PM, Toshi Kani wrote:
I do not think it makes sense. You needed memmap=exactmap as a
workaround because the kernel did not boot with the firmware's memory
info. So, it's broken, and you requested the kernel to ignore the
firmware info.
Why do you think memory hotplug
On Mon, 2014-01-13 at 16:53 -0800, H. Peter Anvin wrote:
On 01/13/2014 04:33 PM, Toshi Kani wrote:
I do not think it makes sense. You needed memmap=exactmap as a
workaround because the kernel did not boot with the firmware's memory
info. So, it's broken, and you requested the kernel to
On 01/13/2014 05:09 PM, Toshi Kani wrote:
In majority of the cases, memmap=exactmap is used for kdump and the
firmware info is sane. So, I think we should keep NUMA enabled since it
could be useful when multiple CPUs are enabled for kdump.
Rather unlikely since all of the kdump memory is
On Mon, 2014-01-13 at 17:29 -0800, H. Peter Anvin wrote:
On 01/13/2014 05:09 PM, Toshi Kani wrote:
In majority of the cases, memmap=exactmap is used for kdump and the
firmware info is sane. So, I think we should keep NUMA enabled since it
could be useful when multiple CPUs are enabled
On 01/13/14 at 06:09pm, Toshi Kani wrote:
On Mon, 2014-01-13 at 16:53 -0800, H. Peter Anvin wrote:
On 01/13/2014 04:33 PM, Toshi Kani wrote:
I do not think it makes sense. You needed memmap=exactmap as a
workaround because the kernel did not boot with the firmware's memory
info.
On Tue, 2014-01-14 at 09:52 +0800, Dave Young wrote:
On 01/13/14 at 06:09pm, Toshi Kani wrote:
On Mon, 2014-01-13 at 16:53 -0800, H. Peter Anvin wrote:
On 01/13/2014 04:33 PM, Toshi Kani wrote:
I do not think it makes sense. You needed memmap=exactmap as a
workaround because
On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
>
>
> On Fri, 10 Jan 2014, Prarit Bhargava wrote:
>
>> kdump uses memmap=exactmap and mem=X values to configure the memory
>> mapping for the kdump kernel. If memory is hotadded during the boot of
>> the kdump kernel it is possible that the page
On 01/11/2014 11:35 AM, 7egg...@gmx.de wrote:
On Fri, 10 Jan 2014, Prarit Bhargava wrote:
kdump uses memmap=exactmap and mem=X values to configure the memory
mapping for the kdump kernel. If memory is hotadded during the boot of
the kdump kernel it is possible that the page tables for
On Fri, 10 Jan 2014, Prarit Bhargava wrote:
> kdump uses memmap=exactmap and mem=X values to configure the memory
> mapping for the kdump kernel. If memory is hotadded during the boot of
> the kdump kernel it is possible that the page tables for the new memory
> cause the kdump kernel to run
On Fri, 10 Jan 2014, Prarit Bhargava wrote:
kdump uses memmap=exactmap and mem=X values to configure the memory
mapping for the kdump kernel. If memory is hotadded during the boot of
the kdump kernel it is possible that the page tables for the new memory
cause the kdump kernel to run out
On Fri, 2014-01-10 at 14:04 -0500, Prarit Bhargava wrote:
:
> arch/x86/kernel/e820.c | 10 +-
> drivers/acpi/acpi_memhotplug.c |7 ++-
> include/linux/memory_hotplug.h |3 +++
> 3 files changed, 18 insertions(+), 2 deletions(-)
>
> diff --git
On Fri, Jan 10, 2014 at 02:04:58PM -0500, Prarit Bhargava wrote:
> kdump uses memmap=exactmap and mem=X values
Minor nit. Kdump only uses memmap=exactmap and not mem=X. mem=X is there
for debugging. So lets fix the changelog.
[..]
> static int __init parse_memmap_opt(char *str)
> {
> +
kdump uses memmap=exactmap and mem=X values to configure the memory
mapping for the kdump kernel. If memory is hotadded during the boot of
the kdump kernel it is possible that the page tables for the new memory
cause the kdump kernel to run out of memory.
Since the user has specified a specific
kdump uses memmap=exactmap and mem=X values to configure the memory
mapping for the kdump kernel. If memory is hotadded during the boot of
the kdump kernel it is possible that the page tables for the new memory
cause the kdump kernel to run out of memory.
Since the user has specified a specific
On Fri, Jan 10, 2014 at 02:04:58PM -0500, Prarit Bhargava wrote:
kdump uses memmap=exactmap and mem=X values
Minor nit. Kdump only uses memmap=exactmap and not mem=X. mem=X is there
for debugging. So lets fix the changelog.
[..]
static int __init parse_memmap_opt(char *str)
{
+ int
On Fri, 2014-01-10 at 14:04 -0500, Prarit Bhargava wrote:
:
arch/x86/kernel/e820.c | 10 +-
drivers/acpi/acpi_memhotplug.c |7 ++-
include/linux/memory_hotplug.h |3 +++
3 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/e820.c
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