On Wed, Jan 9, 2013 at 7:21 PM, Thomas Renninger wrote:
> I still do not understand why:
>
> Kexec (kexec/firmware_memmap.c) is setting up the e820 map from:
> /sys/firmware/memmap/*
> and pass it via bootloader structures.
> And this e820 table gets immediately voided by memmap=exactmap
> and a n
On Thu, Jan 10, 2013 at 9:01 AM, Vivek Goyal wrote:
> On Thu, Jan 10, 2013 at 08:53:18AM -0800, Yinghai Lu wrote:
>> On Thu, Jan 10, 2013 at 6:26 AM, Vivek Goyal wrote:
>> >
>> > This happens only in case of kdump and not kexec. In case of kdump
>> > we want second kernel to use only selected mem
On Thu, Jan 10, 2013 at 08:53:18AM -0800, Yinghai Lu wrote:
> On Thu, Jan 10, 2013 at 6:26 AM, Vivek Goyal wrote:
> >
> > This happens only in case of kdump and not kexec. In case of kdump
> > we want second kernel to use only selected memory areas.
> >
> > In fact this is one improvement area. In
On Thu, Jan 10, 2013 at 6:26 AM, Vivek Goyal wrote:
>
> This happens only in case of kdump and not kexec. In case of kdump
> we want second kernel to use only selected memory areas.
>
> In fact this is one improvement area. Instead of using memmap= entries
> in kdump case, we should probably modif
On Thu, Jan 10, 2013 at 04:21:49AM +0100, Thomas Renninger wrote:
> On Tuesday, January 08, 2013 09:19:18 AM Yinghai Lu wrote:
> ...
> >
> > that exactmap logic still have problem:
> > We need to check exactmap at first, aka need to scan the whole comand line
> > to see if exactmap is there at fir
On Tuesday, January 08, 2013 09:19:18 AM Yinghai Lu wrote:
...
>
> that exactmap logic still have problem:
> We need to check exactmap at first, aka need to scan the whole comand line
> to see if exactmap is there at first and reset e820 tables then handle
> other memmap opt.
>
> Also please upda
On Tue, Jan 8, 2013 at 8:47 AM, Thomas Renninger wrote:
> On Tuesday, January 08, 2013 04:04:56 AM Yinghai Lu wrote:
>> On Mon, Jan 7, 2013 at 4:42 PM, Thomas Renninger wrote:
>> > memmap=256M$3584M
>>
>> may need to change to:
>>
>> memmap=256M\$\$3584M
> The problem is (beside the special char
On Tuesday, January 08, 2013 04:04:56 AM Yinghai Lu wrote:
> On Mon, Jan 7, 2013 at 4:42 PM, Thomas Renninger wrote:
> > memmap=256M$3584M
>
> may need to change to:
>
> memmap=256M\$\$3584M
The problem is (beside the special char $) that
memmap=exactmap boot param resets all e820 maps every tim
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