On 27/08/15 22:20 , "yhlu.ker...@gmail.com on behalf of Yinghai Lu"
wrote:
>On Fri, Jun 26, 2015 at 4:31 PM, Steffen Persvold wrote:
>> We’ve encountered an issue in a special case where we have a sparse E820 map
>> [1].
>>
>> Basically the memory hot
ked twice with the same struct memory_block once for node0 (which
gets a match) and once for node1. However when all the pfns are mapped, it just
goes through the range just fine without a paging request.
Cheers,
--
Steffen Persvold
Chief Architect NumaChip, Numascale AS
Tel: +47 23 16 71 88 Fax: +47
file?)
Any insight into this from the great minds behind this would be highly
appreciated.
Kind regards,
--
Steffen Persvold
Chief Architect NumaChip, Numascale AS
Tel: +47 23 16 71 88 Fax: +47 23 16 71 80 Skype: spersvold
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On 29 Apr 2014, at 3:20 , Borislav Petkov wrote:
> On Tue, Apr 29, 2014 at 09:33:09AM +0200, Andreas Herrmann wrote:
>> I am sure, it's because some server systems had MMIO ECS access not
>> enabled in BIOS. I can't remember which systems were affected.
>
> Ok, now AMD people: what's the story w
On 4/9/2013 12:24 PM, Borislav Petkov wrote:
On Tue, Apr 09, 2013 at 11:45:44AM +0200, Steffen Persvold wrote:
Hmm, yes of course. This of course breaks on our slave servers when
the shared mechanism doesn't work properly (i.e NB not visible). Then
all cores gets individual kobjects and
On 4/9/2013 11:38 AM, Borislav Petkov wrote:
On Tue, Apr 09, 2013 at 11:25:16AM +0200, Steffen Persvold wrote:
Why not let all cores just create their individual kobject and skip
this "shared" nb->bank4 concept ? Any disadvantage to that (apart from
the obvious storage bloat?).
W
On 4/4/2013 9:07 PM, Borislav Petkov wrote:
On Thu, Apr 04, 2013 at 08:05:46PM +0200, Steffen Persvold wrote:
It made more sense (to me) to skip the creation of MC4 all together
if you can't find the matching northbridge since you can't reliably
do the dec_and_test() reference count
On 4/4/2013 9:07 PM, Borislav Petkov wrote:
On Thu, Apr 04, 2013 at 08:05:46PM +0200, Steffen Persvold wrote:
It made more sense (to me) to skip the creation of MC4 all together
if you can't find the matching northbridge since you can't reliably
do the dec_and_test() reference count
;> offlining cores.
>>
>> Signed-off-by: Steffen Persvold
>> Signed-off-by: Daniel J Blueman
>
> Huh, what's up?
>
> This one is almost reverting 21c5e50e15b1a which you wrote in the first
> place. What's happening? What stale pointer access, where? We have the
ing quirk that reduces
the size of the MMCONFIG region you register for bus 0.
Just brainstorming here; it's not obvious to me yet what the best solution is.
Bjorn
Kind regards,
--
Steffen Persvold, Chief Architect NumaChip
Numascale AS - www.numascale.com
Tel: +47 92 49 25 54 Skype
so
technically this could fit into a u16 instead of a u32 (you'll have to
shift left by 3 instead of 8).
However, to allow some flexibility I think a u32 is better and I think
we can live with those two extra bytes per struct member, or ?
Cheers,
--
Steffen Persvold, Chief Architect NumaChi
y are a limited
resource (allocated at boot time). My solution for now was to use :
#if defined(__ia64__)
int flag = GFP_DMA;
#else
int flag = 0;
#endif
Maybe IA64 could implement GFP_HIGHMEM (as on i386) so that if no flags were used you
were
guaranteed to get 32bit memory ???
Regards
--
ou use GFP_DMA on
IA64 you are ensured that the memory you get is below 4G and not 16M as on i386, hence
no
bounce buffers are needed. On Alpha GFP_DMA is not limited at all (I think). Correct
me if
I'm wrong, but I really think there should be a general way of allocating memory that
is
32bit ad
proxy
setup (and 100% idle almost all the time). Just for the record : We also tried standard
RH7.1 kernels (2.4.2-2 and 2.4.3) with the same results.
Any ideas ? Anybody experienced similar behaviour ? It looks like a resource leak
somewhere in the IP filter code to me.
Regards,
--
Ste
->no_page
function called)
Any help appreciated.
--
Steffen Persvold Systems Engineer
Email : mailto:[EMAIL PROTECTED] Scali AS (http://www.scali.com)
Tlf : (+47) 22 62 89 50 Olaf Helsets vei 6
Fax : (+47) 22 62 89 51 N-0621 Oslo, Norway
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"L. K." wrote:
> I haven't encountered any CPU with builtin temperature sensors.
>
Eh, all Pentium class cpus have a build in sensor for core temperature (I believe
Athlons
too). It's just the logic which is outside in form of a A/D converter connected to a
I2C
bu
__get_free_pages(GFP_ATOMIC, order) always return
physical contiguous memory ?
All feedback appreciated,
--
Steffen Persvold Systems Engineer
Email : mailto:[EMAIL PROTECTED] Scali AS (http://www.scali.com)
Tlf : (+47) 22 62 89 50 Olaf Helsets vei 6
Fax : (+47) 22
on RedHat)
and is used to dump/modify PCI configuration space (/proc/bus/pci). If you know
how to use these tools to dump PNP bios, please tell us.
Regards
--
Steffen Persvold Systems Engineer
Email : mailto:[EMAIL PROTECTED] Scali AS (http://www.scali.com)
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0, 0x0, 0x2, 0xbc55)
kernel .text 0xc010 0xc01352bc 0xc01353bc
0xc0106ea7 system_call+0x33
kernel .text 0xc010 0xc0106e74 0xc0106eac
[0]more>
--
Steffen PersvoldSystems Engineer
Email :
[EMAIL PROTECTED] wrote:
> On Sun, 29 Apr 2001, Steffen Persvold wrote:
>
> > I've learned it the hard way, I have two types : Compaq DL360 (rev 5) and a
> > Tyan S2510 (rev 6). On the compaq machine I constantly get data corruption on
> > the last double word (4
Gérard Roudier wrote:
>
> On Sun, 29 Apr 2001, Steffen Persvold wrote:
>
> > Hi all,
> >
> > I just compiled 2.4.4 and are running it on a Serverworks LE motherboard.
> > Whenever I try to add a write-combining region, it gets rejected. I took a peek
> > i
. I have several rev 06 and they are
working fine with this patch.
Best regards,
--
Steffen PersvoldSystems Engineer
Email : mailto:[EMAIL PROTECTED]Scali AS (http://www.scali.com)
Norway : Tel : (+47) 2262 8950 Olaf Helsets vei 6
Fax : (
If the application didn't initialize the buffer by memset or anything, all the
pages maps to the same page (the zero page) right ? So if a map_user_kiobuf()
call is made on this buffer, will it sort this out and map the pages to real
ones ?
Any response greatly appreciated,
--
Steffen Persvold
(it has a nice level of -20) ?
Best regards,
--
Steffen PersvoldSystems Engineer
Email : mailto:[EMAIL PROTECTED]Scali AS (http://www.scali.com)
Norway : Tel : (+47) 2262 8950 Olaf Helsets vei 6
Fax : (+47) 2262 8951 N-0621 Os
e I've had problems with so far, is the Compaq DL360 which seem to have
disabled the SMB on the OSB4 and
instead using another approach (proprietary). This could be the problem with the Dell
machines too (2450, 2550, 1550).
Best regards
--
Steffen PersvoldSystems Eng
s390 and sparc64 kernels but not on others. Any plans on when this is
done ?
Best regards,
--
Steffen Persvold Systems Engineer
Email : mailto:[EMAIL PROTECTED] Scali AS (http://www.scali.com)
Tlf : (+47) 22 62 89 50 Olaf Helsets vei 6
Fax : (+47) 22 62 89 51
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