<div class="socmaildefaultfont" dir="ltr" style="font-family:Arial, Helvetica, sans-serif;font-size:10.5pt" ><div dir="ltr" >Here is the information from 2 different kernels. I have not been able to retrieve</div>
<div dir="ltr" >the information matching yesterday's attachments, yet, as those dumps were</div>
<div dir="ltr" >acquired in April.</div>
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<div dir="ltr" >Attached please find 2 dumps of similar material from kernels running with my</div>
<div dir="ltr" >current patches (Linux 4.4, Linux 4.12).</div>
<div dir="ltr" ><div class="socmaildefaultfont" dir="ltr" style="font-family:Arial;font-size:10.5pt" ><div class="socmaildefaultfont" dir="ltr" style="font-family:Arial;font-size:10.5pt" ><div dir="ltr" style="margin-top: 20px;" ><div style="font-size: 12pt; font-weight: bold; font-family: sans-serif;" ><font size="2" face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" ><font color="#7c7c5f" >MICHAEL W. BRINGMANN</font></font></div>
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<div><font size="2" face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" ><span style="font-weight: bold;" ><font color="#336699" >E-mail: </font></span><a href="mailto:mbringm@us.ibm.com" style="" ><font color="#555555" >mbringm@us.ibm.com</font></a></font></div></div></div></div></div></div>
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<blockquote data-history-content-modified="1" dir="ltr" style="border-left:solid #aaaaaa 2px; margin-left:5px; padding-left:5px; direction:ltr; margin-right:0px" >----- Original message -----<br>From: Michael Ellerman <mpe@ellerman.id.au><br>To: Michael Bringmann <mwb@linux.vnet.ibm.com>, Reza Arbab <arbab@linux.vnet.ibm.com><br>Cc: Balbir Singh <bsingharora@gmail.com>, linux-kernel@vger.kernel.org, Paul Mackerras <paulus@samba.org>, "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>, Bharata B Rao <bharata@linux.vnet.ibm.com>, Shailendra Singh <shailendras@nvidia.com>, Thomas Gleixner <tglx@linutronix.de>, linuxppc-dev@lists.ozlabs.org, Sebastian Andrzej Siewior <bigeasy@linutronix.de>, Michael Bringmann from Kernel Team <mbringm@us.ibm.com><br>Subject: Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc<br>Date: Wed, Jun 7, 2017 7:08 AM<br>
<div><font size="2" face="Default Monospace,Courier New,Courier,monospace" >Michael Bringmann <mwb@linux.vnet.ibm.com> writes:<br><br>> On 06/06/2017 04:48 AM, Michael Ellerman wrote:<br>>> Michael Bringmann <mwb@linux.vnet.ibm.com> writes:<br>>>> On 06/01/2017 04:36 AM, Michael Ellerman wrote:<br>>>>> Do you actually see mention of nodes 0 and 8 in the dmesg?<br>>>><br>>>> When the 'numa.c' code is built with debug messages, and the system was<br>>>> given that configuration by pHyp, yes, I did.<br>>>><br>>>>> What does it say?<br>>>><br>>>> The debug message for each core thread would be something like,<br>>>><br>>>> removing cpu 64 from node 0<br>>>> adding cpu 64 to node 8<br>>>><br>>>> repeated for all 8 threads of the CPU, and usually with the messages<br>>>> for all of the CPUs coming out intermixed on the console/dmesg log.<br>>><br>>> OK. I meant what do you see at boot.<br>><br>> Here is an example with nodes 0,2,6,7, node 0 starts out empty:<br>><br>> [ 0.000000] Initmem setup node 0<br>> [ 0.000000] NODE_DATA [mem 0x3bff7d6300-0x3bff7dffff]<br>> [ 0.000000] NODE_DATA(0) on node 7<br>> [ 0.000000] Initmem setup node 2 [mem 0x00000000-0x13ffffffff]<br>> [ 0.000000] NODE_DATA [mem 0x13ffff6300-0x13ffffffff]<br>> [ 0.000000] Initmem setup node 6 [mem 0x1400000000-0x34afffffff]<br>> [ 0.000000] NODE_DATA [mem 0x34afff6300-0x34afffffff]<br>> [ 0.000000] Initmem setup node 7 [mem 0x34b0000000-0x3bffffffff]<br>> [ 0.000000] NODE_DATA [mem 0x3bff7cc600-0x3bff7d62ff]<br>><br>> [ 0.000000] Zone ranges:<br>> [ 0.000000] DMA [mem 0x0000000000000000-0x0000003bffffffff]<br>> [ 0.000000] DMA32 empty<br>> [ 0.000000] Normal empty<br>> [ 0.000000] Movable zone start for each node<br>> [ 0.000000] Early memory node ranges<br>> [ 0.000000] node 2: [mem 0x0000000000000000-0x00000013ffffffff]<br>> [ 0.000000] node 6: [mem 0x0000001400000000-0x00000034afffffff]<br>> [ 0.000000] node 7: [mem 0x00000034b0000000-0x0000003bffffffff]<br>> [ 0.000000] Could not find start_pfn for node 0<br>> [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000000000000]<br>> [ 0.000000] Initmem setup node 2 [mem 0x0000000000000000-0x00000013ffffffff]<br>> [ 0.000000] Initmem setup node 6 [mem 0x0000001400000000-0x00000034afffffff]<br>> [ 0.000000] Initmem setup node 7 [mem 0x00000034b0000000-0x0000003bffffffff]<br>> [ 0.000000] percpu: Embedded 3 pages/cpu @c000003bf8000000 s155672 r0 d40936 u262144<br>> [ 0.000000] Built 4 zonelists in Node order, mobility grouping on. Total pages: 3928320<br>><br>> and,<br>><br>> [root@ltcalpine2-lp20 ~]# numactl --hardware<br>> available: 4 nodes (0,2,6-7)<br>> node 0 cpus:<br>> node 0 size: 0 MB<br>> node 0 free: 0 MB<br>> node 2 cpus: 16 17 18 19 20 21 22 23 32 33 34 35 36 37 38 39 56 57 58 59 60 61 62 63<br>> node 2 size: 81792 MB<br>> node 2 free: 81033 MB<br>> node 6 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31 40 41 42 43 44 45 46 47<br>> node 6 size: 133743 MB<br>> node 6 free: 133097 MB<br>> node 7 cpus: 48 49 50 51 52 53 54 55<br>> node 7 size: 29877 MB<br>> node 7 free: 29599 MB<br>> node distances:<br>> node 0 2 6 7<br>> 0: 10 40 40 40<br>> 2: 40 10 40 40<br>> 6: 40 40 10 20<br>> 7: 40 40 20 10<br>> [root@ltcalpine2-lp20 ~]#<br><br>What kernel is that running?<br><br>And can you show me the full ibm,dynamic-memory and lookup-arrays<br>properties for that system?<br><br>cheers</font><br> </div></blockquote>
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