I just realize that yum on centos 7 use hwloc version 1.7.
I Downloaded 1.11.2 version source, built and install. Still hangs.
0x00007ffff7bcb32c in hwloc_x86_cpuid (edx=<synthetic pointer>,
ecx=<synthetic pointer>, ebx=0x7fffffffdbec,
eax=<synthetic pointer>) at
/home/wen/Downloads/hwloc-1.11.2/include/private/cpuid-x86.h:67
67 __asm__(
On Sun, Jan 31, 2016 at 8:09 PM, Jianjun Wen <jianjun...@gmail.com> wrote:
> Hi Brice
> Thanks for the reply.
> I use yum install hwloc to install it.
> The cpu usage is 100%.
> I got this after Ctrl + C, and c, several times:
>
> 0x00007ffff7bce13c in look_proc () from /lib64/libhwloc.so.5
>
> Always the same place.
>
> On Sun, Jan 31, 2016 at 12:29 AM, Brice Goglin <brice.gog...@inria.fr>
> wrote:
>
>> Hello
>>
>> Thanks for the report. I have never seen this issue. I have CentOS 7 VMs
>> (kvm), lstopo works fine. Did you try this in similar VMs in the past?
>>
>> When you say "latest hwloc", do you mean "build latest tarball" (1.11.2)
>> or "installed latest centos package" (1.7)?
>>
>> First thing to check: run lstopo, let it hang, and check under top
>> whether it uses 100% CPU or 0% CPU (to see if that's an infinite loop or
>> not).
>>
>> Then, run it under gdb:
>> $ gdb lstopo
>> Type 'r' and Enter
>> When things hang, do ctrl-c
>> Type "where" and send the output to us.
>>
>> If you got 100% in top above, you should do this multiple time. After
>> "where", type 'c' to go back to the execution, ctrl+c again, "where" again
>> and check whether the backtrace is similar.
>>
>> Brice
>>
>>
>>
>>
>> Le 31/01/2016 04:48, Jianjun Wen a écrit :
>>
>> I installed the latest centos 7 (1151) on VM (vmware), then installed
>> latest hwloc.
>> lstopo command hangs.
>>
>> hwloc_topology_load()
>> function call also hangs.
>>
>> Is this an know issue? How to find out what's wrong?
>>
>> thanks
>> --
>> -Jianjun Wen
>> Wancube.com - 3D photography
>> Phone: 408 888 7023
>>
>>
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>> Link to this post:
>> http://www.open-mpi.org/community/lists/hwloc-users/2016/01/1247.php
>>
>>
>>
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>> Link to this post:
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>>
>
>
>
> --
> -Jianjun Wen
> Wancube.com - 3D photography
> Phone: 408 888 7023
>
--
-Jianjun Wen
Wancube.com - 3D photography
Phone: 408 888 7023
