Re: [hwloc-users] lstopo hangs for centos 7

Thanks. I pushed the fix to git branches. It will be included in future releases (but 1.11.3 isn't planned anytime soon). It might be good to report a bug to VMware. I don't think they are supposed to advertise the x2APIC CPU feature unless they support CPUID 0xb leaf. Brice Le 03/02/2016

Re: [hwloc-users] lstopo hangs for centos 7

Hi Brice, Thanks for the workaround -- it works very good. Attached please find the two output file after run hwloc-gather-cpuid. Let me after this is fixed! thanks, Jianjun On Sun, Jan 31, 2016 at 9:48 PM, Brice Goglin wrote: > Thanks for the debugging. I guess VMware

Re: [hwloc-users] lstopo hangs for centos 7

Thanks for the debugging. I guess VMware doesn't properly emulate the CPUID instruction. Please do: 1) take a tarball from git master at https://ci.inria.fr/hwloc/job/master-0-tarball/ and build it 2) export HWLOC_COMPONENTS=-x86 in your terminal 3) do utils/hwloc/hwloc-gather-cpuid 4) tar cfj

Re: [hwloc-users] lstopo hangs for centos 7

I did a debug build. Found it loops forever in this loop in topology-x86.c:404. /* Get package/core/thread information from cpuid 0x0b * (Intel x2APIC) */ if (cpuid_type == intel && has_x2apic(features)) { unsigned level, apic_nextshift, apic_number, apic_type, apic_id = 0,

Re: [hwloc-users] lstopo hangs for centos 7

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. 0x77bcb32c in hwloc_x86_cpuid (edx=, ecx=, ebx=0x7fffdbec, eax=) at /home/wen/Downloads/hwloc-1.11.2/include/private/cpuid-x86.h:67 67 __asm__( On

Re: [hwloc-users] lstopo hangs for centos 7

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: 0x77bce13c in look_proc () from /lib64/libhwloc.so.5 Always the same place. On Sun, Jan 31, 2016 at 12:29 AM, Brice Goglin

Re: [hwloc-users] lstopo hangs for centos 7

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