Samuel Thibault, on mer. 20 déc. 2017 18:26:37 +0100, wrote: > Brice Goglin, on mer. 20 déc. 2017 18:16:34 +0100, wrote: > > Le 20/12/2017 à 18:06, Samuel Thibault a écrit : > > > It has only one NUMA node, thus triggering the code I patched over. > > > > Well, this has been working fine for a while, since that's my daily > > development machine and all our jenkins slaves. > > > > Can you give the usually requested details about the OS, kernel, > > hwloc-gather-topology? hwloc-gather-cpuid if the x86 backend is involved? > > Your commit 301c0f94e0a54823bfd530c36b5f9c9d9862332b seems to have fixed > it. > > It's Debian Buster, kernel 4.14.0, and attached gathers.
Mmm, it seems the x86 backend gets triggered somehow: this is the first
hwloc_topology_reconnect call:
#0 hwloc_topology_reconnect (topology=topology@entry=0x55555577f060,
flags=flags@entry=0)
at /home/samy/recherche/hwloc/hwloc/hwloc/topology.c:2910
#1 0x00007ffff7bc93e2 in hwloc_x86_discover (backend=0x55555577f890) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology-x86.c:1264
#2 0x00007ffff7ba1595 in hwloc_discover (topology=0x55555577f060) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:3008
#3 hwloc_topology_load (topology=0x55555577f060) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:3584
#4 0x00005555555584f6 in main (argc=<optimized out>, argv=<optimized out>) at
/home/samy/recherche/hwloc/hwloc/utils/lstopo/lstopo.c:995
and then the second:
#0 hwloc_topology_reconnect (topology=0x55555577f060, flags=0) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:2910
#1 0x00007ffff7ba1707 in hwloc_discover (topology=0x55555577f060) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:3103
#2 hwloc_topology_load (topology=0x55555577f060) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:3584
#3 0x00005555555584f6 in main (argc=<optimized out>, argv=<optimized out>) at
/home/samy/recherche/hwloc/hwloc/utils/lstopo/lstopo.c:995
and a third:
#0 hwloc_topology_reconnect (topology=0x55555577f060, flags=0) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:2910
#1 0x00007ffff7ba1789 in hwloc_discover (topology=0x55555577f060) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:3149
#2 hwloc_topology_load (topology=0x55555577f060) at
/home/samy/recherche/hwloc/hwloc/hwloc/topology.c:3584
#3 0x00005555555584f6 in main (argc=<optimized out>, argv=<optimized out>) at
/home/samy/recherche/hwloc/hwloc/utils/lstopo/lstopo.c:995
(these are all with git 220ee3eb926ca6bfa175d9700ab56d14a554cea4)
I have attached the cpuid/ directory.
Samuel
cpuid.tgz
Description: application/gtar-compressed
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