Can you send the output of this command on both nodes?
cat /sys/devices/system/cpu/cpu{?,??}/cache/index3/shared_cpu_map | uniq -cAnd send the XML output of lstopo on both nodes too (lstopo foo.xml and send foo.xml). I want to check that this is indeed a kernel regression. Thanks Brice Le 09/07/2015 16:26, Åke Sandgren a écrit : > Yes the BIOS is the same. > > Anything else i should check? > > On 07/09/2015 04:10 PM, Brice Goglin wrote: >> Hello >> >> The 3.13 kernel reports invalid L3 cache information in sysfs. 0x3f0 is >> not possible on this processor, it should be either 0x3f or 0xfc >> (there's exactly one L3 per NUMA node, with the same 6 cores in them). >> >> Can you check whether the BIOS is also the same on these machines? (see >> files in /sys/class/dmi/id/) >> >> If the machine and BIOS are the same, then it's a regression in Ubuntu's >> 3.13 kernel. However that would be surprising since these AMD processors >> have been properly supported by Linux for several years already. >
