Hi, On v4.9 and v4.10 kernel, when I booted my box which has two nodes and each nodes have 48 logical cpus (Hyper Threading is enabled), the logical cpu number is discontinuity as follows. node 0: 0-23, 256-279 node 1: 24-47, 280-303 So the following shell script fail to run. --- #!/bin/bash for ((cpu = 0; cpu < `nproc`; cpu++)) do taskset -c $cpu ./do_work done --- I think the logical cpu number should be continuity like as v4.8 and earlier because user applications may expect the number is continuity. I believe this behavior was introduced by the patch series beginning with the following commit. f7c2883 x86/acpi: Enable acpi to register all possible cpus at boot time Do anyone have ideas for fix this behavior...? FYI. v4.8 kernel, the logical cpu number is continuity as follows. node 0: 0-23, 48-71 node 1: 24-47, 72-95 - Masayoshi Mizuma -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
