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[RFE] Turbo boost test fails in v7 cpuscaling test with Intel Westmere-EX E7-8837 CPU Description of problem: We tested 2 types of CPUs to verify the cpuscaling test fail symptom. E7-8870 CPU (CPU frequency from 2.4GHz up to 2.77GHz) - 3 speed steps up when the turbo boost is active - Passed E7-8837 CPU (CPU frequency from 2.67GHz up to 2.80GHz) - 1 speed step up only in turbo boost active - Failed Version-Release number of selected component (if applicable): v7-1.3-46.el6 How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: v7 cpuscaling test script unable to verify E7-8837 CPU Expected results: Run cpuscaling test with wider frequency for both Improve the turbo boost check for the cpuscaling script Additional info:
Please retest with the v7 1.4 beta (R30).
sfdc #00530264 in reference to Bug 713543 https://bugzilla.redhat.com/show_bug.cgi?id=713543 I am coming to the conclusion that something is broken with the Red Hat 6.1 x86_64 kernel. I swapped out a pair of E5645 Xeon's from one of my two CPUSCLAING failing system and replced them with slightly earlier E5620 Xeon. The CPUSCALING test still fails under the x86_64 kernel. Both of these processor models (E5620 and E5645) passed teh CPUSCALING using the RHEL 5.4 x86_64 kernel, as evidenced by my completed certification: https://hardware.redhat.com/show.cgi?id=585367 There is no evidence that the CPUSCALING even makes any attempt to run, because, according to the test description, The test is scheduled when the hardware detection routines find the following directories in /sys containing more than one cpu frequency: /sys/devices/system/cpu/cpu<number>/cpufreq These directories DO NOT EXIST after the x86_64 kernel boots. (root)/root/Desktop# ls /sys/devices/system/cpu/ cpu0/ cpu15/ cpu8/ perf_events/ cpu1/ cpu2/ cpu9/ possible cpu10/ cpu3/ cpufreq/ present cpu11/ cpu4/ cpuidle/ sched_mc_power_savings cpu12/ cpu5/ kernel_max sched_smt_power_savings cpu13/ cpu6/ offline cpu14/ cpu7/ online and /sys/devices/system/cpu/cpufreq is empty.... (root)/root/Desktop# ls /sys/devices/system/cpu/cpufreq (root)/root/Desktop# I have attached the results with teh E5620 processors. Last update (both files attached) BIOS 59 FIXES CPUSCALING BUG.7z Simon
Created attachment 527538 [details] CPUSCALING FAIL with E5620 processors and x86_64 kernel
Created attachment 527539 [details] BIOS 59 FIXES CPUSCALING BUG
Closing as fixed via BIOS update in comment 4.