------- Comment From pavsu...@in.ibm.com 2019-03-06 23:35 EDT------- The kernel does not fix the original issue and the issue is still occurring.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1719545 Title: [P9][LTCTest][Opal][FW910] cpupower monitor shows multiple stop Idle_Stats Status in The Ubuntu-power-systems project: Confirmed Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Bug description: == Comment: #0 - PAVAMAN SUBRAMANIYAM <pavsu...@in.ibm.com> - 2017-06-29 02:30:22 == ---Problem Description--- cpupower monitor shows multiple stop Idle_Stats ---uname output--- Linux zz376p1 4.10.0-26-generic #30~16.04.1-Ubuntu SMP Tue Jun 27 09:38:48 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = P9 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Install a P9 8375-42A Hardware with Ubuntu 16.04.3 OS. Then execute the cpupower monitor command to fetch all the Idle_Stats values. root@zz376p1:~# cpupower monitor |Idle_Stats PKG |CORE|CPU | snoo | stop | stop 0| 8| 0| 0.00| 0.00| 2.79 0| 8| 1| 0.00| 0.00| 70.68 0| 8| 2| 0.00| 0.00| 99.87 0| 8| 3| 0.00| 0.00| 67.28 0| 12| 4| 0.00| 0.00| 5.17 0| 12| 5| 0.00| 0.00| 12.50 0| 12| 6| 0.00| 0.00| 99.74 0| 12| 7| 0.00| 0.00| 0.00 8|2048| 8| 0.00| 0.00| 22.14 8|2048| 9| 0.00| 0.00| 102.3 8|2048| 10| 0.00| 0.00| 0.00 8|2048| 11| 0.00| 0.00| 99.97 8|2052| 12| 0.00| 0.00| 99.70 8|2052| 13| 0.00| 0.00| 23.86 8|2052| 14| 0.00| 0.00| 113.1 8|2052| 15| 0.00| 0.00| 0.00 As can be seen it shows 2 columns for stop. root@zz376p1:~# uname -a Linux zz376p1 4.10.0-26-generic #30~16.04.1-Ubuntu SMP Tue Jun 27 09:38:48 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux root@zz376p1:~# cat /etc/os-release NAME="Ubuntu" VERSION="16.04.2 LTS (Xenial Xerus)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.04.2 LTS" VERSION_ID="16.04" HOME_URL="http://www.ubuntu.com/"; SUPPORT_URL="http://help.ubuntu.com/"; BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"; VERSION_CODENAME=xenial UBUNTU_CODENAME=xenial root@zz376p1:~# cat /proc/cpuinfo | tail processor : 15 cpu : POWER9 (raw), altivec supported clock : 2600.000000MHz revision : 1.0 (pvr 004e 0100) timebase : 512000000 platform : PowerNV model : 8375-42A machine : PowerNV 8375-42A firmware : OPAL Userspace tool common name: /usr/bin/cpupower The userspace tool has the following bit modes: 64-bit Userspace rpm: linux-tools-common Userspace tool obtained from project website: na *Additional Instructions for pavsu...@in.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. -Attach ltrace and strace of userspace application. . There are 3 idle_stats (3 states) in this system. root@zz376p1:/sys/devices/system/cpu/cpu0/cpuidle/state2# cpupower monitor -l Monitor "Idle_Stats" (3 states) - Might overflow after 4294967295 s snoo [T] -> snooze stop [T] -> stop0_lite stop [T] -> stop1_lite root@zz376p1:/sys/devices/system/cpu/cpu0/cpuidle/state2# cpupower idle-info CPUidle driver: powernv_idle CPUidle governor: menu analyzing CPU 0: Number of idle states: 3 Available idle states: snooze stop0_lite stop1_lite snooze: Flags/Description: snooze Latency: 0 Usage: 224 Duration: 423 stop0_lite: Flags/Description: stop0_lite Latency: 0 Usage: 1685 Duration: 530522 stop1_lite: Flags/Description: stop1_lite Latency: 4 Usage: 12693 Duration: 5405898106 root@zz376p1:/sys/devices/system/cpu/cpu0/cpuidle/state2# cpupower monitor -l Monitor "Idle_Stats" (3 states) - Might overflow after 4294967295 s snoo [T] -> snooze stop [T] -> stop0_lite stop [T] -> stop1_lite root@zz376p1:/sys/devices/system/cpu/cpu0/cpuidle/state2# cpupower idle-info CPUidle driver: powernv_idle CPUidle governor: menu analyzing CPU 0: Number of idle states: 3 Available idle states: snooze stop0_lite stop1_lite snooze: Flags/Description: snooze Latency: 0 Usage: 272 Duration: 905 stop0_lite: Flags/Description: stop0_lite Latency: 0 Usage: 2141 Duration: 536399 stop1_lite: Flags/Description: stop1_lite Latency: 4 Usage: 15396 Duration: 6625668881 cpu monitor will print the results of all the 3 available idle_stats . The first stop -> stop0_lite stats and The second stop -> stop1_lite stats. cpupower monitor header prints the header list by getting the name of the idle stats. name (name description) snoo [T] -> snooze stop [T] -> stop0_lite stop [T] -> stop1_lite We can change the header to be more meaningful so user won't interpret it as 2 columns for stop. May be we need to change the code to print the header to use name description instead of name. . I will work on the patch and get it resolve. == Comment: #8 - PAVAMAN SUBRAMANIYAM <pavsu...@in.ibm.com> - 2017-06-30 03:42:01 == I have executed the command again with the fixed cpupower utility. Submitted patch upstream and awaiting response. https://lkml.org/lkml/2017/7/31/177 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1719545/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
