@Pavaman, thanks for testing. The patch that was submitted upstream by IBM to fix this bug ( f9652d5cae04eb5e85303c087f5842d320499c65 ) was applied (cleanly) to bionic to generate that kernel. It's not clear to me why that doesn't fix your problem since it was identified as the only required fix for this issue.
Could you please try this kernel: https://kernel.ubuntu.com/~kmously/1719545/kernel-kmously-438fd5a-TfNM/ and could you please also show the output of uname -a as well ? Thanks -- 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
