Re: [PATCH] cpufreq: Avoid fallback values in cpuinfo_avg_freq

Re: [PATCH] cpufreq: Avoid fallback values in cpuinfo_avg_freq

[kernel test robot]

Hello,

kernel test robot noticed "ltp.runpwtests03.fail" on:

commit: e5f9d99762e285664eea5ecbab004c8444930f22 ("[PATCH] cpufreq: Avoid fallback values in cpuinfo_avg_freq")
url: https://github.com/intel-lab-lkp/linux/commits/Jackie-Liu/cpufreq-Avoid-fallback-values-in-cpuinfo_avg_freq/20261019-145358
base: https://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git linux-next patch link: https://lore.kernel.org/all/20261019065358.66115-1-liu.yun@linux.dev/
patch subject: [PATCH] cpufreq: Avoid fallback values in cpuinfo_avg_freq

in testcase: ltp
version: ltp-x86_64-1255a3be5-1_20261017 with following parameters:

	test: power_management_tests


config: x86_64-rhel-9.4-ltp
compiler: gcc-14
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4790T CPU @ 2.70GHz (Haswell) with 16G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)



If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yi1.lai@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202610221936.40b4334f-lkp@intel.com


PATH=/lkp/benchmarks/ltp:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/lkp/lkp/src/bin
2026-10-21 16:24:03 cd /lkp/benchmarks/ltp
2026-10-21 16:24:03 export LTP_RUNTIME_MUL=2
2026-10-21 16:24:03 export LTPROOT=/lkp/benchmarks/ltp
2026-10-21 16:24:03 kirk -f power_management_tests Host information
	Hostname:   lkp-hsw-d05
	Python:     3.13.5 (main, Jun 13 2026, 14:18:01) [GCC 14.2.0]
	Directory:  /tmp/kirk.root/tmp_2s1ns12

Connecting to SUT: default

Suite: power_management_tests
─────────────────────────────
 [1;37mcpufreq_intel:  [0m [1;32mpass [0m |  [1;33mtainted [0m  (0.282s)
 [1;37mrfim01:  [0m [1;36mskip [0m |  [1;33mtainted [0m  (0.017s)
 [1;37mhigh_freq_hwp_cap_cppc:  [0m [1;36mskip [0m |  [1;33mtainted [0m  (0.015s)
 [1;37mrunpwtests03:  [0m [1;31mfail [0m |  [1;33mtainted [0m  (0.532s)
 [1;37mrunpwtests04:  [0m [1;32mpass [0m |  [1;33mtainted [0m  (0.011s)
 [1;37mrunpwtests06:  [0m [1;32mpass [0m |  [1;33mtainted [0m  (0.048s)

Execution time: 1.103s

Disconnecting from SUT: default

Target information
──────────────────
Kernel:   Linux 7.3.0-rc7+ #1 SMP PREEMPT_DYNAMIC Thu Oct 22 00:04:36 CST 2026
Cmdline:  ip=::::lkp-hsw-d05::dhcp
          root=/dev/ram0
          RESULT_ROOT=/result/ltp/power_management_tests/lkp-hsw-d05/debian-13-x86_64-20250902.cgz/x86_64-rhel-9.4-ltp/gcc-14/e5f9d99762e285664eea5ecbab004c8444930f22/0
          BOOT_IMAGE=/pkg/linux/x86_64-rhel-9.4-ltp/gcc-14/e5f9d99762e285664eea5ecbab004c8444930f22/vmlinuz-7.3.0-rc7+
          branch=internal-devel/devel-hourly-20261020-060911
          job=/lkp/jobs/scheduled/lkp-hsw-d05/ltp-power_management_tests-debian-13-x86_64-20250902.cgz-e5f9d99762e2-20261022-15031-ddtgwr-1.yaml
          user=lkp
          ARCH=x86_64
          kconfig=x86_64-rhel-9.4-ltp
          commit=e5f9d99762e285664eea5ecbab004c8444930f22
          intremap=posted_msi
          max_uptime=7200
          LKP_SERVER=internal-lkp-server
          nokaslr
          selinux=0
          debug
          apic=debug
          sysrq_always_enabled
          rcupdate.rcu_cpu_stall_timeout=100
          net.ifnames=0
          printk.devkmsg=on
          panic=-1
          softlockup_panic=1
          nmi_watchdog=panic
          oops=panic
          load_ramdisk=2
          prompt_ramdisk=0
          drbd.minor_count=8
          systemd.log_level=err
          ignore_loglevel
          console=tty0
          earlyprintk=ttyS0,115200
          console=ttyS0,115200
          vga=normal
          rw
          keep_initrds=/osimage/pkg/debian-13-x86_64-20250902.cgz/ltp-x86_64-1255a3be5-1_20261017.cgz
Machine:  unknown
Arch:     x86_64
RAM:      14035028 kB
Swap:     0 kB
Distro:   debian 13

────────────────────────
      TEST SUMMARY
────────────────────────
Suite:   power_management_tests
Runtime: 0.905s
Runs:    6

Results:
    Passed:   194
    Failed:   1
    Broken:   0
    Skipped:  2
    Warnings: 0

 [1;31mFailures: [0m
    • runpwtests03

Session stopped
LTP test details
----------------
runpwtests03: Power_Management03 1 TFAIL: CPUFREQ sysfs tests



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261022/202610221936.40b4334f-lkp@intel.com



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https://github.com/intel/lkp-tests/wiki