** Changed in: linux-snapdragon (Ubuntu)
Status: Incomplete => Invalid
** Changed in: linux-snapdragon (Ubuntu Bionic)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1860527
Title:
sysfs files under /sys/devices/system/cpu/cpufreq/ disappear after
upgrading kernel
Status in linux-snapdragon package in Ubuntu:
Invalid
Status in linux-snapdragon source package in Bionic:
Invalid
Bug description:
sysfs files under /sys/devices/system/cpu/cpufreq/ disappear after upgrading
kernel.
Kernel: Linux dragon410c 4.15.0-1071-snapdragon #78-Ubuntu SMP Thu Jan 16
22:30:28 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux
Steps:
1. Flash following image and boot the DUT
https://people.canonical.com/~ppisati/ubuntu_embedded/ubuntu-embedded-18.04-dragon410c.img.xz
2. Enable proposed repository
3. Upgrade kernel to 4.15.0-1071
4. Reboot
5. Check file in /sys/devices/system/cpu/cpufreq/
Expected result:
Files are still there after upgrading kernel.
Actual result:
Files under /sys/devices/system/cpu/cpufreq/ disappear after upgrading kernel.
Hardware infomation:
Dragonboard 410c
ip address: 10.101.51.17
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