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Groups > linux.debian.kernel > #81433
| From | Jy Deng <1700011628@pku.edu.cn> |
|---|---|
| Newsgroups | linux.debian.bugs.dist, linux.debian.kernel |
| Subject | Bug#1059969: linux-image-6.6.9-amd64: CONFIG_MODULE_COMPRESS_XZ=y breaks cpu frequency scaling governor kernel module |
| Date | 2024-01-04 16:00 +0100 |
| Message-ID | <HSxmp-KZ5-3@gated-at.bofh.it> (permalink) |
| References | (2 earlier) <HSwJH-Kxm-1@gated-at.bofh.it> <HSwJH-Kxm-1@gated-at.bofh.it> <HSxmp-KZ5-5@gated-at.bofh.it> <HSsd3-Hdd-5@gated-at.bofh.it> <HSxmp-KZ5-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Cross-posted to 2 groups.
在 2024/1/4 22:26, Jy Deng 写道: > On Thu, 04 Jan 2024 15:04:53 +0100 Diederik de Haas > <didi.debian@cknow.org> wrote: > > On Thursday, 4 January 2024 14:34:10 CET Jy Deng wrote: > > > 3. I find that if CONFIG_CPU_FREQ_GOV_POWERSAVE=m, then though such > > > module cannot be in use after boot at once, but it is possible to > > > manually modprobe them. So it may indicate that to use > > > CONFIG_CPU_FREQ_GOV_POWERSAVE=m with CONFIG_MODULE_COMPRESS_XZ=y is > > > actually possible. The problem we find here may be not so fundamental. > > > > That's actually how it always worked. > > $ cat > /sys/devices/system/cpu/cpufreq/policy0/scaling_available_governors > > > > likely only lists 'performance' and 'schedutil'. > > /lib/modules/$(uname -r)/kernel/drivers/cpufreq/ lists several more > governors > > and when you modprobe them, they get added to > 'scaling_available_governors'. > > And also to `cpupower frequency-info` -> 'available cpufreq governors'. > > >So if you can verify whether it works with 'modprobe' then this is > not a bug. > > > The problem is that those modules of governors, when without kernel > module compression, they will be automatically loaded. However, when > module compression like CONFIG_MODULE_COMPRESS_XZ is set as 'y', then > I have to manually load them by 'modprobe'. While it is OK to say this > is not a bug, it is also important to find out what makes such difference. >
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Bug#1059969: linux-image-6.6.9-amd64: CONFIG_MODULE_COMPRESS_XZ=y breaks cpu frequency scaling governor kernel module Luca Boccassi <bluca@debian.org> - 2024-01-04 12:40 +0100
Bug#1059969: linux-image-6.6.9-amd64: CONFIG_MODULE_COMPRESS_XZ=y breaks cpu frequency scaling governor kernel module Jy Deng <1700011628@pku.edu.cn> - 2024-01-04 14:50 +0100
Bug#1059969: linux-image-6.6.9-amd64: CONFIG_MODULE_COMPRESS_XZ=y breaks cpu frequency scaling governor kernel module Diederik de Haas <didi.debian@cknow.org> - 2024-01-04 15:20 +0100
Bug#1059969: linux-image-6.6.9-amd64: CONFIG_MODULE_COMPRESS_XZ=y breaks cpu frequency scaling governor kernel module Jy Deng <1700011628@pku.edu.cn> - 2024-01-04 16:00 +0100
Bug#1059969: linux-image-6.6.9-amd64: CONFIG_MODULE_COMPRESS_XZ=y breaks cpu frequency scaling governor kernel module Jy Deng <1700011628@pku.edu.cn> - 2024-01-04 16:50 +0100
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