Comments (18)
bunkbail
commented on September 3, 2024
1
The output is shorter now but still errors out.
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LethalManBoob
commented on September 3, 2024
1
Alright ill give that a go thanks
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bunkbail
commented on September 3, 2024
1
I built the kernel myself, from the git repo branch 6.9. I use the 0001-sched-ext.patch from here and this is the config file I use to build it.
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bunkbail
commented on September 3, 2024
1
Okay I've done bisecting the config file and found the culprit. I had CONFIG_TRIM_UNUSED_KSYMS=y and you shouldn't be using that if you want to build out-of-tree modules. I had it included in my latest config file in an effort to harden the kernel using kernel-hardening-checker. Ultimately it's an oversight on my part but you'll probably want to add this info into the README.
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cyring
commented on September 3, 2024
1
Results are:
- when module previously built for
6.9withoutTRIM_UNUSED_KSYMS
insmod corefreqk.koinsmod: ERROR: could not insert module corefreqk.ko: Unknown symbol in module
- After rebuilding CoreFreq
make -jmake[1]: Entering directory '/usr/lib/modules/6.9.0-arch1-1-latest/build'
MODPOST CoreFreq/build/Module.symvers
ERROR: modpost: "cppc_get_perf_ctrs" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "x86_spec_ctrl_base" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "__clocksource_register_scale" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cpufreq_unregister_governor" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "clocksource_unregister" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cppc_get_epp_perf" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cppc_get_desired_perf" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cpuidle_get_driver" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cppc_set_enable" [CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cppc_set_perf" [CoreFreq/build/corefreqk.ko] undefined!
WARNING: modpost: suppressed 3 unresolved symbol warnings because there were too many)
make[3]: *** [scripts/Makefile.modpost:145: CoreFreq/build/Module.symvers] Error 1
make[2]: *** [/usr/lib/modules/6.9.0-arch1-1-latest/build/Makefile:1871: modpost] Error 2
make[1]: *** [Makefile:240: __sub-make] Error 2
make[1]: Leaving directory '/usr/lib/modules/6.9.0-arch1-1-latest/build'
make: *** [Makefile:102: all] Error 2
zgrep TRIM_UNUSED_KSYMS /proc/config.gz CONFIG_TRIM_UNUSED_KSYMS=y
It is now documented in README.md since commit 6caa79d
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cyring
commented on September 3, 2024
Hello,
Thanks for the issue.
Commit a4dbfc9 in branch develop should fix compilation.
Can you please give it a try ?
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bunkbail
commented on September 3, 2024
make[1]: Entering directory '/usr/src/linux-headers-6.9.0-x64v3-bore-ext'
make[1]: Leaving directory '/usr/src/linux-headers-6.9.0-x64v3-bore-ext'
cc -Wall -Wfatal-errors -pthread -D CORE_COUNT=256 -D TASK_ORDER=5 -D MAX_FREQ_HZ=7125000000 -D UBENCH=0 -D DELAY_TSC=1 \
-c x86_64/corefreqd.c -o build/corefreqd.o
cc -Wall -Wfatal-errors -pthread -D CORE_COUNT=256 -D TASK_ORDER=5 -D MAX_FREQ_HZ=7125000000 -D UBENCH=0 -D DELAY_TSC=1 \
-c x86_64/corefreqm.c -o build/corefreqm.o
cc -o build/corefreqd \
build/corefreqd.o build/corefreqm.o -lpthread -lm -lrt -lc
cc -Wall -Wfatal-errors -D CORE_COUNT=256 -D TASK_ORDER=5 -D MAX_FREQ_HZ=7125000000 -D UBENCH=0 -D DELAY_TSC=1 \
-c x86_64/corefreq-cli.c -o build/corefreq-cli.o
cc -Wall -Wfatal-errors -D CORE_COUNT=256 -D TASK_ORDER=5 -D MAX_FREQ_HZ=7125000000 -D UBENCH=0 -D DELAY_TSC=1 \
-c x86_64/corefreq-ui.c -o build/corefreq-ui.o
cc -Wall -Wfatal-errors -D CORE_COUNT=256 -D TASK_ORDER=5 -D MAX_FREQ_HZ=7125000000 -D UBENCH=0 -D DELAY_TSC=1 \
-c x86_64/corefreq-cli-rsc.c -o build/corefreq-cli-rsc.o
cc -Wall -Wfatal-errors -D CORE_COUNT=256 -D TASK_ORDER=5 -D MAX_FREQ_HZ=7125000000 -D UBENCH=0 -D DELAY_TSC=1 \
-c x86_64/corefreq-cli-json.c -o build/corefreq-cli-json.o
cc -Wall -Wfatal-errors -D CORE_COUNT=256 -D TASK_ORDER=5 -D MAX_FREQ_HZ=7125000000 -D UBENCH=0 -D DELAY_TSC=1 \
-c x86_64/corefreq-cli-extra.c -o build/corefreq-cli-extra.o
cc -o build/corefreq-cli \
build/corefreq-cli.o build/corefreq-ui.o \
build/corefreq-cli-rsc.o build/corefreq-cli-json.o \
build/corefreq-cli-extra.o -lm -lrt -lc
make[1]: Entering directory '/usr/src/linux-headers-6.9.0-x64v3-bore-ext'
CC [M] /home/bunkbail/CoreFreq/build/module/corefreqk.o
LD [M] /home/bunkbail/CoreFreq/build/corefreqk.o
MODPOST /home/bunkbail/CoreFreq/build/Module.symvers
ERROR: modpost: "cppc_get_perf_ctrs" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "processors" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "x86_spec_ctrl_base" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "__clocksource_register_scale" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cpufreq_unregister_governor" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "clocksource_unregister" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cppc_get_epp_perf" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cppc_get_desired_perf" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cpuidle_get_driver" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
ERROR: modpost: "cppc_set_enable" [/home/bunkbail/CoreFreq/build/corefreqk.ko] undefined!
WARNING: modpost: suppressed 4 unresolved symbol warnings because there were too many)
make[3]: *** [scripts/Makefile.modpost:145: /home/bunkbail/CoreFreq/build/Module.symvers] Error 1
make[2]: *** [/usr/src/linux-headers-6.9.0-x64v3-bore-ext/Makefile:2029: modpost] Error 2
make[1]: *** [Makefile:240: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-6.9.0-x64v3-bore-ext'
make: *** [Makefile:102: all] Error 2
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cyring
commented on September 3, 2024
All these API functions, since 6.9 !
Can't be the mainstream kernel ?
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bunkbail
commented on September 3, 2024
It's linux-xanmod. So that means xanmod disables these API functions? Pretty weird since Corefreq used to be working fine on kernel 6.8 (till the last update of 6.8.9. I updated to the latest stable of 6.9 then this happens.
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bunkbail
commented on September 3, 2024
Oh it's probably due to sched-ext since I use sched-ext patchset as well. They mentioned about implementing cpufreq related feature on kernel 6.9. I guess Corefreq is incompatible with sched-ext then. Should I close this issue?
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bunkbail
commented on September 3, 2024
I don't use any daemon/dkms modules. I compile directly from the git repo. Does Corefreq require a specific config in the kernel to be enabled?
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LethalManBoob
commented on September 3, 2024
I don't use any daemon/dkms modules. I compile directly from the git repo. Does Corefreq require a specific config in the kernel to be enabled?
I deleted my comment . Turns out while the client doesn't work until you do the steps I mentioned. It's overall still does not work on 6.9. it is a shame that he hasn't fixed the issue I found, however, the issue being that the client breaks when you install or uninstall a new kernel
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bunkbail
commented on September 3, 2024
I don't think your issue has anything to do with Corefreq specifically. I think you should report that to who ever packages the dkms module you're using. Sounds like the pacman hook got misconfigured or something. My error is that the kernel module itself errored out during compilation.
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cyring
commented on September 3, 2024
Which one of the xanmod package is used in the AUR and which procedure or .config to build kernel with specific scheduler ?
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cyring
commented on September 3, 2024
I built the kernel myself, from the git repo branch 6.9. I use the 0001-sched-ext.patch from here and this is the config file I use to build it.
Thanks. It will take sometimes to reproduce your environment and track the missing CoreFreq prerequisites
Meanwhile I will suggest you rename the title issue to inform that it is a patched 6.9 kernel
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bunkbail
commented on September 3, 2024
Done. I'll also try to use other configurations and try to bisect if possible.
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cyring
commented on September 3, 2024
Hello
Fyi, CoreFreq is running OK with freshly built 6.9 Arch Linux kernel
I still have to experiment CONFIG_TRIM_UNUSED_KSYMS ...
Thanks for this tip
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cyring
commented on September 3, 2024
Now building for TRIM_UNUSED_KSYMS
Rebooting ...
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