Help needed so a complete NOOB can compile a kernel, please
#1
OK, so spurred into action by Deathcrow here, I decided the time had come for me to have another bash at compiling a kernel. "It's pretty easy. " - Ha Wink

1) git clone https://github.com/ayufan-rock64/linux-m...kernel.git - no problems. (Will need to update at some stage but that can wait!)

2) Needed to install pkg-config, libncurses-dev, bison, flex and fakeroot as well

3) make menuconfig - could presumably spend months here but for a first run went with the defaults. Presume .config turns into /boot/config... in due course so can peruse ayufan versions and load/mod them when I get smarter.

4) make -j6 bindeb-pkg was going really well until

Code:
... 
 CC      arch/arm64/kernel/asm-offsets.s
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/recordmcount
  HOSTCC  scripts/sortextable
  HOSTLD  scripts/dtc/dtc
  HOSTCC  scripts/asn1_compiler
  UPD     include/generated/asm-offsets.h
  CALL    scripts/checksyscalls.sh
  HOSTCC  scripts/extract-cert
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
scripts/extract-cert.c:21:10: fatal error: openssl/bio.h: No such file or directory
 #include <openssl/bio.h>
          ^~~~~~~~~~~~~~~
compilation terminated.
scripts/Makefile.host:90: recipe for target 'scripts/extract-cert' failed
make[4]: *** [scripts/extract-cert] Error 1
make[4]: *** Waiting for unfinished jobs....
  LDS     arch/arm64/kernel/vdso/vdso.lds
  VDSOA   arch/arm64/kernel/vdso/gettimeofday.o
  VDSOA   arch/arm64/kernel/vdso/note.o
  VDSOA   arch/arm64/kernel/vdso/sigreturn.o
  VDSOL   arch/arm64/kernel/vdso/vdso.so.dbg
  VDSOSYM include/generated/vdso-offsets.h
Makefile:1045: recipe for target 'scripts' failed
make[3]: *** [scripts] Error 2
debian/rules:4: recipe for target 'build' failed
make[2]: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2
scripts/package/Makefile:79: recipe for target 'bindeb-pkg' failed
make[1]: *** [bindeb-pkg] Error 2
Makefile:1337: recipe for target 'bindeb-pkg' failed
make: *** [bindeb-pkg] Error 2

Presumably I need to do something useful to hold openssl together but not sure what - help/suggestions welcome please!

Also I seem to be trying to build pretty much in the footsteps of Ayufan (dpkg-buildpackage: info: source package linux-4.18.0-rc8-76686-g45828c4db727) - cant find the right place to put my label so it is clear I created the resulting mess (and to distinguish my efforts eventually in extlinux.conf ?)

TIA
ROCKPro64 v2.1 2GB, SM961 128GB NVMe for rootfs, HDMI video & sound, Bluetooth keyboard & mouse
Started Bionic minimal - now Cosmic, Openbox desktop for general purpose daily PC.
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#2
(09-10-2018, 05:21 PM)dukla2000 Wrote: Presumably I need to do something useful to hold openssl together but not sure what - help/suggestions welcome please!
OK - sorted this bit - need libssl-dev. First hack compile 55 minutes on my ROCKpro64. Not sure if it even boots, now to take the config part seriously.
ROCKPro64 v2.1 2GB, SM961 128GB NVMe for rootfs, HDMI video & sound, Bluetooth keyboard & mouse
Started Bionic minimal - now Cosmic, Openbox desktop for general purpose daily PC.
  Reply
#3
I want to thank you for documenting your progress. Thanks to a few of your post I was able to build the kernel, enable the zram module, and push my clocks to 2016/1512MHz. That little bit of speed boost sure did help my plex server. I was seeing transcodes for a 1080p file doing 0.9. Now I am seeing 1.1, which is enough for real time encoding. I know this likely won't apply to all the files plex tries to transcode, but the little bit of performance boost is still encouraging.
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#4
(09-24-2018, 04:15 PM)Takenover83 Wrote: I want to thank you for documenting your progress. Thanks to a few of your post I was able to build the kernel, enable the zram module, and push my clocks to 2016/1512MHz. That little bit of speed boost sure did help my plex server. I was seeing transcodes for a 1080p file doing 0.9. Now I am seeing 1.1, which is enough for real time encoding. I know this likely won't apply to all the files plex tries to transcode, but the little bit of performance boost is still encouraging.

Pleasure. Yup 2 weeks ago I had never compiled a kernel, now I am compiling 2 or 3 times a day playing with options (and breaking quite a few things!) I guess my main advice would be to take care of your .config: sometimes I have got carried away with too many changes at once and then struggled with a barely working machine to recover.

What kernel are you playing with? I am playing with 4.18 and one unresolved issue is the scheduling tends to favour the A53 cores. But I have been running the A72s at 2108 with no noticeable problem - cpuminer ran fine for 10 minutes (via sbc-bench -T 70) without hitting 80C and obviously loads all the cores, as does a full kernel compile for about 25 minutes.
ROCKPro64 v2.1 2GB, SM961 128GB NVMe for rootfs, HDMI video & sound, Bluetooth keyboard & mouse
Started Bionic minimal - now Cosmic, Openbox desktop for general purpose daily PC.
  Reply
#5
First build was 4.18. Did you just edit rk3399-opp.dtsi manually? Like so? Or did you use another method?
Code:
};
opp08 {
opp-hz = /bits/ 64 <2108000000>;
opp-microvolt = <1250000>;
};
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#6
Effectively yes. In fact first step was to edit rk3399-rockpro64.dts to use rk3399-op1-opp.dtsi then I just changed the 2016 there to 2108. (Seems to be a pattern 16 08 00 for some reason.)
ROCKPro64 v2.1 2GB, SM961 128GB NVMe for rootfs, HDMI video & sound, Bluetooth keyboard & mouse
Started Bionic minimal - now Cosmic, Openbox desktop for general purpose daily PC.
  Reply


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