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3:36 PM
Hello can someone please help me with a question regarding kernel modules development?
2
Q: Compiling external kernel module fails on Debian bookworm due to missing resolve_btfids

giannisl9I am new to linux and I am trying to compile an external kernel module on a Debian bookworm virtualization (UTM). Makefile obj-m += hello_world.o PWD := $(CURDIR) all: make -C /lib/modules/`uname -r`/build M=$(PWD) clean: make -C /lib/modules/`uname -r`/build M=$(PWD) clean The compi...

 
4:24 PM
Hi Giannh. I'm afraid I can't help, I know next to nothing about this, but we do have several debian devs active on the site. If you don't get an answer by tomorrow, ping me here and I can add a bounty for you. @giannisl9
 
 
2 hours later…
6:16 PM
@terdon thanks a lot!
 
6:52 PM
@giannisl9 tipota!
 
tapatio
 
@jesse_b :P
Sorry, that's Greek for "nothing", which is used as an answer to "thanks" similarly to the English "don't mention it".
 
I like it
 
7:14 PM
I am trying to figure out whether my cache is enabled but am seeing contradictory things:
# getconf -a | grep -i cache
LEVEL1_ICACHE_SIZE                 0
LEVEL1_ICACHE_ASSOC                0
LEVEL1_ICACHE_LINESIZE             0
LEVEL1_DCACHE_SIZE                 0
LEVEL1_DCACHE_ASSOC                0
LEVEL1_DCACHE_LINESIZE             0
LEVEL2_CACHE_SIZE                  0
LEVEL2_CACHE_ASSOC                 0
LEVEL2_CACHE_LINESIZE              0
LEVEL3_CACHE_SIZE                  0
LEVEL3_CACHE_ASSOC                 0
LEVEL3_CACHE_LINESIZE              0
LEVEL4_CACHE_SIZE                  0
As you can see dmesg shows there is cache, but getconf returns none. So does my CPU have cache enabled or not?
also /sys/devices/system/cpu/cpu0 does not contain a cache directory
And this says there is cache (cf 5th line):
root@beaglebone:~# cat /proc/meminfo
MemTotal:         494956 kB
MemFree:          349508 kB
MemAvailable:     431712 kB
Buffers:           15876 kB
Cached:            68988 kB
SwapCached:            0 kB
Active:            70504 kB
Inactive:          40764 kB
Active(anon):      26932 kB
Inactive(anon):     4936 kB
Active(file):      43572 kB
Inactive(file):    35828 kB
Unevictable:           0 kB
Mlocked:               0 kB
HighTotal:             0 kB
HighFree:              0 kB
LowTotal:         494956 kB
 
Hi @LandonZeKepitelOfGreytBritn. Please post a question on the site where you can include details such as your operating system, type of hardware, what cache you are referring to (disk? memory? CPU?) and where more people can see it (this room isn't very active).
 
CPU cache
alright
 
I'm active in this room but
 
But boy can you shimmy! :)
 

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