One C file and a few header files. Canonical isn't very responsive and I posted this question a few places. Sorry about the late reply. John -----Original Message----- From: Greg KH <greg@xxxxxxxxx> Sent: Thursday, November 24, 2022 4:07 PM On Thu, Nov 24, 2022 at 01:48:08PM -0500, John Aron wrote: > Hello - > > > > I have an idea of where to begin: our kernel code compiles and works > on Red Hat, CentOS, and Fedora. In Ubuntu 20.04, I have an error. > > > > root@form:/home/john/thor-linux/Kernel/ubuntu20.04# make > > rmmod: ERROR: Module thor is not currently loaded > > make: [Makefile:7: all] Error 1 (ignored) > > make[1]: Entering directory '/usr/src/linux-headers-5.4.0-131-generic' > > CC [M] /home/john/thor-linux/Kernel/ubuntu22.04/thor.o > > /home/john/thor-linux/Kernel/ubuntu22.04/thor.o: warning: objtool: > _Controller_process_response_map()+0x1b3: unreachable instruction > > Building modules, stage 2. > > MODPOST 1 modules > > CC [M] /home/john/thor-linux/Kernel/ubuntu22.04/thor.mod.o > > LD [M] /home/john/thor-linux/Kernel/ubuntu22.04/thor.ko > > make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-131-generic' > > make[1]: Entering directory '/usr/src/linux-headers-5.4.0-131-generic' > > CLEAN /home/john/thor-linux/Kernel/ubuntu22.04/Module.symvers > > make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-131-generic' > > #@sudo dmesg -C > > #@sudo insmod /usr/local/etc/thor.ko > > filename: /usr/local/etc/thor.ko > > version: 0.1 > > description: THOR KMOD > > author: Aronetics > > license: GPL > > srcversion: BC856FA85DB2FEFD38A1B2A > > depends: > > retpoline: Y > > name: thor > > vermagic: 5.4.0-131-generic SMP mod_unload modversions > > #@sudo dmesg > > root@form:/home/john/thor-linux/Kernel/ubuntu20.04# > <mailto:root@form:/home/john/thor-linux/Kernel/ubuntu20.04#> > > > > Every 2.0s: tail -n30 /var/lib/dkms/thor/1.0.1/build/make.log > > > > DKMS make.log for thor-1.0.1 for kernel 5.4.0-131-generic (x86_64) > > Thu 24 Nov 2022 01:10:33 PM EST > > make: Entering directory '/usr/src/linux-headers-5.4.0-131-generic' > > CC [M] /var/lib/dkms/thor/1.0.1/build/thor.o > > /var/lib/dkms/thor/1.0.1/build/thor.o: warning: objtool: > _Controller_process_response_map()+0x1b3: unreachable instruction > > Building modules, stage 2. > > MODPOST 1 modules > > CC [M] /var/lib/dkms/thor/1.0.1/build/thor.mod.o > > LD [M] /var/lib/dkms/thor/1.0.1/build/thor.ko > > make: Leaving directory '/usr/src/linux-headers-5.4.0-131-generic' > > > > Is this an error in objtool on Ubuntu within > /usr/src/linux-headers-5.4.0-${26-130}/tools/objtool ? Do you have a pointer to your code anywhere? Do you have .S files in it, or is it all C files? And did you ask the Canonical developers about this? You should have a support contract you are paying for with them, so why not use that? thanks, greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies