| Quozl | Hello. I'm trying to solve a radeon regression, and having trouble rebuilding the Ubuntu kernel on focal. The build fails and mentions x86 but I'm on x86_64. Log: http://dev.laptop.org/~quozl/z/1l9lyf.txt I'm using https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel as instructions. | 09:42 |
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| Quozl | Hello. I'm trying to solve a radeon regression, and having trouble rebuilding the Ubuntu kernel on focal. The build fails and mentions x86 but I'm on x86_64. Log: http://dev.laptop.org/~quozl/z/1l9lyf.txt I'm using https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel as instructions. | 22:13 |
| jeremy31 | Quozl: Does the patch involve changing anything in the headers? | 22:14 |
| Quozl | jeremy31: no, just radeon_display.c deep down. | 22:15 |
| jeremy31 | Quozl: I would just try to build the needed modules then | 22:15 |
| Quozl | hmm, i'd appreciate a pointer to how to do that. i do recall a linux.conf.au talk about it ten years ago, but things will have changed. | 22:16 |
| jeremy31 | Quozl: Just cd into the directory where the changes are made in terminal and do> make -C /lib/modules/$(uname -r)/build M=$(pwd) modules | 22:17 |
| jeremy31 | Then copy the module to where the original is after renaming the original | 22:18 |
| Quozl | (for reference, the regression is incorrect pll1 setup for my system, possibly because of bad edid. https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati/issues/164) | 22:18 |
| Quozl | thanks. i'll look into that. | 22:18 |
| jeremy31 | Quozl: It is what I usually do for wireless changes I make. I can't see building an entire kernel for a change to one module | 22:19 |
| Quozl | jeremy31: oddly, it fails, not able to find an include file, as if it can't reach the existing file in the include/ directory of the kernel tree ... http://dev.laptop.org/~quozl/y/1l9xs3.txt | 22:23 |
| * Quozl hops on his bike | 22:30 | |
| jeremy31 | Ok, do a> make -C /lib/modules/$(uname -r)/build M=$(pwd) clean | 22:31 |
| jeremy31 | then try the make -C /lib/modules/$(uname -r)/build M=$(pwd) modules from /kernel/drivers/gpu/drm/ | 22:32 |
| Quozl | jeremy31: thanks, a substantial improvement, i'll debug further why some things are undeclared ... http://dev.laptop.org/~quozl/z/1l9yjk.txt | 23:18 |
| jeremy31 | Quozl: Might have to remove some things from the Makefile in the drm directory to ignore the i2c | 23:20 |
| jeremy31 | or you might have to run the make command from /drivers/gpu | 23:20 |
| Quozl | clean, make modules in drivers/gpu, same undeclared. did i do something wrong after copying /boot/config-$(uname -r) ? make oldconfig asks questions, which is a surprise. | 23:22 |
| jeremy31 | Quozl: I haven't copied any files from /boot/config or used make oldconfig when doing wifi drivers | 23:23 |
| Quozl | jeremy31: okay, thanks. how have you configured when doing wifi drivers? | 23:24 |
| jeremy31 | Did you clone from git.ubuntu.com or enable source code repos? | 23:24 |
| Quozl | a kernel repo clone with a remote git://kernel.ubuntu.com/ubuntu/ubuntu-focal.git and i'm on a branch of my own based on ubuntu-focal/master ... and i've "git clean" to get rid of everything else. so in theory it's a clone from git.ubuntu.com | 23:25 |
| jeremy31 | I normally enable the source code repos, and do> apt-get source linux-modules-extra-$(uname -r) | 23:26 |
| jeremy31 | Then I make my changes and most times it works | 23:26 |
| Quozl | 'k, thanks. | 23:27 |
| Quozl | must mean there's something magic between a git clone and the source package. i'll give it a try. | 23:27 |
| jeremy31 | Quozl: I think your original problem with building an entire kernel was related to the directory name as it must have been an exact match to a currently installed version | 23:33 |
| Quozl | ah. | 23:37 |
| Quozl | jeremy31: certainly much better with the source package, but still an odd compilation failure, claim of a missing pblk-trace.h header file, yet it is certainly present; drivers/lightnvm/pblk-trace.h log:http://dev.laptop.org/~quozl/z/1l9zCF.txt | 23:48 |
| Quozl | it is not, however, present in /usr/src/linux-headers-5.8.0-43-generic ... hmm. | 23:49 |
| jeremy31 | I don't know what to do to fix that, that must have been for an entire kernel build | 23:53 |
| Quozl | i had climbed the source tree each time i hit a snag. | 23:53 |
| jeremy31 | Quozl: Any chance the fix is in the 5.10 kernels? | 23:55 |
| Quozl | i can test. i've reviewed all changes since, and none have a commit message that explains the problem, so not likely. the bugs in the trackers are still open. | 23:56 |
| jeremy31 | Quozl: have a bug report filed? | 23:58 |
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