Public bug reported:
[ Impact ]
DKMS make.log for oss4-4.2-build2020 for kernel 6.17.0-7-generic (x86_64)
Fri Dec 19 03:04:27 UTC 2025
make: Entering directory '/usr/src/linux-headers-6.17.0-7-generic'
make[1]: Entering directory '/var/lib/dkms/oss4/4.2-build2020/build/core'
warning: the compiler differs from the one used to build the kernel
The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu
13.3.0-6ubuntu2~24.04) 13.3.0
You are using: gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
CC [M] oss_core.o
CC [M] os_linux.o
CC [M] oss_ac97.o
CC [M] oss_audio_core.o
os_linux.c:16:10: fatal error: oss_config.h: No such file or directory
16 | #include <oss_config.h>
| ^~~~~~~~~~~~~~
compilation terminated.
make[3]: ***
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287:
os_linux.o] Error 1
make[3]: *** Waiting for unfinished jobs....
oss_audio_core.c:26:10: fatal error: oss_config.h: No such file or directory
26 | #include <oss_config.h>
| ^~~~~~~~~~~~~~
compilation terminated.
In file included from oss_ac97.c:19:
oss_config.h:37:10: fatal error: ossddk/oss_exports.h: No such file or directory
37 | #include <ossddk/oss_exports.h>
| ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: ***
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287:
oss_audio_core.o] Error 1
make[3]: ***
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287:
oss_ac97.o] Error 1
oss_core.c:21:10: fatal error: ossddk/oss_exports.h: No such file or directory
21 | #include <ossddk/oss_exports.h>
| ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: ***
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287:
oss_core.o] Error 1
make[2]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:2016: .] Error 2
make[1]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:248: __sub-make]
Error 2
make[1]: Leaving directory '/var/lib/dkms/oss4/4.2-build2020/build/core'
make: *** [Makefile:248: __sub-make] Error 2
make: Leaving directory '/usr/src/linux-headers-6.17.0-7-generic'
[ Test case ]
Install the latest linux-6.17 kernel on Noble:
$ sudo add-apt-repository ppa:canonical-kernel-team/ppa3
$ sudo apt install linux-generic-hwe-24.04-edge
Install oss4-dkms:
$ sudo apt install oss4-dkms
Module built and installed successfully
Load the module:
$ sudo modprobe
Modules loaded successfully
The same procedure should be repeated on linux-6.8 to test for possible
regressions.
[ Fix ]
Patch to fix Kbuild:
-debian/patches/Kbuild-Use-ccflags-y-instead-of-EXTRA_CFLAGS.patch
[ Regression potential ]
We may experience regressions in systems that are using the oss4
drivers, especially with kernels >= 6.8 kernel.
** Affects: oss4 (Ubuntu)
Importance: Undecided
Status: New
** Affects: oss4 (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: oss4 (Ubuntu Noble)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2136849
Title:
oss4-dkms FTBS in Noble with the linux-6.17 kernel
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