Folks, Just as an update, this is affecting anyone that wants to use VirtualBox with kernel 5.4 and 5.5, when it is just downloaded from the kernel repository.
You can see more activity at https://forums.virtualbox.org/viewtopic.php?f=7&t=96297. Virtualbox maintainers have also confirmed the above and closed the bug as it is not something they control. See https://www.virtualbox.org/ticket/19244 for their response. I am not sure if there is a different place to post this to get other visibility, as the header of this report mentions an RC build, but this is happening in any released 5.4 kernel, as well as 5.5. Thanks. ** Bug watch added: Virtualbox Trac #19244 http://www.virtualbox.org/ticket/19244 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1849348 Title: linux 5.4-rc4 Unable to build simple kernel module Status in linux package in Ubuntu: Confirmed Bug description: Cannot build a kernel module, errors in Linux headers using the current RC4 (also tried RC3, and daily) mainline kernel packages from http://kernel.ubuntu.com/~kernel-ppa/mainline Am able to build against a 5.4-rc4 kernel level directly from upstream kernel git repo (on a different platform). To recreate error: Install linux headers, etc from current 5.4 RC. (used 5.4.0-050400rc4 dated 10/20 for this test) --[/tmp/builderr/Makefile]-- EXTRA_CFLAGS += obj-m += conftest.o -- [EOF] -- --[/tmp/builderr/conftest.c]-- #include <linux/module.h> void conftest(void) { } MODULE_LICENSE("GPL-2"); -- [EOF] -- Command: make -C /lib/modules/5.4.0-050400rc4-generic/build M=/tmp/builderr/ V=2 &> make_err.log make.log is attached. Expected output (using above Makefile and conftest.c, performed a build on a system with 4.15.0-66 linux packages installed): -- [expected output] -- make -C /lib/modules/4.15.0-66-generic/build/ M=/tmp/builderr make: Entering directory '/usr/src/linux-headers-4.15.0-66-generic' CC [M] /tmp/builderr/conftest.o Building modules, stage 2. MODPOST 1 modules CC /tmp/builderr/conftest.mod.o LD [M] /tmp/builderr/conftest.ko make: Leaving directory '/usr/src/linux-headers-4.15.0-66-generic' ---- ========= lsb_release -rd Description: Ubuntu 18.04.3 LTS Release: 18.04 uname -a Linux ubuntu_base 5.4.0-050400rc4-generic #201910202130 SMP Sun Oct 20 21:32:54 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux dpkg -l | grep "linux\-[a-z]*\-" ii linux-headers-5.4.0-050400rc4 5.4.0-050400rc4.201910202130 all Header files related to Linux kernel version 5.4.0 ii linux-headers-5.4.0-050400rc4-generic 5.4.0-050400rc4.201910202130 amd64 Linux kernel headers for version 5.4.0 on 64 bit x86 SMP ii linux-image-unsigned-5.4.0-050400rc4-generic 5.4.0-050400rc4.201910202130 amd64 Linux kernel image for version 5.4.0 on 64 bit x86 SMP ri linux-libc-dev:amd64 4.15.0-65.74 amd64 Linux Kernel Headers for development ii linux-modules-5.4.0-050400rc4-generic 5.4.0-050400rc4.201910202130 amd64 Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1849348/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
