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=96297. Virtualbox
maintainers have also confirmed the above
I've determined what is going on.
The linux headers from http://kernel.ubuntu.com/~kernel-ppa/mainline are
built with a gcc 9 version. This causes CONFIG_CC_HAS_ASM_INLINE to be
set to true.
However the gcc level that is installed by default on ubuntu 18.04.3 is
still gcc 7.4. This level
See also:
https://github.com/torvalds/linux/commit/eb111869301e15b737315a46c913ae82bd19eb9d
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https://bugs.launchpad.net/bugs/1849348
Title:
linux 5.4-rc4 Unable to build
I think I might have found the
"source" of the problem.
https://github.com/torvalds/linux/commit/40576e5e63ea5eeab814de7af83ad09dd64134ee
Replacing the gcc-7 version with gcc-8 seems to "fix" the problem
root@ubuntu_base:~/builderr# uname -a
Linux ubuntu_base 5.4.0-050400rc5-generic
Unable to run apport-collect command since this is being reported for a
mainline kernel.
If this isn't the "correct" location to report this error, please let me
know.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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