[Kernel-packages] [Bug 1849348] Re: linux 5.4-rc4 Unable to build simple kernel module
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
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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
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-5.4.0-050400rc45.4.0-050400rc4.201910202130
all Header files related to Linux kernel version 5.4.0
ii linux-headers-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
amd64Linux kernel image for version 5.4.0 on 64 bit x86 SMP
ri linux-libc-dev:amd64 4.15.0-65.74
amd64Linux Kernel Headers for development
ii linux-modules-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux kernel extra modules for version 5.4.0 on 64 bit x86
SMP
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1849348] Re: linux 5.4-rc4 Unable to build simple kernel module
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 doesn't meet the criteria for supporting
CONFIG_CC_HAS_ASM_INLINE, so the building with the linux headers will
fail.
I manually set the CONFIG_CC_HAS_ASM_INLINE statements false in the
linux 5.4 headers (deleted the line in include/generated/autoconf.h and
set CONFIG_CC_HAS_ASM_INLINE=n in include/config/auto.conf).
With the above set, I was able to build using a gcc 7.4 compiler.
So.. either the dependency for the headers needs to include a compatible
compiler level, or the headers need to be built to disable those
features that are supplied by compilers higher then gcc 7.4.
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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
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-5.4.0-050400rc45.4.0-050400rc4.201910202130
all Header files related to Linux kernel version 5.4.0
ii linux-headers-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
amd64Linux kernel image for version 5.4.0 on 64 bit x86 SMP
ri linux-libc-dev:amd64 4.15.0-65.74
amd64Linux Kernel Headers for development
ii linux-modules-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
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[Kernel-packages] [Bug 1849348] Re: linux 5.4-rc4 Unable to build simple kernel module
See also:
https://github.com/torvalds/linux/commit/eb111869301e15b737315a46c913ae82bd19eb9d
--
You received this bug notification because you are a member of Kernel
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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
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-5.4.0-050400rc45.4.0-050400rc4.201910202130
all Header files related to Linux kernel version 5.4.0
ii linux-headers-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
amd64Linux kernel image for version 5.4.0 on 64 bit x86 SMP
ri linux-libc-dev:amd64 4.15.0-65.74
amd64Linux Kernel Headers for development
ii linux-modules-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
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[Kernel-packages] [Bug 1849348] Re: linux 5.4-rc4 Unable to build simple kernel module
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 #201910271430 SMP Sun Oct 27 18:33:09
UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
root@ubuntu_base:~/builderr# gcc --version
gcc (Ubuntu 8.3.0-6ubuntu1~18.04.1) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
root@ubuntu_base:~/builderr# make -C
/lib/modules/5.4.0-050400rc5-generic/build/ M=$PWD
make: Entering directory '/usr/src/linux-headers-5.4.0-050400rc5-generic'
AR /root/builderr/built-in.a
CC [M] /root/builderr/conftest.o
Building modules, stage 2.
MODPOST 1 modules
CC [M] /root/builderr/conftest.mod.o
LD [M] /root/builderr/conftest.ko
make: Leaving directory '/usr/src/linux-headers-5.4.0-050400rc5-generic'
--
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
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-5.4.0-050400rc45.4.0-050400rc4.201910202130
all Header files related to Linux kernel version 5.4.0
ii linux-headers-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
amd64Linux kernel image for version 5.4.0 on 64 bit x86 SMP
ri linux-libc-dev:amd64 4.15.0-65.74
amd64Linux Kernel Headers for development
ii linux-modules-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
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Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
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More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1849348] Re: linux 5.4-rc4 Unable to build simple kernel module
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
--
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
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-5.4.0-050400rc45.4.0-050400rc4.201910202130
all Header files related to Linux kernel version 5.4.0
ii linux-headers-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
amd64Linux kernel image for version 5.4.0 on 64 bit x86 SMP
ri linux-libc-dev:amd64 4.15.0-65.74
amd64Linux Kernel Headers for development
ii linux-modules-5.4.0-050400rc4-generic5.4.0-050400rc4.201910202130
amd64Linux 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
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