This bug was fixed in the package zfs-linux - 0.8.4-1ubuntu11
---------------
zfs-linux (0.8.4-1ubuntu11) groovy; urgency=medium
* Fix zfs-dkms build on arm64 with PREEMPTION and BLK_CGROUP (LP: #1892001)
- 4700-Fix-DKMS-build-on-arm64-with-PREEMPTION-and-BLK_CGRO.patch
preempt_schedule_notrace is GPL-only so redfine it to preempt_schedule
on arm64 with PREEMPTION and BLK_CGROUP enabled to 'fix' the DKMS
build failure.
-- Juerg Haefliger <jue...@canonical.com> Tue, 18 Aug 2020 11:10:41
+0200
** Changed in: zfs-linux (Ubuntu Groovy)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1892001
Title:
zfs-dkms fails to build on arm64 with PREEMPTION and BLK_CGROUP
Status in zfs-linux package in Ubuntu:
Fix Released
Status in zfs-linux source package in Bionic:
New
Status in zfs-linux source package in Focal:
New
Status in zfs-linux source package in Groovy:
Fix Released
Bug description:
On arm64 with PREEMPTION and BLK_CGROUP enabled,
preempt_schedule_notrace is being pulled in which is a GPL-only
function so the DKMS build fails:
DKMS make.log for zfs-0.8.3 for kernel 5.4.0-1015-raspi (aarch64)
Tue Aug 18 06:30:17 UTC 2020
./scripts/make_gitrev.sh
/bin/bash: ./scripts/make_gitrev.sh: No such file or directory
make: [Makefile:1512: gitrev] Error 127 (ignored)
make all-recursive
make[1]: Entering directory '/var/lib/dkms/zfs/0.8.3/build'
Making all in module
make[2]: Entering directory '/var/lib/dkms/zfs/0.8.3/build/module'
list='icp lua'; for targetdir in $list; do \
make -C $targetdir; \
done
make[3]: Entering directory '/var/lib/dkms/zfs/0.8.3/build/module/icp'
mkdir -p api core spi io os algs algs/aes algs/edonr algs/modes algs/sha1
algs/sha2 algs/skein asm-x86_64 asm-x86_64/aes asm-x86_64/modes asm-x86_64/sha1
asm-x86_64/sha2 asm-i386 asm-generic
make[3]: Leaving directory '/var/lib/dkms/zfs/0.8.3/build/module/icp'
make[3]: Entering directory '/var/lib/dkms/zfs/0.8.3/build/module/lua'
mkdir -p setjmp
make[3]: Leaving directory '/var/lib/dkms/zfs/0.8.3/build/module/lua'
make -C /lib/modules/5.4.0-1015-raspi/build M=`pwd` CONFIG_ZFS=m modules
make[3]: Entering directory '/usr/src/linux-headers-5.4.0-1015-raspi'
CC [M] /var/lib/dkms/zfs/0.8.3/build/module/avl/avl.o
CC [M] /var/lib/dkms/zfs/0.8.3/build/module/nvpair/nvpair.o
<SNIP>
CC [M] /var/lib/dkms/zfs/0.8.3/build/module/zfs/qat_compress.o
CC [M] /var/lib/dkms/zfs/0.8.3/build/module/zfs/qat_crypt.o
CC [M]
/var/lib/dkms/zfs/0.8.3/build/module/zfs/vdev_raidz_math_aarch64_neon.o
CC [M]
/var/lib/dkms/zfs/0.8.3/build/module/zfs/vdev_raidz_math_aarch64_neonx2.o
LD [M] /var/lib/dkms/zfs/0.8.3/build/module/zfs/zfs.o
Building modules, stage 2.
MODPOST 8 modules
FATAL: modpost: GPL-incompatible module zfs.ko uses GPL-only symbol
'preempt_schedule_notrace'
make[4]: *** [scripts/Makefile.modpost:94: __modpost] Error 1
make[3]: *** [Makefile:1647: modules] Error 2
make[3]: Leaving directory '/usr/src/linux-headers-5.4.0-1015-raspi'
make[2]: *** [Makefile:30: modules] Error 2
make[2]: Leaving directory '/var/lib/dkms/zfs/0.8.3/build/module'
make[1]: *** [Makefile:807: all-recursive] Error 1
make[1]: Leaving directory '/var/lib/dkms/zfs/0.8.3/build'
make: *** [Makefile:676: all] Error 2
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