Package: spl-dkms Version: 0.6.5.8-2~bpo8+2 Severity: normal Dear Maintainer, spl-dkms fails to build with grsecurity enabled kernel. Not sure if this is a bug in spl or a grsec feature. The kernel is available from jessie backports:
dpkg -l | grep grsec ii gradm2 3.0~201408301734-1 amd64 Administration program for the grsecurity2 RBAC based ACL system ii linux-grsec-base 10~bpo8+1 all Linux image base package, grsec featureset ii linux-headers-4.7.0-1-common-grsec 4.7.8-1+grsec201610161720+1~bpo8+1 amd64 Common header files for Linux 4.7.0-1-grsec ii linux-headers-4.7.0-1-grsec-amd64 4.7.8-1+grsec201610161720+1~bpo8+1 amd64 Header files for Linux 4.7.0-1-grsec-amd64 ii linux-image-4.7.0-1-grsec-amd64 4.7.8-1+grsec201610161720+1~bpo8+1 amd64 Linux 4.7 for 64-bit PCs, Grsecurity protection ii linux-image-grsec-amd64 10~bpo8+1 amd64 Linux image meta-package, grsec featureset uname -a Linux nutch4 4.7.0-1-grsec-amd64 #1 SMP Debian 4.7.8-1+grsec201610161720+1~bpo8+1 (2016-10-20) x86_64 GNU/Linux here is the configure output when I manually try to build the spl module: dkms install -m spl -v 0.6.5.8 Running the pre_build script: checking for gawk... gawk checking metadata... META file checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking target system type... x86_64-unknown-linux-gnu checking whether to enable maintainer-specific portions of Makefiles... no checking whether make supports nested variables... yes checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking whether make sets $(MAKE)... yes checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking whether gcc understands -c and -o together... yes checking for style of include used by make... GNU checking dependency style of gcc... gcc3 checking how to print strings... printf checking for a sed that does not truncate output... /bin/sed checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for fgrep... /bin/grep -F checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B checking the name lister (/usr/bin/nm -B) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 1572864 checking whether the shell understands some XSI constructs... yes checking whether the shell understands "+="... yes checking how to convert x86_64-unknown-linux-gnu file names to x86_64-unknown-linux-gnu format... func_convert_file_noop checking how to convert x86_64-unknown-linux-gnu file names to toolchain format... func_convert_file_noop checking for /usr/bin/ld option to reload object files... -r checking for objdump... objdump checking how to recognize dependent libraries... pass_all checking for dlltool... no checking how to associate runtime and link libraries... printf %s\n checking for ar... ar checking for archiver @FILE support... @ checking for strip... strip checking for ranlib... ranlib checking command to parse /usr/bin/nm -B output from gcc object... ok checking for sysroot... no checking for mt... mt checking if mt is a manifest tool... no checking how to run the C preprocessor... gcc -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for dlfcn.h... yes checking for objdir... .libs checking if gcc supports -fno-rtti -fno-exceptions... no checking for gcc option to produce PIC... -fPIC -DPIC checking if gcc PIC flag -fPIC -DPIC works... yes checking if gcc static flag -static works... yes checking if gcc supports -c -o file.o... yes checking if gcc supports -c -o file.o... (cached) yes checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes checking whether -lc should be explicitly linked in... no checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... yes checking spl author... OpenZFS on Linux checking spl license... GPL checking linux distribution... debian checking default package type... deb checking whether rpm is available... no checking whether rpmbuild is available... no checking whether spec files are available... yes (rpm/generic/*.spec.in) checking whether dpkg is available... yes (1.17.27) checking whether dpkg-buildpackage is available... yes (1.17.27.) checking whether alien is available... no checking spl config... kernel checking kernel source directory... /lib/modules/4.7.0-1-grsec-amd64/source checking kernel build directory... /lib/modules/4.7.0-1-grsec-amd64/build checking kernel source version... 4.7.0-1-grsec-amd64 checking kernel file name for module symbols... Module.symvers checking whether debugging is enabled... no checking whether basic kmem accounting is enabled... no checking whether detailed kmem tracking is enabled... no checking whether modules can be built... no Building module: cleaning build area....(bad exit status: 2) make KERNELRELEASE=4.7.0-1-grsec-amd64....(bad exit status: 2) Any hint on how to solve that ? -- System Information: Debian Release: 8.6 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.7.0-1-grsec-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages spl-dkms depends on: ii dkms 2.2.0.3-2 ii file 1:5.22+15-2+deb8u2 ii libc6-dev [libc-dev] 2.19-18+deb8u6 ii lsb-release 4.1+Debian13+nmu1 Versions of packages spl-dkms recommends: ii spl 0.6.5.8-2~bpo8+2 spl-dkms suggests no packages. -- no debconf information