Hi *, when trying to build the centos-stream-9 main-automotive kernel for the x86_64 architecture as described in the automotive sig documentation https://sigs.centos.org/automotive/building/building_an_os_image_that%20uses_a_custom_kernel/, it fails.

The failing command appears to be

/usr/bin/make -s 'HOSTCFLAGS=-O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64-v2 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' 'HOSTLDFLAGS=-Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 ' -j12 ARCH=x86_64 V=1 'TARGETS=bpf cgroup mm livepatch net net/forwarding net/mptcp netfilter tc-testing memfd drivers/net/bonding iommu cachestat drivers/net' SKIP_TARGETS= FORCE_TARGETS=1 INSTALL_PATH=/home/she/rpmbuild/BUILDROOT/kernel-automotive-5.14.0-570.518_at.el9iv.x86_64/usr/libexec/kselftests VMLINUX_H= DEFAULT_INSTALL_HDR_PATH=0 install

with the error

make[3]: Entering directory '/home/she/Workspace/centos-stream-9/redhat/rpm/BUILD/kernel-5.14.0-570.518_at.el9iv/linux-5.14.0-570.518_at.el9iv.x86_64/tools/testing/selftests/bpf'

Auto-detecting system features: ... llvm: [ OFF ]

make[3]: rsync: Argument list too long make[3]: *** [Makefile:768: test_progs-no_alu32-extras] Error 127 make[3]: Leaving directory '/home/she/Workspace/centos-stream-9/redhat/rpm/BUILD/kernel-5.14.0-570.518_at.el9iv/linux-5.14.0-570.518_at.el9iv.x86_64/tools/testing/selftests/bpf' make[2]: *** [Makefile:233: install] Error 2

This is the unmodified main-automotive branch of the current centos-stream-9 kernel on a current centos-stream-9 system.

Setting ulimit -S -s unlimited for ARG_MAX 6291456 does not make any difference. It looks like the actual problem is not with the rsync command line.

Any hint what is going wrong and how to proceed?

Beste Grüße Sebastian Hetze