Dear Maintainer,

since kernel version 5.10 the nvidia kernel can not build any more. I tested with the latest actual kernel and header versions in debian/stable, which is 5.16, backported, 4th version, but the build failes.

I checked the buuild log, and it appears, that the build crash is related to a missing file . Please see youself below, IMHO the missing file "pahole-flags.sh" iss missing.

This is the make.log:
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make[3]: *** [/usr/src/linux-headers-5.16.0-0.bpo.4-common/scripts/Makefile.build:292: /var/lib/dkms/nvidia-legacy-340xx/340.108/build/nv-acpi.o] Fehler 1
make[2]: *** [/usr/src/linux-headers-5.16.0-0.bpo.4-common/Makefile:1870: /var/lib/dkms/nvidia-legacy-340xx/340.108/build] Fehler 2
make[2]: Verzeichnis „/usr/src/linux-headers-5.16.0-0.bpo.4-amd64“ wird verlassen
make[1]: *** [Makefile:231: __sub-make] Fehler 2
make[1]: Verzeichnis „/usr/src/linux-headers-5.16.0-0.bpo.4-common“ wird verlassen
make: *** [Makefile:211: nvidia.ko] Fehler 2
make: Verzeichnis „/var/lib/dkms/nvidia-legacy-340xx/340.108/build/uvm“ wird betreten
cd ./..; make module SYSSRC=/lib/modules/5.16.0-0.bpo.4-amd64/source SYSOUT=/lib/modules/5.16.0-0.bpo.4-amd64/build KBUILD_EXTMOD=./..
make[1]: Verzeichnis „/var/lib/dkms/nvidia-legacy-340xx/340.108/build“ wird betreten
NVIDIA: calling KBUILD...
make NV_MODULE_SUFFIX= KBUILD_OUTPUT=/lib/modules/5.16.0-0.bpo.4-amd64/build KERNEL_SOURCES=/lib/modules/5.16.0-0.bpo.4-amd64/source KERNEL_OUTPUT=/lib/modules/5.16.0-0.bpo.4-amd64/build KBUILD_VERBOSE=1 -C /lib/modules/5.16.0-0.bpo.4-amd64/source M=/var/lib/dkms/nvidia-legacy-340xx/340.108/build ARCH=x86_64 modules
make[2]: Verzeichnis „/usr/src/linux-headers-5.16.0-0.bpo.4-common“ wird betreten
make -C /usr/src/linux-headers-5.16.0-0.bpo.4-amd64 -f /usr/src/linux-headers-5.16.0-0.bpo.4-common/Makefile modules
make[3]: Verzeichnis „/usr/src/linux-headers-5.16.0-0.bpo.4-amd64“ wird betreten
test -e include/generated/autoconf.h -a -e include/config/auto.conf || (                \
echo >&2;                                                       \
echo >&2 "  ERROR: Kernel configuration is invalid.";           \
echo >&2 "         include/generated/autoconf.h or include/config/auto.conf are missing.";\
echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";      \
echo >&2 ;                                                      \
/bin/false)
/bin/sh: 1: /usr/src/linux-headers-5.16.0-0.bpo.4-common/scripts/pahole-flags.sh: not found
/bin/sh: 1: /usr/src/linux-headers-5.16.0-0.bpo.4-common/scripts/pahole-flags.sh: not found
make -f /usr/src/linux-headers-5.16.0-0.bpo.4-common/scripts/Makefile.build obj=.. \
single-build= \
need-builtin=1 need-modorder=1
/bin/sh: 1: /usr/src/linux-headers-5.16.0-0.bpo.4-common/scripts/pahole-flags.sh: not found
/usr/src/linux-headers-5.16.0-0.bpo.4-common/scripts/Makefile.build:44: /usr/src/linux-headers-5.16.0-0.bpo.4-common/../Makefile: Datei oder Verzeichnis nicht gefunden
make[4]: *** Keine Regel, um „/usr/src/linux-headers-5.16.0-0.bpo.4-common/../Makefile“ zu erstellen.  Schluss.
make[3]: *** [/usr/src/linux-headers-5.16.0-0.bpo.4-common/Makefile:1870: ..] Fehler 2
make[3]: Verzeichnis „/usr/src/linux-headers-5.16.0-0.bpo.4-amd64“ wird verlassen
make[2]: *** [Makefile:231: __sub-make] Fehler 2
make[2]: Verzeichnis „/usr/src/linux-headers-5.16.0-0.bpo.4-common“ wird verlassen
make[1]: *** [Makefile:211: nvidia.ko] Fehler 2
make[1]: Verzeichnis „/var/lib/dkms/nvidia-legacy-340xx/340.108/build“ wird verlassen
make: *** [Makefile:225: ../Module.symvers] Fehler 2
make: Verzeichnis „/var/lib/dkms/nvidia-legacy-340xx/340.108/build/uvm“ wird verlassen

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I hope this makes things clear. Thank you for any hints and helps.

Best regards

Hans