Hi,

jool-dkms fails to build a module for Linux 7.2 in experimental:

DKMS (dkms-3.2.2) make.log for jool/4.1.15 for kernel 7.2-amd64 (x86_64)
Wed Sep  2 19:35:37 UTC 2026

Building module(s)
# command: make -j14 KERNELRELEASE=7.2-amd64 -C /lib/modules/7.2-amd64/build M=/var/lib/dkms/jool/4.1.15/build/src/mod/common modules && make -C /lib/modules/7.2-amd64/build M=/var/lib/dkms/jool/4.1.15/build/src/mod/nat64 modules && make -C /lib/modules/7.2-
amd64/build M=/var/lib/dkms/jool/4.1.15/build/src/mod/siit modules
make: Entering directory '/usr/src/linux-headers-7.2-amd64'
make[1]: Entering directory '/var/lib/dkms/jool/4.1.15/build/src/mod/common'
  CC [M]  rfc7915/4to6.o
  CC [M]  rfc7915/6to4.o
  CC [M]  rfc7915/common.o
  CC [M]  rfc7915/core.o
  CC [M]  address_xlat.o
  CC [M]  dev.o
  CC [M]  kernel_hook_netfilter.o
  CC [M]  kernel_hook_iptables.o
  CC [M]  log.o
  CC [M]  address.o
  CC [M]  atomic_config.o
  CC [M]  icmp_wrapper.o
  CC [M]  init.o
  CC [M]  ipv6_hdr_iterator.o
  CC [M]  joold.o
  CC [M]  packet.o
  CC [M]  rfc6052.o
  CC [M]  rtrie.o
  CC [M]  stats.o
  CC [M]  types.o
  CC [M]  translation_state.o
  CC [M]  route_out.o
  CC [M]  skbuff.o
  CC [M]  core.o
  CC [M]  error_pool.o
  CC [M]  timer.o
  CC [M]  trace.o
  CC [M]  wkmalloc.o
  CC [M]  wrapper-config.o
  CC [M]  wrapper-global.o
  CC [M]  wrapper-types.o
  CC [M]  xlator.o
  CC [M]  steps/send_packet.o
  CC [M]  nl/address.o
  CC [M]  nl/atomic_config.o
  CC [M]  nl/attribute.o
  CC [M]  nl/nl_handler.o
  CC [M]  nl/nl_core.o
  CC [M]  nl/bib.o
  CC [M]  nl/denylist4.o
  CC [M]  nl/eam.o
  CC [M]  nl/global.o
  CC [M]  nl/instance.o
  CC [M]  nl/joold.o
  CC [M]  nl/nl_common.o
  CC [M]  nl/pool4.o
  CC [M]  nl/session.o
  CC [M]  nl/stats.o
  CC [M]  db/denylist4.o
  CC [M]  db/global.o
  CC [M]  db/eam.o
  CC [M]  db/rbtree.o
  CC [M]  db/rfc6791v4.o
  CC [M]  db/rfc6791v6.o
  CC [M]  db/pool4/empty.o
  CC [M]  db/pool4/db.o
  CC [M]  db/pool4/rfc6056.o
  CC [M]  db/bib/db.o
  CC [M]  db/bib/entry.o
  CC [M]  db/bib/pkt_queue.o
  CC [M]  steps/determine_incoming_tuple.o
  CC [M]  steps/filtering_and_updating.o
  CC [M]  steps/compute_outgoing_tuple.o
  CC [M]  steps/compute_outgoing_tuple_siit.o
  CC [M]  steps/handling_hairpinning_siit.o
  CC [M]  steps/handling_hairpinning_nat64.o
  LD [M]  jool_common.o
  MODPOST Module.symvers
ERROR: modpost: "snmp_fold_field" [jool_common.ko] undefined!
make[3]: *** [/usr/src/linux-headers-7.2-common/scripts/Makefile.modpost:147: Module.symvers] Error 1
make[2]: *** [/usr/src/linux-headers-7.2-common/Makefile:2161: modpost] Error 2
make[1]: *** [/usr/src/linux-headers-7.2-common/Makefile:260: __sub-make] Error 2
make[1]: Leaving directory '/var/lib/dkms/jool/4.1.15/build/src/mod/common'
make: *** [/usr/src/linux-headers-7.2-common/Makefile:260: __sub-make] Error 2
make: Leaving directory '/usr/src/linux-headers-7.2-amd64'

# exit code: 2
# elapsed time: 00:00:18
----------------------------------------------------------------

Andreas