[linus:master] [selftest] 400e658aa0: kernel-selftests-bpf.net.tun.fail

kernel test robot
2026-04-15T13:37:09Z

Hello,

kernel test robot noticed "kernel-selftests-bpf.net.tun.fail" on:

commit: 400e658aa096cda99b37ce806ed63cfe894c9566 ("selftest: tun: Add test for sending gso packet into tun")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: kernel-selftests-bpf
version:
with following parameters:

group: net

config: x86_64-rhel-9.4-bpf
compiler: gcc-14
test machine: 16 threads Intel(R) Core(TM) i7-13620H (Raptor Lake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202604151525.8305306f-lkp@intel.com

# timeout set to 3600
# selftests: net: tun
# TAP version 13
# 1..9
# # Starting 9 tests from 5 test cases.
# # RUN tun.delete_detach_close ...
# # OK tun.delete_detach_close
# ok 1 tun.delete_detach_close
# # RUN tun.detach_delete_close ...
# # OK tun.detach_delete_close
# ok 2 tun.detach_delete_close
# # RUN tun.detach_close_delete ...
# # OK tun.detach_close_delete
# ok 3 tun.detach_close_delete
# # RUN tun.reattach_delete_close ...
# # OK tun.reattach_delete_close
# ok 4 tun.reattach_delete_close
# # RUN tun.reattach_close_delete ...
# # OK tun.reattach_close_delete
# ok 5 tun.reattach_close_delete
# # RUN tun_vnet_udptnl.4in4_1mss.send_gso_packet ...
# # OK tun_vnet_udptnl.4in4_1mss.send_gso_packet
# ok 6 tun_vnet_udptnl.4in4_1mss.send_gso_packet
# # RUN tun_vnet_udptnl.6in4_1mss.send_gso_packet ...
# # tun.c:679:send_gso_packet:Expected ret (0) == variant->data_size (1402)
# # send_gso_packet: Test terminated by assertion
# # FAIL tun_vnet_udptnl.6in4_1mss.send_gso_packet
# not ok 7 tun_vnet_udptnl.6in4_1mss.send_gso_packet
# # RUN tun_vnet_udptnl.4in6_1mss.send_gso_packet ...
# # tun.c:679:send_gso_packet:Expected ret (0) == variant->data_size (1402)
# # send_gso_packet: Test terminated by assertion
# # FAIL tun_vnet_udptnl.4in6_1mss.send_gso_packet
# not ok 8 tun_vnet_udptnl.4in6_1mss.send_gso_packet
# # RUN tun_vnet_udptnl.6in6_1mss.send_gso_packet ...
# # tun.c:679:send_gso_packet:Expected ret (0) == variant->data_size (1382)
# # send_gso_packet: Test terminated by assertion
# # FAIL tun_vnet_udptnl.6in6_1mss.send_gso_packet
# not ok 9 tun_vnet_udptnl.6in6_1mss.send_gso_packet
# # FAILED: 6 / 9 tests passed.
# # Totals: pass:6 fail:3 xfail:0 xpass:0 skip:0 error:0
not ok 19 selftests: net: tun # exit=1

The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260415/202604151525.8305306f-lkp@intel.com

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0-DAY CI Kernel Test Service